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Installation, maintenance, repair, and decommissioning instructions
Checks to electrical devices
Repair and maintenance to electrical components shall include initial safety
checks and component inspection procedures. If a fault exists that could
compromise safety, no electrical supply shall be connected to the circuit until it is
satisfactorily addressed. If the fault cannot be corrected immediately but it is
necessary to continue operation, an adequate temporary solution shall be used.
This shall be reported to the owner of the equipment, so all parties are informed.
Initial safety checks shall include:
a) Ensuring capacitors are discharged: this shall be done in a safe manner to avoid
possibility of sparking;
b) Ensuring no live electrical components and wiring are exposed while charging,
recovering or purging the system;
c) Ensuring there is continuity of earth bonding.
Repairs to sealed components
1. During repairs to sealed components, all electrical supplies
shall be disconnected from the equipment being worked upon prior to any
removal of sealed covers, etc. If it is absolutely necessary to have an electrical
supply to equipment during servicing, then a permanently operating form of
leak detection shall be located at the most critical point to warn of a potentially
hazardous situation.
2. Particular attention shall be paid to the following to ensure that by working on
electrical components, the casing is not altered in such a way that the level of
protection is affected. This shall include damage to cables, excessive number of
connections, terminals not made to original specification, damage to seals,
incorrect fitting of glands, etc. Ensure that the apparatus is mounted securely.
Ensure that seals or sealing materials have not degraded to the point that they
no longer prevent the ingress of flammable atmospheres. Replacement parts
shall be in accordance with the manufacturer's specifications.
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