Multiple Choice

An electrical contractor is investigating why their service department has a high callback rate for new circuits that 'work initially but trip later,' even though technicians report 'power is verified' on every job. After analyzing the technicians' workflow, the contractor finds that technicians are only confirming the presence of voltage with a non-contact tester. Which component of the deliverable standard is being neglected, and what is the logical consequence?

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Updated 2026-05-08

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