How far must propane tanks be refilled from the nearest building?

The correct distance for refilling propane tanks from the nearest building is indeed 50 feet. This requirement is rooted in safety regulations that aim to minimize the risks associated with potential leaks, fires, or explosions. Propane is a highly flammable substance, and maintaining a safe distance helps reduce the exposure of buildings and people in the vicinity to hazardous situations.

In most jurisdictions, safety codes like the National Fire Protection Association (NFPA) guidelines specify this distance to ensure that any incident involving the propane tank does not pose an imminent threat to nearby structures. This regulation must be adhered to for not only compliance purposes but also to protect both human life and property.

The other distances provided may seem plausible, but they do not conform to the established safety protocols for propane storage and refilling. Understanding and applying these safety measures is crucial in the electrical contracting field, especially when dealing with flammable gases and materials.