High voltage power cables, Qin power cables, high-voltage power cable sales Ningxia

Fiber optic cable is a new generation of fiber-optic cable transmission medium, medium compared with copper, fiber whether in security, reliability or network performance has greatly improved. In addition, the optical fiber transmission bandwidth well beyond copper cable, and maximum range of its support for two kilometers, is the formation of large-scale network of inevitable choice. Since the optical fiber cable has good resistance to electromagnetic interference, confidentiality, speed, large transmission capacity, etc., so its price is also more expensive, rarely used in domestic situations. Currently, there are two common types of optical fiber, which are single-mode fiber and multimode fiber (so-called "model" refers to a certain angle of the beam of light into the fiber). Multimode fiber is commonly used for network connections from the same office or from the relatively close area. And a higher data transfer quality single-mode fiber, transmission distance is longer, is typically used to connect between the office network or wider geographically dispersed. If you use a fiber optic cable as the network transmission medium, the need to increase the light end transceiver devices such as cable or cable tunnel fire precautions to keep the channel with good lighting. Cable layers, or lighting cable tunnel within the channel are kept in good condition and needs up and down the tunnel and trench crossing with a dedicated ladder to inspect and cables running fighting fires. Power cable insulation explosion cause of the fire damage caused by a short circuit fault. Protection of lead sheet in laying power cables were damaged in the operation of cable insulation or mechanical damage, causing white or cable insulation breakdown lead sheet between the arc of the insulating material and the cable outer protective layer material burning fire.