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Portable Appliance Testing

( PAT Testing )

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PAT Test - Extension Leads

Extension Leads

Where extension leads are fitted with a standard 3 pin socket outlet these should be tested as Class1 appliances with the addition of a polarity check. Any such extension leads that are found to be without an earth wire should be marked as defective and removed from service.

The length of an extension lead should be checked to ensure that it is not so great that the appliance performance may be affected by voltage drop. Additionally, the length should not exceed the following:

core area maximum length

1.25mm2 12 metres

1.5mm2 15 metres

2.5mm2 25 metres

2.5mm2 extension leads are too large for standard 13A plugs, although they may be used with BS EN 60309 industrial plugs. Extension leads exceeding the above lengths should be fitted with a 30mA RCD manufactured to BS 7071.

Cable reels must be used within their reeled or unreeled ratings as appropriate.

 

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13 St Giles Close
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Bicester
Oxfordshire
UK
OX25 2PZ
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