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).
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).
States, for electromechanical all-or-nothing relays, special terms and definitions used, and test and measurement procedures.
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