hypercharger - Operation Instructions and Installation Guide
Version 1-1C
Page 48 of 57
8
Maintenance
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8. Maintenance
Attention
Attention
Observe all hazard warnings in chapter 1.3
8.1. Overview of maintenance work
For the safe operation of the charging station, regular maintenance or control of the safety
equipment is required. All the points listed below are considered mandatory and must be
carried out by the operator of the switchgear at the intervals described.
Table 16 gives an overview of the intended maintenance work. Depending on the
individual conditions of use of the control cabinet, maintenance work may still be
necessary so that the list cannot be considered complete.
Maintenance work
Execution
Interval
Charging cable set
Replacement of the complete charging cable set
After 10000
charging
cycles
Residual current devices
Function test of residual current circuit breaker
Every 6
months
Main switch, voltage
release switch
Verify the correct function
Yearly
Verification of protective
measures
With the charging station switched off, check the
resistance between the ground of the supply plug
and all externally accessible, non-insulated cabinet
parts (housing, add-on parts, screws)
Yearly
Check for cleanliness and
condensation
Check if the interior of the control cabinet is clean
and has no traces of condensation.
Yearly
Screw
Random or complete testing of tightening torques at
terminals and mechanical screw connections.
Yearly
Overvoltage protection
Check the surge arrester for full function
Yearly
Ventilation filters
Changing the filter mats
Yearly
Level of cooling liquid
Check the cooling liquid level (fill level indicator)
Yearly
Concentration of cooling
liquid
Check the concentration (test with refractometer) of
the coolant liquid.
If the concentration is outside the required range, this
can be remedied by adding coolant concentrate
(concentration too low) or distilled water
(concentration too high).
Yearly
pH of cooling liquid
Check the pH (optimal value -
pH between 8…9) of
the coolant liquid.
If the pH is below pH 7.7, replace the coolant liquid.
In this case, no complete replacement is necessary,
the change of the majority is sufficient to ensure
protection again.
Yearly
Table 16:
Periodic maintenance work
