Service-drop conductors must have a minimum of __ vertical clearance from final grade over residential property and drive-ways, as well as those commercial areas not subject to truck traffic where the voltage is limited to 300 volts-to-ground.A. 10 ft               B. 12 ft         C. 15 ft         D. 18 ft

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Asked Oct 20, 2019
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Service-drop conductors must have a minimum of __ vertical clearance from final grade over residential property and drive-ways, as well as those commercial areas not subject to truck traffic where the voltage is limited to 300 volts-to-ground.

A. 10 ft               B. 12 ft         C. 15 ft         D. 18 ft

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Expert Answer

Step 1

Service drop conductors is used to transfer electric power to consumers. These conductors must be able to carry load current. These conductors must have sufficient mechanical strength. It is either used in single phase or three phase system.

Step 2

Service-drop conductors must have a minimum of 12ft vertical clearance from final grade over residential property and driveways, as well as those commercial areas not subject to truck traffic where the voltage is limited to 300volts to ground.

 

Clearance provided for the safety of people.

 

Clearance depends upon value of voltage supply and condition of supply area.

...

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