Low-voltage gas-fired luminaires must be located at least how far from the inside walls of the pool?

The correct distance for low-voltage gas-fired luminaires from the inside walls of the pool, as specified in the National Electrical Code (NEC) Article 680, is 5 feet. This requirement is established to ensure safety and minimize the risk of electric shock or other hazards associated with electrical equipment being too close to water, which can conduct electricity.

By maintaining this 5-foot distance, the luminaires are kept far enough away from the pool's edge to reduce the likelihood of water splashes affecting them and to mitigate potential electrical hazards for individuals using the pool. This separation reflects a balance between providing adequate illumination around the pool area while prioritizing safety for users in and near the water.

The other distances provided do not conform to the NEC requirements for low-voltage gas-fired luminaires, as they either exceed the necessary safety parameters established by the code or are not aligned with best practices for pool lighting. Understanding the context of these requirements is crucial for ensuring that any installations comply with the NEC and prioritize user safety around swimming pools.