Composite shielding insulation sleeve: building a solid barrier for efficient electromagnetic protection
Publish Time: 2025-01-20
A. Insulated tubular busbars have been developed and applied for 30 years abroad, primarily featuring three brands: PBP from Germany, REZ SIS from Germany, and RIP from Switzerland.
B. The manufacturing process involves wrapped crepe paper epoxy resin impregnation vacuum casting technology.
The company has globally pioneered new processes for producing insulated tube-type busbar insulation layers, using composite shielded insulated sleeves made from thermoplastic polypropylene environmentally friendly materials, achieving three-layer co-extrusion in a single forming process, resulting in low energy consumption during production and operation, with no harmful gas emissions. Furthermore, the later polypropylene materials can be 100% recycled, generating no solid waste, making it energy-saving and environmentally friendly, thus leading the direction of industry development.
Globally pioneering the use of energy-saving and environmentally friendly polypropylene material extrusion processes.
Globally pioneering the separate preparation of composite shielded insulated sleeves.
Globally pioneering the upgrade of the production model for composite shielded insulated tubular busbars to an prefabricated production model.
Globally pioneering fully automated prefabricated production.
Energy-saving, environmentally friendly, reliable quality, and automated production for assembly.
Material's main physical property indicators are superior to rubber and epoxy resin.
Breakdown strength of 45kV/mm, dielectric loss factor of 0.0005, volume resistivity of 1.0 x 10^17 Ω·cm, tensile strength of 26MPa, elongation at break of 550%, thermal deformation not exceeding 6% at 130℃ for 6 hours.
Excellent material properties assure high quality of insulated busbars.
Insulated tubular busbars produced using composite shielded insulated sleeves in prefabricated mode meet and exceed relevant standard requirements.
The insulated sleeve uses a three-layer co-extrusion process developed separately.
It is not processed simultaneously with the tube conductor, unaffected by the weight of the tube conductor, ensuring that the wall thickness of each layer of the composite shielded insulated sleeve is uniform, eliminating weak insulation points and ensuring the consistency and stability of insulation performance.
Main technical indicators exceed relevant national standards: 10kV busbar withstands 55kV for 15 minutes, no flashover or breakdown, and partial discharge not exceeding 5pc at 20kV, 35kV busbar withstands 117kV for 15 minutes, no flashover or breakdown, and partial discharge not exceeding 5pc at 45kV.
Armored busbar withstands mechanical shocks rated at IK10.
