| 1. | This measures the difference between current flowing through the neutral conductor.
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| 2. | The center tap is not distributed to the equipment and no neutral conductor is used.
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| 3. | This system is used with 110 V equipment and therefore no neutral conductor is needed.
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| 4. | In normal operation, all the current down the live conductor returns up the neutral conductor.
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| 5. | Switching a neutral conductor can create a shock hazard.
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| 6. | Neutral conductors are usually insulated for the same voltage as the line conductors, with interesting exceptions.
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| 7. | Lamps with screw bases will connect the shell of the lamp socket to the neutral conductor.
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| 8. | Harmonics can cause neutral conductor current levels to exceed that of one or all phase conductors.
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| 9. | Each of the hot leads should carry the full load current, and there is no neutral conductor.
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| 10. | This is particularly the case for the third harmonic, which causes a sharp increase in the neutral conductor.
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