B2 en 8PQ9801-8AA61
Item
No.
Work to be performed Notes / Criteria Yes No Remarks / Result
2.3 Isolation
- Signs of electrical flashovers or creepage tracks
2.4 Cable and wires
- Cable routing, wiring
- Compliance with the bend radiuses
- Function of the strain relief
- Condition of insulation and labeling
2.5 Equipment
- Damage on installed equipment
- Signs of flashovers
- Signs of overheating
2.6 Electrical connections and
screw connections
- Locking varnish on screw connections is present and intact
- Local discoloration due to overheating
- Condition of the insulation in the area of the connections
3 Maintenance
Switch off and lock out all power supplying the concerned part of the low-voltage switchboard before starting the maintenance.
3.1 Extended visual
inspection
- Remove barriers and perform the visual inspection according to 2
- Visual inspection of parts of the switchboard that are difficult to access
- Mount all removed barriers correctly after inspection.
3.2 Cleaning
- The switchboard must be cleaned of dust inside and outside with a vacuum cleaner and
brush.
- Remove foreign bodies
- Cleaning of the ventilation slots, fans, ventilation grilles and replace the filter, if necessary
3.3 Electrical connections and
screw connections
- Tighten non-maintenance-free screw connections with inspection torque
See Section 2.4.2 "Electrical connections and screw connections” and
operating instructions 8PQ9801-8AA58 Electrical connections
3.4 Checking and See Section 1 Commissioning
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