IEC60331-21 Fire Resistant H07V-U H05V-U NH-BV Cable Single Core Solid PVC Insulated Non-sheath Cable 450/750V

IEC60331-21 Fire Resistant H07V-U H05V-U NH-BV Cable Single Core Solid PVC Insulated Non-sheath Cable 450/750V

Fire Resistant PVC Insulated Single Core Solid Copper Conductor Cable.

It is suitable for applications with strict fire resistance requirements, such as fire protection systems, emergency lighting, evacuation signs, and alarm systems.

  • Fire alarm systems
  • Emergency lighting circuits
  • Fire pumps and fire fighting equipment
  • Smoke extraction fans
  • Evacuation systems in high-rise buildings, hospitals, airports, metro stations
  • Nuclear power plants and important industrial facilities

Standards Compliance:
Basic construction & electrical performance: IEC 60227/GB/T 5023.3
Flame retardant performance: IEC 60331-21 / GB/T 19666 (circuit integrity under fire condition)

Key Specifications:
Parameter Value
Voltage rating 450/750V
Insulation PVC(polyvinyl chloride)
Fire resistant layer Mica glass tape (wrapped over conductor)
Cross section range 1 / 1.5 / 2.5 / 4 / 6 / 10mm²
Insulation color Black, Brown, Yellow, Blue, Red, Green/Yellow, Green, White is also available.

Model and Parameters
Model Name Rated Voltage Normal area(mm2) Conductor Resistance rate Not more than at 20 centigrade
NHBV Copper Conductor, PVC Insulated, Fire Resistant Building Wire 450/750V 1.0 18.1
NHBV 450/750V 1.5 12.1
NHBV 450/750V 2.5 7.41
NHBV 450/750V 4 4.61
NHBV 450/750V 6 3.08
NHBV 450/750V 10 1.83

Length per roll: 100 meters

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Frequent Questions by Customers

You should consider the application (indoor/outdoor), voltage rating, current load, environmental conditions (temperature, moisture, chemicals), and local safety standards (like IEC or GB). If unsure, share your project details with us, and we’ll recommend the best solution.

Our cables are manufactured to meet major international standards including IEC, and comply with Chinese national standards (GB). Certifications are available upon request.

Yes. We offer full customization on cable length, conductor size, insulation material, jacket color, and packaging to meet your specific project or branding needs.

MOQ varies by product type. For standard cables, we have low MOQs; for custom orders, MOQs are flexible. Contact us with your requirements for details.

Standard orders usually take 7–15 working days. Custom orders take 15–30 working days, depending on specifications and quantity. Delivery time also depends on your location and shipping method.

We accept T/T (Telegraphic Transfer), L/C (Letter of Credit), and other terms by negotiation. Our standard terms are 30% deposit, 70% balance before shipment.

Every batch of cables goes through strict quality control, including raw material inspection, production process checks, and final performance testing (electrical, mechanical, and environmental tests). We can provide test reports for your order.

Yes, we provide free small samples for quality testing (you only cover the shipping cost). Bulk order samples can also be arranged based on your requirements.

Our cables come with a standard warranty against manufacturing defects. The warranty period varies by product type, usually 1–3 years under normal use conditions.

Just send us your requirements (cable type, specification, quantity, delivery destination), and our sales team will provide a detailed, no-obligation quote within 24 hours.

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