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IS/IEC 61557 : Part 7 : 2019 ( IEC 61557-7 : 2019)
Electrical Safety in Low Voltage Distribution Systems up to 1 000 V a.c. and 1 500 V d.c.-Equipment for Testing, Measuring or Monitoring of Protective Measures - Part 7 Phase Sequence
Technical Committee :
ETD 12
Price :
₹ 3,400.00 ( US$ 40.00)