BS 5266-1 Emergency Lighting Fire Resistant Screened Control Cable
BS 5266-1 Emergency Lighting Fire Resistant Screened Control Cable is a 300/500V mica-and-silicone-rubber insulated, overall-screened LSZH cable intended for emergency-lighting circuits in premises. Its fire-resistant construction, overall screen and low-smoke zero-halogen sheath support control and supply circuits where continued operation during fire conditions is a key project requirement.
PRODUCT OVERVIEW
This 300/500V fire-resistant overall-screened control cable combines plain annealed copper conductors with a mica-glass fire-resistant tape and fire-resistant silicone-rubber insulation, an aluminum/polyester overall screen with tinned-copper drain wire, and a low-smoke zero-halogen outer sheath. The construction is designed to maintain circuit integrity during fire conditions while also providing an overall screen for control and signalling circuits.
For emergency-lighting installations, the cable combines circuit-integrity capability with screened multicore construction. The 2-, 3- and 4-core versions include an uninsulated tinned-copper circuit protective conductor of the same section and class as the insulated conductors, while cables above four cores use a 0.5 mm² tinned-copper drain wire.
KEY FEATURES
- 300/500V fire-resistant screened control cable.
- Plain annealed copper conductors: solid Class 1 or stranded Class 2 to IEC/EN 60228.
- Mica-glass fire-resistant tape with fire-resistant silicone-rubber insulation type EI2.
- Aluminum/polyester overall screen with tinned-copper drain wire.
- Thermoplastic LSZH outer sheath type LTS3; thermosetting LSZH SW2-SW4 can be offered.
- PH120 mechanical-shock circuit-integrity reference in the product designation.
- Operating temperature: -30°C to +90°C; installation temperature: -20°C to +50°C.
- Minimum bending radius: 7.5 × overall diameter.
- Application reference: BS 5266-1 for emergency lighting of premises.
- Fire-resistant screened construction for emergency-lighting circuits.
EMERGENCY LIGHTING FOCUS
Emergency-lighting circuits need cable systems that continue to operate during abnormal and fire conditions long enough to support safe evacuation and emergency response. This cable family combines mica-based fire protection, silicone-rubber insulation, LSZH sheathing and overall screening, with fire-performance references including circuit integrity, mechanical shock and water-spray conditions.
FIRE PERFORMANCE
Performance | Referenced Test / Standard |
Circuit integrity | IEC 60331-21; BS 6387 CWZ; DIN VDE 0472-814 (FE180); BS 8434-2 (120 min); BS 5839-1 Clause 26 2e; CEI 20-36/2-1; SS229-1; NBN C 30-004 (F3); NF C32-070-2.3 (CR1) |
Circuit integrity with mechanical shock | EN 50200 (PH120); CEI 20-36/4-0 |
Circuit integrity with mechanical shock & water spray | EN 50200 Annex E |
System circuit integrity | DIN 4102-12, E30 depending on lay system |
Flame retardance – single vertical wire | EN/IEC/BS EN 60332-1-2 and listed equivalents |
Reduced fire propagation – bundled cables | EN/IEC/BS EN 60332-3-24 (Cat. C) and listed equivalents |
Halogen free | IEC 60754-1 and listed equivalents |
No corrosive gas emission | IEC 60754-2 and listed equivalents |
Minimum smoke emission | IEC 61034-1&2 and listed equivalents |
No toxic gases | NES 02-713; NF C 20-454 |
CABLE CONSTRUCTION
Voltage Rating | 300/500V |
Conductors | Plain annealed copper; solid IEC/EN 60228 Class 1 or stranded Class 2 |
Insulation | Mica glass fire-resistant tape + fire-resistant silicone rubber compound type EI2 |
Cabling | Cores cabled in concentric layers with suitable non-hygroscopic fillers |
Overall Screen | Aluminum/polyester tape with tinned copper drain wire |
Circuit Protective Conductor | Uninsulated tinned copper conductor, same section and class as insulated conductors in 2-, 3- and 4-core cables |
Drain Wire for >4 Cores | 0.5 mm² tinned copper conductor |
Outer Sheath | Thermoplastic LSZH LTS3; optional thermosetting LSZH SW2-SW4 |
Sheath Colour | Red or white; other colours on request |
Operating Temperature | -30°C to +90°C |
Installation Temperature | -20°C to +50°C |
Minimum Bending Radius | 7.5 × overall diameter |
PRODUCT APPLICATIONS
- Emergency lighting of premises referenced by BS 5266-1.
