Fireproof cable tray is mainly composed of glass fiber reinforced materials and inorganic adhesive composite fireproof board and composite metal skeleton and other fire material and components. The outer join fire retardant coating, so that the fireproof cable tray without burning fire, the fire spread has certain effect on vibration resistance, with flame retardant effect is extremely good.
Ji'nan cable also has is fireproof, oil resistance, corrosion resistance, non-toxic, no pollution, convenient installation, reasonable overall structure, long service life and beautiful, the cable installed in cable tray, clean environment, convenient cleaning. Fire retardant coating has the characteristics of thin coating, high fire resistance and strong cohesion.
1, the bridge system should have reliable electrical connection and grounding (only on the metal bridge)
2, when allowed using the bridge system composed of grounding line circuits should meet the following requirements. The bridge between end connection resistance should be less than 0.00033 ohm, grounding hole should remove the insulation coating at 1KV and below the neutral grounded system, electrical equipment grounding system with neutral grounding connected. A dynamic assembly when the power supply is cut off, the prefect direction of metal cross section bridge should be not less than the specified value.
3, along the length of the bridge to lay the ground line, each section (including non straight section) bridge should be at least one point and the grounding trunk reliable connection
4. For the vibration site, the spring should be installed at the joint of the grounding part
The above is the Ji'nan cable bridge today's share, you are satisfied with it, welcome to pay attention to our website: http://www.sdhangfeng.com/ and pay attention to our products, we will provide you with good products, and sincerely willing to establish a partnership with you.