T/SGX 015-2022 Active

Scope: This document specifies the usage conditions, product models, requirements, inspection methods, inspection rules, marking, packaging, transportation, and storage of self-winding textile protective sleeves for wiring harnesses in the new energy automotive industry. This document applies to the production and inspection of self-winding textile protective sleeves for wiring harnesses in the new energy automotive industry, which are made of polyester monofilament and multifilament materials. Main technical content: 5.1.1 When used for high-voltage wiring harnesses, the appearance color of the sleeve is orange; when used for low-voltage wiring harnesses, the appearance color of the sleeve is black. 5.1.2 The inner and outer surfaces of the sleeve should be smooth, without sharp edges, burrs, welding marks, or surface protrusions, to avoid damaging cables and harming installation and use personnel. There should be no looseness of the weft, and no traces of dirt or stains. 5.1.3 The cut edges of the sleeve should be smooth, without burrs or frayed edges. Product requirements: - Low softness and toughness, no cracking, or obvious appearance defects after long-term heat aging. - No cracking or obvious appearance defects after short-term heat aging, and the color should be recognizable. - Wear resistance ≥ 2000 times. - Flame retardancy: V0 flame retardant grade for high-voltage wiring harnesses; combustion rate less than 102mm/min for low-voltage wiring harnesses. - Resistance to humidity and heat aging: no cracking, whitening, dirt, or stains, and the color should be recognizable. - Resistance to liquids: no cracking, whitening, discoloration, or stains, and the color should be recognizable. - The mass fractions of prohibited substances such as lead, mercury, hexavalent chromium, polybrominated biphenyls (PBBs), and polybrominated diphenyl ethers (PBDEs) shall not exceed 0.1%, and the mass fraction of cadmium shall not exceed 0.01%.