The copper shielding mesh has the high strength fire protection and high temperature resistance monitoring function, and can be widely used in power plants, oil depots, petrochemical metallurgy, mines and other industrial and mining enterprises.
Copper shielding mesh is applicable to high-rise buildings, oil fields, power stations, power plants, mines, chemical industry, mines, subways and other places with high demand for fire protection, and is also the required cable for emergency power supply, fire pump, elevator communication signal system; The copper shielding mesh is flame retardant and fire-resistant. In the case of direct burning of flame, it will not have short circuit and open circuit problems within a certain time (not less than 3h), and ensure continuous power supply to maintain lighting and signal transmission, so that maintenance personnel have enough time to safely evacuate.
The copper shielded mesh cable is suitable for electronic computers and automatic connection cables with additional voltage of 500V and below that have high requirements for anti-interference. K-type B low-density polyethylene with oxidation resistance function shall be selected as the insulation of cable ground wire core. Polyethylene has high insulation resistance, good voltage resistance, small dielectric coefficient, small influence of dielectric loss temperature and frequency change, which can not only meet the requirements of transmission function, but also ensure the service life of the cable.
The copper shielding mesh has a high fire resistance function, and it will not have short circuit and short circuit problems in a certain time under the direct burning of fire. Therefore, when a fire breaks out, it is conducive to reducing loss. The low smoke halogen-free cable belongs to the environmental protection cable, which is particularly suitable for power, large-scale construction, railways, ships and other professions with high demand for fire protection.
The copper shielding mesh is wrapped with mica tape to achieve the purpose of fire protection. In order to reduce mutual interference and external interference between circuits, the cable is shielded. The shielding requirements of cables are based on different occasions: twisted pair combined shielding, total shielding of twisted pair cables, total shielding after twisted pair combined shielding, etc.
There are three types of copper shielding materials: round copper wire, copper tape, aluminum tape/plastic composite tape. The shielding pair and shielding pair have good insulation function. If the potential difference between the shielding pair and shielding pair appears during the cable application, the signal transmission quality will not be affected.
