Jiaxing Doublewin Cable Co., Ltd. is one of the most reliable manufacturers and suppliers of shielded fire alarm cable in China. If you're going to wholesale bulk shielded fire alarm cable made in China, welcome to get pricelist and free sample from our factory. All customized cables are with high quality and competitive price.
Shielded fire alarm cable is a multi-conductor fire alarm cable wrapped in a metallic shield - aluminium foil, tinned copper braid, or both - to protect fire alarm signals from electromagnetic interference (EMI) and radio-frequency interference (RFI). A tinned copper drain wire provides an easy ground path. It is essential in commercial and industrial buildings where fire alarm loops run near mains wiring, emergency lighting, fire pumps, HVAC motors, VSDs or radio equipment. Available in 2 to 24 cores with LSZH jacket and CPR EN 50575 fire performance. As a shielded fire alarm cable manufacturer, Jiaxing Doublewin Cable Co., Ltd produces this cable in-house in Haiyan, Zhejiang, China and supplies it in bulk worldwide.
✓ Core count (2–24 or custom)
✓ Shielding: foil, braid or foil+braid
✓ Conductor colour codes (BS EN or custom)
✓ Jacket material: LSZH or PVC; jacket colour (red, white, orange)
✓Brand marking & sequential metre marking
✓Reel / box packaging (305 m / 1000 ft standard)
Full Technical Specifications
Produced in our Haiyan, Zhejiang plant following ISO 9001:2015 quality standards. We offer flexible customisation for jacket materials and sheath colours to match your project needs.
| Product Name | Shielded Fire Alarm Cable | ||
|---|---|---|---|
|
PH30 / PH60 / PH120 per EN 50200; IEC 60331; BS 6387 CWZ | ||
| CPR EN 50575 Class | Cca(standard); B2ca (on request) | ||
| Core Counts | 2, 4, 6 - 24 core | ||
| Conductor Sizes | 2/4/6-24 *0.8mm²/1.0mm²/1.5mm²/2.5mm² | ||
| Conductor Material | Stranded/ Solid bare copper | ||
| Insulation Color | Red/Black (2-core); BS EN colour code for multi-core | ||
| Insulation Material | PVC or LSZH | ||
| Wrap | Mica tape | ||
| Shielding | Aluminium/polyester foil + tinned Cu drain wire (F/UTP) · tinned Cu braid (S/UTP) · foil + braid (SF/UTP) | ||
| Shielding Coverage | Foil: 100% · Braid: min 85% | ||
| Drain Wire | Tinned copper | ||
| Jacket color | Red (standard); white, orange, custom on request | ||
| Jacket Material | PVC or LSZH,flame retardant | ||
| Rated Voltage | 300/300 V | ||
| Temperature Range | -15°C to +70°C (PVC); up to +90°C (LSZH) | ||
| Compliance | EN 50200, IEC 60331, BS6387 CPR EN 50575, CE, RoHS | ||
| Packing | 100 m / 305 m (1000 ft) / 500 m per reel or box |
Shielded Fire Alarm Cable Technical Data
| Number of Cores | Nominal cross section Conductor (mm²) | Nominal jacket outer diameter(mm) | Cable Weight(kg/km) | Conductor resistance at 20°C(Ohm/km) |
| 2 |
0.8 |
5.7 | 47.5 | 23.8 |
| 2 | 1.0 | 6.1 | 52 | 19.5 |
| 2 | 1.5 | 7.1 | 70 | 13.3 |
| 2 | 2.5 | 8.3 | 98.5 | 7.98 |
| 4 | 0.8 | 6.7 | 76.5 | 23.8 |
| 4 | 1.0 | 7.2 | 85.6 | 19.5 |
| 4 | 1.5 | 8.1 | 116 | 13.3 |
| 4 | 2.5 | 10.4 | 185 | 7.98 |
Our Fire Alarm cable Display
Why Shielded Fire Alarm Cable Prevents False Alarms & Signal Loss
Fire alarm systems use a small set of standard core counts because every device has predictable wiring needs. 2/4/6 core fire alarm cable covers virtually all fire detection and notification devices - from a simple 2-wire addressable loop to a 6-core sounder-beacon combination. Using standard core counts simplifies installation, reduces inventory and ensures colour-coded consistency across a project.
EMI / RFI Protection
Prevents false alarms from mains, motors, VSDs and radio noise.
