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Kleine und mittlere elektrische Last - Revision history
2024-03-29T02:30:36Z
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Doduco Admin: /* Kleine und mittlere elektrische Last */
2023-01-11T08:30:11Z
<p><span dir="auto"><span class="autocomment">Kleine und mittlere elektrische Last</span></span></p>
<table class="diff diff-contentalign-left" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 08:30, 11 January 2023</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l71" >Line 71:</td>
<td colspan="2" class="diff-lineno">Line 71:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Kontaktwerkstoffes ist die Lastart z.B. ohmsche-, induktive-, kapazitive-,</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Kontaktwerkstoffes ist die Lastart z.B. ohmsche-, induktive-, kapazitive-,</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Motorlast, u.a., d.h. der zeitliche Verlauf des Schaltstromes entscheidend.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Motorlast, u.a., d.h. der zeitliche Verlauf des Schaltstromes entscheidend.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><figure id="fig:Application ranges switching current and voltage"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[File:Application ranges switching current and voltage.jpg|right|thumb|Figure 2: Anwendungsbereiche (Schaltstrom und -spannung) für Kontaktwerkstoffe in Schaltgeräten der Informationstechnik mit Übergang zur Energietechnik]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></figure></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Unter Berücksichtigung der Zuordnung schaltender Kontakte zu elektrischen</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Unter Berücksichtigung der Zuordnung schaltender Kontakte zu elektrischen</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l77" >Line 77:</td>
<td colspan="2" class="diff-lineno">Line 80:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Energietechnik gegeben. Als Vergleichsbasis dienen jeweils Schaltstrom und</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Energietechnik gegeben. Als Vergleichsbasis dienen jeweils Schaltstrom und</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>-spannung.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>-spannung.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"><figure id="fig:Application ranges switching current and voltage"></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[File:Application ranges switching current and voltage.jpg|right|thumb|Figure 2: Anwendungsbereiche (Schaltstrom und -spannung) für Kontaktwerkstoffe in Schaltgeräten der Informationstechnik mit Übergang zur Energietechnik]]</del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></figure></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Bei kleinen elektrischen Lasten kommen aufgrund ihrer hohen chemischen</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Bei kleinen elektrischen Lasten kommen aufgrund ihrer hohen chemischen</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Beständigkeit vor allem hochedle Werkstoffe auf Au- und Pt-Metall-Basis zum</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Beständigkeit vor allem hochedle Werkstoffe auf Au- und Pt-Metall-Basis zum</div></td></tr>
</table>
Doduco Admin
https://www.electrical-contacts-wiki.com/index.php?title=Kleine_und_mittlere_elektrische_Last&diff=5394&oldid=prev
Doduco Admin: /* Kleine und mittlere elektrische Last */
2023-01-11T08:28:33Z
<p><span dir="auto"><span class="autocomment">Kleine und mittlere elektrische Last</span></span></p>
<table class="diff diff-contentalign-left" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 08:28, 11 January 2023</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l73" >Line 73:</td>
