Utility Grid Earthing Cable Holder with Flame Retardant Plastic

Traditional steel and iron clamps are magnetic materials. When single-core AC cables run through them, they generate a closed-loop alternating magnetic field, causing severe eddy current heating that can burn through the cable jacket and trip the system. Polyamide (Nylon) cable clamps are 100% non-magnetic and non-conductive. They completely eliminate eddy current heat loss and provide superior electrical insulation, preventing physical cable wear without any magnetic interference.

Untreated pure plastics tend to creep and deform under long-term compression and outdoor thermal changes. By adding 30% fiberglass to Polyamide 66, the tensile strength is boosted to over 120 MPa, the heat deflection temperature is raised to +200C, and the mechanical rigidity is heavily multiplied. PA66-GF30 cable clamps possess exceptional loading capacity and dimensional stability, ensuring they will not warp, sag, or crack under the weight of heavy high-voltage cables in vertical shafts

Yes, our fiberglass polyamide cable clamps are rated for extreme environments. They are formulated with anti-UV and anti-aging compounds, making them perfect for outdoor photovoltaic systems, marine oil rigs, and coastal substations with high salt fog. For fire safety, they conform to the UL94 V-0 flame-retardant standard (the highest grade), meaning they will self-extinguish within 10 seconds of fire source removal and produce no toxic, dense smoke.