【Daily Topic】【Electrical Edition 20160824】
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Participation reward: 2 Wealth. Reward for correct answer: 9 Wealth. What are the requirements regarding the cross-sectional area of the equipotential connection wires for accessories? ( ) A. When used to connect the exposed conductive parts of two electrical devices, its cross-sectional area shall not be smaller than that of the smaller of the protective wires involved. B. When used to connect electrical devices to the conductive parts outside such devices, it shall not be smaller than half of the cross-sectional area of the corresponding protective wire. C. In any case, its minimum cross-sectional area shall not be less than 5 mm² (in the absence of mechanical protection). D. In any case, its minimum cross-sectional area shall not be less than 5.5 mm² (when mechanical protection is present)
A. When used to connect the exposed conductive parts of two electrical devices, its cross-sectional area shall not be smaller than that of the smaller of the protective wires involved. B. When used to connect electrical devices to the conductive parts outside such devices, it shall not be smaller than half of the cross-sectional area of the corresponding protective wire. C. In any case, its minimum cross-sectional area shall not be less than 5 mm² (when there is no mechanical protection)
The requirements for the cross-sectional area of the auxiliary equipotential bonding wires are (C). A. When used to connect the exposed conductive parts of two electrical devices, its cross-sectional area shall not be smaller than that of the smaller of the protective wires involved. B. When used to connect electrical devices to the conductive parts outside such devices, it shall not be smaller than half of the cross-sectional area of the corresponding protective wire. C. In any case, its minimum cross-sectional area shall not be less than 5 mm² (in the absence of mechanical protection). D. In any case, its minimum cross-sectional area shall not be less than 5.5 mm² (when mechanical protection is present)
The requirements for the cross-sectional area of the auxiliary equipotential bonding wires are (ABC). A. When used to connect the exposed conductive parts of two electrical devices, its cross-sectional area shall not be smaller than that of the smaller of the protective wires involved. B. When used to connect electrical devices to the conductive parts outside such devices, it shall not be smaller than half of the cross-sectional area of the corresponding protective wire. C. In any case, its minimum cross-sectional area shall not be less than 5 mm² (in the absence of mechanical protection). D. In any case, its minimum cross-sectional area shall not be less than 5.5 mm² (when mechanical protection is present)
The requirements for the cross-sectional area of the auxiliary equipotential bonding wires are (ABC). A. When used to connect the exposed conductive parts of two electrical devices, its cross-sectional area should not be smaller than that of the smaller of the protective wires involved.
B. When used to connect electrical devices to the conductive parts outside a device, it should not be smaller than half of the cross-sectional area of the corresponding protective wire.
C. In any case, its minimum cross-sectional area should not be less than 5 mm² (when there is no mechanical protection).
D. In any case, its minimum cross-sectional area should not be less than 5.5 mm² (when there is mechanical protection)
B. When used to connect electrical devices to the conductive parts outside a device, it should not be smaller than half of the cross-sectional area of the corresponding protective wire.
C. In any case, its minimum cross-sectional area should not be less than 5 mm² (when there is no mechanical protection).
D. In any case, its minimum cross-sectional area should not be less than 5.5 mm² (when there is mechanical protection)
The requirements for the cross-section of the auxiliary equipotential bonding wires are (abd).