Analysis of Structured Cabling System influent

Structured Cabling System inlet-cabling infrastructure affected

Impact on the Performance of Electronic Devices

Structured Cabling System inlet may have a major impact on the ability of cables to support high-speed data applications (such as fast Ethernet and Gigabit Ethernet. In some cases, cables that are close to the maximum link length specified by the standard (so close to the attenuation budget limit) may become invalid in case of water inflow. This is because the Insulation Performance of the cable changes when the cable gets wet, which affects the impedance, attenuation, ripple loss, and other related parameters.

Cable Structure and structured cabling system Inlet

People often mistakenly think that the PVC material outside the standard data cable is waterproof. Otherwise, the PVC material is moisture-absorbing. Both the standard cat5e and cat6 cables use PVC jackets. They are designed for indoor use and are not suitable for wet environments. For outdoor environments with any amount of fog or water, the cables are designed to take waterproof measures, such as blocking tape and gel filling, but these methods are costly and sometimes reduce electrical performance. It is also worth mentioning that these waterproof gel is based on oil and therefore not suitable for indoor use (except for connection points) because of fire hazards. In fact, the distance between these cables in the building is usually restricted by national standards.

In addition, the cable structure also affects the water intake. The low smoke-free halogen (LSOH) cable has a low blocking capability for incoming water, because the moisture absorption capability of the skin material used is higher than that of PVC. The vertical foil shielding FTP cable can effectively block incoming water, because the shielding material is similar to the blocking tape. However, it should be noted that FTP still cannot be "waterproof ".

Structured Cabling System influent

The impact of Structured Cabling System inlet water also depends on the source of water and the time of inlet water. The PVC cables are exposed to a small amount of clean water in a short period of time, which may not have any long-term adverse effects. However, if the low smoke and Zero Halogen cables directly laid on the concrete floor do not use any pipes or protective measures, the loss risk will be much higher if they are flooded for less than a week. Dust-filled cement floors and Water Containing Dissolved pollutants can pose a greater risk.

In addition to the impact on the inlet of the cable through the outer skin, the cable may be immersed in the water at the beginning of a great threat. The tight twisted pair wires inside the data cable will promote capillary reaction and may inhale water from a long distance away from the cable to damage the electrical characteristics of the cable. Almost all cables affected by this method must be replaced.

Early prevention is far more time-consuming, costly, and destructive than the late replacement of damp cabling systems. Obviously, the best way is to prevent cable flooding. Ideally, enterprises located in highly dangerous areas should consider the risks of moisture in the network design phase, and even existing cabling networks should consider what measures can be taken. If possible, the cable should be suspended in the pipe in the ceiling space. This reduces the risk of moisture compared to underfloor cabling. By using pipelines, such as cable racks, the cables can be dried faster when the cables are damp, while sealing pipes can better prevent the immersion of a small amount of water.

If the cable must pass through the floor space, it should be within the allowable height range of the live floor so that the cable tray or cable rack is as high as possible than the floor plane.

The loss caused by small floods such as water pipe bursts is no less than the flood of river water, so it is best to keep the water pipe facilities away from areas with a large concentration of cables, such as telecommunications rooms and/or equipment rooms. Do not allow water pipes to pass through these communication spaces, or set up kitchens or toilets nearby. Do not place the telecom room or equipment room in the basement, especially when it is near a river! If isolation is not possible, consider using racks or cabinets, or creating a embankment to divert flood traffic to areas with less impact.

Summary of Structured Cabling System influent

When the cable is wet, the required measures depend on the number of affected cables, the risk of replacement costs and the loss of business without replacement cables, and so on. For cables that are injected through the beginning of the capillary reaction, the cables should be replaced all the time. Cables that are seriously affected by the inlet may also need to be replaced. The network should be fully tested and advice should be sought from the manufacturer or a trusted installer. If you have no questions, change the cable.

The Analysis and Solution of the structured cabling system's water inlet problems are described for everyone. I hope it will be helpful to engineers. in the case of such problems, the above content should help everyone solve the problem.