Chemical construction Company

Integrated wiring is a modular and highly flexible information transmission channel within a building or between building groups. It can not only connect voice, data, image equipment and switching equipment with other information management systems, but also connect these equipment with the outside. It also includes all cables and related connection components between the connection points of the external network or telecommunication lines of the building and the application system equipment. The integrated wiring system is composed of different series and specifications of components, including: transmission media, related connection hardware (such as distribution frames, connectors, sockets, plugs, adapters) and electrical protection equipment. These components can be used to build various subsystems, each of which has its own specific purpose.

Seven parts of integrated wiring system

Work area; wiring subsystem; trunk subsystem; building group subsystem; equipment room; incoming line room and management. In fact, certain rules must be followed in the wiring work, and this law is not only reflected in the relevant codes and standards to be followed in the implementation of structured wiring projects.

Preparation before construction of integrated wiring

As a construction organizer, you must have a clear mind and a sense of responsibility. According to the completion time of the pipe groove and the time required for the installation and decoration of the subsequent wiring system, the threading schedule and quality assurance measures are listed. Threading inspection must be strictly performed before threading. For specific requirements, refer to the corresponding inspection requirements for pipe grooves. Pipe groove quality problems that seriously affect the quality and progress of the threading include: small specifications of pipe grooves; Etc. The buried pipe groove must be fully tried on before threading. The documents to be prepared include: wiring system diagram; wiring system plan; wiring technical requirements and blank wiring report.

Comprehensive wiring project implementation

First organize the threading organization. The key to organizing the threading is the construction organizer. The construction organizer should: understand the overall structure of the wiring system and do not run the wrong route; be able to clearly distinguish the various cables to be laid, do not use the wrong cable; Pass the pipeline, have rich experience in threading; know how to prevent typical problems that affect the quality and progress of the threading; understand the special requirements of cable laying in the integrated wiring system; clear thinking, group information points, laying out in groups, not many Wear, not miss; each group should not exceed 20 information points, otherwise the amount of cables put on and put on at the same time is easy to cause damage to the cable, and it is easy to be tangled and knotted, which greatly affects the progress; Record the length scale; strictly organize the test, and use the testing instrument to measure the on-off condition of each cable.

Threading should be performed in accordance with the requirements of the process. Pipe groove inspection, steel pipe with protective mouth, buried steel pipe try on. Explain the wiring system structure, the wiring process, the quality points and the protection of cables to all those involved in the wiring. Plan the grouping, route the cables in groups, and select the starting point for the group. The cable is shipped to the starting point, labeled, and the end of the distribution frame is marked. Pass this group to the distribution frame and leave the remaining length as required. Measure the length from the starting point to the socket end, cut off, label, and mark the socket end scale. The socket end is coiled in the socket box. Conduct a continuity test on each cable, make up for it, and modify the labeling error. Finally, sort the threading report and buckle the slot cover.

The remaining length of the wiring box from the entrance of the wiring cabinet is the length of the wiring cabinet (length + width + depth). Cabinets and cable trunking should be well organized. The remaining lines should be grouped according to the grouping table, and straightly bundled from the trunking exit, and the spacing between the binding points should not be greater than 50cm. Do not use wire or hard power cords. The turning radius of a 50-core cable should not be less than 162mm. When the vertical cable is transferred into the vertical steel pipe through the junction box and routed to the next layer, it must be tied and suspended in the junction box to prevent the cable weight from being fully pressed on the bent inner cable, which will affect the transmission characteristics of the cable. The cables laid in the trunking should be straight, no twisting, no different length.

The cables follow the design flat icon numbers, and each label corresponds to a 4-pair cable, and the corresponding room and socket location must not be mistaken. The position of the labels on both ends is 25 cm from the end, and light-colored plastic tape is affixed. Use oil-based pens to write the labels or sticker quality numbers and then wrap the transparent tape. In addition, at the end of the distribution frame from the end to the entrance of the wiring cabinet every 1 meter, the label should be attached to the cable sheath with a label paper and written with an oil-based pen. 4 pairs of twisted-pair cables are routed through a spare line at a rate of 3%, and the spare line is placed in the trunk trunk, with at least one spare line in each layer.

After the threading is completed, all 4-pair cables should be fully tested for continuity. Test method: Strip the core wires of the cables at both ends to expose the copper core. At one end, dial the digital multimeter to the continuity test position. The two test leads are steadily connected to a pair of cable cores. At the other end, touch the pair of cable cores briefly. If you can hear intermittent sounds at the watch end, then OK. 4 pairs of core wires of each cable shall be tested. The problems that can be found in such tests are broken wires, short circuits, and incorrect labeling. SS Corporation BD

Measures to ensure construction quality

1. To make detailed drawings at the design stage, drawings are important. Don't think that it is very simple. A good comprehensive wiring design drawing can save your wiring time and some on-site problems encountered in the wiring process, because not only the weak electricity in the building, but also strong electricity, fire protection, air conditioning, etc.

2. Make a construction plan during construction to cope with constant changes. Because sometimes plans can't keep up with change.

3. In time to understand the progress of other parts of the entire project in time to adjust the construction plan in a timely manner.

4. Strict construction. The lines must be neat and clear.

5. Make labels, or it will be miserable later.