Description
Draka OM3 SWA Loose Tube Fibre Optic Cable is a 50/125µm multimode fibre cable designed for external network installations where mechanical protection and long-term reliability are required. Its steel wire armoured (SWA) construction provides protection against impact, crushing and rodent damage, making it suitable for direct outdoor deployment and exposed routes.
The cable features a jelly-filled loose tube containing between 2 and 24 fibres, protected by water-blocked E-glass strength members. A UV-stabilised, halogen-free inner sheath is reinforced with 0.9mm zinc-coated steel wire armour before being covered by a second UV-stabilised halogen-free outer sheath. This construction helps prevent water ingress while maintaining durability in demanding environments.
Suitable for LAN and WAN backbones, telecom access networks, fibre-to-the-business (FTTB) and fibre-to-the-building connections, the cable can be installed in ducts, cable trays and external infrastructure routes.
The cable is manufactured in accordance with ISO 11801, EN 50173-1 and IEC 60794-1 standards, ensuring compatibility with standard OM3 multimode fibre connectivity and network hardware.
Specification
| Standards | |
| Compliance | ISO 11801 2nd edition EN 50173-1:2002 IEC 60794-1 |
| Construction | |
| Loose tube | Ø2.8 mm jelly filled green colored loose tube with 2 – 12 fibres; Ø3.5 mm loose tube with 24 fibres |
| Strength member | Waterblocked e-glass fibre elements |
| Ripcord | 1 |
| Inner sheath | 0.8 mm black Afumex® , Halogen free, flame resistant thermoplastic sheathing compound acc. to EN 50290-2-27, UV stabilised |
| Armouring | ø0.9 mm zinc coated steel wires according to IEC 60502 |
| Ripcords | 2 |
| Over sheath | 1.4 mm black Afumex® , Halogen free, flame resistant thermoplastic sheathing compound acc. to EN 50290-2-27, UV stabilised |
| Fire rating | |
| IEC 60332-1-2 | Single vertical wire test |
| IEC 60754-1 | No halogens |
| IEC 60754-2 | No acid matters |
| IEC 61034-2 | No dense smoke |
| Physical Properties | |
| Nominal outer diameter | 2 - 12 fibres: 10.8 mm 16 - 24 fibres: 11.2 mm |
| Nominal weight | 2 - 12 fibres: 215 kg/km 18 - 24 fibres: 230 kg/km |
| Maximum installation tensile strength | 4000 N (fibre strain less than 1/2 of proof test level) |
| Short term tensile strength | 2000 N (fibre strain less than 1/3 of proof test level) |
| Permanent tensile strength | 1000 N (no attenuation change, fibre strain less than 1/4 of proof test level) |
| Compressive strength (crush) | 2000 N |
| 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 20xD (Cable diameter) mm |
| Minimum bending radius, unloaded | R =100 mm |
| Minimum bending radius, loaded | R = 160 mm |
| Temperature range | Storage: -40C to +60C Installation: -10C to +50C Operation: -40C to +60C |
| Water penetration | No water on free end (core excl. armouring) |
Downloads
| Datasheet | Download |
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