Description

Technical Parameters

Control signals must remain active in an emergency

During a fire, control signals are essential. Fire pumps must start. Smoke extraction systems must operate. Emergency lighting must activate.

Our Fire resistant control cable is designed to ensure these critical signals continue to function under fire conditions. Mica tape is applied around each conductor. This mica insulation layer is highly heat-resistant and, at temperatures up to 800°C, forms a ceramic-like protective barrier that maintains conductor isolation and circuit integrity.

Even if the outer sheath is destroyed by fire, the internal circuit can continue to operate for a defined period.

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Multi-core design for multiple signals

This cable features a multi-core structure, allowing multiple control signals to be transmitted within a single cable.

It supports transmission of start/stop commands, status signals, and feedback circuits in one installation, improving wiring efficiency and system organization.

The conductor uses high-purity oxygen-free copper, ensuring stable conductivity under normal operating conditions.

The outer jacket is flame-retardant PVC, which helps prevent flame propagation during non-fire conditions.

Optional configurations include:

Shielded version: tinned copper braid with ≥85% coverage for EMI protection
Armored version: steel tape armor for enhanced mechanical protection in buried or outdoor installations

Built to fire safety standards

We manufacture this cable in accordance with GB/T 9330 and GB/T 19216 standards. It is certified to CE and RoHS requirements.

The mica tape wrapping process is strictly controlled to ensure uniform coverage, tension, and overlap. Each production batch undergoes fire resistance sampling tests before shipment.

Common models such as NH-KVV, NH-KVVP, NH-KVVR, NH-KVVRP, and NH-KVV22 are available in stock.

For export projects, we provide full fire test reports and complete customs documentation. Moisture-proof and impact-resistant packaging is used for international transportation.

Key Specifications

Parameter	Specification
Common Models	NH-KVV, NH-KVVP, NH-KVVR, NH-KVVRP, NH-KVV22
Conductor	High-purity oxygen-free copper (solid / stranded)
Fire Resistant Layer	Multi-layer mica tape
Fire Resistance Standard	IEC 60331, GB/T 19216 compliant
Rated Voltage	300/500V

Frequently Asked Questions

Q: Are fire resistant cables the same as flame retardant cables?

A: No, they serve different purposes.
Flame retardant cables are designed to prevent fire from spreading. They self-extinguish once the flame source is removed, but the circuit will stop functioning once exposed to fire.
Fire resistant cables are designed to maintain circuit integrity during a fire. Even if the outer jacket burns, the mica tape layer preserves insulation and allows power or signals to continue operating for a specified time.
In summary:
Flame retardant = stops fire spread
Fire resistant = keeps circuits operating during fire
Fire safety systems must use fire resistant cables.

Q: What happens if there is a quality issue during the warranty period?

A: We provide a 12-month warranty from the date of delivery.
If any quality issue occurs-such as mica tape defects, insulation failure, or conductor damage-we provide repair, replacement, or return solutions depending on the situation.
We respond to urgent issues within 24 hours and provide a formal solution within 3 working days. Each production batch is strictly tested, including fire resistance sampling before shipment.

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Fire Resistant Control Cable

Key Specifications

Frequently Asked Questions