Hunan Shentong Optoelectronics Technology Co., Ltd.

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Electric power cable

Rated voltage 0.6/1kV PVC/XLPE insulated power cable

Featuring excellent electrical performance and chemical stability, these cables also boast advantages such as simple structure, lightweight design, ease of use, and the ability to be installed without limitations imposed by elevation differences. They are ideally suited for fixed installations on AC power distribution circuits operating at 50 Hz with rated voltages below 1 kV. Currently, they are widely used in urban power grids, mines, chemical plants, and other similar environments. Cross-linked polyethylene insulated cables are manufactured using a chemical process that transforms linear polyethylene molecules into a robust, three-dimensional network structure. This cross-linking significantly enhances the mechanical properties of polyethylene while preserving its outstanding electrical performance. Among these, the five-core power cable has been specifically designed to meet the evolving needs of distribution systems and improve safety. By separating the neutral and ground wires in low-voltage distribution systems, this cable type ensures more stable system operation and provides enhanced protection for personnel safety.

Keywords:

Shentong Optoelectric

Category:

Low-Voltage Power Cable

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+86 0731-22588811

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Product Description: Featuring excellent electrical performance and chemical stability, these cables also boast advantages such as simple construction, lightweight design, ease of use, and the ability to be installed without limitations on elevation differences. They are ideally suited for fixed installations in AC power distribution circuits operating at 50 Hz with rated voltages below 1 kV. Currently, they are widely used in urban power grids, mines, chemical plants, and other similar environments. Cross-linked polyethylene (XLPE) insulated cables are engineered by chemically transforming linear polyethylene molecules into a robust, three-dimensional network structure. This process significantly enhances the mechanical properties of polyethylene while preserving its outstanding electrical performance. Among these, the five-core power cable is specifically designed to meet the evolving needs of distribution systems, particularly in terms of safety and reliability. By separating the neutral and ground wires in low-voltage distribution systems, this type of cable helps ensure more stable system operation and safeguards the safety of personnel.

Execution Standard: GB/T 12706.1-2020

Usage characteristics:

Cable conductor long-term operating temperature: PVC does not exceed 70°C, XLPE does not exceed 90°C;

The maximum operating temperature of cable conductors during a short circuit: PVC does not exceed 160°C, while XLPE does not surpass 250°C (for a maximum duration of 5 seconds);

When laying cables, the minimum bending radius (where D is the cable's outer diameter) is as follows: - For single-core non-armored cables, it’s 20D; - For multi-core non-armored cables, it’s 15D; - For single-core armored cables, it’s 15D; - For multi-core armored cables, it’s 12D.

The ambient temperature for cable laying shall not be lower than 0°C.

Common models		Name	Usage
Copper core	Aluminum core	Name	Usage
VV	VLV	Copper-core (aluminum-core) PVC-insulated PVC-sheathed power cable	Cables laid indoors, in tunnels, and within conduits must not be subjected to pressure or external mechanical forces.
VY	VLY	Copper-core (aluminum-core) PVC-insulated polyethylene-sheathed power cable
VV22	VLV22	Copper-core (aluminum-core) PVC-insulated steel-tape armored PVC-sheathed power cable	Installed indoors, in tunnels, and within conduits, the cable can withstand external mechanical forces.
VY23	VLY23	Copper-core (aluminum-core) PVC-insulated steel-tape armored polyethylene-sheathed power cable
YJV	YJLV	Copper-core (aluminum-core) cross-linked polyethylene-insulated polyvinyl chloride-sheathed power cable	Cables laid indoors, in tunnels, and within conduits must not be subjected to pressure or external mechanical forces.
YJY	YJLY	Copper-core (aluminum-core) cross-linked polyethylene-insulated polyethylene-sheathed power cable
YJV22	YJLV22	Copper-core (aluminum-core) cross-linked polyethylene-insulated steel-tape armored PVC-sheathed power cable	Installed indoors, in tunnels, and within conduits, the cable can withstand external mechanical forces.
YJY23	YJLY23	Copper-core (aluminum-core) cross-linked polyethylene-insulated steel-tape armored polyethylene-sheathed power cable

Note:

1. There are flexible power cables, indicated by adding "R" after the sheath material type—for example, "VVR" denotes a copper-core PVC-insulated PVC-sheathed flexible power cable.

2. There are power cables available with temperature ratings of 90°C and 105°C; these are indicated by adding “-90” or “-105” after the model number. For example, VV-105 denotes a copper-core power cable with 105°C PVC insulation and a 105°C PVC jacket, where the conductor’s maximum operating temperature is 105°C.

3. Special cable models with rodent-proof, termite-proof, and moisture-resistant features are available; simply add "FSY" before the model number.

4. Single-core armored cables are intended for use only in DC systems; if employed in AC systems, they must feature an armor layer made of non-magnetic materials, with corresponding codes 62, 63, 72, and 73.

5. Aluminum-core fire-resistant cables are not recommended, as in the event of a fire, flame temperatures can soar to over 700°C. Given that aluminum has a melting point of only 660°C, the conductor may melt and become disconnected.

6. Available are flame-retardant and fire-resistant power cables. Flame-retardant cables are classified using the notation "Z" followed by "A," "B," or "C"—for example, "ZA," "ZB," or "ZC." Fire-resistant cables, meanwhile, are indicated by "ZN" with "A," "B," or "C" added in between—for instance, "ZAN," "ZBN," or "ZCN."