fixture tails

[grumpy11]

what is the min size wire used in a fixture tail

 

[infinity]

Do you have a guess? Fixture wires are covered in Article 402.

 

[grumpy11]

yes i found it some inspector told one of our guys that a fixture tail should be number 12 wire on a 2x4

 

[infinity]

#18 is the minimum size unless the load is greater than those ampacities listed in Table 402.5. Remember that when the tail conductors are smaller than the branch circuit size there are limits on the tail/conductor length. Are these 6' tails?

 

[grumpy11]

yes 6ft tails

same guy want an egc in a piece of greenfield its existing but i would say its longer then 6ft.

he maybe right may have to appeal that one.

 

[infinity]

yes 6ft tails

same guy want an egc in a piece of greenfield its existing but i would say its longer then 6ft.

he maybe right may have to appeal that one.

If longer than 6' it needs a separate EGC. If it's 3/8" FMC (Greenfield) it cannot be longer than 6'.

 

[augie47]

Is your fixture tail feeding only the one fixture ?

 

[grumpy11]

yes tail to one fixture.

 

[grumpy11]

so the allowable ampacity of a #16 tail to a fixture can only be 8 amps and so on

 

[infinity]

so the allowable ampacity of a #16 tail to a fixture can only be 8 amps and so on

Yes, you just need to follow the ampacities in the aforementioned table, T402.5.

 

[grumpy11]

that's the way i look at it . just trying to get ready to talk for my ahj .
about size wire in fixture tail

 

[don_resqcapt19]

Also look at 240.5(B)(2).