The gapless zinc oxide arrester adopts zinc oxide resistor as the core component, which has excellent nonlinear volt-ampere characteristics, fast steep wave and large circulation capacity. The composite housed gapless zinc oxide arrester is molded by integral silicone rubber, which has the advantages of small volume, light weight, pollution resistance, free-cleaning, explosion prevention and vibration resistance.  It is an updated product of porcelain-sheathed lightning arrester. Service environment of product: the power frequency is 48-62 Hz, the temperature is 40°C to +40°C, the altitude does not exceed 1,000 m, and the earthquake intensity is VII or below.

Executive standard of product: GB11032-2000 Gapless Metal Oxide Arrester for AC System and JB/T8952-2005 Composite Housed Gapless Metal Oxide Arrester for AC System.

Main technical parameters

Model description: HY refers to composite housed oxide zinc arrester, the following number refers to nominal discharge current (kA), W refers to gapless type, Z refers to power station type, S refers to distribution type, X refers to line type, and the numerator in the fraction after the dash refers to the rated voltage (kV) of arrester and the denominator refers to the maximum residual voltage (kV) under the nominal discharge current. TLB refers to the tape disconnector.