The best PAT testers require a tester, software and labels. The best PAT testers have different equipment, for instance, a PAT tester can be linked to a computer with a barcode and printer, and this is most expensive for a PAT tester. However, this type of PAT tester is less time consuming, thus, the PAT tester can do more tests in a day than a manual PAT tester, resulting in the best results because the PAT tester will be more experienced.
The IEE Code of Practice is the code of practice for the in-service inspection and testing of electrical appliances and equipment. In order to be the best PAT tester the IEE Code of Practice contains advice on compliance with health and safety legislation which is strongly recommended to be read in order to provide the best PAT test possible.
Factors to be aware of when recognising the best PAT tester:
• The best PAT test should be performed in the correct order for accuracy.
• A PAT test should not be rushed; the tester must be patient, thorough and vigilant, ensuring that every appliance is tested to the best possible standard, in order to receive the best results. Generally, many PAT testers receive bonuses according to the amount of appliances tested.
• Appliances should not be touched whilst testing because this could result in injury and is hazardous for the tester. Even though many PAT tests pass, it is best not to assume because the tester may incur injuries.
• Purchasing the best PAT testing equipment and avoiding second hand testers to ensure accuracy.
• The best PAT testers are those that are attentive, having an inattentive PAT tester would be someone who is applying a pass label on a failed appliance due to the fact that the tester is not willing to fill out a fail sheet, even though this may seem beneficial and appealing to the customer, note that it is extremely dangerous to apply a pass sticker on a failed appliance.
• All appliances should be switched on in order to recognise escaping voltage.
• If there are multiple earth paths the worst case that occurs should be noted, not an average reading.
• One insulation reading would not suffice.
• If an appliance has separate earth bonds, each one must be measured individually.
• Attempting to do an earth bond test on a Class II appliance – this would fail the test because Class II appliances have no earth. Thus, the right type of appliance when PAT testing is crucial.