Changes

Jump to: navigation, search

General Rules for Dimensioning of Contacts

582 bytes removed, 13:01, 26 January 2023
no edit summary
===<!--6.4.6-->General Rules for Dimensioning of Contacts===
*'''Recommended Minimum Contact Forces at Slightly Sliding Contact Make:'''
<table class="twocolortable" style="text-align: left; font-size: 12px;width:40%">
</table>
*'''Contact Force Recommendations:'''
{| class="twocolortable" style="text-align: left; font-size: 12px;width:40%"
*'''General Rules for Dimensioning of Contact Rivets'''
[[File:General Rules for Dimensioning of Contact Rivets.jpg|left|thumb|Figure 1: General Rules for Dimensioning of Contact Rivets]]
{| class="twocolortable" style="text-align: left; font-size: 12px;width:100%"
|-
*'''Head diameter for electrical loads'''
{| class="twocolortable" style="text-align: left; font-size: 12px;width:40%"
|-
|For AC currents:
|approx. 1 – 1.5 A/mm²
|-
|For 1 A
|min. 2 mm head diameter
|-
|10 A
|approx. 3 – 3.5 mm head diameter
|-
|20 A
|approx. 5 mm head diameter
|-
|For DC currents:
|approx. 0.5 – 0.8 A/mm²
|}
 
 
*'''Head radius R for electrical loads'''
 
{| class="twocolortable" style="text-align: left; font-size: 12px;width:40%"
|-
|for I < 1 A
|R &#8776; 1,5 mm
|-
|I = 6 A
|R &#8776; 5 mm
|-
|I = 10 A
|R &#8776; 10 mm
|-
|I = 20 A
|R &#8776; 15 mm
|}
*'''Failure Probability of Single and Double (Bifurcated) Contacts''' (according to Thielecke)
{| class="twocolortable" style="text-align: left; font-size: 12px;width:100%"
<div class="multiple-images">
<figure id="fig:Failure probability of a contact as a function of the voitage">
[[File:Failure probability of a contact as a function of the voitage.jpg|left|thumb|Figure 2: Failure probability of a contact as a function of the voltage (according to Kirchdorfer); Ag/Ni10; 10 mA]]
</figure>
<figure id="fig:Failure probability of a contact as a function of the current">
[[File:Failure probability of a contact as a function of the current.jpg|left|thumb|Figure 3: Failure probability of a contact as a function of the current (according to Kirchdorfer); Ag/Ni10; F<sub>k</sub> = 0.45 N; U = 24 V]]
</figure>
</div>
Retrieved from "https://www.electrical-contacts-wiki.com/index.php?title=Special:MobileDiff/5004...5520"

Navigation menu

Powered by