States the test and measurement procedures for electromechanical all-or-nothing relays within the scope of the IEC. States for electromechanical all-or-nothing relays: -special terms and definitions used (Section 2), and -test and measurement procedures (Section 3). This edition supersedes the first edition of IEC 255-7 (1978).
WITHDRAWN
IEC 60255-7:1978 ED1
WITHDRAWN
IEC 60255-7:1991 ED2
95.99
Withdrawal of Standard
Jan 9, 1998