T/SGX 020-2024 New energy vehicle high voltage insulation busbar self-curling protective tube sleeve

Scope

Scope: This document specifies the terms and definitions, requirements, test methods, inspection rules, and marking, packaging, transportation, and storage for self-winding protective sleeves used on high-voltage insulated busbars of new energy vehicles. This document applies to the production and inspection of self-winding protective sleeves used on high-voltage insulated busbars of new energy vehicles with a temperature range of -40°C to +150°C. The warp yarn of the sleeve is made of polyester filament yarn, and the weft yarn is made of polyester single and filament yarns. The hem is made of polyester single yarn. Main technical contents: - Low-temperature flexibility samples without fracture - Long-term thermal aging samples without fracture - Temperature-humidity cycling samples without fracture or melting - Moisture-heat aging samples without fracture - Wear resistance: - Scratch resistance > 200,000 cycles - Drag resistance > 1,000,000 cycles - Flame retardancy: ≤ 100 mm/min - Impact resistance: no cracking in appearance, no short circuit between the wire shielding layer and the conductor, and normal power supply of the conductor - Fluid resistance: no fracture, whitening, discoloration, or dirtiness of the sample, and the color should be recognizable - Prohibited substances: - Lead, mercury, hexavalent chromium, polybrominated biphenyls (PBBs), and polybrominated diphenyl ethers (PBDEs) shall not exceed 0.1% by mass - Cadmium shall not exceed 0.01% by mass

Development Information

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