Tes T esti ting ng an and d com commis missi sioni oning ng
8
chapter
Unit 2 outcome 2 It is important that electricians are not just able to construct; they should also be able to recognise faults and take action to help prevent them. As such, using the correct means to test and inspect material is vital. Not all faults
NVQ3 Electrical Installations
Chapter 8 Testing and commissioning
Rigid metal conduits (tick if satisfactory)
Metal trunking (tick if satisfactory)
Complies to the appropriate British standard
Line and neutral cables contained in the same metal trunking
Connected to the main earth terminal
Protected against damp corrosion
Line and neutral cables contained within the same conduit
Earthed
Conduits suitable for damp and corrosive situations
Joints mechanically sound, and of adequate earth continuity with links �tted
Maximum span between buildings without intermediate support
Circuit protective conductors (enter circuit details from speci�cations)
Rigid non-metallic conduits (tick if satisfactory)
1. ……………………………………………………………………………………
Complies with the appropriate British Standard
2. ……………………………………………………………………………………
Ambient and working temperature within permitted limits
3. ……………………………………………………………………………………
Provision for expansion and contraction
4. ……………………………………………………………………………………
Boxes and �xings suitable for mass of luminaire suspended at expected temperatures
5. ……………………………………………………………………………………
Flexible metal conduit (tick if satisfactory)
6. ……………………………………………………………………………………
Complies with the appropriate British Standard
7. ……………………………………………………………………………………
Separate protective conductor provided
Table 8.03 Inspection checklists
Adequately supported and terminated
Did you know?
Trunking (tick if satisfactory) Complies to the appropriate British Standard
Where an item is not relevant to a speci�c installation, N/A should be placed in the tick box
Securely �xed and adequately protected against mechanical damage Selected, erected and rooted so that no damage is caused by ingress of water Proximity to non-electrical services Internal sealing provided where necessary Hole surrounding trunking made good Band 1 circuits partitioned from band 2 circuits, or insulated for the highest voltage present Circuits partitioned from band one circuits, or wired in mineral-insulated and sheathed cable Common outlets for band 1 and band 2 circuits provided with screens, barriers or partitions Cables supported for vertical runs (continued over)
