| 1. | A multiwire branch circuit has both energized wires of a 120-240V split phase service.
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| 2. | The rotor's three phases are connected to six branch circuits.
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| 3. | The smallest branch circuit rating is 15 amperes, used for general purpose receptacles and lighting.
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| 4. | They also provide parallel arc protection for the branch circuit starting at the AFCI receptacle.
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| 5. | Existing homes with this older aluminum wiring used in branch circuits present a potential fire hazard.
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| 6. | An AFCI does not detect high line voltage due to an open neutral in a multiwire branch circuit.
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| 7. | However, most existing residential knob-and-tube installations, dating to before 1940, have fewer branch circuits than is desired today.
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| 8. | Feeder and branch circuit wiring systems are designed primarily for copper wire is used almost exclusively in branch circuitry.
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| 9. | The reported hazards are associated with older solid aluminum branch circuit wiring ( smaller than No . 8 AWG)
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| 10. | Each of the six branch circuits make their way three times progressively around the rotor in right hand flattened spirals.
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