PAT Testing Records Tracking Guide
Records of portable appliance testing ensuring all portable electrical equipment on construction sites is safe to use.
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If you manage subcontractors in these trades, you need to track this document for each of them.
What Are PAT Testing Records?
PAT (Portable Appliance Testing) testing records document the inspection and testing of portable electrical equipment used on construction sites — including power tools, extension leads, transformers, and temporary lighting. Records show the equipment identifier, test date, test results (insulation resistance, earth continuity), and whether the item passed or failed. While there is no specific legal requirement for formal PAT testing, employers have a duty to ensure electrical equipment is maintained in a safe condition, and PAT testing is the recognised way to demonstrate this.
Why PAT Testing Records Matter
Electrical incidents on construction sites cause fatalities, severe burns, and fires. Defective portable equipment — frayed cables, damaged plugs, failed insulation — is a common cause. While PAT testing is not explicitly mandated by name in legislation, the duty to maintain electrical equipment safely is. HSE inspectors will ask to see evidence that portable equipment is regularly checked and maintained. Missing or incomplete PAT records suggest a lack of control over electrical safety on site.
This guide is for informational purposes only. ContractorVault does not provide compliance advice, certify documents, or approve compliance status. Always consult a qualified professional for specific regulatory requirements.
What You Need to Know
UK Regulation
Electricity at Work Regulations 1989(external link)Review Frequency
Risk-based frequency — typically every 3-12 months depending on equipment type and environment
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Frequently Asked Questions — PAT Testing Records
Is PAT testing a legal requirement on construction sites?
PAT testing by name is not a specific legal requirement. However, the Electricity at Work Regulations 1989 require employers to maintain all electrical equipment in a safe condition. PAT testing is the widely accepted method for demonstrating compliance with this duty. In practice, most construction sites require evidence of PAT testing for all portable equipment.
How often should portable equipment be PAT tested on a construction site?
Construction sites are classed as harsh environments, so more frequent testing is recommended. The IET Code of Practice suggests equipment on construction sites should be checked every 3 months. However, the actual frequency should be based on a risk review considering the type of equipment, how it is used, and the conditions on site.
Who can carry out PAT testing?
There is no formal qualification requirement, but the person must be competent — meaning they have the knowledge and experience to carry out the testing safely and interpret the results correctly. For construction sites, many contractors use qualified electricians or specialist PAT testing providers. Keeping evidence of the tester's competence is good practice.
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