DC Voltage 1500V PVC Insulated (Flame-retardant, Fire-resistant) Power Cable

Product Overview DC 1500V PVC insulated power cable is designed specifically for DC power transmission and distribution systems, suitable for DC power supply circuits with a rated voltage of 1500V (maximum operating voltage up to 1800V). This product typically uses a single-core copper conductor structure. Compared with AC cables, the conductor has no skin effect or proximity effect, requiring no complex divided conductors, resulting in more uniform current distribution. This cable adds flame-retardant and fire-resistant properties to standard PVC insulated power cables, enabling it to maintain safe operation for a specified period under fire conditions, meeting GB/T 19666 general rules for flame-retardant and fire-resistant cables.

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Product Advantages
Product Specifications

Implementation Standards

Standard No.	Standard Name	Scope
GB/T 12706.1-2020	Extruded insulated power cables and accessories for rated voltages from 1kV to 35kV	General technical requirements for power cables
GB/T 19666	General rules for flame-retardant and fire-resistant cables	Flame-retardant and fire-resistant performance requirements
GB/T 3956	Cable conductors	Conductor structure and resistance requirements
GB/T 5023	PVC insulated cables for rated voltages up to 450/750V	PVC insulation material standard

Products can also be manufactured per IEC standards (e.g., IEC 60332 series) for export and special project requirements.

Product Structure

1. Conductor: High-quality oxygen-free copper rod drawn into copper conductors with excellent conductivity and low resistivity. Available in Class 1 (solid), Class 2 (stranded), or Class 5 (flexible, multi-strand) conductors.

2. Insulation: High-quality PVC compound extruded uniformly over the conductor.
- Heat rating: max conductor working temperature 70°C
- Insulation resistance constant >= 36.7 MOhm·km at 20°C
- Flame-retardant type uses flame-retardant PVC (ZR-PVC)

3. Filling and wrapping: Flame-retardant filling material between insulated cores; outer wrapping with flame-retardant tape.

4. Inner lining (armored type): PVC or alkali-free glass fiber tape winding.

5. Armoring (optional): Steel tape armoring (double galvanized steel tape) or steel wire armoring.

6. Outer sheath: Flame-retardant PVC sheath.

For fire-resistant cables, mica tape is wrapped between conductor and insulation to maintain circuit integrity when the outer insulation is burned.

Model Designation

Model	Description	Notes
ZR-VV	Copper core flame-retardant PVC insulated PVC sheathed power cable	Basic flame-retardant type
ZR-VV22	Copper core flame-retardant PVC insulated steel tape armored power cable	Flame-retardant with armoring
NH-VV	Copper core fire-resistant PVC insulated PVC sheathed power cable	Fire-resistant type
NH-VV22	Copper core fire-resistant PVC insulated steel tape armored power cable	Fire-resistant with armoring
ZR-VV-1.5kV DC	Copper core flame-retardant PVC insulated DC power cable	Specified DC application

Code meanings: ZR - Flame-retardant; NH - Fire-resistant; V - PVC insulation; V - PVC sheath; 22 - Steel tape armored PVC sheath.

Main Technical Parameters

Rated voltage: DC 1500V; Maximum operating voltage: 1800V.

Conductor DC resistance (20°C) - selected values:
- 10 mm²: <= 1.83 Ohm/km
- 50 mm²: <= 0.387 Ohm/km
- 120 mm²: <= 0.153 Ohm/km
- 240 mm²: <= 0.0754 Ohm/km
- 500 mm²: <= 0.0366 Ohm/km

Temperature characteristics:
- Max long-term conductor temperature: 70°C
- Short-circuit temperature (<=5s): 160°C (section <= 300 mm²) / 140°C (> 300 mm²)
- Minimum laying temperature: 0°C (preheat if below)

Bending radius: Non-armored >= 6D; armored >= 12D (D = cable OD)

Flame-retardant performance: Single vertical burning per GB/T 18380.12; bundled burning Grades A, B, C per GB/T 18380.33-35. Char height <= 2.5m (Grade A).

Fire-resistant performance: 750°C to 800°C for 90 min continuous power supply under rated voltage.

