What is an 86-P or an 86-A trip
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how calculate external illumintion in a compound area. for e.g. there is one open park having 600m2 area and i have to put 40w flouresent tube fitting with pole. how shall i calculate the numbers of fitting.
why the motor running in delta connection ? it can be in star?
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what is the difference between MCB & MCCB
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