CHANCE C403-1029, Руководство по эксплуатации

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6
Underground Work Procedures
(ONLY MRVD MODEL T403-2271)
To test for voltage presence on deadfront equipment with loadbreak
elbows:
1.
Check meter, battery and circuitry for proper operation before and
after each use by depressing test button at back of meter housing while
switching selection to each setting in sequence. Set at every position
except "Off", meter should read nearly full scale. When reading falls three
or four divisions below full scale, replace battery by removing plastic cap
on end of mountain stick. Use a 9-volt battery.
2. Thread bushing adapter into mounting-stick end fitting and attach
MRVD to insulated hot stick of proper length for system voltage involved.
Also set selector switch at correct voltage range.
3.
Secure a temporary feed-thru device in parking stand on the deadfront
transformer or switch. Pull elbow with appropriate hot line tool and install
elbow on feed-thru device.
4.
Test on a known source before and after taking a reading to verify
proper operation.
5. To test both sides of interrupted circuit, insert bushing adapter into:
a. Apparatus bushing
b. Feed-thru bushing, to check elbow/cable.