Ewrb theory exam - Study guides, Class notes & Summaries

What is the minimum value of the permitted test result for the insulation resistance test of a three-phase, 400V, mains cable? 1MΩ When carrying out testing on a low voltage electrical installation, which document details the tests and checks required to be carried out? AS/NZS 3000 What is the minimum or maximum test result value you would consider acceptable for an Earth Continuity test? 1Ω or less State TWO types of electrical protection provided by a RCBO. ANY TWO: - Earth Leakage - Over...

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What does BJT stand for? - ANSWER Bipolar Junction Transistor What does the transducer do? - ANSWER converts energy from one form to another State one factor that determines voltage drop - ANSWER Length of cable State one reason why a class 1 electrical appliance is set at a maximum of 1 ohm - ANSWER It prevents the touch voltages rising to dangerous levels State the test voltage used for carrying out an insulation resistance test. - ANSWER 500V DC

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