1331101
Description
Flashcards by Oliver Balay, updated more than 1 year ago
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Created by Oliver Balay
over 9 years ago
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| Question | Answer |
| Continuity of Protective Conductors (inc. Main & Supplementary conductors) | Instrument: Low Resistance Ohmmeter Unit Range: Low Ohms (Ω) Note: Radial circuits: (R1 + R2) or R2 |
| Continuity of Ring Final Circuit Conductors | Instrument: Low Resistance Ohmmeter Unit Range: Low Ohms ( Ω) Note: 3 steps (see OSG) |
| Insulation Resistance |
Instrument: Insulation Resistance Tester
Test Voltage Range:
500 V DC (up to 500 V AC)
Unit Range:
High resistance
(Mega Ohms)
Note: Precautions to take prior to testing
Image:
IRT_Tester (image/jpg)
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| Polarity | Instrument: Low Resistance Ohmmeter Range/Unit: Low Ohms (Ω) Note: Confirmation of polarity is usually a tick or a cross. |
| Earth Electrode Resistance (Dead) |
Instrument: Earth Electrode Resistance Tester
Range/Unit: Ohms (Ω)
Note: TT Systems (see OSG for guidance)
Image:
Earth_Electrode (image/jpg)
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