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Welcome to the Technical area of the ECA Website, where members can benefit from unrivalled technical support across a wide range of electrotechnical activities. Click on the buttons below to access more on subject topics of interest.
Authoritative guidance on subject matters for the electrotechnical industry
Certify your work with our free editable pdf certificates.
You've got a Question? We've got the Answer! Check out our technical FAQs.
The purpose of a Guidance Note is to offer a concise guide to a specific area of technical interest.
Short & quick reference documents, keeping Engineers and Installers up to date on issues that impact their businesses on a daily basis.
Engineering advice from a practical point of view.
Over 2000 Members are supported annually with technical advice.
Clarifying & resolving technical issues, plus advice on good and best practice.
Save your business thousands of pounds!
The ECA BSI Online Library features over 80 electrical and electronic installation British Standards.
Hard copies of British Standards can cost up to thousands of pounds each to purchase.
The Online Library Licence prices for a yearly subscription is £100 (+ VAT).
Part of your ECA Member benefits.
This technical bulletin addresses the questions about wiring accessory replacement and provides best practice guidance which can be applied to both commercial and domestic locations.
This Guidance Note highlights TT earthing system requirements, dispels any myths and gives some clear guidance to both contractors and clients.
Best practice advice based on one of the most frequent technical enquiries.
This technical bulletin is designed to offer advice and guidance when working on and with electrical equipment of dissimilar metals that are to be connected, or joined together.
Many contractors, engineers and consultants find this topic to be confusing. The answer will depend on what the tray / ladder is used for.
This certificate is to be used to formally record where equipment / circuit(s) have been isolated, proven dead, and suitable steps taken to prevent inadvertent re-energisation.
Floods and fires of any magnitude can have detrimental effects on any electrical installation. This bulletin provides property professionals with clear advice on recognising these potential dangers.
This guide is designed to help contractors understand the options for using a steel armouring as a protective conductor.
The following application guide is designed to give readers additional information about electric heating systems in relation to the design and build of different projects. This guide is intended to offer practical guidance to all, although due to the nature of the subject must make reference to other guidance documents and standards.
Produced for SMEs wanting to know the bare essential requirements to work on BIM projects
This is a BS 7671 certificate, that can only be used for installation work, that does not include the provision of a new circuit.
It should be noted that the ECA certificate offers the convenience of being to record details of up to three such modified circuits.
with Member business logo
BS7671: 2008, AMD 3 2015 revised regulation 411.3.3 now requires all socket outlet circuits not exceeding 20A to incorporate additional protection by 30mA RCD, however an exception is permitted provided a documented risk assessment is produced, justifying why RCDs are to be omitted.
This certificate is only valid when accompanied with signed declarations of design (H.2), installation (H.3) and verification (H.4) certificates.
(up to 25 self contained luminaries)
This certificate is only valid when accompanied with a signed declaration of conformity certificate (I.2)
(up to 25 self contained luminaires) – Declaration of conformity
This certificate would be used typically for the one off verification/inspection of an existing emergency lighting installation and is valid only when accompanied by a signed checklist and report (K2)
This certificate would be used for the regular inspections and testing of an emergency lighting installation – typically as part of a maintenance activity or contract. The certificate would normally be accompanied by the Periodic Inspection &Test Record (M2) and if applicable, the Fault Action Record (M3)
This document will help ECA member firms to navigate through the maze of BIM terminology and acronyms and work out what BIM means.
Designed to help members identify the necessary steps to ensure they are prepared for BIM.
This application guidance seeks to clarify the correct requirements for industrial / commercial HV/LV substation earthing.
The objective of this guidance is to set out the background to European Voltage Harmonisation. The past and current situation within the UK & Europe; how this affects the selection of electrical plant and equipment and; how voltage drop criteria might be best applied.
The trunking currently being used in electrical installations typically has an International Protection (IP) rating (otherwise known as Ingress Protection Rating) of IP3X where joints have been fabricated on site.
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.
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.
This application guidance is intended to provide readers with information regarding the design, selection and installation of LV switchgear and protective devices and to offer practical guidance to all, though due to the nature of the subject must make reference to other guidance documents and standards.
Equipment formal visual and cembined inspection and test record
This guidance provides information relating to the design, selection and erection of cabling in the LV category as defined by, as amended, Requirements for Electrical installations, IET Wiring Regulations 17th Edition.
One of the most fundamental issues concerning building safety is that of fire and fire spread, and indeed it was this topic that has paved the way for a significant part of today’s Building Regulations.
Arc Flash Risk Assessment and Arc Flash Protection, are topics of North-American (USA) origin and concern the assessment and mitigation of Arc Flash Hazard(s) to personnel working on, or in reasonably close proximity to, energised electrical plant and equipment. The topic is very much coming to the fore in the UK via manufacturers and suppliers of PPE...
Model Certificate for Grades B, C, D, E and F
Grade C,D,E & F systems
26 Jul 2017
ECA members and selected associates can exclusively save thousands of pounds every year by accessing over 80 selected electrotechnical installation standards via the My ECA website.
03 May 2017
ECA members can save thousands of pounds by accessing British and European Standards via the ECA website. From there, you can subscribe to the BSI Online Library from just £100 per year.
The library features now over 80 electrical and electronic installation British Standards.
19 Apr 2017
Plans are underway to incorporate the forthcoming 18th Edition of the IET Wiring Regulations into the Electrotechnical Certification Scheme (ECS) in England, Wales and Northern Ireland, to allow ECS cardholders to demonstrate their continuing professional development.
Fire compartmentation is an important element of 'passive fire protection' and is achieved by dividing a premise into 'fire compartments' through the use of fire doors, floors and walls of fire-resisting construction, cavity barriers within roof voids and fire stopping to services that penetrate through these.