What type of conductor shall be installed outdoors for air-conditioning and refrigeration equipment on roofs?

When considering the installation of conductors outdoors for air-conditioning and refrigeration equipment, particularly on roofs, it is essential to prioritize safety and compliance with electrical codes. Equipment grounding conductors are specifically intended to prevent electric shock and ensure the safe functioning of electrical equipment.

These conductors are designed to connect the non-current-carrying metal parts of the equipment to the grounding system, which helps to mitigate the risk of electrical faults by providing a safe pathway for fault currents to earth. This is critical in outdoor environments where environmental factors can increase the risk of equipment malfunctions or damage.

Moreover, grounding conductors contribute to the overall reliability of the air-conditioning and refrigeration systems, particularly in locations that may be prone to lightning strikes or surge events. By grounding the equipment properly, you help protect not only the equipment itself but also personnel who may be working nearby.

Therefore, the choice of an equipment grounding conductor for outdoor installations is both a safety measure and adherence to industry standards, ensuring that such systems operate safely in potentially hazardous conditions.