High Voltage 10kv 35kv Colored Polyolefin Busbar Heat Shrink Tubing for Switchgear. Rated for 1kV, 10kV, and 35kV systems, effectively preventing electrical flashovers and short circuits. Rapid & Tight Shrinking: 2:1 shrink ratio ensures a fast, seamless, and bubble-free fit over complex copper or aluminum busbars. High Flame Retardancy: VW-1 rated and self-extinguishing to guarantee maximum safety in switchgear environments. Clear Phase Identification: Available in vibrant Red, Yellow, Green, Blue, and Black for standard power system coding. Extreme Durability: Excellent resistance to abrasion, chemicals, weathering, and long-term aging. Eco-Friendly & Certified: Halogen-free, heavy metal-free, and fully CE & RoHS compliant.