Large Pair Count Cables - APAC Cable (Guangzhou) Co., Ltd.

Large Pair Count Cables

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Indoor Large Pair Cables

Indoor multi-pair telephone cable: types HYV, HYSVP, HPYV, HPYV22, etc. In the type code, H stands for local (urban) telecommunication cable, J for crosslinked polyethylene (XLPE) insulation, V for PVC jacket, and VP for copper wire braid shielding. Typical parameters: nominal conductor diameter 0.4-0.6 mm, commonly 10-2000 pairs; DC resistance of the 0.5 mm conductor ≤ 95 Ω/km at 20 °C; insulation resistance ≥ 1000 MΩ·km; operating temperature -20 °C to +60 °C. The cable suits office buildings and data centers, and can be used for vertical riser cabling, horizontal floor communication links and equipment interconnection in equipment rooms, supporting voice and low-speed data transmission. It suits installation in indoor cable trays and conduits.

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Outdoor Large Pair Cables

The core models of outdoor multi-pair cable include HYA, HYAT, HYAC and HYAT53. In the type code, H stands for local (urban) telecommunication cable, Y for polyethylene insulation, A for aluminum-plastic sheath, T for petroleum jelly (flooding compound) filling, C for self-supporting construction, and 53 for steel tape armor. Conductor diameter is 0.4-0.9 mm with 5-3000 pairs; at 20 °C, resistance of the 0.4 mm conductor is ≤ 148 Ω/km and insulation resistance ≥ 3000 MΩ·km, with an operating temperature of -30 °C to +60 °C. The cable suits urban backbone communication networks, township and rural lines, and outdoor campus cabling. It supports direct burial, aerial and duct installation, and is suited to voice and low-speed data transmission in complex outdoor environments.

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Filled Large Pair Cables

Flooded (jelly-filled) multi-pair cable types: HYAT, HYAT23, HYAT53, etc. The petroleum jelly filling fills the internal gaps of the cable to form an airtight, moisture-sealed barrier that keeps out water and dampness. Typical parameters: conductor diameter 0.4-0.9 mm; at 20 °C, conductor resistance ≤ 95 Ω/km (0.5 mm²) and insulation resistance ≥ 3000 MΩ·km; operating temperature -30 °C to +60 °C. The cable is mainly used in communication networks such as urban telephone lines and LAN cabling, and is also suitable for industrial scenarios such as coal mines and power utilities. It can be installed in ducts, by direct burial or aerially.

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Direct-Buried Pair Cables

Outdoor direct-burial multi-pair cable: in types WDZB-HYA22, HYA23, HYA53, HYAT22, HYAT23 and HYAT53, H stands for local (urban) telecommunication cable, Y for polyethylene insulation, A for aluminum-plastic composite sheath, and 53 for steel-plastic tape armored PE jacket. Conductor diameter is 0.32-0.8 mm with 10-1000 pairs; at 20 °C, DC resistance of the 0.5 mm conductor is ≤ 95 Ω/km and insulation resistance ≥ 10000 MΩ·km, with an operating temperature of -30 °C to +60 °C. The cable suits telecommunications lines with demanding crush resistance requirements, and can be directly buried, installed aerially or in ducts. It is especially suitable for harsh environments prone to mechanical damage and corrosion.

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Self-Supporting Pair Cables

Self-supporting multi-pair cable: HYAC and HYYC. The self-supporting design embeds multi-strand galvanized steel wire as a messenger inside the cable, allowing aerial installation without additional support and simplifying construction. In the type code, H stands for local (urban) telecommunication cable, Y for polyethylene insulation, A for aluminum-plastic composite sheath, and C for self-supporting construction. Conductor diameter is available in various sizes such as 0.4-0.9 mm; at 20 °C, DC resistance of the 0.5 mm² conductor is ≤ 95 Ω/km and insulation resistance ≥ 3000 MΩ·km, with an operating temperature of -30 °C to +60 °C. The cable is mainly used for communication backbones in towns and villages, cabling in large parks and campuses, and urban-rural fringe areas, and is suited to aerial installation.

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