字體：小 中 大 |
|
|
|
| 2017/12/26 15:29:49瀏覽85｜回應0｜推薦0 | |
Owing to the fact that millions of metres of welded steel-welding cable tray is installed in buildings of every type since its European launch more than 30 years ago, this welded steel-wire cable tray. a versatile product is firmly established as a cost-effective cable-management system in recent times. In spite of the fact that it is undoubtedly popular as a practical and cost-saving alternative to traditional perforated sheet-steel cable tray, wire 'basket' systems are still regarded by many well-informed people as having lower mechanical strength. It is this prejudice that has reinforced it to rise against the poor performance of lower-quality. This lightweight basket tray and higher-quality systems can hold against sheet steel tray and is even able outperform it in many areas. The major benefits of welded steel-wire cable tray includes excellent air circulation and these cables are installed in wire trays can be classes as clipped in free air', enabling smaller, more efficient battery cables to be used. The device installs free drainage facility and prevents the build-up of dust and debris, giving far higher levels of cleanliness and hygiene and eliminating possible fire and safety hazards. It is assumed that the large number of cables are capable of being carried in deep-sided cable containment and their total weight can cause mechanical stress or even partial crushing of the lowest layers, impairing their performance. Here the steel steel wire cable tray make it an ideal containment for power as well as communications cables. Further, the situation is less clear where space is limited or only a small number of communications cables and power cables need to be installed along the same route, especially if costs are under pressure. Temperature cycling tests also indicate that as wire mesh containment (as in the case of in steel solar cable tray) allows air to circulate freely, and also acts instrumental in providing a positive advantage by preventing overheating. While using a steel divider, in a metal cable tray significant amount of separation required between power and data cables is significantly reduced. If these are un-screened, separation can be as low as 50 mm, assuming the divider is both physically and electrically continuous. Independent tests have supported the guidelines given in data-cabling standards, showing that increased separation reduces interference. However, tests also show that if both power and data cables are placed in enclosed trunking, interference to data cables is far higher. Installing data and electric wires in an open wire-mesh cable tray, with low-impedance couplings and a continuous metallic divider reduces the problem at a stroke, providing significant savings in space, installation and materials - important considerations for both installer and client in a cost-conscious building environment. Independent tests have also supported the guidelines given in data-cabling standards, showing that increased separation results in reduced interference. These tests also claim that if both power and data cables are placed in enclosed trunking, interference to data cables is far higher. Installing data and power cables in an open wire-mesh cable tray, with low-impedance couplings and a continuous metallic divider reduces the problem at a stroke, providing significant savings in space, installation and materials. http://www.centralplaincable.com/ |
|
| ( 創作｜散文 ) |
