G-GC is typically used to power equipment in mining tunnels. The G-GC stands for ground with a ground check, and like the name implies it contains grounding wires and something that is unique to mining cable, a ground check wire. The ground check wire sends a signal that let’s the operator know the ground wire is in tact. The individual conductors are twisted to help reduce internal circulating currents. Covering the individual conductors is the insulation, which protects the conductors and keeps people and objects from touching the conductors. The insulation is typically made of a material called ethylene-propylene rubber (EPR) and is good for 90 degrees c, just short of the boiling point of water. Covering the insulation is the jacket of the cable, which serves the purposes of containing the conductors, additional insulation protection and to act as protection for the conductors. The jacketing material in G-GC mining cable can be either mold-cured thermoset chlorinated polyethylene, or CPE, or continuous vulcanized rubber (CV) which is a way to turn rubber compounds into a usable jacket. Mold-cured, or as it was previously called, lead-cured, jackets are produced by taking standard vulcanized rubber jackets and compressing them with a lead mold shortly after extrusion. The finished product is a denser and much more durable jacket that lasts longer and is resistant to scrapes and cuts. The mold-curing process is more expensive since it takes an extra step, however mold-cured jackets have been proven to last longer than CV cured jackets. G-GC mining cable comes rated at V.
If you are looking for more details, kindly visit our website.
- SHD-GC
SHD-GC also known as shovel or dragline cable, is used for continuous mining electric shovels, conveyors, loaders and other mobile mining equipment. SHD-GC cable construction is similar to G-GC construction with a few differences. SHD-GC construction contains a separator tape around each conductor that allows for more flexibility, and an extra layer of insulation underneath the outer jacket. SHD-GC cable also comes with mold-cured or CV cured options. SHD-GC mining cable can come in V and V ratings. SHD-GC cable at the volt rating contains a tinned copper color coded braid around each conductor.
- MP-GC
MP-GC cable, otherwise known as mine power feed cable is used to connect medium voltage distribution systems. As the name implies, it contains a ground and ground check cable, The conductors are stranded for flexibility and contains an insulating copper tape shield over each conductor which shields the conductors from the kinetic energy produced by high voltage. The insulation is ethylene-propylene rubber and the jacket can be either mold-cured or CV.
-Optional jacket configuration
Another compound used in jackets beside rubber is a material called thermoplastic polyurethane, or TPU. TPU uses “virtual crosslinking” polymers that enhance the strength and durability of the jacket. TPU jackets have been proven to have 5 times more abrasion resistance and twice as much tensile strength and tear resistance as compared to Chlorinated Polyethylene (CPE) jackets. TPU jackets are not meant to be stored for long periods on reels, as the jacket tends to create a chemical reaction that flattens the touching sides due to the heat generated.
-Reflective stripes
With competitive price and timely delivery, Langnuo Mining Equipment sincerely hope to be your supplier and partner.
Nexans, whose brand name for mining cable is Tiger Brand, has developed a reflective stripe than can be applied to the outer jacket of mining cable. These “Tiger Stripes” allow the cable to be seen at night when the lights of a vehicle such as a mining truck or loader are shined on it. I have even heard of applications where the reflective striped cable are used to line the roads leading to a pit at a mine site.
ATI Electrical Supply is a distributor of General Cable, Nexans, Southwire and Telefonika mining cable. Call one of our mining experts at 800-597- today. We can help specify and provide pricing and availability for all your mining needs.
Thorne & Derrick | Distributors for Ellis Patents | Cleats | Supports | Hooks | Hangers
A customer required a cable cleat solution to fit existing brackets in a vertical access tunnel to a mine shaft. A range of cables were required to be held; the brackets were already installed in the shaft so the solution was required to interface with them.
Ellis Patents received samples of cables and brackets and experimented with a number of retention solutions in their in-house test facility. Upon completion of the development work, new designs were created and manufacturing drawings produced. The material selection and size were backed up with hand and FEA calculations. One of the solutions was based around an existing design and the other required a completely new solution. Drawings were supplied to the customer including the supply of the part number to be filed in the project documentation pack.
Thorne & Derrick International are Specialist Suppliers of products to provide safe and reliable LV HV Cable Termination, Jointing, Installation & Power Systems up to 66kV.
Key Product Categories: Connectors, Joints & Terminations MV HV | Cable Preparation & Jointing Tools | Duct Seals | Cable Transits | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Clothing & Protection | Cable Pulling | Earthing & Lightning Protection | Feeder Pillars
For more Mining Cable Clampinformation, please contact us. We will provide professional answers.