- Escape-route and emergency-exit lighting circuits.
- Central battery and emergency-lighting control circuits where screened fire-resistant cable is specified.
- Building services requiring LSZH fire-resistant screened multicore cable.
CONSTRUCTION PARAMETERS
| Cores | Cross Section mm² | Insulation mm | Sheath mm | Overall Diameter mm | Approx. Weight kg/km |
|---|---|---|---|---|---|
| 2 | 1.0 | 0.6 | 0.9 | 7.9 | 85 |
| 2 | 1.5 | 0.7 | 0.9 | 8.8 | 105 |
| 2 | 2.5 | 0.8 | 1.0 | 10.2 | 150 |
| 2 | 1.5 | 0.7 | 0.9 | 9.2 | 110 |
| 2 | 2.5 | 0.8 | 1.0 | 10.3 | 155 |
| 2 | 4.0 | 0.8 | 1.1 | 12.2 | 220 |
| 3 | 1.0 | 0.6 | 0.9 | 8.4 | 105 |
| 3 | 1.5 | 0.7 | 0.9 | 9.3 | 130 |
| 3 | 2.5 | 0.8 | 1.0 | 10.8 | 190 |
| 3 | 1.5 | 0.7 | 0.9 | 9.4 | 135 |
| 3 | 2.5 | 0.8 | 1.0 | 10.9 | 190 |
| 3 | 4.0 | 0.8 | 1.1 | 13.0 | 280 |
| 4 | 1.0 | 0.6 | 1.0 | 9.3 | 125 |
| 4 | 1.5 | 0.7 | 1.0 | 10.3 | 165 |
| 4 | 2.5 | 0.8 | 1.1 | 12.0 | 240 |
| 4 | 1.5 | 0.7 | 1.0 | 10.5 | 170 |
| 4 | 2.5 | 0.8 | 1.1 | 12.1 | 250 |
| 4 | 4.0 | 0.8 | 1.2 | 14.4 | 350 |
| 7 | 1.0 | 0.6 | 1.0 | 10.5 | 175 |
| 7 | 1.5 | 0.7 | 1.1 | 12.1 | 230 |
| 12 | 1.0 | 0.6 | 1.1 | 14.5 | 300 |
| 12 | 1.5 | 0.7 | 1.2 | 16.0 | 380 |
| 19 | 1.0 | 0.6 | 1.2 | 17.5 | 470 |
| 19 | 1.5 | 0.7 | 1.3 | 17.5 | 470 |
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From Production to Delivery
From raw material preparation to final shipmen, every stage is caretuly controled to ensure consistent conductor quality, reliable pertormance,and sae delivery. Our roduction,
inspection, packaging, and logistics processes are managed in accordance with applicable standards and project requirements.
Production
Plain annealed copper conductors are prepared as solid Class 1 or stranded Class 2 constructions, wrapped with mica-glass fire-resistant tape, insulated with fire-resistant silicone rubber, cabled with fillers, screened with aluminum/polyester tape and a tinned-copper drain wire, then finished with the specified LSZH sheath.
Inspection
Inspection focuses on circuit-protective conductor / drain-wire arrangement, screen continuity, mica and silicone-rubber insulation, LSZH sheath integrity, dielectric test, insulation resistance and specified fire-performance documentation.
Packaging
Finished cables are wound onto suitable drums according to ordered size and length. Cable ends are secured and protected, and drum identification can include cable code, core count, conductor size, length and project reference.
Shipping
Before shipment, cable drums and accompanying technical documents are checked against the order and packing list. Test records, product identification and project documentation can be prepared according to customer requirements
Frequently Asked Questions
What system application is this page focused on?
Emergency lighting of premises referenced by BS 5266-1.
What is the cable voltage rating?
300/500V.
What is the cable voltage rating?
Yes. Aluminum/polyester tape with a tinned-copper drain wire.
What sheath material is used?
Thermoplastic LSZH LTS3; thermosetting LSZH SW2-SW4 can be offered.
What fire integrity references are listed?
The source lists IEC 60331-21, BS 6387 CWZ, EN 50200 PH120, BS 8434-2 and other fire-performance references.
From Production to Delivery
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