IEC 60255-8:1978

Electrical relays - Part 8: Thermal electrical relays

This edition supersedes the first edition of IEC 255-8 (1978) and IEC 255-17 (1982). Applies to dependent specified time electrical measuring relays which protect equipment from electrical thermal damage by the measurement of current flowing in protected equipment. States the particular requirements for thermal electrical relays. Is to be read in conjunction with higher level documents in the IEC 255 series.

OEN:

IEC

Langue:

English

Code(s) de l'ICS:

29.120.70

Statut:

Révisé

Date de Publication:

1977-12-31

Numéro Standard:

IEC 60255-8:1978