Electric swimming pool equipment cannot be installed in vaults or pits without drainage unless it is what?

Electric swimming pool equipment is designed to operate safely in wet locations, but specific considerations need to be taken into account when installing such equipment in vaults or pits. The National Electrical Code (NEC) emphasizes the importance of ensuring that electrical equipment can handle potential submersion in water, especially in environments like pools where water may accumulate.

When equipment is rated for submersion, it means that the manufacturer has tested and certified it to operate safely and reliably even when it is submerged in water. This rating provides assurance that the equipment can resist water ingress which could result in electrical shock hazards or equipment failure.

The NEC requires that such safety standards be adhered to ensure that all electrical installations are safe, especially in areas prone to flooding or pooling water. Thus, without proper drainage systems in place, only equipment rated for submersion can be safely installed in vaults or pits to prevent accidents and ensure reliability in operation.