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200 10$aASA C37.1-1950 $eASA American Standard for Relays Associated with Electric Power Apparatus /$fIEEE
210  1$a[Place of publication not identified] :$cIEEE,$d1949.
215   $a1 online resource
330   $aThis standard covers all relays directly associated with electric power apparatus. However, it relates only to relays of types directly associated with power switchgear. It does not cover relays of types designed primarily for industrial control, excitation, or governor regulating, telephone, telegraph, traffic signal, or similar purpose.
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