PAT Testing
Portable Appliance Testing from Surrey Electrical Safety
PAT Testing
Damage to flex leads exposing live wires
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The outer insulation of the lead is broken/split. Inner wires are visible. This is commonly found in offices and schools and is repairable.
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In this example both layers on insulation is now visible, exposing live wires. This needs to be replaced as it is dangerous.
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Outer insulation damage to the lead found on a refrigeration unit (a high risk environment )
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This is a laptop Ac adapter, which has damage to the lead a common problem due to it being caught in drawers and doors.
Signs of burning and overheating
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Melting and burning marks found on a fan heater. These are very popular in offices, under desks plugged into extension leads. Extremely dangerous and could potentially cause a fire.
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This is unusual find, a insect had been living inside a plug of a kettle. This eventually caused the fuse to blow resulting in this!
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This shows obvious signs of burning and includes damage to the socket itself, caused directly from an overheated portable appliance.
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The extension lead, these are often overloaded and are a huge risk as a result.
Counterfeit Plugs
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A common indicator of a counterfeit plug is insulation on the earth pin. This example includes a counterfeit fuse.
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Having a sleeve on the earth pin is dangerous because it can prevent there being any contact with the earth of the socket.
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Plugs with partially sleeved earth pins are always counterfeit.
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These are not allowed to be sold, even for non – earthed appliances. Our engineers will be able to identify any counterfeit plugs/leads and replace them with a genuine one.
Counterfeit Fuses
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Counterfeit fuses can be quite obvious to spot, this one has loose caps and no approval markings.
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Counterfeit fuses quite often have no approval markings, no sand filling and loose end caps.
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Some counterfeit fuses will often carry fake approval marks such as BS (British Standards) or ASTA.
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If we find any suspicious counterfeit fuses we will always replace them with a genuine one.