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

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.

As known to all, Shaoxing is a place propitious for giving birth to great men and a place endowed with the fine spirits of the universe. The towering Jishan Mountain and flowing Jianshui River nurture the prosperous civilization of this famous historic and cultural city.

About 2500 years ago, Pingshui at the foot of Kuaijishan Mountain had been the manufacturing base of bronze weapons for the ancient kingdom of Yue. Stories of Rizhu Mountain that got the name from the sword-casting in one day by Ou Yezi, as well as the Sanzao (Three Furnances) of Shangzao, Zhongzao and Xiazao, have been widely told by generations. Now, relying on the innovative technology and ideas and top-class quality, Libo Group of Shaoxing is leading the new trend of copper and aluminum processing.

Libo Group is a nationally recognized Hi-Tech Enterprise specializing in copper and aluminum processing, electronic wire and cable, machinery manufacturing, new energy materials and real estate development, including 12 subsidiaries and 2000 employees. It is one of the 500 largest private enterprises in China and has been awarded Advanced Labor and Social Security Enterprise and a Key and Major Enterprise in Shaoxing. “Libo” has been the Well-known Trademark of China.

Libo Cable is subsidiary of Libo Group, it is specialized in the manufacturing of physical-foamed RF coaxial cable, seamless aluminum tube trunk cable, leaky feeder cable, solar PV ribbon and cable. With the advanced physical high-foam production lines and continuous-extruding seamless aluminum tube production lines, it now possesses the yearly capacity of 60,000 km of coaxial cables, with the world-class quality. Products have been certified by UL and CE and exported to European and American market. The solar PV ribbon and cable makes use of the oxygen-free copper strip as the blank and it possesses the excellent electric conductivity and favorable solder ability and flexibility, which has been favored by the majority of users.