<td colspan="2" class="diff-lineno">Line 73:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Unter Berücksichtigung der Zuordnung schaltender Kontakte zu elektrischen</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Unter Berücksichtigung der Zuordnung schaltender Kontakte zu elektrischen</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Lastbereichen wird in <del class="diffchange diffchange-inline">(</del><xr id="fig:Application ranges switching current and voltage"/><!--Fig. 6.2--><del class="diffchange diffchange-inline">) </del>ein Überblick über die Einsatzbereiche der</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Lastbereichen wird in <xr id="fig:Application ranges switching current and voltage"/><!--Fig. 6.2--> ein Überblick über die Einsatzbereiche der</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Kontaktwerkstoffe in Schaltgeräten der Informationstechnik mit Übergang zur</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Kontaktwerkstoffe in Schaltgeräten der Informationstechnik mit Übergang zur</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Energietechnik gegeben. Als Vergleichsbasis dienen jeweils Schaltstrom und</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Energietechnik gegeben. Als Vergleichsbasis dienen jeweils Schaltstrom und</div></td></tr>
</table>
Doduco Admin
https://www.electrical-contacts-wiki.com/index.php?title=Kleine_und_mittlere_elektrische_Last&diff=5393&oldid=prev
Doduco Admin: /* Kleine und mittlere elektrische Last */
2023-01-11T08:27:42Z
<p><span dir="auto"><span class="autocomment">Kleine und mittlere elektrische Last</span></span></p>
<table class="diff diff-contentalign-left" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 08:27, 11 January 2023</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7" >Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Mit Hilfe der empirisch ermittelten Lichtbogengrenzkurven lassen sich typische</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Mit Hilfe der empirisch ermittelten Lichtbogengrenzkurven lassen sich typische</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Schaltvorgänge voneinander unterscheiden. Wie aus <del class="diffchange diffchange-inline">(</del><xr id="fig:Arc_limiting_graphs"/><!--Fig. 6.1--><del class="diffchange diffchange-inline">) </del>hervorgeht, hängt</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Schaltvorgänge voneinander unterscheiden. Wie aus <xr id="fig:Arc_limiting_graphs"/><!--Fig. 6.1--> hervorgeht, hängt</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>es von Strom und Spannung ab, ob ein lichtbogenfreies Schalten, eine</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>es von Strom und Spannung ab, ob ein lichtbogenfreies Schalten, eine</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Glimmentladung, ein instabiler kurzer Lichtbogen oder ein voll ausgebildeter</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Glimmentladung, ein instabiler kurzer Lichtbogen oder ein voll ausgebildeter</div></td></tr>
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Doduco Admin
https://www.electrical-contacts-wiki.com/index.php?title=Kleine_und_mittlere_elektrische_Last&diff=4594&oldid=prev
Doduco Admin: /* Kleine und mittlere elektrische Last */
2022-12-09T09:43:48Z
<p><span dir="auto"><span class="autocomment">Kleine und mittlere elektrische Last</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 09:43, 9 December 2022</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7" >Line 7:</td>
<td colspan="2" class="diff-lineno">Line 7:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Mit Hilfe der empirisch ermittelten Lichtbogengrenzkurven lassen sich typische</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Mit Hilfe der empirisch ermittelten Lichtbogengrenzkurven lassen sich typische</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Schaltvorgänge voneinander unterscheiden. Wie aus <xr id="fig:Arc_limiting_graphs"/><!--Fig. 6.1--> hervorgeht, hängt</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Schaltvorgänge voneinander unterscheiden. Wie aus <ins class="diffchange diffchange-inline">(</ins><xr id="fig:Arc_limiting_graphs"/><!--Fig. 6.1--><ins class="diffchange diffchange-inline">) </ins>hervorgeht, hängt</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>es von Strom und Spannung ab, ob ein lichtbogenfreies Schalten, eine</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>es von Strom und Spannung ab, ob ein lichtbogenfreies Schalten, eine</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Glimmentladung, ein instabiler kurzer Lichtbogen oder ein voll ausgebildeter</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Glimmentladung, ein instabiler kurzer Lichtbogen oder ein voll ausgebildeter</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l14" >Line 14:</td>
