Mines underground MSHA Leaky Feeder Cable 75 Ohm Coal Mine Feeder Cable

Quick details:

• MSHA certified
• 75 ohm leaky feeder cable
• with flame retardant jacket or no smoke halogan free jacket
• for coal mine communication
• MSHA certificate
• user's lable OEM or ODM desgin service is available

Product description

This leaky feeder cable is of 75 ohm with oxygen free copper as inner conductor. Evenly spaced copper wire for outer conductor, the common color of outer jacket is yellow, but blue or orange color is also available.

Applications

• Mines underground communication system
• metro stations
• tunnels
• ships
• In-building wireless systems.
• perimeter detection

Center conductor

Oxygen free copper

Inner conductor diameter:2.31±0.05mm(0.091±0.002 inches)

Dielectric

Gas expanded polyethylene

Diameter over dielectric: 9.53±0.2mm(0.375±0.008 inches)

Outer conductor

1. Annealed oxygen free copper wire

16 strand x 0.6±0.05mm(0.024±0.002 inches)

2. Tape for tightening copper wires

PVC Jacket

Inner jacket: black PE

13.0±0.5mm(0.512±0.02 inches)

Outer jacket: flame retardant PVC or low smoke zero halogen

15.0±0.5mm(0.59±0.01968 inches)

Electrical properties

Impedance : 75±3 ohms

Attenuation @85 MHZ—3.4dB/100m

Attenuation @150 MHZ--4.2dB/100m

Attenuation @160 MHZ--4.8dB/100m

Attenuation @450MHZ—6.1dB/100m

DC resistance inner conductor＜4.5 ohm/km

DC resistance outer conductor＜4.1 ohm/km

Capacitance-- 54 pF/m

Insulation resistance＞10.4m ohm/km

Mechanical properties

MIN. bend radius--150mm

Operating temperature---40 to +70 centigrade

Packing

Cable length/roll—350m or 500m±2% as per customer’s preference

Reel size (Flange* Hub* Traverse): 56cm x 28cm x 50cm or 69cm x31cm x 50cm

Competitive Advantage:

• Libo cable was established in 1994, it covers over 340,000 square meters on our operating area.
• Libo cable has a stable workforce and engineering team, our production and testing procedures are all strictly follow requirement of ISO9000, and ISO14000.
• Libo cable is equipped with a Provincial-level Research and Development Center; we offer OEM and ODM services.
• Over 10 years of experience on leaky feeder cable, big market share in oversea leaky feeder cable industry.