MT 11 - TC 23/MT 11

IEC TR 61916:2017(E) provides guidance on requirements and tests for subjects applicable to electrical accessories that are within the scope of IEC TC 23 and its subcommittees.
This fourth edition cancels and replaces the third edition published in 2014 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) clarification of the introduction and the scope;
b) clarification of subclause 6.3;
c) modification of Clause 7;
d) modification of Clause 10;
e) addition of Annex B for temperature selection for GWEPT.

IEC/TR 61916:2009 provides recommendations and test requirements applicable to electrical accessories. It aims to harmonize general rules for the preparation of international standards in this field. It gives to that effect recommendations which are intended to be used as a guide. The second edition cancels and replaces the first edition published in 1998 and constitutes a technical revision. The main technical changes with regard to the previous edition are as follows:
- Updated reference standards.
- Introduction of appropriate dimensioning of insulation distances criteria.
- Interpretation on glow wire test.
- Indication of standard conditions for operation in service.
- Modification of Clauses 6 and 7 by including an explanatory introduction concerning how to apply the relevant tests and a simple reference to the horizontal standard.
- Modification of Clause 12: Tolerances.