<td colspan="2" class="diff-lineno">Line 14:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>und Schaltatmosphäre, wobei letztere im vorliegenden Anwendungsfall Luft ist.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>und Schaltatmosphäre, wobei letztere im vorliegenden Anwendungsfall Luft ist.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><figure id="fig:Arc_limiting_graphs"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><figure id="fig:Arc_limiting_graphs"></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:Arc-limiting graphs.jpg|right|thumb|Lichtbogengrenzkurve (schematisch)) 1. lichtbogenfreies Schalten<br /> 2. instabile, kurze Lichtbögen<br />3. Glimmentladung <br />4. voll ausgebildete Lichtbögen]]</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:Arc-limiting graphs.jpg|right|thumb|<ins class="diffchange diffchange-inline">Figure 1: </ins>Lichtbogengrenzkurve (schematisch)) 1. lichtbogenfreies Schalten<br /> 2. instabile, kurze Lichtbögen<br />3. Glimmentladung <br />4. voll ausgebildete Lichtbögen]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></figure></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></figure></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Bei der unterschiedlichen Beanspruchung der Kontaktstücke in den verschiedenen</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Bei der unterschiedlichen Beanspruchung der Kontaktstücke in den verschiedenen</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l73" >Line 73:</td>
<td colspan="2" class="diff-lineno">Line 73:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Unter Berücksichtigung der Zuordnung schaltender Kontakte zu elektrischen</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Unter Berücksichtigung der Zuordnung schaltender Kontakte zu elektrischen</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Lastbereichen wird in <xr id="fig:Application ranges switching current and voltage"/><!--Fig. 6.2--> ein Überblick über die Einsatzbereiche der</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Lastbereichen wird in <ins class="diffchange diffchange-inline">(</ins><xr id="fig:Application ranges switching current and voltage"/><!--Fig. 6.2--><ins class="diffchange diffchange-inline">) </ins>ein Überblick über die Einsatzbereiche der</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Kontaktwerkstoffe in Schaltgeräten der Informationstechnik mit Übergang zur</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Kontaktwerkstoffe in Schaltgeräten der Informationstechnik mit Übergang zur</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Energietechnik gegeben. Als Vergleichsbasis dienen jeweils Schaltstrom und</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Energietechnik gegeben. Als Vergleichsbasis dienen jeweils Schaltstrom und</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>-spannung.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>-spannung.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><figure id="fig:Application ranges switching current and voltage"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><figure id="fig:Application ranges switching current and voltage"></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:Application ranges switching current and voltage.jpg|right|thumb|Anwendungsbereiche (Schaltstrom und -spannung) für Kontaktwerkstoffe in Schaltgeräten der Informationstechnik mit Übergang zur Energietechnik]]</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:Application ranges switching current and voltage.jpg|right|thumb|<ins class="diffchange diffchange-inline">Figure 2: </ins>Anwendungsbereiche (Schaltstrom und -spannung) für Kontaktwerkstoffe in Schaltgeräten der Informationstechnik mit Übergang zur Energietechnik]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></figure></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></figure></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Bei kleinen elektrischen Lasten kommen aufgrund ihrer hohen chemischen</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Bei kleinen elektrischen Lasten kommen aufgrund ihrer hohen chemischen</div></td></tr>
</table>
Doduco Admin
https://www.electrical-contacts-wiki.com/index.php?title=Kleine_und_mittlere_elektrische_Last&diff=3967&oldid=prev
Teitscheid: German Translation
2014-09-20T17:10:27Z
<p>German Translation</p>
<table class="diff diff-contentalign-left" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 17:10, 20 September 2014</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l72" >Line 72:</td>
