What markings are required on outdoor service equipment?

The requirement for markings on outdoor service equipment, particularly regarding voltage levels, is crucial for ensuring safety and proper operation. Marking the voltage level helps to inform operators and service personnel about the specific electrical characteristics of the equipment. This is especially important in outdoor installations where multiple voltage systems may be present. Clear voltage markings can prevent accidental contact with equipment that operates at dangerous levels, thereby reducing the risk of electrical shock or equipment damage.

In addition to voltage levels, outdoor service equipment often includes other essential markings, such as the manufacturer's name and model number, which are important for identification and service but do not play a direct role in operational safety in the same way that voltage markings do. The installation date is also not a universal requirement and primarily serves for maintenance records rather than safety during operation. Understanding the significance of voltage level markings helps ensure adherence to safety standards outlined in the National Electrical Code (NEC).