capt al ---
I am sorry. I was too brief. I only work on systems under 200amp and 240volt. (I would not have enough work at higher power or voltage to keep up the necessary skills.) When I say torque is not important, I mean not as important as some seem to believe. In particular not important enough to require a torque wrench on any connection I make.
In your photo you make the assumption that the initial torque was wrong. I did not do the work. So I will again not comment on the work or the cause of the problem.
While IR testing is better than torque verification, the requirement is torque not performance. I would accept an IR test.
I torque with my battery powered drill with an adjustible clutch. (I use the numbers for repeat settings.) For terminations 30amps and below I know what setting provides a good connection. For teminations 35amps to 200amps I do tests with scrap wire until I am happy with the appearance of the connection. (I check the appearance by disassembling the connection.)
For work over 200amps or 240volts I sub the work out.
