PTYV铁路信号电缆产品介绍（中文）
PTYV铁路信号电缆是专为轨道交通信号传输系统设计的高性能通信电缆，广泛应用于铁路、地铁、轻轨等交通领域的信号控制、通信传输及自动化设备连接。该产品采用多层屏蔽结构和优质材料，确保信号传输的稳定性和抗干扰能力，满足复杂电磁环境下的长期使用需求。
产品采用无氧铜导体材料，导电性能优异，有效降低信号衰减。导体外层采用高密度聚乙烯绝缘材料，具备良好的耐温性和电气绝缘特性。屏蔽层采用铝塑复合带与镀锡铜丝编织双重屏蔽结构，可有效隔离外界电磁干扰，保障信号传输的精准度。外护套选用阻燃型聚氯乙烯材料，不仅具备优异的耐磨、耐油、耐腐蚀性能，同时符合轨道交通领域的防火安全要求。
该电缆在-40℃至+70℃的宽温域范围内保持稳定工作状态，适应我国南北地区不同气候条件。特殊设计的柔韧性结构使电缆更易于现场铺设，尤其在隧道、站台等空间受限区域展现出色安装适应性。产品支持长期弯曲使用，抗拉伸强度达到行业领先水平。经过严格的老化测试验证，其使用寿命可达25年以上。
PTYV电缆主要应用于轨道信号机、道岔控制装置、列车自动防护系统（ATP）、联锁系统等关键设备间的信号传输。在高铁建设、城市轨道交通改造、铁路电气化升级等项目中均有成功应用案例。产品严格执行轨道交通行业规范，确保与信号设备的高度兼容性。
PTYV Railway Signal Cable Product Introduction (English)
PTYV railway signal cable is a high-performance communication cable specifically designed for rail transit signal transmission systems. It is widely used in railway signaling control, communication transmission, and automated equipment connection for railways, subways, and light rail systems. Featuring multi-layer shielding structure and premium materials, this product ensures stable signal transmission and excellent anti-interference capability, suitable for long-term operation in complex electromagnetic environments.
The cable utilizes oxygen-free copper conductors with outstanding conductivity to minimize signal attenuation. The conductor insulation layer employs high-density polyethylene material, providing excellent temperature resistance and electrical insulation properties. A dual shielding structure combining aluminum-polyester composite tape and tinned copper braiding effectively isolates external electromagnetic interference, ensuring signal transmission accuracy. The outer sheath is made of flame-retardant PVC material, offering superior abrasion resistance, oil resistance, and corrosion protection while meeting fire safety requirements for rail transit applications.
Maintaining stable performance within a wide temperature range of -40℃ to +70℃, the cable adapts to diverse climatic conditions across different regions in China. Its specially designed flexible structure facilitates installation in confined spaces such as tunnels and platforms. The cable demonstrates exceptional bending durability and tensile strength, with accelerated aging tests verifying a service life exceeding 25 years.
PTYV cable is primarily used for signal transmission between critical equipment including track signal machines, switch control devices, Automatic Train Protection (ATP) systems, and interlocking systems. It has been successfully implemented in high-speed rail projects, urban rail transit upgrades, and railway electrification modernization programs. The product strictly complies with rail industry specifications, ensuring seamless compatibility with various signaling equipment.
