675.10 Tap Definition

[Golf Junkie]

675.10 Allows multiple motor taps from a single branch circuit as long as certain conditions are met.

My question is regarding 675.10(A)(3).
"Taps to individual motors shall not be smaller than 14awg copper and not more than 7.5m in length."

Are these "taps" the conductors from the branch circuit to the motor controller, from the controller to the motor, or both?

 

[raider1]

Welcome to the Forum.

I would say that the tap conductors would be any conductors between the the origin of the tap at the branch circuit and the final connection to the motor.

Chris

 

[Golf Junkie]

Raider1,
Thanks for the response.......even if it wasn't what I wanted to hear.:roll:

It does make sense, They say "Taps to the Motor"........if they meant taps to the controller it would say so.

GJ

 

[raider1]

Your welcome.

Sorry that my responce wasn't what you wanted to hear, hopefully the next time I respond to one of your questions you will like the answer better.

Chris

 

[Mvillines]

Welcome to the Forum.

the tap conductors would be any conductors between the the origin of the tap at the branch circuit and the final connection to the motor.

Chris

Chris I agree with your statement.

This section is gives permission to use conductors as small as 14 awg in lengths not exceeding 7.5 m on a 30 amp circuit. 675.10(A)(2) only requires overload protection for these motors, which could be thermal devices internal to the motor.

What you then have is a circuit with a 30 amp ground fault /short circuit device (breaker or fuse) and separate from this is an overload device installed anywhere from where the tap originates to the motor. Each overload device will be sized in accordance with 430.32.

Remember, Overcurrent protection = ground-fault, short-circuit, and overload protection. For motors the overload device is not required to be an integral part of the ground-fault and short-circuit devices. This is why the measurement is made from where the tap begins to the motor.