Import Bimetallic Parallel Groove Clamps — Buy in Bulk from Supplier in China

These bimetallic parallel groove clamps are designed for connecting aluminium conductors per DIN 48201 and ACSR conductors per DIN 48204 to copper tap-off conductors, also per DIN 48201. The clamp body is hot-forged from high-strength, corrosion-resistant aluminium (99.5% purity), while the bolts, nuts, and conical washers are made from steel grade 8.8, hot-dip galvanised to DIN 933, DIN 934, and DIN 6796 standards for durability in outdoor electrical installations.

The bimetallic sheet pressed into the lower part of the clamp ensures a reliable electrical and mechanical connection between aluminium and copper conductors, addressing the galvanic corrosion risks inherent in such pairings. This design is standard for overhead power lines, substations, and distribution networks where dissimilar metals must be joined without compromising conductivity or structural integrity. The clamp’s groove profile is engineered to DIN 48201 specifications, ensuring compatibility with standard conductor diameters.

Utility companies and electrical contractors source these clamps for new line installations or repairs, as they provide a cost-effective, code-compliant solution for tapping or splicing conductors. The supplier, based in Wenzhou, Zhejiang, can provide bulk quantities, but buyers must confirm the exact conductor size range supported by each clamp model, as well as the applicable voltage rating for their application.

Zhejiang Tianhong Electric Power Fitting Co., Ltd is located at No.82, Yuedu North Road in the Changhong area of Liushi, Wenzhou, Zhejiang Province. The company specialises in electrical power fittings, with a focus on components for overhead transmission and distribution lines, including clamps, connectors, and suspension hardware. Its trust tier is classified as harbor, indicating baseline export verification, but its current response rate to inquiries is 0.00%.

The supplier’s profile does not disclose production capacity, annual output, or client references, and no certifications beyond compliance with DIN standards are explicitly stated. Buyers should request updated test reports for mechanical strength, electrical conductivity, and corrosion resistance, as well as proof of galvanisation thickness for the steel components. Wenzhou’s proximity to major ports like Ningbo and Shanghai may offer logistical efficiencies for bulk shipments.