Stopping when things do not match the plan is something you get good at on purpose. It is not losing your nerve.
Everything on a site pushes the other way -- the schedule, the person who told you to do it, and not wanting to look like you cannot handle it. That pressure is exactly why this has to be a trained habit instead of a judgement call in the moment.
Notice what step 2 does not say. It does not say fix it. An apprentice's job at that moment is to make things safe as far as their training goes and then hand the problem to someone whose training goes further. Trying to resolve it yourself is how a stop turns back into the thing you stopped for.
Check yourself: You isolated what you were told to isolate, and then find a second supply nobody mentioned. Continue carefully?
Answer: No. An unexpected second supply is a reason to pause and reassess.
The plan you were working to described one supply. A second one means the plan does not describe this equipment, so nothing about the isolation you did can be assumed to cover it.
No card. No account needed to start. Score by topic against the 70% mark.
Written from the owner's poster for this lesson. Nothing added beyond what the poster states.
Written for Texas apprentices as free study material. The Texas apprentice licence is an application, not an exam (Occupations Code 1305.161), and nothing here counts as apprenticeship hours or continuing-education credit. VoltMark is not affiliated with, endorsed by, or sponsored by NFPA, PSI, TDLR, or any state or local licensing authority. Always follow your employer's safety programme and your supervising electrician.
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