[Chai Jin cable tray to recommend the star product - bridge] 1, cable tray as a cabling project supporting the project, there is no specific regulatory guidance cable tray, a manufacturer specifications program lacks versatility, therefore, the design the selection process should seem the type, quantity according to each system weak cable, select the applicable reasonable bridge. (1) determine the direction: According to the building floor plan, combined with air-conditioning lines and electrical lines and other settings, easy maintenance, and the cable routing density to determine the best route cable trays. [Chai Jin cable tray to recommend the star product - bridge] bridge fire fire protection requirements of section trough cable tray, you must use steel or non-flammable, fire-retardant materials. I produced a series of cable tray are BJⅢ fire bridge. V. Ground 1, the bridge system should have a reliable electrical connection and ground (only metal tray). 2, while allowing the use of the bridge when the grounding line loop system configuration meets the following requirements. The connection resistance between the ends of the bridge should not exceed 0.00033 ohms, grounding hole should remove the insulation coating. [Chai Jin cable tray to recommend the star product - the bridge] when (8) vertical cable tray cable laying, cable and interval in the upper 1.5 meters should be fixed on the bridge each bracket, horizontal laying, in The first cable, tail, turn and every interval of 3 to 5 meters fixed. (9) is set in the ceiling cable tray, the slot cover open surface should be kept 80 (vertical clearance mm, trunking cross-section utilization should not exceed 50%. (10) cloth on the trunking cables may not be bundled cable fire Bridge, the cable should be straight tank, tank cable should be straight, try not to cross, the cable should not overflow trough, in a cable duct and out of the site, the corner should lashing vertical trunking cable laying line should be in the cable bracket. trough cable tray corporate integrity Chai Jin _ _ Bozhou cable tray cable tray cable tray from the Tianjin Chai Jin Co., a fixed interval of 1.5 m. Tianjin Chai Jin cable bridge Limited (www.tjcjdlqj. com) is Tianjin, metal building materials leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Chai Jin cable tray leadership with the staff warmly welcome all inquiries negotiations to create Chai Jin cable tray a better future.