PCB Regulations Changing

28th April 2025

What’s changing?

Stemming from a revision to legislation made in 2019, the UK carried out an impact assessment, concluding that any equipment containing volumes of more than 0.05dm3 (0.005%) PCBs is to be classed as contaminated equipment and required to be removed as soon as possible, but by no later than December 31st, 2025.

What are PCBs?

Their full name is Polychlorinated Biphenyls. Although these synthetic organic chemicals have good electrical and fire-resistant properties, they are also known for their toxic and bioaccumulative nature, which poses significant risks to human and animal health. Introduced as insulating oil, PCBs were extensively used in the production of capacitors and transformers from the 1950s, although the manufacture of electrical equipment containing PCBs has been prohibited in the UK since 1987.

What should I look for?

Primarily, any equipment containing insulating oil manufactured before 1976. Typically, transformers, for example, although there is a risk until their prohibition in 1987 of PCBs being present. Caution also needs to be applied even if the oil has been replaced, as there’s still a risk that PCBs are present, along with consideration to cross-contamination where the same equipment has been used to change oil in both contaminated and non-contaminated units.

What do I need to do?

We recommend that the view is taken that PCBs are present in any such unit which could be viewed as falling under any of the above parameters, unless you have information to prove otherwise. Should you not hold this information or wish to ensure compliance with the PCB regulation, EME Power Systems can offer an oil analysis service, typically non-disruptive to supplies, to establish PCB levels within the oil. Following the results, we can advise you further should any remedial action be needed.

If you require any further information or to speak to an Electrical Engineer, please get in touch with us on 01529 410999

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