Flame-resistant Armored Structure Loose Tube Fiber Optic Cable for Mine Shafts and Optical Fiber Cable Applications

• Ruggedized cable designs specifically intended for mines, mine shafts, and cable trays used in mining applications.
• Certified for use by national authorities.

• Proper design and precise control of fiber excess in the loose tube provide good tensile strength and temperature performance.
• The flame-resistant blue PVC sheath delivers excellent anti-flaming performance.
• Metallic strengthening member, armored structure, steel-PE bonded sheath, and PVC outer sheath offer superior mechanical performance.
• In the standard flame-resistant optical fiber cable for mine use, fibers are positioned in a loose tube made of high-modulus plastic. The tubes are filled with water-resistant filling compound and wrapped with high-density waterproof nonwoven fabrics.
• A steel wire — sometimes sheathed with polythene for high fiber count cables — is located at the center of the core as a metallic strengthening member.
• Tubes are stranded around the strengthening member into a compact and circular cable core.
• The PSP is longitudinally applied over the cable core, which is filled with filling compound to protect against water ingress. A PE sheath is then applied.
• Finally, the cable is completed with a blue PVC sheath.

• Center Beam Tube Cable: 2–12 cores (due to process limitations, this design can only produce up to 12 cores).
• Layer Stranding Cable: 2–144 cores (generally fewer than 12 cores use the center beam tube design).

1. Center Beam Tube Cable: Optical fiber → fiber cream → loose tube → thin steel wire (with a surrounding layer) → steel → PE sheath → flame-retardant sheath.
2. Layer Stranding Cable: Central strengthening member (typically phosphated steel wire) → optical fiber → fiber cream → loose tube → cable tie → cable paste → steel → PE sheath → flame-retardant jacket (blue).

The mine flame-retardant optical fiber cable structure consists of single-mode or multi-mode optical fibers placed into high-modulus plastic loose tubes, with the casing filled with water-blocking compounds. The center of the cable core is a phosphatized steel wire or a steel cord crowded with polyethylene. The loose tube (or filling cord and signal cable) is twisted around the center reinforcing core into a compact and round cable core. The gap in the cable core is filled with water-blocking filler, steel-polyethylene bonded inner sheath, and a blue flame-retardant PVC sheath to form the complete cable.

If you want to display your own brand logo on the goods — such as on the cable, package bag, label, or anywhere else — there is no problem. Our OEM and ODM service is always ready to accommodate your requirements.

• According to standard export packing.
• Carton box, wooden box, wooden pallet.

• International express such as UPS, TNT, DHL, etc.
• International air: CA, AA, EA, etc.
• By sea.