Info@xsdsingder.com; www.wiringharnesscables.com;UL 3271 is a standard set by Underwriters Laboratories (UL), a global safety certification organization. UL 3271 specifies the requirements for single-conductor, cross-linked polyethylene (XLPE) or polyethylene (PE) insulated wires and cables with a voltage rating of 600 volts. These cables are commonly used in various applications, including power distribution, control circuits, and internal wiring of electrical equipment.