<td colspan="2" class="diff-lineno">Line 72:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Motorlast, u.a., d.h. der zeitliche Verlauf des Schaltstromes entscheidend.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Motorlast, u.a., d.h. der zeitliche Verlauf des Schaltstromes entscheidend.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><xr id="fig:Application ranges switching current and voltage"/><!--Fig. 6.2--> <del class="diffchange diffchange-inline">gives an overview for commonly used electrical contact materials for different load ranges </del>in <del class="diffchange diffchange-inline">switches used in the information technology up to the transition range towards power switching applications</del>. <del class="diffchange diffchange-inline">The ranges are illustrated as a function of switching current and voltage</del>.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Unter Berücksichtigung der Zuordnung schaltender Kontakte zu elektrischen</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Lastbereichen wird in </ins><xr id="fig:Application ranges switching current and voltage"/><!--Fig. 6.2--> <ins class="diffchange diffchange-inline">ein Überblick über die Einsatzbereiche der</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Kontaktwerkstoffe </ins>in <ins class="diffchange diffchange-inline">Schaltgeräten der Informationstechnik mit Übergang zur</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Energietechnik gegeben</ins>. <ins class="diffchange diffchange-inline">Als Vergleichsbasis dienen jeweils Schaltstrom und</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">-spannung</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><figure id="fig:Application ranges switching current and voltage"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><figure id="fig:Application ranges switching current and voltage"></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:Application ranges switching current and voltage.jpg|right|thumb|<del class="diffchange diffchange-inline">Application ranges </del>(<del class="diffchange diffchange-inline">switching current and voltage</del>) <del class="diffchange diffchange-inline">of contact materials for</del></div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:Application ranges switching current and voltage.jpg|right|thumb|<ins class="diffchange diffchange-inline">Anwendungsbereiche </ins>(<ins class="diffchange diffchange-inline">Schaltstrom und -spannung</ins>) <ins class="diffchange diffchange-inline">für Kontaktwerkstoffe in Schaltgeräten der Informationstechnik mit Übergang zur Energietechnik</ins>]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">information technology and transitioning into the power switching devices</del>]]</div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></figure></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></figure></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">For lower electrical loads mainly high precious materials based on </del>Au <del class="diffchange diffchange-inline">and </del>Pt <del class="diffchange diffchange-inline">are used because of their high corrosion resistance</del>, <del class="diffchange diffchange-inline">the latter materials however used only </del>in <del class="diffchange diffchange-inline">limited quantities because of the high price of platinum metals</del>. Ag <del class="diffchange diffchange-inline">based materials cover the medium load range and are alloyed with Pd for currents </del>< 1A <del class="diffchange diffchange-inline">and voltages </del>> 24V, <del class="diffchange diffchange-inline">and for loads above these levels Ag composite materials with additions of Ni, or the metal oxides </del>SnO<sub>2</sub>, ZnO<del class="diffchange diffchange-inline">, or </del>CdO <del class="diffchange diffchange-inline">are used</del>. <del class="diffchange diffchange-inline">While the </del>Pd <del class="diffchange diffchange-inline">addition reduces the silver sulfide formation </del>in <del class="diffchange diffchange-inline">sulfur containing environments</del>, <del class="diffchange diffchange-inline">adding metal oxides increases the resistance against welding and arc erosion at higher make currents</del>. <del class="diffchange diffchange-inline">At high switching currents and switching frequency tungsten containing contacts are used</del>, <del class="diffchange diffchange-inline">mainly as switching pre</del>-<del class="diffchange diffchange-inline">contacts which absorb the electrical arcs at high make and break currents</del></div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Bei kleinen elektrischen Lasten kommen aufgrund ihrer hohen chemischen</ins></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">while parallel contacts mainly produced from silver containing materials such as </del>AgNi0<del class="diffchange diffchange-inline">.