Tape for split bolt connector

Status
Not open for further replies.
T

tgammon

Member
Hi,

Does the NEC or some other code specify the correct way for split bolt connectors (for LV applications) to be installed? Should tape be used? What kind?

I have heard that duct tape should not be used.

I have also heard from other sources that no tape should be used.

Thanks,
Tammy Gammon
 
Tammy,
The NEC does not specify the exact method of insulating splices. In my experience most split bolts are taped. Most of the time with rubber followed by plastic tape. Many installers will use varnished cambric tape over the split bolt before using the rubber to make removal easier. Duct tape is not an insulating tape and is not suitable for the purpose.
110.14(B) ... All splices and joints and the free ends of conductors shall be covered with an insulation equivalent to that of the conductors or with an insulating device identified for the purpose.
Click to expand...
Don
 
split-bolts

split-bolts

agree on the polaris, but if you do go split bolts, the varnished cambrick tape applied 1st is a wise investment. Not only does it provide tough physical covering, if you ever do need to remove the tape, the vc allows it to be peeled like a bannana. I've seen a few "instructions" with splits bolts...as I recall they required VC, rubber, then vinly.
 
Polaris connectors

Polaris connectors

I agree. I have been using the polaris connectors in the mobile park, we been upgrading the sevices. They are easy to use. I have cambrick tape also. When I worked maintence, on big spit-bolts we would put cambrick tape, duct seal, rubber tape, then super 88.
 
Splicers

Splicers

NSI Industries, makes some pretty durable insulated splicers from 14 gauge wire and up, they come with a conductive compound built in to protect the connections. I still wouldn't recommend any spice be earth buried for future service to it.
 
If I must use a split bolt, I like to use the plastic clamshell covers that clip over top of them. They're a bit bulky, but quick and cheap. I generally put a wrap of tape over the clamshell just so that it doesn't ever accidentally pop open on somebody in the future when it's manipulated.
 
If you find yourself without cambrick you can "backwrap" super 88 or regular (cheap) electrical tape before rubber tape. This does about the same thing.
 
I agree with RU. The insulated splice devices can even be installed hot, which greatly simplifies their use.
 
mdshunk said:
If I must use a split bolt, I like to use the plastic clamshell covers that clip over top of them. They're a bit bulky, but quick and cheap. I generally put a wrap of tape over the clamshell just so that it doesn't ever accidentally pop open on somebody in the future when it's manipulated.
Click to expand...


We use them too. Around here we call them "pocketbooks".
 
Status
Not open for further replies.
Top