Calculate Size of Circuit breaker | Size of Overload | Cable Sizing for Motors as per NEC Standard

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this video explains how to properly size each device e.g. size of circuit breaker, size of overload and cable sizing for motor loads only. this standard is not applicable for other types of loads.
The standard I followed is NEC Standard which is the most commonly used standard by design engineers.
Properly size each device will protect your motor as well as cables.

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#sizeofcircuitbreaker #overloadrelay #cablesizing #electricallectures
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I have questions.
1. Isn't cable size is based on LRA of motor? If motor is starting and stopping frequently, every time more than 5 to 6 times more current is passing through wire. Which will burn the cable. If we select the cable according to FLA.
2. Isn't the breaker capacity should be less than cable conducting capacity?

AbdulSamad-igzw
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Sir please provide information about breaker, magnetic contactor, and overload relay standerd size available in Market.

nadeemasif
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Sir how to calculate size of cable along with sc perspective

ishanksaxena