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
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

Police Operational Advice and Security Industry Requirements for Response	Apr-20

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

RCD Requirements for Electric Vehicle Supply Equipment	Feb-24
EV-Ultra^® EVCP cable	Feb-23
Installing domestic AC voltage optimisers	Jan-23
Funded training and MCS registration available	Jun-22
712 Solar Photovoltaic (PV) power supply systems	Apr-22
Changes to Domestic Low-Carbon Heating Funding	Mar-22
Changes to the OZEV Electric Vehicle Homecharge Scheme	Feb-22
Electric vehicle charging equipment	May-21
Update to EVHS process	Nov-20
Open Pen devices and solar PV	Oct-20
G99 technical bulletin 2019	Jun-19
Technical Bulletin - Smart Export Guarantee (SEG) Announcement UK Government publishes proposals for the Smart Export Guarantee (SEG)	Jun-19

Alternatives to SF6 in Switchgear

Jan-24