IEC TR 61916:2017

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Resistance to heat
6 Screws, current-carrying parts and connections
   (electrical and mechanical)
7 Resistance to abnormal heat and to fire
8 Resistance of insulating materials to tracking
9 Resistance to rusting
10 Legibility, durability and indelibility of marking
11 Screw-type terminals for connecting conductors
12 Criteria for tests in accessory standards
13 Tolerances
14 Mechanical strength
15 Appropriate dimensioning of insulation distances
16 Resistance to UV
Annex A (informative) - Material selection process
Annex B (informative) - Suggested GWEPT
        temperatures
Bibliography

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.