Shaanxi Longxiang Electrical Co., Ltd. is one of the most reliable manufacturers and suppliers of 12kv-220kv surge arrester in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Welcome to buy premium 12kv-220kv surge arrester made in China here from our factory.
Surge arrster is high-voltage electrical components limit system over-voltage and absorb lightning over-voltage as well as switching over-voltage, so as to protect the insulation of electrical equipment inside switchgear.
Surge arresters are widely used in various power distribution scenarios to suppress lightning and switching over-voltages, protecting insulation of transformers, switchgears, cables and instrument transformers.
- Indoor KYN28 switchgear & Ring Main Units
- Cable distribution boxes & Box-type substations
- Pole-mounted transformers for urban & rural power-grid renovation
- Wind power & solar-power booster stations
1. System rated voltage & arrester rated voltage
2. Nominal discharge current:5kA /10kA
3. Requirement for disconnector or surge counter
4. Application environment: normal / heavy-pollution / coastal salt-fog / high altitude
5. Special requirements upon negotiation.
Q1:How to select the correct arrester model? What parameters are required?
A:Please confirm system voltage, installation location, environmental conditions and discharge current grade (5kA/10kA). We select suitable models strictly according to IEC 60099-4 and GB/T 11032 to ensure accurate protection performance.
Q2:Is customization required for high-altitude areas?
A:Yes. altitude above 1000m reduces air insulation strength and causes flashover. Our high-altitude customized arresters adopt larger creepage distance design to ensure stable insulation performance.
Q3:What are the main materials and service life?
A:The core is high-purity ZnO varistor with stable nonlinear performance and strong surge resistance. The housing is made of HTV silicone rubber with excellent weather resistance. The service life is 20–25 years for normal use and over 15 years for harsh outdoor conditions, maintenance-free.
Q4: What is your warranty policy? Do you support OEM customization?
A:Long-term warranty is provided. Free repair and replacement for non-human-induced quality problems. OEM, logo printing and customized parameters are available.
