We have update the guide to assist electricians and renewable contractors with a practical understanding of Solar PV systems including design, selection, installation and commissioning of solar photovoltaic (PV) systems.

The guide provides practical guidance of maintenance and fault finding of Solar PV systems, using a simple approach to finding the faults that may occur and how to rectify them.

Provides practical solutions for a number of installation types allowing electrical contractors to understand what is required by BS 7671, The Wiring Regulations. Fully updated to 18th Edition Wiring Regulations, BS 7671:2018+A24:2026.

NAPIT Guide to Initial Verification and Periodic Inspection and Testing, is ideal for anyone taking an inspection and testing qualification; it explains the different test equipment, what they're used for, and how to carry out all of the required BS 7671:2018+A4:2026 tests. 

Fully updated to 18th Edition Wiring Regulations, BS 7671:2018+A24:2026.

For 18th Edition training courses, visit: NAPIT Training