wet test, wet the insulating portion of the boom thoroughly, using drug store grade
distilled water applied with a spray applicator. Retest the upper insulating system as
in
distilled water applied with a spray applicator. Retest the upper insulating system as
in
not exceed 100 times the dry leakage current, and should not exceed 1 milliampere
at rated test voltage.
at rated test voltage.
B3.3. Records of all inspections, tests, and corrective maintenance on vehicle
mounted insulated aerial lift equipment shall be maintained in the responsible
operating office.
mounted insulated aerial lift equipment shall be maintained in the responsible
operating office.
Table B1
MANUFACTURER'S CERTIFICATION TEST
60-Hz Rated
60-Hz Double-Rated
60-Hz
Switching
Rated
Voltage Test
Voltage Test
Momentary Surge
Permanent
Line
Test
Boom
Test
Boom
Withstand
Withstand Electrodes
Voltage
Voltage
Current
Voltage
Current
Voltage
Voltage
Required
rms kV
rms kV
rms
F
A rms kV
rms
F
A
rms kV
crest kV
69
40
40
80
80
120
170
YES
115-138
80
80
160
160
240
340
YES
230
133
133
265
265
400
340
YES
345
200
200
400
400
600
850
YES
500
288
288
575
575
720
1020
YES
765
442
442
885
885
1105
1560
YES
Test voltages specified for the momentary or switching surge test are based upon a
3 per unit switching surge factor through 345-kV ratings, 2.5 per unit switching surge
factor for 500-kV rating, and 2.2 per unit switching surge factor for 765-kV rating.
When run, the switching surge factor will consist of 10 applications at both positive
and negative polarity switching surge test waves, with the test waves having a front
between 150 and 350/
3 per unit switching surge factor through 345-kV ratings, 2.5 per unit switching surge
factor for 500-kV rating, and 2.2 per unit switching surge factor for 765-kV rating.
When run, the switching surge factor will consist of 10 applications at both positive
and negative polarity switching surge test waves, with the test waves having a front
between 150 and 350/
F
s.
B-5 (FIST 3 - 29 5/90)