</del>15 <del class="diffchange diffchange-inline">(Fine-Grain Silver) are employed for current carrying in the closed condition</del>.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Beständigkeit vor allem hochedle Werkstoffe auf </ins>Au<ins class="diffchange diffchange-inline">- und </ins>Pt<ins class="diffchange diffchange-inline">-Metall-Basis zum</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Einsatz</ins>, <ins class="diffchange diffchange-inline">letztere jedoch aus Preisgründen nur noch </ins>in <ins class="diffchange diffchange-inline">geringem Umfang</ins>.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Werkstoffe auf </ins>Ag<ins class="diffchange diffchange-inline">-Basis decken den mittleren Lastbereich ab, bei Strömen</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><1A <ins class="diffchange diffchange-inline">und Spannungen </ins>>24V <ins class="diffchange diffchange-inline">häufig mit Pd legiert</ins>, <ins class="diffchange diffchange-inline">bei größeren Strömen als</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Verbundwerkstoff mit Nickel bzw. den Metalloxiden </ins>SnO<sub>2</sub>, ZnO <ins class="diffchange diffchange-inline">oder </ins>CdO <ins class="diffchange diffchange-inline">als</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Partner</ins>. <ins class="diffchange diffchange-inline">Während der </ins>Pd<ins class="diffchange diffchange-inline">-Zusatz weitgehend die Silbersulfid-Bildung </ins>in</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">schwefelhaltiger Atmosphäre verhindert</ins>, <ins class="diffchange diffchange-inline">erhöhen die Metalloxid-Zusätze die</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Sicherheit gegen ein Verschweißen der Kontaktstücke bei höheren Einschaltströmen</ins>.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Bei hohen Schaltströmen in Verbindung mit hohen Schaltspielzahlen</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">werden wolframhaltige Werkstoffe, vor allem als Vorkontakte eingesetzt</ins>, <ins class="diffchange diffchange-inline">die die</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Beanspruchung durch Schaltlichtbögen beim Ein</ins>- <ins class="diffchange diffchange-inline">und Ausschalten übernehmen,</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">während die Stromführung durch Parallelkontakte überwiegend mit</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">silberhaltigen Kontaktwerkstoffen wie </ins>AgNi0<ins class="diffchange diffchange-inline">,</ins>15 <ins class="diffchange diffchange-inline">erfolgt</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">Primarily the specific stresses on the contact assemblies must be considered during the selection of contact materials</del>:</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Grundsätzlich sind bei der Auswahl eines Kontaktwerkstoffes die Beanspruchungen</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">zu berücksichtigen, denen die Kontaktstellen im Einsatzfall ausgesetzt</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">sind</ins>:</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*<del class="diffchange diffchange-inline">During make of bouncing contacts mechanical wear</del>, <del class="diffchange diffchange-inline">arc erosion, and material transfer occur, the latter mostly in DC switching circuits</del>.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*<ins class="diffchange diffchange-inline">Beim Einschalten prellender Kontaktstücke treten mechanischer Abrieb</ins>, <ins class="diffchange diffchange-inline">Materialwanderung insbesondere bei Gleichstromlast und Lichtbogenabbrand auf</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*<del class="diffchange diffchange-inline">In the closed condition the value and consistency of the contact resistance must be considered</del>. <del class="diffchange diffchange-inline">Both are affected by the resistance to corrosion and changes in composition caused by the effects of arcing</del>.