NAPIT On-Site Solutions A4:2026 BS 7671
Practical, on-site guidance for applying BS 7671 with confidence across everyday electrical installation work.
The NAPIT On-Site Solutions Guide is a practical technical reference for electrical contractors who need clear, reliable guidance on the application of BS 7671 – the 18th Edition Wiring Regulations.
Designed to support electricians on site, this comprehensive publication brings together industry best practice, regulatory requirements and practical solutions in one easy-to-use guide.
Covering Parts 1 to 7 of BS 7671, the guide addresses a wide range of everyday installation considerations, from circuit design and equipment selection through to safe isolation, inspection, testing, certification and documentation.
Whether you are designing a new circuit, installing EV charging equipment, selecting protective devices or completing inspection and testing, the NAPIT On-Site Solutions Guide provides a focused reference for tackling common installation challenges while supporting safe and compliant electrical work.
What the On-Site Solutions Guide Covers
- Electric vehicle (EV) charging installations
- Surge protective devices (SPDs)
- Smart home and connected technology installations
- Outbuildings and external supplies
- RCD selection and coordination
- Consumer unit selection and considerations
- Selection and erection of equipment
- Designing electrical circuits
- Safe isolation of electrical supplies
- Inspection, testing and certification
- Electrical installation documentation
Why Electrical Contractors Use This Guide
- Supports compliance with the 18th Edition Wiring Regulations
- Provides practical on-site solutions to common electrical installation challenges
- Helps reduce errors in design, selection and certification
- Covers Parts 1 to 7 of BS 7671
- Brings together regulatory requirements, best practice and practical guidance in one reference
- Suitable for domestic, commercial and small industrial installations
- Designed to provide electricians and contractors with convenient guidance while working on site
Who is the NAPIT On-Site Solutions Guide For?
The NAPIT On-Site Solutions Guide is designed for electrical contractors and electricians who need practical guidance when applying BS 7671 to real-world installation work.
It is suitable for those working across domestic, commercial and small industrial installations and covers a broad range of activities including design, equipment selection, installation, isolation, inspection, testing, certification and documentation.
Practical Solutions for Everyday Electrical Work
Electrical installation work can involve a wide range of decisions, from choosing the right protective equipment to designing circuits and completing certification correctly. The NAPIT On-Site Solutions Guide brings these areas together in one practical reference.
With guidance covering subjects including EV charging, SPDs, RCDs, consumer units, smart technology, external supplies, safe isolation and inspection and testing, it provides contractors with a useful source of information for day-to-day installation challenges.
Product Details
| Features | |
| Product | NAPIT On-Site Solutions Guide |
| Standard | BS 7671 – 18th Edition Wiring Regulations |
| Coverage | Parts 1 to 7 of BS 7671 |
| Applications | Domestic, commercial and small industrial installations |
| Part Number | PNAPOSS184 |