Snipping Strands of Stranded Conductors

[woodseng]

I have always thought that the Code (CEC and/or NEC) inhibited the snipping off of some strands of conductors - say for example - to make a larger conductor fit into a smaller lug. I thought that the correct way to do it would be to crimp on a reducer (for example if you use #10 or #8 for voltage drop to an outlet that has terminals for #12).

However, I can not find a specific code item for this. Perhaps it is just good practice?

 

[dpc]

The lug will be listed for use with certain conductor sizes and will have instructions for use. Anything outside of that means the lug is not correctly applied and is a code violation. And stupid.

 

[DRWeig]

DPC is right. You won't find a specific code reference for snipping strands. Following manufacturers' instructions is implied.

Best to you,

Goober Dave

Haven't see the forum policies? Do so now: Forum Policies

 

[jraef]

Actually, it is in there. 110.14 (A)

Terminals. Connection of conductors to terminal parts
shall ensure a thoroughly good connection without damaging
the conductors...

"Will work for (the memory of) salami"

 

[dpc]

I can hear it now - "I cut off the strands so they wouldn't get damaged."

There is also 110.12 - "Electrical Equipment shall be installed in a neat and workmanlike manner."

Our specs generally reference NECA standards as well.

 

[woodseng]

Thank you all. Same page (I rejected install).