Today, we looked for ground loops on ISI-BSC8. We found 3 ones (H2:SEI_BSC8_GS13-2, H2:SEI_BSC8_GS13-3, H2:SEI_BSC8_CPS-2 cables).

The connector of H2:SEI_BSC8_CPS-2 at the interface chassis was opened to fix the grounded back shell.

The ground loops on BSC-ISI GS13 cables are probably created by the relief screws that attach the connectors of the in-vacuum cable to the feedthroughs. The problem seems very similar to the one observed on BSC6 last Friday (but this time, the screws are not tight at the feedthroughs but there are at the pods). Tomorrow morning, the screws will be tightened down. Hopefully, it will solve the problem.