The founder of Swindon-based TECC Ltd is advising businesses and contractors across the electrical sector to prepare now for significant regulatory changes set to reshape installation standards across the UK from this month.
Pete McCallum, founder of The Electrical Compliance Collective Ltd (TECC), says the forthcoming update to the UK Wiring Regulations reflects advancements in technology and increasing demand for safer, more integrated electrical systems. The amendment (BS 7671 Amendment 4) introduces new requirements across key areas including energy storage, digital infrastructure, and healthcare.
“We ensure that we are trained and up to date with forthcoming changes so that our clients are confident that we know the regulations and that any work we do for them is compliant,” Pete said.
One of the most notable updates is the introduction of new rules for stationary secondary batteries, recognising the rapid growth of battery energy storage systems in both domestic and commercial settings. The new guidance includes stricter safety measures, including mitigating fire risks and restricting installation locations to avoid high-risk areas like lofts and escape routes.
“These changes mark a significant step forward in aligning regulations with how modern electrical systems are actually being used,” said Pete. “With technologies like battery storage becoming more widespread, it’s essential the industry understands not just how to install them, but how to do so safely.”
The update also introduces new regulations for ‘power over ethernet’ systems, reflecting the growing reliance on data cabling for lighting, security, and smart technologies in buildings and homes. These rules focus on correct cable selection, safe installation practices, and managing heat build-up.
Further changes include the recognition of functional earthing for ICT systems, aimed at improving performance and reducing interference in offices, server rooms, and data centres. In healthcare settings, there are requirements around system reliability, testing, and bonding conductors to enhance patient safety in care environments.
“The pace of change in our industry means contractors cannot afford to take a reactive approach. Preparing early ensures not only compliance but also gives businesses confidence that their installations are future-ready and resilient.”
BS 7671 Amendment 4 will be published on April 15 2026, with a transition period allowing voluntary adoption however full compliance will become mandatory from October 15 this year.
The Electrical Compliance Collective Ltd (TECC) is a UK-based specialist in electrical compliance, supporting businesses with safe, regulation-ready installations and ongoing professional development. The company is based at Dorcan in Swindon and employs 20 staff and is known for its support of apprenticeships and T level students to bring more talent into the sector. For more information, visit https://tecc.ltd/
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