It is an irreversible compression crimp.ICE said:
I haven't tried but I think I can remove it without too much effort and without damage to the conductors. I contacted the manufacturer and they also describe it as irreversible. When I asked them by what criteria do they consider this crimp to be irreversible, they said that it would require the use of tools to remove it. The same applies to a split bolt. They then told me that the crimp is listed to UL standard 467. 467 is "Grounding and bonding equipment"Gregg Harris said:It is an irreversible compression crimp.
Newer product. It is UL listed under T/B 54720 is the part # UL document KDER.E3060ICE said:I haven't tried but I think I can remove it without too much effort and without damage to the conductors. I contacted the manufacturer and they also describe it as irreversible. When I asked them by what criteria do they consider this crimp to be irreversible, they said that it would require the use of tools to remove it. The same applies to a split bolt. They then told me that the crimp is listed to UL standard 467. 467 is "Grounding and bonding equipment"It isn't that I can't be wrong. I just haven't seen this used for a GEC splice in all the years that I have been doing this.
I called them on Friday. They provided the link to UL and proof that the crimp is listed to 467. When I started asking questions, I was put on hold for a senior engineer. After a few minutes I was told that the person that could answer my questions was on the road to a code making panel. They said that he would call me. He didn't. I will try again on Monday. And bring you the answers.jar546 said:1) I too question 3 conductors under 1 splice2) I question it's use on solid copper wire
That is what you need to ask the manufacturer.
54720 Thomas & Betts CU C-Tap, 4AWG, BROWN, 33Part #: 273X564 Model #: 54720
Thomas and Betts makes this 54720 compression C-Taps for permanent pig tailing, two-way splicing or tapping to an unbroken continuous main. Die color-coded brown, use this C-Tap on #4 AWG stranded main wire, and #12 AWG solid and stranded - #4 AWG stranded branch wire. Use with T&B lugs assures high conductivity, low resistance and high pullout values. Use the 272X128 BROWN 33 coded die with the 272X100 Insulated head manual hydraulic crimper to properly install this C-Tap.
Non-GSA Schedule