On a warehouse conversion during plan review, a design requires surge-protective equipment at a dwelling service; what installation principle is important?
- ARemove grounding electrodes
- Use listed equipment with short conductors
- CInstall an unlisted plug strip inside the panel
- DIncrease breaker size instead
Why B is correct
A listed SPD depends on correct connection and low-impedance lead routing; ordinary plug strips and larger breakers do not satisfy service protection. The best answer is therefore “Use listed equipment at the required location with conductors kept appropriately short.” The other choices either address a different system, rely on an unsafe shortcut, or make a conclusion not supported by the stated facts.