contractor to perform the survey should be
considered prior to specifying the requirement.
**************************************************************************
3.5.1.1
Interrupter Switch(es)
a.
Visual and Mechanical Inspection
1.
Compare equipment nameplate data with specifications and approved
shop drawings.
2.
Inspect physical and mechanical condition.
3.
Confirm correct application of manufacturer's recommended
4.
Verify appropriate anchorage and required area clearances.
5.
Verify appropriate equipment grounding.
6.
Verify correct blade alignment, blade penetration, travel stops,
and mechanical operation.
[7.
Verify that fuse sizes and types correspond to approved shop
drawings.]
[8.
Verify that each fuse holder has adequate mechanical support.]
9.
Verify tightness of accessible bolted electrical connections by
calibrated torque-wrench method. Thermographic surveying[ is
not][ is]required.
10. Test interlocking systems for correct operation and sequencing.
11. Verify correct phase barrier materials and installation.
12. Compare switch blade clearances with industry standards.
13. Inspect all indicating devices for correct operation
b.
Electrical Tests
1.
Perform insulation-resistance tests.
2.
Perform over-potential tests.
3.
Measure contact-resistance across each switch blade[ and fuse
holder].
[4.
Measure fuse resistance.]
5.
Verify heater operation.
3.5.1.2
Medium-Voltage Circuit Breakers (Vacuum)
a.
Visual and mechanical inspection
1.
Compare equipment nameplate data with specifications and approved
shop drawings.
SECTION 16361N
Page 42
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