NM CID EL-1 Practice Questions - New Mexico CID EL-1 Electrical Distribution Systems, Including Transmission Lines Examination Exam

A shielded medium-voltage cable termination (stress cone or geometric termination) is required because:

the shield must end abruptly to increase stress at the jacket ending the insulation shield without controlling the electric field would overstress the insulation at the shield cutoff NEC 310.16 requires stress cones on 4/0 THWN stress cones replace the concentric neutral

Correct Answer:

ending the insulation shield without controlling the electric field would overstress the insulation at the shield cutoff

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