Answer / engr.shahbul

5(fist Digit)-Limited protection against dust ingress.
(no harmful deposit)
5(2nd Digit)-Protected against low pressure water jets from any direction. Limited ingress permitted.

Difference between ELCB and RCCB?

5 Answers  

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i have completed deee and i've (June2012-feb 2015 experience in electrical maintenance in pvt ltd company.company having HT & LT electrical power.how to apply electrical C-license ,NOW I was resigned my job,what are requirements of applying for c-license

0 Answers  

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how braking & making capacity of circuit breaker is calculated?

0 Answers  

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plz tell me about BACK emf and how it generates?

2 Answers  

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How to test and satisfy the conditions of the vector group YNd1 for power transformer?

1 Answers   Areva,

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how does an open delta transformer works

2 Answers  

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HOW TO CALCULATE BATTERY BACKUP TIME & AH CAPACITY AGAINST UPS KVA RATING?

2 Answers  

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Waht is Inductor?

2 Answers  

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EXPLAIN THE WORKING OF SERIES REACTOR IN HT CAPACITOR BANKS (FOR VOLTAGES & CURRENTS)

1 Answers  

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one kva is equal to how much amps?

14 Answers  

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WHAT is the no of starts/hr for 3.3 KV, 300 KW motor. Motor is vertical flange type.

1 Answers   DAE, Siemens,

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Pls explain about full theory of salient pole generator?

1 Answers   Kirloskar,

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