Chai Jin Tianjin Cable Bridge Co., Ltd. [] (7) cable tray should be more than 2.2 meters above the ground, the top of the bridge from the ceiling or other obstacle of not less than 0.3 meters, a width of not less than 0.1 m bridge spraying fire bridge, cross section inner tray The filling rate should not exceed 50%. (8) galvanized cable tray fire bridge perpendicular to the cable laying, cable and interval in the upper 1.5 meters should be fixed on the bridge each bracket, horizontal laying in cable head, tail, turn and every interval of 3 to 5 meters fixed. (9) is set in the ceiling fire bridge Which is better, the slot cover open surface should remain vertical clearance of 80 mm, trunking cross-section utilization should not exceed 50%. (10) cloth on the trunking cables may not be binding, the cable should be straight tank, tank cable should be straight, try not to cross, the cable should not overflow trough, in parts of the cable out of the trough, corner should lashing. Vertical ducts laying cables should each interval of 1.5 m is fixed to the cable bracket. (11) in the horizontal, vertical trays and vertical groove in laying cable, the cable banding response. Four pairs of wire cable bundle with 24 to 25 pairs or more main trunk cable, optical cable and other signal cables should be based on the type of cable, cable diameter, the cable core number splitting banding. Lashing spacing should be less than 1.5 meters, the deduction should be evenly spaced proper tightness. (12) laying the bridge level, support spacing is generally when 1.5-3m, vertical laying is fixed to a building isomer spacing should be less than 2m. Chai Jin Tianjin Cable Bridge Co., Ltd. [] used between glass pipe socket double "O" - ring connections, so each installation of a pipe, it is necessary to suppress the socket in place to detect double "O" type seal seal ring. With test pump directly through the top of the pipe pressure test hole. Water pressure to the working pressure of 1.5 times the pipe after the pump stops when (during the operation to open the drain valve exhaust), observe 2min, the pressure drop does not exceed 5% of the test pressure and the glass pipe nozzle no leakage. Speaking glass pipe pipe pressure is qualified. If the pressure drop decreased rapidly, in order to install a comprehensive quality inspection pipe, according to test method "Water drains construction and acceptance" provisions pressure test, allowing seepage can be performed in accordance with standard steel pipe, glass pipe before winding again Confirm lining no bubbles, pores, no impurities, surface roughness fire bridge, reasonable resin content, partial curing and non-white and poor phenomenon. Must be carefully checked lining is qualified, the defective machine wound prohibited. How much fire bridge, corporate integrity Chai Jin cable bridge, fire bridge Tangshan Chai Jin from the Tianjin cable bridge Limited. Chai Jin Tianjin Cable Bridge Co., Ltd. (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. Chai Jin leader in cable tray with the staff warmly welcome all inquiries negotiations to create Chai Jin cable tray a better future.