HD 21 applies to rigid and flexible cables with insulation and sheath, if any, based on polyvinyl chloride, of rated voltages Uo/U up to and including 450/750 V used in power installations of nominal voltage not exceeding 450/750 V A.C. This Part 2 specifies the methods of carrying out the tests specified in HD 21 in conjunction with harmonised documents HD 405 Part 1 and HD 505. General Requirements are specified in Part 1 of HD 21. Particular types of cable are specified in Part 3 onwards of HD 21, and are hereafter referred to as "the particular specifications".
Legislation related to this standard
Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
Harmonized/Supporting
WITHDRAWN
HD 21.2 S2:1982
WITHDRAWN
HD 21.2 S2:1990
99.60
Withdrawal effective
Jun 1, 1998
WITHDRAWN
HD 21.2 S2:1990/A11:1995
WITHDRAWN
HD 21.2 S2:1990/A4:1993
WITHDRAWN
HD 21.2 S2:1990/A3:1993
WITHDRAWN
HD 21.2 S2:1990/A13:1995
WITHDRAWN
HD 21.2 S2:1990/A2:1990
WITHDRAWN
HD 21.2 S2:1990/A6:1995
WITHDRAWN
HD 21.2 S3:1997
