1 run in a two hole lug 2

[tulum]

Just a quick questions... as a rule we purchase the right lugs for the cable (i.e 1 run of cable per phase gets a single lug, 2 runs gets a double, etc).

In the case of some of the 400A disconnects we purchased we received two hole mechanical lugs however, we installed 1 run of cable per phase... the switches are installed and the cable is run...

It is a nightmare to change all the lugs... if the cable is within the range of one hole of the two hole lug is it acceptable to use the one hole only?

Regards,
TULUM

 

[davidbeach]

If a two hole lug only need one hole wouldn't it come with just one hole?

 

[rovineye]

I don't think tulum is taking about the mounting holes, but the barrel holes of the mechanical compression (vice crimp) lug.

Sure. Either you are not using the lug or disconnect to its capacity, or they anticipated possibilty of additional cable to correct voltage drop.

Either way your lug, load and cable will be perfectly happy.

 

[davidbeach]

A two hole lug and a two barrel lug are rather different things. Using only one barrel of a two barrel lug shouldn't be a problem.

 

[asco1]

This is a common situation on breaker & switches.
Torque & loctite or completly remove the unused set screw.

 

[tulum]

Thanks for the help folks.... pardon my langauage... two barrel is what I meant..

Regards,
TULUM