Key Link supplies power line hardware, composite insulators and porcelain post insulators for overhead transmission and distribution networks — selected and verified against IEC, GB, BS, ANSI and AS standards, from 10 kV AC to 1000 kV and beyond.
Products & capabilities
Key Link covers the hardware and insulator needs of overhead power lines, substations and OPGW/ADSS communication lines. Send your drawings or standard requirements — we review, select and quote as a complete package.
Full range of composite insulators for AC and DC overhead lines, with silicone rubber weathersheds and high mechanical-strength fittings.
Full type-specific parameters and test reports available on request — we select per your voltage class and load requirements.
Outdoor station post porcelain insulators for substations, busbars and switchgear — robust ceramic insulation with proven long-term service.
IEC 60273 · ANSI C29.9
Request datasheet →
Complete line hardware for conductors, earth wires and optical ground wire systems, supplied with full type and dimension tables.
IEC · GB · BS · ANSI · AS
Send your hardware list →| Product family | Key parameters | Standards |
|---|---|---|
| Composite insulators | FXBW 10 kV – 1000 kV AC · FXBZ ±400 kV – ±1100 kV DC | IEC · GB · BS · ANSI · AS |
| Porcelain post insulators | BIL 60 kV – 3200 kV | IEC 60273 · ANSI C29.9 |
| Line hardware & OPGW/ADSS fittings | Clamps, connectors and optical cable fittings — type tables per item | IEC · GB · BS · ANSI · AS |
Full catalogs with type numbers and technical parameters — download and share with your engineering team.
How we work
Every order starts with technical review, not just a price list. This is how we keep quotations rigorous and deliveries consistent.
Send drawings, standards, quantities and voltage class.
We verify drawings and compare against the applicable standard.
Complete commercial offer with no hidden assumptions.
Manufacturing follows the agreed specification, with quality control checks.
Packed and shipped to your site or port of destination.
About us
Key Link is a Shanghai-based supplier of power line hardware and insulators for transmission and distribution projects worldwide. Founded in 2015, the company combines more than ten years of power-industry export experience with rigorous engineering review and disciplined sourcing.
Our team reviews drawings and international standards before quoting, selects and sources across the supply chain for better cost, and delivers complete packages for overhead lines, substations and OPGW/ADSS communication lines.
Send your inquiry with drawings or standards — we reply with a complete technical and commercial offer.
Contact & inquiries
For fastest response, include product type, voltage class, quantity, destination country and your drawings or applicable standard.