Code Standards And Practices Level 6 Practice Test

Location-based installation safety for transformers in the NEC distinguishes where equipment can be placed based on risk and access control. Table 450.3(A) sets out installation allowances by location category, showing that some equipment can be installed in any location under certain conditions, while other equipment must be installed in supervised locations only because of higher risk. This dual approach reflects how different environments and equipment types carry different hazards—so the code provides both flexibility for less hazardous setups and stricter control where risk is greater. Therefore, the statement is true: the table provides provisions for both “any location” and “supervised locations only.” It isn’t limited to dry-type transformers nor to primary protection alone.