Answer / sath

+ or - 1% of electrical frequency.

Answer / tameshwar singh

Its range is 48.5 to 51.5 Hz(+-3%)
and for voltage +-5%

Answer / rahul

+or-3%

Answer / virendra patil

it is 5%

Answer / harish khera

Tolerance of electrical frequency for India is 1% ie 49.5-50.5 Hz.

Answer / swaminathan

It should be between 49 to 50.5 Hz for the safe operation
of all electrical gadgets and equipments.

This is also the satndard specified under the Indian
Electricity laws in India.

Answer / satya

1%

Answer / m.galal

i don't care

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