Fire Rated Instrumentation Cable

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Fire Rated Instrumentation Cables are designed to ensure the continuous transmission of signals and power during fire emergencies. They are made with advanced fire-resistant materials to maintain circuit integrity under extreme conditions, providing reliable performance in critical control and monitoring systems. These cables are ideal for use in safety systems, fire detection, emergency lighting, and power control circuits where fire safety and signal stability are essential.

Details

1. Construction

• Conductor: Stranded copper or tinned copper
• Insulation: Mica tape + XLPE / PVC / LSZH
• Pairing: Twisted pairs or triads
• Shielding (optional): Aluminum foil + drain wire / Copper braid
• Sheath: PVC / LSZH / Flame-retardant PVC
• Armor (optional): Steel tape or wire armor for mechanical protection
• Core Identification: Color coded or numbered for easy installation

2. Key Features

• Maintains circuit integrity during fire (up to 950°C / 3 hours)
• Low smoke, zero halogen (LSZH option available)
• Excellent resistance to flame, oil, acid, and chemicals
• High signal stability with low transmission loss
• Strong mechanical protection and flexibility
• Compliant with fire performance and safety standards

3. Technical Parameters

Item	Specification
Rated Voltage	450/750V
Test Voltage	2000V/5min
Operating Temperature	–30°C to +90°C (normal), up to +950°C in fire
Insulation Resistance	≥ 100 MΩ·km
Bending Radius	≥ 10× outer diameter
Fire Resistance	IEC 60331

4.Typical Models

Model	Name	Features
WDZN-KYJY	Low-smoke, halogen-free, fire-resistant cable	Copper conductor + fire-resistant layer + cross-linked polyethylene insulation + low-smoke, halogen-free sheath
WDZN-KYJYR	Low-smoke, halogen-free, flame-retardant flexible cable	Soft-core copper conductor + fire-resistant layer + cross-linked polyethylene insulation + low-smoke, halogen-free sheath
WDZN-KYJYP	Low-smoke, halogen-free, fire-resistant shielded cable	Copper conductor + fire-resistant layer + cross-linked polyethylene insulation + copper mesh shielding + low-smoke, halogen-free sheath
WDZN-KYJYP2	Low-smoke, halogen-free, fire-resistant shielded cable	Copper conductor + fire-resistant layer + cross-linked polyethylene insulation + copper tape shielding + low-smoke, zero-halogen sheath

5. Standards

• IEC 60331, BS 6387 CWZ, IEC 60332-3, IEC 60754, IEC 61034
• RoHS / REACH / CE Certified

6. Applications

Widely used in:
• Fire alarm systems and emergency circuits
• Power plants and refineries
• Control and instrumentation systems
• Petrochemical and offshore industries
• Tunnels, subways, and high-rise buildings

7. Packaging & Delivery

• Standard export wooden or steel reels
• Delivery length: 100m / 500m / 1000m or customized
• OEM branding and special specifications available upon request

FAQ

1. What is a Fire Rated Instrumentation Cable?

A cable designed to maintain signal integrity during a fire, ensuring accurate operation of instrumentation and control systems in critical environments.

2. Where is it commonly used?

Used in industrial plants, process control systems, emergency circuits, fire alarm systems, and high-risk environments where fire safety is crucial.

3. What are its main construction features?

Copper conductors

Fire-resistant insulation (such as XLPE, mica, or silicone)

Optional shielding for signal protection

Outer sheath designed for fire resistance and durability

4. What are the benefits of fire rated instrumentation cables?

Maintains signal transmission during fire

Reduces risk of control system failure

Provides mechanical protection and durability

Often low smoke, halogen-free, safe for people and equipment

Instrumentation Cable