Application Areas

- Urban rail transit: Metro and light rail DC traction power supply
- Photovoltaic systems: DC side connections in solar power plants
- Energy storage systems: Battery module interconnections
- Industrial and commercial DC distribution
- Fire and emergency power supply systems (fire-resistant type)

Model	Voltage level	Specification (number of cores x cross-sectional area)	Execution standard	Manufacturing branch
V(L)V62、V(L)V72 V(L)V63、V(L)V73	DC1500V	1×4～1×800	Q/320481SS563-2023	50mm² and below control cable factory Low voltage cable factory with an area of over 50mm²
V(L)V22 V(L)V32 V(L)V23 V(L)V33		2×1.5～2×300、3×1.5～3×300、 4×1.5～4×400、5×2.5～5×300、 3×2.5+1×1.5～3×400+1×185、 3×2.5+2×1.5～3×400+2×185、 4×2.5+1×1.5～4×400+1×185		6mm² and below control cable factory Low voltage cable factory with an area of 6mm² or more
V(L)V V(L)Y VRV VRY		1×1.5～1×800、 (Among them, the five types of conductors have specifications ranging from 1 × 1.5 to 1 × 630)		50mm² and below control cable factory Low voltage cable factory with an area of over 50mm²
V(L)V V(L)Y VRV VRY		2×1.5～2×300、3×1.5～3×300 4×2.5～4×400、 3×2.5+1×1.5～3×400+1×185 5×2.5～5*400、 3×2.5+2×1.5～3×400+2×185、 4×2.5+1×1.5～4×400+1×185		6mm² and below control cable factory Low voltage cable factory with an area of 6mm² or more
Z-V(L)V62 Z-V(L)V72	DC1500V	1×4～1×800	Q/320481SS563-2023	50mm² and below control cable factory Low voltage cable factory with an area of over 50mm²
Z-V(L)V22 Z-V(L)V32 Z-V(L)V23 Z-V(L)V33		2×1.5～2×300、3×1.5～3×300、 4×1.5～4×400、5×2.5～5×300、 3×2.5+1×1.5～3×400+1×185、 3×2.5+2×1.5～3×400+2×185、 4×2.5+1×1.5～4×400+1×185		6mm² and below control cable factory Low voltage cable factory with an area of 6mm² or more
Z-V(L)V Z-V(L)Y Z-VRV Z-VRY		1×1.5～1×800 (Among them, the five types of conductors have specifications ranging from 1 × 1.5 to 1 × 630)		50mm² and below control cable factory Low voltage cable factory with an area of over 50mm²
Z-V(L)V Z-V(L)Y Z-VRV Z-VRY		2×1.5～2×300 3×1.5～3×300 4×2.5～4×400 3×2.5+1×1.5～3×400+1×185 5×2.5～5*400、 3×2.5+2×1.5～3×400+2×185、 4×2.5+1×1.5～4×400+1×185		6mm² and below control cable factory Low voltage cable factory with an area of 6mm² or more
(Z)N-VV62 (Z)N-VV72	DC1500V	1×4～1×800	Q/320481SS563-2023	50mm² and below control cable factory Low voltage cable factory with an area of over 50mm²
(Z)N-VV22 (Z)N-VV32 (Z)N-VV23 (Z)N-VV33	DC1500V	2×1.5～2×300、3×1.5～3×300、 4×1.5～4×400、5×2.5～5×300、 3×2.5+1×1.5～3×400+1×185、 3×2.5+2×1.5～3×400+2×185、 4×2.5+1×1.5～4×400+1×185	Q/320481SS563-2023	6mm² and below control cable factory Low voltage cable factory with an area of 6mm² or more
(Z)N-V(L)V (Z)N-V(L)Y (Z)N-VRV (Z)N-VRY	DC1500V	1×1.5～1×800 (Among them, the five types of conductors have specifications ranging from 1 × 1.5 to 1 × 630)	Q/320481SS563-2023	50mm² and below control cable factory Low voltage cable factory with an area of over 50mm²
(Z)N-V(L)V (Z)N-V(L)Y (Z)N-VRV (Z)N-VRY	DC1500V	2×1.5～2×300、3×1.5～3×300 4×2.5～4×400、 3×2.5+1×1.5～3×400+1×185 5×2.5～5*400、 3×2.5+2×1.5～3×400+2×185、 4×2.5+1×1.5～4×400+1×185	Q/320481SS563-2023	6mm² and below control cable factory Low voltage cable factory with an area of 6mm² or more

ABOUT US

Hixon (Changzhou) Science and Technology Innovation Investment Co., Ltd. is located in Changzhou, Jiangsu, China. It is a comprehensive trading company specializing in the export of industrial products. With years of international trade experience, the company has established strong channel resources and project collaboration experience in the African market.
By integrating high-quality manufacturing resources with a well-established supply chain, we provide reliable product supply and professional trade services to global customers, aiming to become an important bridge connecting Chinese manufacturing to the global market.

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