标准摘要
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).
英文名称Electrical relays - Part 7: Test and measurement procedures for electromechanical all-or-nothing relays