cable news: explosion proof cable specifications and the use of explosion-非凡电子娱乐

at present, with the rapid development of china's industrial automation, in the production process of explosion-proof cable as communication, monitoring, detection, alarm and control system of power supply equipment,

explosion proof safety power supply is mainly used in coal mine, petroleum, chemical industry, textile, coal mine and so on. what kind of cable is called "explosion-proof cable"?

that is, the short circuit or the electric spark of the line is not enough to ignite the flammable and explosive gas around, and the circuit is called the essential explosion-proof safety circuit".

explosion proof cable is characterized by low capacitance, difficult to store charge, good shielding performance and antistatic property.

explosion proof safety power supply circuit must comply with the requirements of explosion-proof safety circuit standards. at present, explosion-proof safety products and standards have formed a more complete system.

explosion proof cable manufacturers, their quality is uneven. when customers buy explosion-proof cable,

it is necessary to ask the manufacturer (cable sales company) for the drawings, or the environment, and the detailed description of the use of the explosion-proof cable in order to avoid economic losses.

the varieties of explosion proof cable include control cable, signal cable, computer cable, coaxial radio frequency cable and other ia grades.

under normal working condition, there is a fault or two faults in the circuit, which can not ignite explosive gas mixture.

in the ia circuit, the working current is limited to 100ma, suitable for chemical industry, oil refining, shipping, etc..

ib rating: in normal working conditions, and when there is a fault in the circuit, can not be a mixture of explosive gases.

in ib circuit, the working current is limited to 150ma, which is suitable for mine and explosion-proof equipment.

another type of explosion-proof cable is used for coal mine flame retardant explosion-proof cable, must hold the product safety mark certificate products,

m grade: colliery power cables, signal cables, coal mining machine cable, steel wire armored cable for coal mine,

mine steel wire braided cable, suitable for coal mine, vertical wells, inclined shaft, shaft etc..

one of the advantages of the shielded integrated wiring system is that the transmission performance of the core is not affected by the surrounding environment,

because the shielding layer plays a barrier role, it makes the core line only electromagnetic coupling with the shielding layer,

however, the distributed capacitance between the shield and the metal object is not related to the core.

in this way, more than six types of shielded twisted pair cable installation in the installation of the integrated wiring system acceptance criteria (gb) can be installed,

do not have to consider whether the surrounding metal objects will have an impact on twisted pair.