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Technical Bulletins

We regularly publish short & quick reference documents, keeping engineers and installers up to date on issues that impact their businesses on a daily basis.

Technical Bulletins are designed to offer good advice on specific technical questions received through our technical  helpline or via our network of branch and regional meetings.

BS 7671:2018+A2:2022  
Reporting of Possible Neutral Current Diversion Dec-23
Installing Surge Protective Devices retrospectively Nov-22
Additional requirements for outside lighting Jun-22
Verbal forms for expression of provisions Jun-22
Table 3A has been removed from BS 7671:2018+A2:2022 May-22
Clarifications made to the requirements for RCD testing Apr-22
Protection Against Overvoltage Apr-22
Precautions where particular risks of fire exist Apr-22
Installing and additional earth electrode in TN earthing systems Apr-22
Bonding of Outbuildings Apr-22
Date of Inception for BS 7671:2018+A2:2022 Apr-22
The use of BS 7288-type socket-RCDs and Regulations 531.3.4.1 and 531.3.4.2 Apr-22
Arc Fault Detection Devices (AFDDs) Apr-22
HMO, care homes and purpose-built student accommodation definition Apr-22
Functional Earthing Apr-22
Installing an additional earth electrode in TN earthing system Apr-22
BS 7671:2018 
Bonding of commercial kitchens Feb-24
Correct selection of telecommunications cabling Apr-23
Installing domestic AC voltage optimisers Jan-23
Continuing professional development and requirements for ECA Members Dec-22
Naming conventions for electrical installations  Apr-22
Increased awareness of manufacture instructions and recommendations Feb-22
Use of consumers electrical cabinet for additional equipment Oct-21
Halogen and fluorescent lamp sale ban Aug-21
Domestic consumer units not supplied by BS 88-3 fuses May-21
EICR observation writing April-21
Electrical Safety in the private rented sector May-20
BIM Feb-20
BS 7671: 2018 Amendment 1 Feb-20
LED lights and circuit breaker selection Jan-20
Technical Bulletin - Working in the Republic of Ireland Jun-19

AFDD and Sleeping Accomodation

Explanation of definitions related to sleeping accommodation.

Jun-19

Responsibilities for Passive Fire Stopping of Building Services Structural Openings

This bulletin reminds members of the vital importance of establishing contractual responsibilities for passive fire stopping around building services installations.

 
Use of YY CY SY Cables  
Supplementary equipotential bonding  

Voltage Drop

Voltage drop in electrical designs and the requirements within BS 7671

 

IP Rating of Trunking

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.

 
Departures from BS 7671 Aug-18
Cable Supports Aug-18
RCDs and Socket Outlets Aug-18
Selectivity & Desk Studies Aug-18

Wiring Accessory Replacement

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.​

Feb-17

Joining Dissimilar Metals

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.

Feb-17

Electrical Installations After a Flood or Fire

Floods and fires of any magnitude can have detrimental effects on any electrical nstallation. This bulletin provides property professionals with clear advice on recognising these potential dangers.

Jan-17
Containment Methods for Fire Alarm Cabling Aug-20

BS 5939-6: 2019

April 2019 saw an update to the Standard for domestic fire detection and fire alarm systems.

Apr-19
Correct selection of telecommunications cabling Apr-24
Power over Ethernet (PoE): 2019 Sep-19
Internet of Things Security: 2019 Jun-19

CPR – IT and Telecommunication Cables

This Technical Bulletin is a useful tool for you and your client to explain what is expected in the publication of and its commercial impact regarding the Construction Product Regulations.

Jan-17

 Alternatives to SF6 in Switchgear                                                                    

Jan-24