CPR B2ca Fire Resistant Fiber Optic Cable
CPR B2ca Fire Resistant Fiber Optic Cable is a single loose tube, corrugated steel tape armored fiber optic cable developed for fire-critical building infrastructure where TSE-certified B2ca reaction-to-fire performance, controlled smoke emissions and mechanical protection are specified.
Built with an HFFR outer sheath, mica fire barrier layers, glass yarn strength member, and corrugated steel tape armor, this construction is offered for projects requiring steel-tape armour and CPR B2ca classification. FE180 and PH120 are not independently certified performance ratings for this published cable configuration.
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Overview of CPR B2ca Fire Resistant Fiber Optic Cable
This armored fire-resistant fiber optic cable is designed for projects where standard indoor cable performance is not enough. The construction combines optical transmission stability with enhanced fire behavior, for use in projects specifying CPR B2ca reaction-to-fire behaviour. Where operation during a fire is required, approval depends on separate circuit-integrity testing for the exact cable build.
The cable structure shown in the datasheet is based on U-DQ(ZN)MT(SR)H design, with a single loose tube, thixotropic gel filling, two layers of mica tape, glass yarn, aramid ripcord, corrugated steel tape armor, and an HFFR UV-resistant outer jacket.
CPR B2ca Fire Resistant Fiber Optic Cable Key Advantages
In-house fire-test information
UPCOM holds an in-house 120-minute test record for a 24-fiber sample. This is not an independent PH120 or FE180 certification; the reported test-sample diameter differs from the published datasheet.
High fire classification
B2ca-s1a,d1,a1 performance supports demanding building specifications that require stronger fire reaction behavior than standard indoor cable classes.
Armored mechanical protection
Corrugated steel tape armor improves resistance against crush and handling stress in more exposed routing conditions.
Low smoke, halogen-free jacket
HFFR outer jacket helps reduce smoke density and corrosive gas concerns in occupied spaces and enclosed routes.
Macro-bending resistant fiber
Standard datasheet configuration uses G.657.A1 single-mode fiber, well suited for tighter routing conditions inside technical spaces.
Project-ready cable marking
One-side inkjet marking in one-meter intervals supports easier site control, identification, and reel management.
Construction Details for CPR B2ca Fire Resistant Fiber Optic Cable
Core construction
- Single loose tube design
- Tube material: halogen-free flame retardant PBT
- Tube filling compound: thixotropic gel
- Dielectric tensile strength member: glass yarn
- Jacket strip method: aramid ripcord
Fire and protection layers
- Two layers of mica tape applied helically
- Copolymer coated corrugated steel tape armor
- HFFR UV-resistant outer sheath
- Black jacket as standard datasheet color
Typical project fit
Technical Data for CPR B2ca Fire Resistant Fiber Optic Cable
| Parameter | 12 Fibers | 24 Fibers |
|---|---|---|
| Product code family | U-DQ(ZN)MT(SR)H | U-DQ(ZN)MT(SR)H |
| Standard fiber type | ITU-T G.657.A1 | ITU-T G.657.A1 |
| Fiber dimensions | 9/125/245/260 µm | 9/125/245/260 µm |
| Tube diameter | 2.8 mm | 3.0 mm |
| Nominal cable diameter | 8.6 mm | 8.8 mm |
| Net cable weight | 110 kg/km | 113 kg/km |
| Tensile strength | 1000 N | 1000 N |
| Crush resistance | 2000 N/100 mm (15 min) | 2000 N/100 mm (15 min) |
| Maximum attenuation @ 1310 nm | 0.36 dB/km | 0.36 dB/km |
| Maximum attenuation @ 1550 nm | 0.24 dB/km | 0.24 dB/km |
| Transportation temperature | -40 °C to 70 °C | -40 °C to 70 °C |
| Storage temperature | -40 °C to 70 °C | -40 °C to 70 °C |
| Installation temperature | -30 °C to 60 °C | -30 °C to 60 °C |
| Operation temperature | -40 °C to 70 °C | -40 °C to 70 °C |
| Standard reel length | 2000 m ±5 | 2000 m ±5 |
Optical fiber performance snapshot
Mode field diameter
9.0 ± 0.4 µm at 1310 nm and 10.1 ± 0.5 µm at 1550 nm.
Cut-off wavelength
Cable cut-off wavelength below 1260 nm for the standard G.657.A1 fiber construction.
Macro-bending control
Low macro-bending sensitive single-mode optical fiber supports demanding indoor routing conditions.
Where CPR B2ca Fire Resistant Fiber Optic Cable Fits Best
Emergency and life-safety communication routes
May be considered for emergency communication routes where B2ca reaction-to-fire performance is specified. Do not rely on this product for a required fire-survival duration without independent test evidence.
Transport and public infrastructure
A strong fit for metro projects, stations, tunnels, airports, and similar enclosed infrastructures where smoke behavior and cable fire classification matter in project approval.
Industrial and technical facilities
Works well in power facilities, process plants, secure technical rooms, and industrial campuses where both mechanical protection and fire performance are specified together.
