FIELD INSTALLATION CHECK LIST
Mfg.
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Location
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Voltage Class
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Main Bus Current Rating
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Total Breakers and Types
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Total
Relays and Types |
VISUAL INSPECTION
Yes
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No
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1. General inspection of exterior of equipment.
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2. Check panel lights for operation, burned out or missing bulbs LED’s and covers.
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3. Inspect for damaged, bent, or twisted doors and verify ground bonding.
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4. Inspect for broken instrument, relay cover glass and damaged phase indicator lights.
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5. Inspect bus for physical damage, missing insulation, connections at joints, confirm plating is acceptable.
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6. Check cleanliness of interior of cubicle
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7. Inspect insulation, stand-off insulators, and bus separators for damage or clearance problems.
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8. Inspect for proper compartmentalization as required.
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MECHANICAL SWITCHGEAR INSPECTION
Yes
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No
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1. Check control knobs and switches for freedom of movement and contact condition.
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2. Inspect door handles, locking bars, and mechanism.
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3. Check door interlocks for positive operation.
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4. Torque test bolted bus. (Exposed Connections only.)
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5. Check bus for support & spacing. Remove all shipping bracing.
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6. Remove draw out breakers. Check draw out mechanism for freedom of movement.
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Yes
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No
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7. Check rails, guides, rollers, and shutter mechanism.
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8. Lubricate draw out assembly parts as required.
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9. Inspect breaker and cell primary and secondary contacts and alignment.
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10. Close and trip breakers manually in the connected, test and disconnected positions.
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11. When applicable, check metering transformers compartments for proper operation of racking in/out, isolation features. Check for proper grounding of fuses in the withdrawn position.
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12. Verify that all breakers of the same rating are inter-changeable by racking each breaker into each cell of the proper rating.
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ELECTRICAL SWITCHGEAR INSPECTION
Yes
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No
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1. Inspect for proper grounding of equipment and neutral bus.
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2. Measure insulation resistance to ground.
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3. Inspect and megger power cable or bus to switchgear.
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4. Clean bus insulators, Megger test for grounds.
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5. Dielectric test cables/terminations and bus work as specified.
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6. Inspect and test control and metering transformers and fuses as required.
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7. Verify operation of resistors, grid assemblies (if applicable) and space heaters.
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8. Verify the condition of wiring & terminal connections (point to point wire check).
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9. Note and report any unmarked circuits.
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10. Verify proper operation of cell interlocks and auxiliary contact assemblies.
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11. Perform breaker inspection and tests as specified.
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12. Inspect and test meters, transducers, and relays as specified.
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13. Perform relay calibration and settings.
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14. Check relays and protective devices for positive tripping of circuit breaker.
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15. Test annunciator, alarm and/or target operation.
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16. Verify proper phasing of bus.
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17. Verify all control fuse types and ratings.
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18. Verify control circuits operate according to engineering specifications.
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