Test Talk: FAQs

Question:

Whilst looking at different specifications of test equipment, I’ve come across the phrase ‘ramp test’. I know this has something to do with testing RCD’s, but what is a ramp test?

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Question:

Our company use a fleet of Megger MFT1720 multifunction testers to complete inspection, testing and certification of both new and existing electrical installations. However, when we carry out a loop test at the same socket outlet, each tester displays a varied reading which may differ by 0.20 Ohms. Why is this when the make and model of each tester in use are identical?