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*<ins class="diffchange diffchange-inline">Im geschlossenen Zustand müssen Höhe und Konstanz des Kontaktwiderstandes berücksichtigt werden</ins>. <ins class="diffchange diffchange-inline">Beides wird vor allem durch die Beständigkeit gegen Korrosion und Änderungen des Werkstoffgefüges infolge Lichtbogeneinwirkung bestimmt</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*<del class="diffchange diffchange-inline">During off-switching (break) the frictional wear leads to material loss</del>; <del class="diffchange diffchange-inline">besides this material transfer and arc erosion effect contact life</del>.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*<ins class="diffchange diffchange-inline">Beim Ausschalten ensteht infolge Reibbeanspruchung mechanischer Abrieb</ins>; <ins class="diffchange diffchange-inline">daneben treten Materialwanderung und Lichtbogenabbrand auf</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Referenzen==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Referenzen==</div></td></tr>
</table>
Teitscheid
https://www.electrical-contacts-wiki.com/index.php?title=Kleine_und_mittlere_elektrische_Last&diff=3966&oldid=prev
Teitscheid: temp edit
2014-09-20T17:02:52Z
<p>temp edit</p>
<p><b>New page</b></p><div>===<!--6.1.1-->Kleine und mittlere elektrische Last===<br />
<br />
Schaltvorgänge bei kleinen und mittleren elektrischen Lasten treten z.B. in<br />
Relais und Schaltern der Messtechnik, Informationstechnik, Kfz-Technik und<br />
Hausgerätetechnik auf. Die Schaltspannung liegt dabei üblicherweise zwischen<br />
μV und 400 V, der Schaltstrom zwischen μA und ca. 100 A.<br />
<br />
Mit Hilfe der empirisch ermittelten Lichtbogengrenzkurven lassen sich typische<br />
Schaltvorgänge voneinander unterscheiden. Wie aus <xr id="fig:Arc_limiting_graphs"/><!--Fig. 6.1--> hervorgeht, hängt<br />
es von Strom und Spannung ab, ob ein lichtbogenfreies Schalten, eine<br />
Glimmentladung, ein instabiler kurzer Lichtbogen oder ein voll ausgebildeter<br />
Lichtbogen auftritt. Die Strom-Spannungsverläufe sind dabei abhängig vom<br />
verwendeten Kontaktwerkstoff. Weitere Einflussgrößen sind Kontaktabstand<br />
und Schaltatmosphäre, wobei letztere im vorliegenden Anwendungsfall Luft ist.<br />
<figure id="fig:Arc_limiting_graphs"><br />
[[File:Arc-limiting graphs.jpg|right|thumb|Lichtbogengrenzkurve (schematisch)) 1. lichtbogenfreies Schalten<br /> 2. instabile, kurze Lichtbögen<br />3. Glimmentladung <br />4. voll ausgebildete Lichtbögen]]<br />
</figure><br />
Bei der unterschiedlichen Beanspruchung der Kontaktstücke in den verschiedenen<br />
Anwendungen erscheint es zweckmäßig, die gesamte Breite der möglichen<br />
Lastbereiche in Anlehnung an die Lichtbogengrenzkurven in vier<br />
Teilbereiche zu unterteilen, in denen jeweils charakteristische physikalische<br />
Erscheinungen auftreten:<br />
<br />
*Trocken schaltende Kontakte <br />U < 80mV <br />I < 10mA <br /> <br />
<br />
*Kontakte mit geringer Last <br />U = 80 to 300mV <br />I < 10mA<br /><br />
<br />
*Kontakte im Zwischenlastbereich <br />U = 300mV – 10V <br />I = 10mA – 100mA<br /><br />
<br />
*Kontakte mit höherer Last <br />U > 10V <br />I > 300mA<br /><br />
<br />
*'''Trocken schaltende Kontakte'''<br />
Dieser Lastbereich ist dadurch gekennzeichnet, dass die Spannung unterhalb<br />
der Entfestigungsspannung des jeweiligen Kontaktwerkstoffes (< ca. 80 mV)<br />
und die Stromstärke unterhalb 10 mA liegen. Aufgrund dieser geringen elektrischen<br />
Last erfolgen die Schaltvorgänge ohne elektrische Entladungen und<br />
ohne nennenswerte thermische Beanspruchung der Kontaktstelle. Vor allem<br />
chemische und mechanische Einflüsse sowie Staub- und Abriebpartikel auf<br />
Kontaktoberflächen bestimmen das Kontaktverhalten. Die geforderte hohe<br />
Kontaktzuverlässigkeit wird nur durch korrosionsbeständige Kontaktwerkstoffe<br />
erreicht. Da Staubpartikel und Abriebprodukte im „dry circuit”-Bereich die<br />
häufigste Ausfallursache darstellen, liegt die Problemlösung im Einsatz von<br />
Doppel- oder Mehrfachkontakten.<br />
<br />
*'''Kontakte für geringe Last'''<br />
