I will normally toss out the manufacture provided set screw connectors and replace them with compression connectors on equipment of that size. We always use a dieless hydraulic crimper so there is no problem with the wrong die or incorrect pressure. For that many terminations I would be using the cordless hydraulic crimper in place of the hand pumped one. Don
Odds are that the manufacturer makes lugs for the purpose. I've seen 6 and 8 hole lugs like that, and four hole are pretty common. If you dig through the SqD catolog I'll bet you find them. Properly torqued they are just as good a connection IMO.
If you crimped them all - what would you be doing for all the connections to the busswork? Does it have bolt patterns for that? Dont 500MCM crimps have 2-bolts per?
Mark Heller "Well - I oughta....." -Jackie Gleason
#162211 - 04/14/0704:42 PMRe: Crimp vs. Setscrew - 500 MCM CU
Mark, Crimps are made in either single or two hole type. Many of the larger mechanical lugs are two hole with the same pattern as the crimps.
Properly torqued they are just as good a connection IMO.
In my opinion a properly installed mechanical lug is never as good as a properly installed compression lug. Both will do the job, however I believe that the compression are better. The contact pressure on the mechanical lug is not as high and the quality of the installation is more dependent upon the skill of the installer as compared to installing a compression lug with a dieless hydraulic crimp tool. If you cut through the connector and the wire on a compression termination that was installed with a hydraulic crimp tool, it is hard to tell that the wire was stranded. I guess maybe my preference comes from working mostly on industrial projects when crimp connections are often part of the job specifications.