19.b. In a DC system, the bonding jumper between the negative of the supply and ground is normally made at the source or at the A. end of the DC line. B. first disconnecting means. C. first device on the supply. D. entrance to the building.

19.b. In a DC system, the bonding jumper between the negative of the supply and ground is normally made at the source or at the A. end of the DC line. B. first disconnecting means. C. first device on the supply. D. entrance to the building.

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter5: Conductor Identification, Switch Control Of Lighting Circuits, Bonding/grounding Of Wiring Devices, And Induction Heating

Section: Chapter Questions

Problem 20R: List the methods by which an equipment grounding conductor is connected to a device box.

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Concept explainers

Distribution System

The final stage in the delivery of the electric power is the electric power distribution system. From the transmission system to the individual customers it carries electricity. The distribution system is connected with the transmission system and is used to lower the voltage of the transmission to medium voltage in the range of 2 kV to 35 kV with the help of transformers. This medium voltage to the distribution transformers located near the customer's premises is carried by the primary distribution system lines. These distribution transformers in turn lower the voltage to utilization voltage used in lightings, household appliances, industrial equipments etc. Through secondary distribution lines often several customers are supplied from one transformer. It is through service drops, the commercial and residential customers are connected to the secondary distribution system lines. Customers who demand a larger amount of power can be connected directly to the primary distribution system level or the sub-transmission level.

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19.b. In a DC system, the bonding jumper between the negative of the supply and ground is normally made
at the source or at the
A. end of the DC line.
B. first disconnecting means.
C. first device on the supply.
D. entrance to the building.

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