NH-VV Fire-Resistant PVC Power Cable 0.6/1kV for Critical Circuits

Ensure the continuous operation of critical systems during critical moments. NH-VV is a fire-resistant low-voltage PVC power cable designed for fixed wiring where the integrity of circuits requiring emergency loads, building safety systems, and critical power distribution needs to be guaranteed.

NH-VV is a low-voltage copper core power cable with PVC insulation and a PVC outer sheath, manufactured with a fire-resistant structure. It maintains electrical continuity for a period of time under fire conditions (performance depends on required standards and test categories). It is widely used in emergency lighting, fire pumps, smoke extraction systems, alarm systems, evacuation systems, and other life-safety circuits that must remain operational during a fire. Compared to standard VV cables, NH-VV cables are suitable for applications where project specifications require fire resistance, not just flame retardancy.

• Typical Rated Voltage: 0.6/1 kV
• Applications: Fixed low-voltage power supply and control distribution
• Project Notes: Must meet the fire resistance test requirements specified in the Bill of Quantities (BOQ)

• Emergency lighting and evacuation guidance circuits
• Power supply for fire alarm, detection, and notification systems
• Fire pumps, sprinkler control systems, and critical machinery
• Power supply for smoke exhaust and booster fans
• Critical building equipment in public utilities and high-occupancy buildings
• Industrial sites requiring uninterrupted power supply for emergency shutdown and safety systems

• Cable trays, conduits, risers, shafts, and protective wiring within buildings
• Fixed installation only

• 1C for single-core feeders and dedicated circuits
• 2C for single-phase power supplies
• 3C for three-phase circuits without a neutral (specific design depends on the situation)
• 4C for three-phase distribution with a neutral
• 5C For three-phase systems with neutral and PE (specific design depends on the situation)

1.5, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 95, 120, 150, 185, 240

• 2C x 1.5, 2C x 2.5, 2C x 4
• 3C x 2.5, 3C x 4, 3C x 6
• 4C x 10, 4C x 16, 4C x 25, 4C x 35
• 5C x 10, 5C x 16, 5C x 25

• Fire-resistant circuit integrity for critical loads

  Utilizing an NH fire-resistant structure, it can maintain power supply to critical systems in the event of a fire, meeting building safety requirements.

• PVC/PVC structure, an economical and efficient fixed cabling solution

  PVC insulation and sheathing provide a practical and widely applicable structure for low-voltage power distribution and installation.

• A reliable choice for public and commercial buildings

  Commonly used in densely populated areas and projects with stringent safety requirements.

• Facilitates Contractor and EPC Procurement

  Universal sizes, predictable construction processes, and multiple documentation options support Bill of Quantities (BOQ) compliance and phased delivery.

• Conductor: Copper stranded wire
• Insulation: PVC
• Fire-resistant layer: Fire-resistant design based on required test categories (project specifications)
• Outer Sheath: PVC
• Installation Type: Fixed cabling and distribution circuits

1. Copper Conductor Preparation

   Copper is drawn and stranded to meet resistance targets and stable termination performance.

2. Insulation Extrusion

   The PVC insulation layer is extruded with controlled thickness and concentricity to ensure consistent dielectric properties.

3. Fire-resistant Component Integration

   Fire-resistant structural components are used to support the integrity of the circuit under fire-resistant testing conditions, according to project standards.

4. Sheathing and Marking

   A PVC sheath is extruded to protect the internal structure and then marked for traceability and project control.

5. Routine Inspections

   Typical inspections include conductor resistance, insulation thickness verification, spark testing, voltage testing, dimensional inspection, and sheath integrity checks.

1. Select NH-VV when your bill of quantities requires fire resistance and circuit integrity for critical systems.
2. Please confirm the required fire resistance test category and duration in the project documents.
3. Select the number of core wires and cross-sectional area based on load current, spacing, grouping method, ambient temperature, and allowable voltage drop.
4. If the project also requires Low Smoke Halogen-Free (LSZH), please specify the use of LSZH fire-resistant material instead of PVC sheath.

• Product: NH-VV
• Voltage: 0.6/1 kV
• Fire Resistance Requirements and Duration: __
• Standard Requirements: __
• Core Wire Configuration: __
• Cross-section and Quantity: __
• Total Length: __ meters
• Installation Path: Conduit/Trough/Riser/Shaft/Protective Path
• Destination Country and Port: __
• Trade Terms: __
• Packaging: Reel/Roll
• Required Documents: __
• Remarks: Marking language, delivery schedule, inspection requirements

• Q1 What is the purpose of NH-VV?

  A: NH-VV is used in critical low-voltage circuits that must maintain power supply in the event of a fire, such as emergency lighting, alarms, smoke extraction, and fire pumps.

• Q2 Is NH-VV the same as flame-retardant cable?

  A: No. Flame-retardant cables focus on limiting the spread of flames, while fire-resistant cables focus on maintaining circuit integrity in the event of a fire. NH indicates the fire resistance requirement.

• Q3 What is the typical rated voltage?

  A NH-VV is typically used as a 0.6/1kV low-voltage power cable for fixed installations.

• Q4 What are the commonly used cable specifications for building safety systems?

  A Emergency lighting and control power supplies typically use 1.5 to 10 mm² cables, while feeders for large safety equipment typically use 16 to 70 mm² cables, depending on the load and distance.

• Q5 What information is needed for a quick quote?

  A Fire resistance duration/rating, standard, conductor configuration, specification sheet, total length (meters), installation route, destination, and packaging requirements.

• Q6 Can NH-VV be used in underground conduits?

  A Primarily for building wiring. Underground use depends on wiring protection measures and local regulations. For situations with underground mechanical risks, consider using armored cables if necessary.

• Over Productions Service:

  JinHong has a wide range of cable and conductor products for you to choose from. We will provide caring services and professional project solutions for everyone who needs them.

• Quality Certification Services:

  JinHong cable products are manufactured according to GB, IEC, BS, NFC, ASTM, DIN, and other international standards. Our technical team can customize cable products that meet your requirements according to your needs.

• Profession Customer Service:

  JinHong provides free professional consulting services to provide you with one-stop project solution services and rapid product delivery solutions.

• Delivery And Shipping Services:

  While we at JinHong provide high-quality cables, we also provide good delivery solutions. While ensuring the safe delivery of products, we provide the best packaging and transportation solutions, greatly reducing customers’ transportation costs.

• Packaging of JinHong:

  JinHong cable packaging is provided in the form of wooden reels, corrugated boxes, and coils. The cable ends are sealed with BOPP self-adhesive tape and a non-hygroscopic sealing cap to protect the cable ends from moisture. We can print the required marks on the outside of the barrel with waterproof material according to customer requirements.