What is the minimum distance a flammable-liquid or oil-filled transformer must be installed from a non-combustible surface?

The minimum distance a flammable-liquid or oil-filled transformer must be installed from a non-combustible surface is 2 feet. This regulation is in place to minimize the risk of fire hazards associated with the petroleum-based fluids used in such transformers. By maintaining this distance, it ensures that in the event of a leak or spill, the risk of ignition from nearby surfaces is reduced, thereby contributing to safer operational environments.

The choice of 2 feet aligns with codes designed to mitigate risks associated with the storage and use of potentially flammable materials. This distance allows for adequate ventilation and space for installing safety barriers if required. Understanding this specification is crucial for compliance with safety regulations and for ensuring that installations meet industry standards to protect both property and personnel.