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Operating
Temperatures
Q. Dan, I have a question hope
you can help me out with. This year I
had a 4hr load bank test done on 3 of
our gen sets that didn’t meet the 30%
load criteria. Our 2 other gen sets that
do meet the 30% load we ran for 4hrs.
This was to meet the new standard to run
generators for 4hrs every 3yrs. We had a
“mock JCAHO survey” recently done by
some consultants. In looking at our
generator log books they said we failed
this 4hr test and will need to retest
because we did not run for 4hrs under
operating temperature, the test should
have been for 4hrs 10 minutes. We do
have engine heaters that keep the
coolant @ 125-130 so I feel that we were
in operating temp and should not have to
retest as it expensive to do so. Please
let me know what your thoughts are. D.E.
A. Based on what you have stated, the consultants are incorrect.
The Joint has added only one exception
to NFPA 110, 8.4.9 and that was for the
test to be conducted under a load of at
least 30% of nameplate. (BTW, the “at temperature”
phrase in NFPA 110, 8.4.2 applies to the coolant
temp with the engine running…not the blockheater setting.) Let me know if you
need any additional back up. |
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Published By:
Diesel Exhaust Systems
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