What kind of design and selection needs to go through a specific process according to the cable type, quantity and reasonable selection of suitable bridge frame of each weak current system.
1. in the determination of the bridge width: according to the number of wiring, as well as cable diameter and the distance between the cable to determine the cable grid bridge model, specifications and managed length, as well as spacing and bridge width and layer number.
2. Determine the installation mode: the fixed mode of the bridge frame can be determined by setting conditions in more places, and the suspension type, upright type, or mixed type and the supporting supply of the firmware can be selected. In addition, there will be corresponding cover plate selected by the structural structure of the grid bridge frame.
3. Draw the plane drawing and section drawing of the cable grid bridge. In some places, the drawing space drawing will also appear to list the materials.
4. to determine the direction: according to the building plan combined with the specific design of air conditioning pipeline and electrical pipeline, convenient and simple, quick maintenance, as well as cable line density to determine the best road strength of the grid bridge. Indoors as far as possible along the edge of the building, a corner of the room, columns and beams or set up the bridge of the floor slab, so the design of the composite pipe gallery, should be on the side of the pipe or parallel to the bridge design, down lead and the main points need to be taken into account as far as possible to prevent penetration, if there are no other management use need to set up a pillar.
5. Load calculation: calculate the cable weight of unit length on the longitudinal section of backbone cables of cable bridge.