sphenix-magnet-l AT lists.bnl.gov

Subject: sPHENIX discussion of the superconducting solenoid

List archive

[Sphenix-magnet-l] Carl checked out all the connected voltage taps good

From: "Yip, Kin" <kinyip AT bnl.gov>
To: "sphenix-magnet-l AT lists.bnl.gov" <sphenix-magnet-l AT lists.bnl.gov>
Subject: [Sphenix-magnet-l] Carl checked out all the connected voltage taps good
Date: Tue, 26 Jul 2022 17:19:55 +0000

Hi,

Just before 12:25 pm, behind me, Carl and his tech came down the ladders of the upper platform after Carl finally checked out/tested the remaining voltage taps (accessible through the Valvebox) successfully.

For a few voltage taps from the Valvebox that Carl were not happy about yesterday, it turned out :

(1) One was just misidentification of whether it's connected or not (because most of them now was routed below the Doghouse instead of going up to the Valvebox).

(2) The other problem was the J10 connector (which Carl only used today to further verify, not yesterday) not as easily plugged or unplugged. So, bad/no connection made Carl think that something was opened.

At the end, all are good and we learn to be careful with all these J connectors. One can say that if we didn't waste/use the one day checking out the voltage taps, it'd be good anyway. But I guess this is the nature of "check and verify" 😁

The welders didn't come this morning (as they were busy somewhere else) so that we didn't need to negotiate or start World War III. It's said that the welders will come after 1 pm.

Kin

[Sphenix-magnet-l] Carl checked out all the connected voltage taps good, Yip, Kin, 07/26/2022