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Electrics & control of plumbing & domestic heating Flashcards | StudBud
Electrics & control of plumbing & domestic heating
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A reading of 0.2 Ohms to the live and earth of an immersion heater has been found. What describes what has happened?
A
Dead short – the element has blown and contacted with the copper casing
B
Reverse polarity – the live and neutral have been connected in reverse
C
Open circuit the element has overheated, blown and interrupted the circuit
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