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.
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