Inspection and maintenance
Technical changes reserved
107
System / operating
equipment
Test interval Type of test
Inspector
Enclosure, jacketing
and protective devices
1 year
Recommenda
tion
External visual inspection
Switching operation /
functional testing
Electrically skilled
person
(with testing
experience)
RCD (earth-leakage
circuit breaker)
Every six
months
Operate test switch
Ordinary person
8.2
Minimum inspection/maintenance measures
The minimum maintenance conditions for switchgear and controlgear assemblies
with FWU distribution enclosures are listed below (compliance based on
VDE 0100, part 610 for switchgear assemblies):
The recurring tests during commissioning, in the event of changes, after faults or
at suitable intervals include:
-
Inspections
-
Measurements
-
Testing
-
Documenting test results
-
Eliminating the identified defects, for example, by replacing the faulty
operating equipment or devices
-
Documenting the performed work and changes.
Tests through inspection
In the inspection, the electrically skilled person checks the electrical switchgear
for perfect working order, including its operating equipment and devices. The
inspection includes both the equipment exterior/environment and the internal
fittings.
-
Check the protection against the direct and indirect contact of active parts.
-
Check the basic protection and the basic insulation.
-
Check the additional insulation for fault protection.
-
Check all necessary covers for personal protection.
-
Check for signs of ageing.
-
Check for mechanical, chemical, electrical and thermal stress.
External inspections, tests
Test values, comments, remedy
Test the ambient conditions
-
Effectiveness of the ventilation system and
heating of operating space
-
Room temperature, relative humidity,
aggressive air components, dust
Accessibility, minimum distances
Escape routes, clearances
Visual inspection of covers and
jacketings
Damage that adversely affect the type of
protection, such as:
-
Missing parts
-
Locking of doors
-
Paintwork damage
