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MS IEC 60255-127:2012
Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection (IEC 60255-127:2010, IDT)
This Malaysian Standard specifies specifies minimum requirements for over/under voltage relays. The standard includes specification of the protection function, measurement characteristics and time delay characteristics.
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07/05/2019
29
NSC 05 - Generation, Transmission & Distribution of Energy
29.120.70
45.00