Heat-shrinkable tube insulated busbar: lightweight insulation solution for new energy high-voltage systems
Feb 14, 2025
Product Analysis: Core Structure of Heat Shrink Tube Insulated Busbar
Heat Shrink Tube Polyolefin Busbar is composed of conductive metal busbar (copper/aluminum) and high-performance heat shrink sleeve, which is tightly covered through heat shrink process. Its technical features include:
Conductive substrate: T2 copper or 6063 aluminum alloy, conductivity ≥98% IACS, supports 1000V-1500V high-voltage scenarios
Insulation layer: double-layer structure heat shrinkable tube (inner layer with high adhesion, outer layer with weather resistance), common materials include:
Polyolefin (PO): Working temperature -55℃~125℃, breakdown strength ≥25kV/mm
Fluorine rubber (FKM): resistant to high temperatures up to 200°C, passed UL 224 VW-1 flame retardant certification
Technical Advantages: Why Choose Heat Shrink Tube Insulation Solution?
Security protection upgrade
Heat Shrink Tubing BusBar is covered with 360° without dead corners, has a protection level of IP67, and can withstand salt spray, acid and alkali, and hot and humid environments (IEC 60068-2 standard)
Double-layer flame retardant structure design, passed UL 94 V-0 certification, effectively blocks the spread of arc
Lightweight and space optimization
The thickness of the insulation layer is only 0.5-2.0mm, which reduces the weight by 15%-20% compared with traditional solutions.
Foldable design adapts to CTP (Cell to Pack) battery pack, increasing space utilization by 12%
Quick installation and maintenance
The heat shrink process is easy to construct on site, and the heating shrinkage temperature range is 120℃-180℃
Application scenarios: Typical use cases in the new energy field
Power battery system
High-voltage series busbar insulation between modules (voltage range 400V-800V)
Battery management system (BMS) signal acquisition wire harness protection
Energy storage equipment
Containerized energy storage cabinet DC bus insulation
The connection end between PCS (converter) and battery cluster is waterproof and sealed
Charging infrastructure
Weather resistance protection of internal busbar of charging pile
Liquid cooling charging gun high voltage interface insulation
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