Here's what we do to meet the Shedule of Inspection

• Visual Inspection
• Continuity
• Polarity
• Earth Loop Impedance
• Insulation Resistance
• Operation of Devices for I and S
• Residual Current Devices

Insulation Resistance.

Insulation resistance tests should be made on a dead circuit and any electronic equipment which might be damaged by application of the test voltage must be disconnected or isolated.

The insulation resistance should be measured between each live connector and earth and should not be less than 0.5 megohm. Where practicable the test applied to the whole of the installation with all fuse links in place and all switches closed. Alternatively the installation may be tested in parts.