Description
Draka OM3 Loose Tube Fibre Optic Cable is a 50/125µm multimode fibre cable designed for internal and external network installations. Suitable for LAN and WAN backbones, telecom access networks, fibre-to-the-business (FTTB) and fibre-to-the-building (FTTB) connections, it provides a versatile solution for structured fibre optic infrastructure.
The cable features a gel-filled loose tube containing between 2 and 24 optical fibres, protected by water-blocked E-glass strength members and a UV-stabilised FireBur® LSOH (Low Smoke Zero Halogen) outer sheath. Its lightweight construction makes it suitable for installation in ducts, cable trays and other protected routing systems where armouring is not required.
The water-blocked design helps prevent moisture ingress, while the FireBur® sheath meets CPR Euroclass Eca requirements and provides UV resistance for external installations. Manufactured to recognised international standards, the cable is compatible with standard OM3 multimode fibre connectivity and structured cabling systems.
Specification
| Standards | |
| Compliance | ISO 11801 2nd edition, EN 50173-1:2002, IEC 60794-1 |
| Flame resistance | |
| LSHF (LSOH) | IEC 60332-1-2, IEC 60754-1, IEC 60754-2, IEC 61034-2; Class Eca |
| Construction | |
| Loose tube | Ø2.8 mm gel-filled loose tube with 2 - 16 fibres; Ø3.5 mm loose tube with 24 fibres |
| Strength member | Water-blocked E-glass fibre elements |
| Sheath | 1.0mm Black FireBur® sheath, UV stabilised, IEC 50290-2-27 |
| Physical Properties | |
| Nominal outer diameter | 2 - 16 fibres: 6.0 mm 18 - 24 fibres: 6.5 mm |
| Nominal weight | 2 - 16 fibres: 40 kg/km 18 - 24 fibres: 45 kg/km |
| Maximum installation tensile strength | 1000 N (fibre strain less than 1/2 of proof test level) |
| Short term tensile strength | 750 N (fibre strain less than 1/3 of proof test level) |
| Permanent tensile strength | 500 N (no attenuation change, fibre strain less than 1/4 of proof test level) |
| Compressive strength (crush) | 1500 N / 100 mm |
| Impact | 15 Nm (no attenuation change, no broken cable elements) |
| Torsion | 5 cycles ± 1 turn |
| Kink | The cables do not form a kink when a loop is drawn together to a diameter of 100 mm |
| Minimum bending radius, unloaded | R = 60 mm |
| Minimum bending radius, loaded | R = 100 mm |
| Temperature range | Storage: -40C to +60C Installation: -30C to +40C Operation: -30C to +60C |
| Water penetration | No water on free end |
| Heat of combustion | 2-16 fibres: 630 MJ/km = 0.18 kWh/m 24 fibres: 800 MJ/km = 0.22 kWh/km |
Downloads
| Datasheet | Download |
| Declaration of Performance | Download |
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