A previous batch's high-voltage safety qualification result serves as reference only; this batch still requires checking against actual documents. When comparing staff training, protective equipment, and the isolation area, do not fill gaps with material from a similar model or a neighboring order. The high-voltage work roster can be marked complete only after unauthorized personnel have been excluded from handling high-voltage systems. Handle the change together with the upstream steps in this import order checklist. The final conclusion belongs in the high-voltage work roster, with who approved it and when it takes effect.