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What is a PAT test certificate?
A PAT test certificate is provided to a business owner by the PAT testing specialist, such as phs Compliance, after their portable appliances have been tested. It can be used to prove compliance to regulators, insurers, customers and staff.
Unless you have a very good understanding of the workings of electrical equipment, and the relevant training to be able to use and fully understand portable appliance testers, it is not recommended that you carry out your own PAT test. It could put you, your business and other users at risk. Always seek a fully qualified and experienced professional to carry out the testing.
Putting your electrical safety in the hands of a professional service like phs Compliance gives you the peace of mind that you are fully complying with all of the regulations, as well as keeping your business, visitors and staff safe.
How Does PAT Testing Work?
The earth continuity test allows for verification of the connectivity between any exposed metal parts and the protective earth pin in the mains plug of a class 1 appliance. This involves connecting the item of electrical equipment to the PAT tester, and the test probe to exposed metal parts. A current is then transferred from the PAT tester along a mains cord to the enclosure. This current then flows back to the PAT tester via the protective earth conductor. This will result in the display of the protective earth path resistance.
The measurement of a predictive conductor current will require the connection of the appliance to the PAT tester. The powering of the appliance will result in a current flowing along the mains supply via live and neutral conductors. The live and neutral currents will ideally be neutral. However, the PAT may highlight an imbalance between the live and neutral currents in some instances.
Why is it important?
It is essential because it keeps the power safe for those in proximity to electrical equipment.
Pat testing prevents accidents by ensuring that there are no potential hazards such as:
Faulty wiring, loose connections or improper grounding of a device. Pat testing ensures proper and complete insulation from the high voltage or low-voltage alternating currents used in electricity distribution systems to establish an adequate ground connection between system parts (elements) that may be exposed to different voltages. It also helps prevent fires caused by defective plug connectors, faulty plugs and poor design flaws on circuit breakers and fuses. This process can help eliminate defects before they cause any harm or injury to people working near these devices.