01
Clean Loop Data
Stable addressable loop communication without data corruption.
02
Foil & Braid Options
Aluminium foil (100% coverage) or tinned copper braid (~85%).
03
Drain Wire Included
Tinned copper drain wire for single-point grounding.
04
When to Use Shielded Fire Alarm Cable - Environment Decision Guide
Not every fire alarm installation needs shielding. Use this guide to decide whether a shielded fire alarm cable is required for your project:
| Environment / Condition | EMI Risk | Shielded Recommended? | Reason |
| Residential / small office | Low | Optional | Quiet environment; unshielded usually sufficient. |
| Near mains wiring (≥ 50mm) | Medium | Yes | 50/60 Hz hum can cause false alarms. |
| Near emergency lighting ballasts | High | Yes | Fluorescent/LED ballasts emit strong EMI. |
| Near fire pump / HVAC motors | High | Yes | Motor start-up transients disrupt loop data. |
| Near VSD / inverter drives | High | Yes (foil+braid) | High-frequency switching noise; use SF/UTP. |
| Near radio / telecom equipment | High | Yes | RFI can corrupt addressable loop data. |
| Industrial plant / factory | Very High | Yes (foil+braid) | Multiple noise sources; maximum shielding needed. |
| Hospital / data centre | Medium-High | Yes | Critical life safety; signal integrity essential. |
Shield Type & Fire Rating Combination Matrix
Shielded fire alarm cable combines EMI shielding with fire-safety performance. This matrix helps you match the right shield type to your fire rating needs - whether you need a standard foil shielded fire alarm cable for general commercial use, a braided shield fire alarm cable for high-RFI environments, or a combination with mica tape for circuit integrity.
| Shield Type | Jacket Option | Fire Performance | Best For | ||
| Foil (F/UTP) | LSZH | CPR Cca/Dca | General commercial, addressable loops | ||
| Braid (S/UTP) | LSZH | CPR Cca/Dca | Flexible runs, high RFI environment | ||
|
LSZH | CPR Cca/B2ca | Industrial, VSD, extreme EMI | ||
| Foil + Mica Tape | LSZH | CPR + EN 50200 PH30 | Fire-rated + shielded for critical circuits | ||
| Foil (F/UTP) | PVC | CPR Eca/Dca | Cost-sensitive commercial, low smoke requirement |
Shielding Does Not Replace Fire Rating
A shielded cable is not automatically fire-rated. The shield protects against EMI; the jacket material (LSZH) and any fire barrier (mica tape) provide fire performance. For life-safety circuits that need both EMI protection and circuit integrity, specify foil shield + mica tape + LSZH jacket.
Quality Control & Testing
Every reel is 100% tested before shipment. For shielded fire alarm cable, we test conductor resistance per IEC 60228 on every core, insulation resistance between every pair of cores, high-voltage withstand between cores and sheath, and shield continuity - confirming the drain wire has continuous electrical contact with the foil or braid along the full length. A sample of each batch is retained for full traceability. Third-party inspection (SGS, BV, TÜV) welcome.
Conductor Resistance
IEC 60228 on every core - critical for loop accuracy.
Core-to-Core Insulation
Resistance tested between every core pair.
Batch Traceability
Sample retained per lot.
Typical Applications
This shielded fire alarm cable is designed for fire signalling wiring within fire safety systems, especially for sites with strong electromagnetic interference.
Commercial Buildings
Offices, retail, hotels with noisy electrical environments.
Industrial Plants
Factories, warehouses near motors and VSDs.
Hospitals & Data Centres Critical life-safety with high EMI sources.
Near Emergency Lighting Loops passing ballasts and LED drivers.
Near Fire Pumps & HVAC Loops near large motors and drives.
OEM / ODM Customisation
As an OEM shielded fire alarm cable manufacturer, we build to your specification - core count, AWG, shield type (foil, braid or foil+braid), conductor colours, jacket material, print and packaging. Ideal for fire-safety brands and distributors needing private-label or project-specific bulk shielded fire alarm cable.
*Core count (2–24 or custom)
*Shielding: foil, braid or foil+braid
*Conductor colour codes (BS EN or custom)
*Jacket material: LSZH or PVC; jacket colour (red, white, orange)
*Brand marking & sequential metre marking
*Reel / box packaging (305 m / 1000 ft standard)
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