Low-voltage switchgear and controlgear- Part 5: Control circuit devices and switching elements - Section 1: Electromechanical control circuit devices - Amendment 1

رقم المستند: NL IEC 60947 5 1 A1 : 2003
القطاع: Electrical Engineering
TC: NL TC EO
ICS: 29.120.50
IEC 60947-5-1:2016 RLV contains both the official IEC International Standard and its Redline version. The Redline version is not an official document, it is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 60947-5-1:2016 applies to control circuit devices and switching elements intended for controlling, signalling, interlocking, etc., of switchgear and controlgear. It applies to control circuit devices having a rated voltage not exceeding 1 000 V a.c. (at a frequency not exceeding 1 000 Hz) or 600 V d.c. This fourth edition cancels and replaces the third edition published in 2003 and its Amendment 1:2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) update of normative references; b) update and restructuration of subclauses in 7.1; c) addition of material requiremen