Composite Insulators
Silicone-rubber composite insulators with high-strength epoxy resin glass fiber core rods, labyrinth waterproof design and 100% ultrasonic testing.
ZTT Products
Power Infrastructure
Fittings and insulators for AC and DC overhead transmission lines from distribution up to UHV. Composite insulators, forged suspension and tension clamps, self-locking spacers, vibration dampers, anti-corrosion thermal-diffusion coating and composite-housed metal-oxide lightning arresters — engineered by ZTT / Jiangdong Fittings and delivered on UHV, UHV-DC and river-crossing projects worldwide.
ZTT Wedge Clamp
Non-compression wedge-type clamp — no conductor cutting required, energy-saving and without contact-resistance rise.
Forged Suspension Clamp
Forged aluminium-alloy suspension clamp — half weight, double strength versus conventional cast designs, with ZTT-owned IP.
Self-Locking Spacer / Spacer Damper
Maintenance-free quick self-locking spacer / spacer damper — around 3× faster to install and eliminates clamp fall-off on traditional latch types.
High-Strength Compression Tension Clamp
High-strength compression tension clamp verified on AACSR-900/510 conductor at 102.98% of the rated tensile strength.
Anti-Corrosion Fittings — Thermal Diffusion Coating
Fittings protected by ZTT thermal diffusion (GREENKOTE) zinc-aluminium coating — 4000 h salt spray, no hydrogen embrittlement.
Vibration Dampers & Vibration Study
Full vibration solution — Stockbridge and spacer dampers backed by TIII / SPACER DISTRIBUTION / SINGLE Tecnodin vibration simulation software.
Composite-Housed Metal Oxide Lightning Arresters
10–220 kV power-station type composite-coat metal-oxide lightning arresters — industrialised by ZTT / Jiangdong in 2017.
Need a specification we don't list?
We source technical products on request. Send us your specification sheet and we will respond with sourcing options and lead times.