UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

IEC/TR 60943

Guidance concerning the permissible temperature rise for parts of electrical equipment, in particular for terminals

active, Most Current
Buy Now
Organization: IEC
Publication Date: 1 March 2009
Status: active
Page Count: 122
ICS Code (Electrical engineering in general): 29.020
scope:

Scope and object

This report is intended for guidance in estimating the permissible values for temperature and temperature rise of component parts of electrical equipment carrying current under steady state conditions.

This report applies to electrical power connections and materials adjacent to them.

This report is concerned with the thermal effects of currents passing through connections, therefore there are no voltage limits to its application.

This report is only applicable when referred to in the appropriate product standard.

The extent and manner to which the contents of this report are used in standards is the responsibility of individual Technical Committees.

Whenever "permissible" values are stated in this report, they mean values permitted by the relevant product standard.

The present report is intended to supply:

 - general data on the structure of electric contacts and the calculation of their ohmic resistance;

 - the basic ageing mechanisms of contacts;

 - the calculation of the temperature rise of contacts and connection terminals;

 - the maximum "permissible" temperature and temperature rise for various components, in particular the contacts, the connection terminals and the conductors connected to them;

 - the general procedure to be followed by product committees for specifying the permissible temperature and temperature rise.

Document History

IEC/TR 60943
March 1, 2009
Guidance concerning the permissible temperature rise for parts of electrical equipment, in particular for terminals
Scope and object This report is intended for guidance in estimating the permissible values for temperature and temperature rise of component parts of electrical equipment carrying current under...
December 1, 2008
AMENDMENT 1 Guidance concerning the permissible temperature rise for parts of electrical equipment, in particular for terminals
Scope and object This report is intended for guidance in estimating the permissible values for temperature and temperature rise of component parts of electrical equipment carrying current under...
January 1, 1998
Guidance concerning the permissible temperature rise for parts of electrical equipment, in particular for terminals
Scope and object This report is intended for guidance in estimating the permissible values for temperature and temperature rise of component parts of electrical equipment carrying current under...
February 1, 1989
Guide for the Specification of Permissible Temperature and Temperature Rise for Parts of Electrical Equipment, in Particular for Terminals First Edition
A description is not available for this item.

References

Advertisement