Cabling standards more orderly construction of the seven points to share

Integrated wiring is a modular, highly flexible information transmission path within buildings or between buildings. Refers to the standard, unified and simple structured way to prepare and arrange various kinds of buildings (or buildings) within the various systems of communication lines, including network systems, telephone systems, monitoring systems, power systems and lighting systems. Therefore, the integrated wiring system is a standard and universal information transmission system, intelligent office building digital information system infrastructure. With the development of integrated wiring applications more and more. In addition to operating in accordance with the relevant wiring standards, the wiring process needs to be explored to facilitate the construction of the project and improve the construction efficiency. 1, the quality of raw materials, semi-finished products, equipment and other approach to the admission of materials, audit proof of the factory, technical certificate or quality certificate, sampling test. Raw material audit mainly focus on the cable material review. Generally, the main quality problems existing in the cable include: non-original cable (that is, fake cable), original cable no test report, no imported commodity inspection data and other issues. If you need to accurately judge the quality of the incoming cable, you should first master the original test report, the cable test parameters, and then take the cable samples and these parameters reported to the Quality Supervision Bureau to do testing to see if the test parameters are consistent with the original factory Test report the listed technical parameters, in order to determine whether the cable quality problems. Supervision of the scene often without the need for test equipment, the initial judge of the cable quality mainly to see, pinch, volume, tear method to achieve. A, look, is to look at the appearance of cable, cable standard, see the twisted pair of lines. Authentic cable marking print clear, handwriting neat, stranded twisted pair, stranded easily loose; counterfeit products printed on the cable logo fuzzy, rough writing, stranded non-uniform pairs, easy to loose. Even if you do not understand the performance of the product, through the comparison of cable identification and stranded degree can also determine the authenticity of the three cables. B, pinch, pinch the cable with the middle finger and thumb, good quality internal stranded cable more dense, pinch up a more substantial feeling of belonging to better quality products. C, the amount of caliper if the amount of single-core cable diameter, the general use of integrated wiring AWG wire gauge, AWG is the English acronym in English acronym, in addition to SWG (British Standard Wire Gauge), BWG (Birmingham Wire gauge), CWG (China wire gauge) and so on. The number in front of the wire gauge indicates the diameter of the transmission medium of the cable. Different numbers indicate different conductor diameters. The number of this number is generally from "0000" to "46" or higher. The higher the number, the smaller the conductor diameter. The conductor of 24AWG The diameter is 0.511 mm, which refers to the diameter of a copper conductor of a core of an 8-conductor twisted pair, generally 24 AWG or 22 AWG for the integrated part. According to the use of wire gauge caliper diameter, diameter less than the wire gauge, or uneven thickness is a shoddy line. The original production of each box should be 1000 feet standard size, about 305 meters, you can simply measure the distance between each mark is a reasonable size, if it is unreasonable description is shoddy. D, tear, the original production of the cable jacket is not easy to tear, the use of recycled plastic cable jacket thin and easily torn. 2. Major Sub-projects Before construction, the contractor should fill in the preparation conditions of construction conditions, such as construction technology, use of raw materials, labor force allocation and quality assurance measures, etc. After the supervision party investigates and verifies it, it may start the construction only after the consent is approved. This requires on-site supervision personnel to be well aware of the situation of construction workers, including whether the construction qualification certificate, with or without construction experience, whether the ability to have independent construction. 3, integrated wiring Auxiliary Project (sub-project) is the comprehensive wiring of the early works, but also the basis of integrated wiring project, its overall quality and maintainability directly affect the quality of integrated wiring project. Therefore, in the process of construction of integrated wiring aids engineering, the key parts should be sampled and checked at any time. If unqualified, rectification of construction units should be informed and records and reviews should be done. Sampling can be carried out in the terminal box before the installation of some of the pipeline trough inspection items, including: whether the trough to meet the regulatory requirements, trough installation is solid, there is no extra glitch inside the burr, groove junction with or without breaking, trunking And terminal box junction threading norms and so on. 4, all sub-projects (such as integrated wiring auxiliary project, terminal box installation, etc.) construction, construction units should be self-qualified, fill in the sub-project inspection application form, and attach the sub-project assessment form. 5, the hidden works (such as shafts, underdrains, etc.) to fill out a single hidden test report to the supervisor, supervision engineers must be strictly in accordance with each process for inspection, inspection qualified, the issuance of sub-project approval. Failure to issue supervision notice, and indicate the rectification project. 6, parameter testing. Comprehensive wiring project acceptance must go through rigorous parameter testing. Existing testing instruments, such as the commonly used FLUKE tester, generally have built-in testing standards. Since such testers are generally produced by foreign companies, the testing standard is usually EIA / TIA-568A or ISO11801. The test result form is usually a professional Terminology indicates that it is difficult to identify the meaning of test parameters for supervisors who do not understand professional knowledge. If you want to understand the test results, you should require professional supervisors to have the professional knowledge in this field. 7, the project completed and acceptance. Generally speaking, on the basis of qualified self-inspection by the construction unit, the construction unit should organize the supervision party, construction unit and design unit to carry out acceptance inspection on the project, but usually the construction unit will organize inspection and acceptance after inspection After the completion of the supervision by the issuance of the transfer certificate, and in accordance with the relevant provisions of the quality supervision department approved the project into the warranty phase. The above seven points is just a simple list of common wiring problems, in fact, a structured wiring or need to pay attention to many things. Suggest that you will understand the method applied to the actual construction, through the mastery, to explore more and more easy way.