cable news: technical development of mining cable
from：guichao author：admin click： 374 addtime：2017-04-08 17:00:57
due to the current energy, raw material tension,
the prevailing overyielding mining enterprises in our country,
this makes the mining equipment generally in overload state.
in the coal industry, for example, gas, water,
fire is the main disaster of coal mine in china,
electrical equipment for coal mine,
must have explosion-proof performance.
coal mine blasting equipment to good stability,
the use of gas and coal dust can not cause explosion and the formation of harmful fumes;
coal mine ventilation, conveyor belt, cable must have flame retardant and antistatic properties.
in addition, ventilation, lighting, coal mining, tunneling, transportation, monitoring and drainage,
power systems, safety instruments, protection, disaster relief and other equipment used must be safe and reliable.
this series of mine electrical products must be safe and reliable to ensure the operation of mining cables.
flame retardant cable for coal mine, not only need to have flame retardant, antistatic performance,
it is also necessary to add a semiconductor shielding layer in the cable sheath,
even if hit, hit, squeeze, pressure, allowing only the advance power,
phase and phase short circuit.
the flame retardant cable for coal mine must carry out the safety mark management system as well as all the coal mine products.
in the aspect of insulation and sheath material, with the new material,
the application of new technology has produced many excellent polymer materials, such as chlorinated polyethylene,
silicone rubber has been used in the cable industry because of its excellent physical and mechanical properties,
widely used in mines, nuclear power plants and other environmental conditions.
in the aspect of conductor, the industrial application of single crystal copper enables the conductor to meet the requirements of the corresponding dc resistance,
can be done more fine, more soft. it can be predicted that the development direction of mining cable is made of single crystal copper,
chlorinated polyethylene, silicone rubber as insulation and sheath material. compared with the usual mining cable,
the use of new materials for mining cables will be safer, more lightweight, weather resistance and service life will be more excellent.