[Hallb-engineering] R2S1 DCLV Blown fuse replaced, OK for now, but still draws 2 amps vs 1.2 amp normal
jacobsg at jlab.org
Tue Nov 10 16:57:43 EST 2009
R2S1 DCLV had a blown fuse. Current dropped from 22.78 to 20.72. I made
an access and replaced #13 (R2S1 STB 6.2) fuse. Current returned to near
the original value.
This is OK for now, but may blow again any moment. The original fuse was
a 3.15 amp size, replaced with the same. Typical current on one of these
fuses is ~1.2 amps, so this one is drawing ~70% more than normal, so
it's reasonable to expect it to blow again.
If it blows again, it should be considered a new permanent hole. This
can be repaired in January during the opening when the CLAS is split.
12000 Jefferson Ave.
Newport News, VA 23606
(email) jacobsg at jlab.org
More information about the Hallb-engineering