10 inches of length of sheathing approximately should be removed from a cable before the cable is installed in a box. Thus, Option D is the correct statement.
What do you imply by sheathing in the cable?
The electrical wire that has the insulated stands is enclosed in a further sheath. Wire for the transmission of power or digital signals, included via way of means of an enclosing internet of earthed wire mesh or metallic foil to keep away from electromagnetic interference from (or to) different signals.
Hence, Option D is the correct statement.
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