Siemens ALPHA 3200 Eco Handbuch Seite 126

Item Work to be performed Notes / Criteria
No.
2.3 Isolation
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2.4 Cable and wires
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2.5 Equipment
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2.6 Electrical connections and
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screw connections
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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
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inspection
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3.2 Cleaning
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3.3 Electrical connections and
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screw connections
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
B2 en
Signs of electrical flashovers or creepage tracks
Cable routing, wiring
Compliance with the bend radiuses
Function of the strain relief
Condition of insulation and labeling
Damage on installed equipment
Signs of flashovers
Signs of overheating
Locking varnish on screw connections is present and intact
Local discoloration due to overheating
Condition of the insulation in the area of the connections
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.
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
Tighten non-maintenance-free screw connections with inspection torque
Yes No Remarks / Result
8PQ9801-8AA61