Testing of Electrical Installation
Before any testing of low voltage electrical installations (and equipment) is carried out, a detailed physical inspection must be made to ensure that everything is:
1. To a relevant National or Harmonized European Standard
2. Erected/installed in compliance with the IEE Regulations
3. Not damaged in such a way that it could cause danger
General Testing Checklist
1.Connections of Conductors
Are terminations electrically and mechanically sound ? Is installation and sheathing removed only to a minimum to allow satisfactory termination ?
2.Identification of Conductors
Are conductors correctly identified in accordance with the regulations?
3.Routing of Cables
Are cables installed such that account is taken of external influences, such as mechanical damage, corrosion and heat?
4.Conductor Selection
Are conductors selected for current carrying capacity and voltage drop in accordance with the design?
5.Connection of single pole device
Are single pole protective and switching devices connected in the line conductor only?
6.Accessories and equipment
Are all accessories and items of equipment correctly connected?
7.Thermal effects
Are fire barriers present where required and protection against thermal effects provided ?
8. Protection against shock
What methods have been used to provide protection against electrical shock ?
9.Mutual detrimental influence
Are wiring systems installed so that they can have no harmful effect on non-electrical system or so that system of different currents or voltages are segregated where necessary ?