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Guidance Notes

To complement our larger Application Guides we compile Guidance Notes which offer concise guidance on specific areas of technical interest.

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EV charge-point Installers process of registration with OLEV

(PDF, 589 kB)

The purpose of this guidance is to signpost the process an installer must follow for The Office for Low Emission Vehicles (OLEV) accreditation and installation notification.

Published 26 Nov 2018Last reviewed 26 Nov 2018
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The Employer’s Legal Duties to maintain Safe Electrical Installations

(PDF, 1.6 MB)

This guide aims to help employers* understand their legal duties to ensure adequate inspection, testing and maintenance of electrical systems.

Published 30 Aug 2018Last reviewed 30 Aug 2018
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TT Earthing Systems - Guidance Note

(PDF, 695 kB)

This Guidance Note highlights TT earthing system requirements, dispels any myths and gives some clear guidance to both contractors and clients.

Published 23 Feb 2017
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Thermal Performance of Lighting Diffusers

(PDF, 508 kB)Download

High/Medium Voltage Installations

(PDF, 521 kB)Download

Using Armouring as a Protective Conductor

(PDF, 565 kB)

This guide is designed to help contractors understand the options for using a steel armouring as a protective conductor.

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Arc Fault Detection Devices

(PDF, 652 kB)Download

Main Changes of BS 7671:2018

(PDF, 376 kB)Download

Electrical Vehicle Charging

(PDF, 1 MB)Download

Risk assessment of SPDs BS 7671:2018

(PDF, 593 kB)Download

Guidance Note Earthing of Raised Access Floors

(PDF, 41 kB)Download

Guidance Note - Air Source Heat Pumps

(PDF, 373 kB)

Air Source Heat Pumps could provide all of home’s heating, significantly cutting your bills and reducing the amount of harmful carbon dioxide (CO2) released into the atmosphere.

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Guidance Note - Ground Source Heat Pumps

(PDF, 587 kB)

Ground source heat pumps are powered by electricity, but for every unit of electricity used, three to four units of heat are produced. This kind of system could provide all of your home’s heating, significantly cutting your bills – and reducing the amount of harmful carbon dioxide (CO2) you release into the atmosphere.

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