Answer / vipin

1)calculate the design current based on the power and voltage
2)identify the distance to be installed
3)identify if there requires any derating factors to be considered
4)select the protection device for the design current ( should be 20% above the design current)
5)select the cable with its apacity higher than the protection device.

(2) and (3) can be ignored for very short distances

Answer / raju

Data not clear, for calculation power or current value
should be required.

Answer / k.prakashchandra

calculate the current ,then take carrying capacity as 1.5A
for copper and 1A for Al per sq mm

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Show Details FROM:Muhammed Ikram TO:qa@allinterview.com Message flagged Saturday, June 4, 2011 10:07 PMMessage bodyHello all, i want to ask a question to all of you that what is VMM (voltage monitoring module )? how it work,s? i heard somewhere that it compare 1 phase voltage to other phase voltage. but there is also some setting on it. how to set it,s setting. please tell me briefly. Thank,s and Regard,s. Muhammed Ikram.

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