T/GDWCA 0026-2018 Rated voltage 0.6-1kV flame-retardant high-performance fire-resistant power cable

Scope

Scope: This standard specifies the terms and definitions, product model designation methods, requirements, test methods, inspection rules, marking, packaging, storage, and transportation for high-performance fire-resistant power cables with a rated voltage of 0.61 kV. This standard applies to AC rated power cables with a voltage of 0.6/1 kV used in civil buildings, which have flame retardant and fire-resistant properties and long service life. This standard does not apply to power cables used in special environments such as high temperatures, high corrosion, and high radiation. Main technical contents: 1. The conductor shall be annealed copper wire, and the single wires in the conductor may not be tin-plated or tin-coated. 2. For fixed installation power cables, the conductor shall adopt the first type of round solid conductor or the second type of round stranded conductor specified in GB/T 3956-2008. 3. The conductor resistance of the product at 20°C shall comply with the relevant requirements of GB/T 3956-2008. 4. The technical performance of the fire-resistant mica tape used in the product shall comply with the provisions of Appendix C of GB/T 19666-2005. 5. The fire-resistant layer shall be wrapped with double-layer overlapping, and the overlapping rate shall not be less than 50% of the width of the mica tape. The wrapping shall be tight, smooth, and evenly spaced. 6. The insulation shall be made of cross-linked halogen-free low-smoke flame-retardant polyolefin materials, etc.

Development Information

Related Standards