Safety Inspection
 DANGER |
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HAZARD OF ELECTRIC SHOCK, explosion and arc flash
Do a high voltage test to detect any equipment degradation.
Failure to follow these instructions will result in death or serious injury.
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The integrated EMC filter has Y capacitors.
The tripping current is exceeded when AC testing voltage is applied.
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Test the forced cooling fan with DC voltage while performing the legally required high-voltage test. The voltage to be used corresponds to the peak value of the AC voltage required by the standard.
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What to check |
How to check |
How often |
What action |
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Contact protection cover for intactness or damage |
Visual inspection |
At least every 6 months |
Repair or replace the forced cooling fan. |
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Forced cooling fan for damage to blades and housing |
Visual inspection |
At least every 6 months |
Replace the forced cooling fan. |
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Fastening the cables |
Visual inspection |
At least every 6 months |
Tighten the cables. |
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Fastening the earthing terminal |
Visual inspection |
At least every 6 months |
Tighten the earthing terminal. |
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Insulation of cables for damage |
Visual inspection |
At least every 6 months |
Replace the cables. |
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Impeller for wear/deposits/corrosion and damage |
Visual inspection |
At least every 6 months |
Clean the impeller or replace the forced cooling fan. |
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Abnormal bearing noise |
Acoustic |
At least every 6 months |
Replace the forced cooling fan. |