High-density building backbone routes
Useful for risers, backbone runs, and technical routes in buildings that require a higher CPR class than common low-cost indoor cables.
Fire Performance and Compliance
CPR classification
B2ca-s1a,d1,a1 reaction to fire classification for demanding indoor fire-performance requirements.
Fire-integrity evidence
UPCOM in-house fire exposure test documentation is available on request. Independent PH120/FE180 certification is not available; results have not been validated for the current datasheet construction.
Smoke and halogen behavior
Aligned with smoke density and halogen gas test standards commonly referenced in cable fire-performance assessments.
| Property | Reference | What it covers |
|---|---|---|
| Reaction to fire | B2ca-s1a,d1,a1 | Higher fire-performance classification for building cable use |
| Fire-integrity evidence | PH120/FE180: internal reference only | Internal test reference only; independent fire-integrity approval not established |
| Flame retardancy | IEC 60332-1-2 | Vertical flame propagation behavior |
| Smoke density | IEC 61034-2 | Smoke emission under defined burning conditions |
| Halogen-free / corrosive gas | IEC 60754-1 / IEC 60754-2 | Halogen acid gas content and corrosive gas behavior |
| Mechanical cable tests | IEC 60794-1-21 E1 / E3 | Tensile and crush resistance references |
| Chemical compliance | RoHS / REACH | Hazardous substance and regulatory compliance baseline |
Ordering Information for CPR B2ca Fire Resistant Fiber Optic Cable
Order codes combine the armored cable family, fiber type, fiber count, and B2ca classification. Confirm the exact code and corresponding technical data before the purchase order is issued.
| Fiber family | 4F | 8F | 12F | 24F |
|---|---|---|---|---|
| G.652.D | U-DQ(ZN)MT(SR)H-GDx4-B2ca | U-DQ(ZN)MT(SR)H-GDx8-B2ca | U-DQ(ZN)MT(SR)H-GDx12-B2ca | U-DQ(ZN)MT(SR)H-GDx24-B2ca |
| G.657.A1 | U-DQ(ZN)MT(SR)H-GA1x4-B2ca | U-DQ(ZN)MT(SR)H-GA1x8-B2ca | U-DQ(ZN)MT(SR)H-GA1x12-B2ca | U-DQ(ZN)MT(SR)H-GA1x24-B2ca |
| OM2 | U-DQ(ZN)MT(SR)H-OM2x4-B2ca | U-DQ(ZN)MT(SR)H-OM2x8-B2ca | U-DQ(ZN)MT(SR)H-OM2x12-B2ca | U-DQ(ZN)MT(SR)H-OM2x24-B2ca |
| OM3 | U-DQ(ZN)MT(SR)H-OM3x4-B2ca | U-DQ(ZN)MT(SR)H-OM3x8-B2ca | U-DQ(ZN)MT(SR)H-OM3x12-B2ca | U-DQ(ZN)MT(SR)H-OM3x24-B2ca |
| OM4 | U-DQ(ZN)MT(SR)H-OM4x4-B2ca | U-DQ(ZN)MT(SR)H-OM4x8-B2ca | U-DQ(ZN)MT(SR)H-OM4x12-B2ca | U-DQ(ZN)MT(SR)H-OM4x24-B2ca |
Packaging and Marking
Standard reel length
2000 meters ±5 for the standard G.657.A1 configuration.
Jacket marking
Inkjet marking, one side, applied in one-meter intervals for easier identification and installation control.
Project coordination
Special reel lengths, labeling, and documentation packages can be aligned with project requirements before production.
FAQ for CPR B2ca Fire Resistant Fiber Optic Cable
What does CPR B2ca mean for this fiber optic cable?
It indicates a higher fire-performance classification for cable use in buildings. In practice, it helps specifiers compare reaction-to-fire behavior under the CPR framework and select a cable class aligned with project requirements.
Is this cable armored or non-armored?
It is corrugated steel tape armored. The U-DQ(ZN)MT(SR)H construction includes CST armor and must not be described as non-metallic.
Which fiber type is standard in the datasheet?
The standard datasheet configuration is based on ITU-T G.657.A1 single-mode fiber. Other fiber families can be discussed depending on project scope and requested configuration.
Can this cable be used in critical indoor infrastructure?
It can be specified for suitable indoor routes requiring B2ca reaction-to-fire performance. For emergency systems requiring continued operation during fire, request independent circuit-integrity evidence before approval.
What reel length is standard?
The standard G.657.A1 configuration uses a 2000 m ±5 reel length. Alternative lengths should be confirmed at quotation stage.
How should this cable be specified in an RFQ?
State the required fiber type, fiber count, CPR class, fire integrity expectation, reel length, destination market, and any requested documentation such as DoP, test references, and marking format.
Request an Armored B2ca Cable Configuration
For risers, tunnels, stations, industrial routes, or emergency communication lines, send the required fiber type, fiber count, reel length, CPR class, fire-integrity requirement, and documentation scope.