Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o.
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5. INSPECTION AND MAINTENANCE
5.1. Visual inspection
It is recommended to carry out visual inspections once a year and after each failure or short circuit in the
switchgear.
Check in particular:
a) condition of earthing terminal,
b) condition of coupling mechanisms,
c) condition of external parts (housing),
d) connection of wires with terminal strip, fixing of limit switches.
5.2. Spare parts and recommended maintenance materials
The use of high-quality components and operational experiences indicate the long service life of operating
mechanisms (about 40 years). In case of damage to the operating mechanism due to improper assembly or
operation, there is a possibility of paid repair by the manufacturer.
WHITE PHARMACEUTICAL PETROLEUM JELLY
(acid-free) used for lubrication of electric contacts (earthings,
contacts of HV switches);
PROTECTIVE LUBRICANT TDM,
in accordance with PN-64/C-96146 used for maintenance metal surfaces
(articulated shaft components and coupling mechanism).
5.3. Periodic inspections
Periodic and maintenance inspections should be carried out once every 5 years. During inspection and main-
tenance the using of energetic devices rules and health and safety at work rules have be respected to protect
carrying out the job maintenance personnel.
Check in particular:
• condition of the earthing terminal and earthing installation,
• condition of mechanisms, bearings and connection components,
• correctness of reaching limit positions,
• condition of auxiliary switches contacts,
• condition of anti-corrosion protective coatings,
• adhesion of the door cover’s sealing to the housing edge,
• heater unit.
