Insulators and Switchgear for Power Transmission and Distribution
Hunan Haidian manufactures porcelain, glass and composite insulators, metal oxide surge arresters, isolation switches, drop-out fuses and wall bushings, from a plant of more than 13,000 m² in Liling, Hunan. Insulators made here are accepted on China's 1000 kV AC and ±800 kV DC lines, after type testing and inspection of every piece.
Product Series
Each page lists the models we make and the parameters that matter. If you would like a recommendation, tell us the operating voltage and site conditions.
Porcelain Insulator
Disc, pin, line post, shackle, cross-arm and link types for overhead lines and substations.
Tempered Glass Insulator
Glass suspension insulators: anti-pollution, ground wire and double-shed profiles.
Composite Insulator
Post, suspension, strain and line column types, plus a built-in lightning protection limiter.
Production and Quality
- 来料检验 / 成品全检有人在检产品，能看出现场在做什么01
Checked at Every Stage
Incoming material is measured on arrival and finished pieces are inspected one by one, with the process under automated control.
- 型式试验 / 试验设备实验室或试验设备，不要拍报告封面02
Type-Tested Before Supply
Every product type is type-tested and design-tested before it is offered, so the design that ships is the design that passed.
- 技术团队 / 工作场景工程师在画图或讨论，不要摆拍合影03
In-House Engineering
Our engineers come from porcelain research, assembly and testing, and take part in type selection.
Certifications
Certificate scans are available with a quotation, or on request.
About HIDIAN
Hunan Haidian Electrical Porcelain Appliance Co., Ltd. was founded in Liling, Hunan, in November 2018. Liling is where roughly 30% of China's electrical porcelain is made, and our plant covers more than 13,000 m².
We manufacture insulators, high-voltage apparatus and matching power equipment. We supply insulators into China's UHV grid — 1000 kV AC and ±800 kV DC projects — and we export to order.
- 2021Nanchang–Changsha 1000 kV UHVAC
- 2022Baihetan–Jiangsu ±800 kV UHVDC
- 2026Shaanxi–Anhui ±800 kV UHVDC
- Founded
- November 2018
- Plant
- 13,000 m² and above
- Location
- Liling, Hunan, China
- Certifications
- ISO 9001 · 14001 · 45001
Send Us Your Specification
Voltage class, type and quantity is enough to start. If you would rather we choose the type, describe the line or substation it is for.
We usually reply within one working day.