EIC or PAT Testing: Which Do You Need and When? UK Guide

EIC or PAT Testing: Which Do You Need and When?

An EIC and PAT testing cover different parts of electrical safety. An Electrical Installation Certificate relates to qualifying new fixed electrical installation work, while PAT testing concerns individual electrical appliances or equipment already in service. You may need one, both, or a different document such as an EICR or Minor Works Certificate depending on what has actually been installed or needs checking.

What Is the Difference Between an EIC and PAT Testing?

The simplest difference is what is being assessed. An Electrical Installation Certificate relates to defined fixed electrical installation work. PAT testing concerns individual electrical appliances or equipment.

If a new circuit has been installed, the question is about electrical installation certification. If the concern is the condition of a kettle, computer, extension lead or other electrical equipment already in use, appliance inspection and testing is the relevant area.

One cannot replace the other. A PAT testing record does not certify newly installed fixed wiring, and an EIC does not confirm that every portable appliance in a property has been inspected or tested.

When Do You Need an Electrical Installation Certificate?

An EIC is used to certify qualifying electrical installation work after the relevant design, construction, inspection and testing have been completed. The current IET model form identifies uses including a new electrical installation, work introducing one or more new circuits and replacement of a consumer unit or distribution board.

It can also be used in certain cases involving multiple additions, alterations or remedial works as an alternative to issuing several Minor Electrical Installation Works Certificates.

If your work falls within this scope, you can read more about Electrical Installation Certificate work and the inspection, testing and documentation associated with it.

An EIC is normally connected to electrical work that has actually been carried out. It should not be treated as generic paperwork that can simply be requested for any existing installation or historic work where the required design, construction and verification responsibilities are unknown.

When Is PAT Testing the Relevant Choice?

PAT testing is relevant when the subject is electrical equipment rather than the fixed installation. It can form part of the inspection and testing arrangements used to check appliances and portable or plug-connected equipment that is already in service.

The process may include visual inspection of the equipment, plug, flexible cable and casing, followed by suitable electrical tests according to the type and construction of the equipment. Not every item receives an identical test sequence.

Examples can include office equipment, extension leads, chargers, kitchen appliances, portable tools and other electrical equipment covered by the testing programme. For this type of work, the relevant RCD Electrical service is portable appliance testing.

PAT testing is often misunderstood as a compulsory annual test for every appliance. HSE guidance states that the law does not prescribe PAT testing itself as a compulsory annual procedure. For workplaces, electrical equipment must be maintained to prevent danger, while the appropriate checks, inspection and testing frequency should reflect factors such as the equipment, how it is used, its environment and previous results.

EIC or PAT Testing: Which Applies to Your Situation?

Do You Actually Need an EICR Instead?

If no new installation work has been carried out and your main question is whether the existing fixed electrics are in suitable condition, an EIC is not the correct substitute. The relevant route is generally an Electrical Installation Condition Report.

An electrical safety inspection assesses the condition of the existing fixed electrical installation. This is different from certifying new work with an EIC and different again from checking individual appliances through PAT testing.

Can You Need Both an EIC and PAT Testing?

Yes. The two are not competing certificates, so a property or workplace can have a valid reason for both.

For example, an office refurbishment may include new circuits or other qualifying fixed electrical work requiring installation certification. The same office may also contain computers, monitors, extension leads, kitchen equipment or other electrical equipment managed through an inspection and testing programme.

The EIC relates to the completed fixed installation work. The appliance checks relate to the equipment being used within the premises.

What Should Landlords and Businesses Check?

Landlords and businesses should avoid choosing an electrical document simply because its name sounds familiar. The correct inspection, test or certificate depends on whether the subject is new fixed electrical work, the existing installation or individual equipment.

For rented properties, an EIC does not replace the periodic condition assessment of the existing fixed installation. Current GOV.UK guidance requires landlords to have relevant electrical installations inspected and tested at least every five years, with separate provisions applying to electrical equipment provided under a tenancy.

For workplace electrical equipment, HSE guidance takes a risk-based approach to maintenance. It specifically warns against assuming that every appliance in a low-risk environment must receive PAT testing every year.

If new fixed installation work has also been completed, the certification for that work should be considered separately from either the periodic installation inspection or appliance-testing arrangements.

What Information Helps Identify the Right Electrical Service?

Before arranging testing or certification, establish what has actually happened at the property. Useful information includes whether electrical work is planned or already complete, whether new circuits were installed, who carried out earlier work, and whether you need to assess fixed wiring or individual equipment.

If you already have previous EICs, EICRs, Minor Works Certificates or appliance-testing records, keep them available. They can help separate new installation certification from periodic condition reporting and equipment testing.