In diesem Lastbereich liegen die Spannung zwischen Entfestigungs- und<br />
Schmelzspannung und die Stromstärke unterhalb 10 mA. Aufgrund der gegenüber<br />
dem “dry circuit”-Bereich höheren Spannung kommt es beim Schaltvorgang<br />
zu einer temperaturinduzierten mechanischen Entfestigung in den<br />
kontaktgebenden Oberflächenbereichen und damit zu einer Vergrößerung der<br />
Kontaktzonen. Neben einer hohen Korrosionsbeständigkeit wird auch eine<br />
hohe Härte von den Kontaktwerkstoffen verlangt.<br />
<br />
*'''Kontakte für Lasten im Zwischenbereich'''<br />
Dieser Lastbereich ist dadurch charakterisiert, dass die Spannung unterhalb<br />
der Lichtbogenmindestspannung liegt und die Stromstärke < 300 mA beträgt.<br />
In diesem Bereich treten Entladungen auf, die auf Kontaktoberflächen vorhandene<br />
Fremdschichten mindestens teilweise elektrisch und thermisch zerstören<br />
können. Bei zu geringer elektrischer Last werden organische Fremdschichten<br />
nicht vollständig thermisch zersetzt, was zu einem steilen Anstieg<br />
des Kontaktwiderstandes führen kann. Weiterhin kann in Gleichstromkreisen<br />
durch „kurze Bögen“ eine Materialwanderung auftreten. In diesem Bereich<br />
werden korrosionsbeständige sowie gegenüber Materialwanderung<br />
weitgehend resistente Kontaktwerkstoffe eingesetzt.<br />
<br />
*'''Kontakte für höhere Last'''<br />
Das Kennzeichen dieses Lastbereichs ist das Auftreten stabiler Lichtbögen.<br />
Infolge Wechselwirkung zwischen Kontaktwerkstoff und Lichtbogen wird die<br />
Lebensdauer der Kontaktstücke durch Abbrand oder Materialwanderung, bei<br />
hohen Einschaltströmen durch Verschweißen begrenzt. Für die Wahl des<br />
Kontaktwerkstoffes ist die Lastart z.B. ohmsche-, induktive-, kapazitive-,<br />
Motorlast, u.a., d.h. der zeitliche Verlauf des Schaltstromes entscheidend.<br />
<br />
<xr id="fig:Application ranges switching current and voltage"/><!--Fig. 6.2--> gives an overview for commonly used electrical contact materials for different load ranges in switches used in the information technology up to the transition range towards power switching applications. The ranges are illustrated as a function of switching current and voltage.<br />
<figure id="fig:Application ranges switching current and voltage"><br />
[[File:Application ranges switching current and voltage.jpg|right|thumb|Application ranges (switching current and voltage) of contact materials for<br />
information technology and transitioning into the power switching devices]]<br />
</figure><br />
For lower electrical loads mainly high precious materials based on Au and Pt are used because of their high corrosion resistance, the latter materials however used only in limited quantities because of the high price of platinum metals. Ag based materials cover the medium load range and are alloyed with Pd for currents < 1A and voltages > 24V, and for loads above these levels Ag composite materials with additions of Ni, or the metal oxides SnO<sub>2</sub>, ZnO, or CdO are used. While the Pd addition reduces the silver sulfide formation in sulfur containing environments, adding metal oxides increases the resistance against welding and arc erosion at higher make currents. At high switching currents and switching frequency tungsten containing contacts are used, mainly as switching pre-contacts which absorb the electrical arcs at high make and break currents<br />
while parallel contacts mainly produced from silver containing materials such as AgNi0.15 (Fine-Grain Silver) are employed for current carrying in the closed condition.<br />
<br />
Primarily the specific stresses on the contact assemblies must be considered during the selection of contact materials:<br />
<br />
*During make of bouncing contacts mechanical wear, arc erosion, and material transfer occur, the latter mostly in DC switching circuits.<br />
<br />
*In the closed condition the value and consistency of the contact resistance must be considered. Both are affected by the resistance to corrosion and changes in composition caused by the effects of arcing.<br />
<br />
*During off-switching (break) the frictional wear leads to material loss; besides this material transfer and arc erosion effect contact life.<br />
<br />
==Referenzen==<br />
[[Anwendungstabellen_und_Richtwerte_für_den_Einsatz_elektrischer_Kontakte#Referenzen|Referenzen]]<br />
<br />
[[en:Low_and_Medium_Electrical_Loads]]</div>
Teitscheid