Technical briefing is one of the necessary and important links in the technical preparation for wiring construction of weak current projects. Technical briefing must be conducted before construction. So what does the technical briefing contain? How to make the disclosure?

Technical briefing refers to the technical communication between the designer and the construction party about the basic situation, design ideas, construction drawings, construction and acceptance specifications, construction plans, construction organization design, construction safety requirements and Provide a comprehensive introduction to construction personnel in terms of measures, etc., so that personnel involved in project construction have a better understanding of the project design, building structure characteristics, technical requirements and construction technology.

1. Classification of disclosures

Technical disclosures for the wiring construction of weak current projects must be comprehensive and detailed. The actual situation of the project must be very clear, and the practical problems that need to be paid attention to in each part must be clarified, divided into majors. , conducted by project and section, generally divided into five categories: design, construction organization design disclosure, sub-project construction disclosure, design change disclosure, and safety construction disclosure.

1.1 Design briefing

Design briefing means that the general manager of the construction unit introduces the overall overview of the project, the main ideas of engineering design, the adopted design specifications, and engineering construction drawings to the construction personnel. , the construction methods of the main parts of the project, the requirements for the technology, processes, materials and equipment used in the construction, and the matters that should be paid attention to during the construction, ensuring that the construction personnel understand the construction technology and safety requirements of the main parts of the wiring project, and achieving the smoothness of the wiring project Construction to ensure the quality of wiring projects.

1.2 Construction organization design disclosure

Construction organization design disclosure means that the person in charge of the construction unit organizes the professional management personnel of the wiring construction to conduct the construction according to the wiring construction plan and construction drawings of the weak current project. Based on the characteristics of the project itself and the specific conditions of the construction site, relevant explanations are made beforehand. The main contents include: a. The construction methods, construction machinery and tools used in the construction, the attention requirements for the implementation plan, and the safety, quality, progress and civilized construction to be achieved. Objectives, etc.; b. How to cooperate and support relevant construction teams, management methods and measures for construction personnel; c. Requirements for the performance, entry time and use of construction machinery and tools, and the quantity, quality and entry time of construction materials Requirements; d. Skills and entry time requirements for the main labor force and technical workers; e. Construction process requirements and process standards, etc.

1.3 Technical briefing of sub-projects

A sub-project refers to a project that is composed of various parts of a unit project. For example, in a weak current project wiring project, there are optical cable laying, Cable laying and ground wire laying and other sub-projects. Sub-projects refer to various projects in a sub-project. For example, the optical cable laying sub-project includes pipe threading, outdoor cable erection, optical fiber splicing and other sub-projects. Sub-project technical briefing refers to the construction unit explaining the relevant construction requirements of each sub-project in the weak current engineering wiring. The main contents include: construction technology, construction and acceptance specifications, construction operations and other requirements, and the use of wiring construction materials. requirements, quality standards and technical safety measures for wiring construction, etc., as well as operational requirements for special processes and key parts.

1.4 Design change disclosure

Design change disclosure refers to the design changes that occur during the construction process. After the construction unit receives the design change notice, the person in charge of the design unit shall report the design change to the construction unit. The main contents of the design briefing conducted by the construction personnel of the unit include: the main reasons for the design change, the purpose of the change, the main content of the change, the changed construction drawing number, the changed location and the specific change method, the increase or decrease in cost caused by the change, etc.

1.5 Construction safety briefing

Construction safety briefing refers to the technical responsible person of the construction unit providing construction safety-related operating procedures, potential unsafe factors and safety technical measures adopted to the construction personnel. disclosure instructions. Construction personnel must abide by and implement them during construction to ensure the safety planning intentions during design. The main contents include: overview of the project and sub-projects, dangerous parts of the project and sub-projects and specific preventive measures. What should be done during construction Safety matters that should be paid attention to, safe operating specifications and procedures that construction personnel should abide by, measures that construction personnel should take when discovering hidden dangers, and avoidance and first aid measures that should be taken promptly after an accident occurs.

2. The main content of the disclosure

The main content of the disclosure of weak current engineering wiring construction technology can generally be divided into project overview description, project construction conditions, installation of system equipment, inside and outside the building The layout of cables and optical cables, the installation of cable terminals and system testing, etc.

2.1 Project Overview Description

The contents of the project overview description for weak current project wiring construction technology include: a. Description of the project overview, various technical and economic indicators and requirements; b. Describe the construction organization design, network plan, schedule requirements, construction deployment, construction machinery, labor arrangements and organization; c. Describe the construction technology, process, materials and acceptance specification requirements, implementation plans and related precautions used; d. Description of construction safety, specific measures and related precautions.

2.2 Project construction conditions

The technical explanation of the wiring construction of weak current projects mainly involves checking whether the construction environment, construction equipment, construction safety and fire protection meet the construction design Require. In terms of the construction environment, check whether the ground, walls, doors, power sockets and grounding devices during civil construction meet construction requirements; check whether the area of ??the machine room and reserved holes in civil construction processes meet the design requirements; check whether the construction power supply is safe and reliable and meets the construction requirements. Requirements; Check whether the laying of indoor movable floor meets the construction design requirements. In terms of construction equipment, check whether its appearance, specifications, variety, and quantity meet the construction design requirements; sample and test whether the electrical performance of the construction cables meets the construction design requirements; test whether the characteristics of the construction optical fibers meet the construction design requirements. In terms of construction safety and fire prevention, it is required to learn and master construction safety knowledge, regulations and emergency response, as well as the use of fire-fighting equipment; it is required to have instructions on the stacking of hazardous materials; it is required to have fire prevention measures such as reserved holes.

2.3 Installation of system equipment

The installation of system equipment mainly includes the installation of equipment racks and the installation of information sockets. The content of the technical briefing on the installation of equipment racks in the wiring construction of weak current projects includes: descriptions of the specifications, programs, and appearance requirements of the equipment racks; descriptions of the installation sag and level requirements of the equipment racks; descriptions of the equipment racks after installation. Description of the requirements for surface paint and related markings; description of the tightening requirements for various screws of the equipment rack; description of the requirements for earthquake-proof reinforcement measures for the equipment rack; description of the requirements for grounding measures for the equipment rack, etc. Contents related to the installation of information sockets include: instructions on the specifications, location, and quality requirements of the information sockets used in construction; instructions on how various screws must be tightened after the information sockets are installed; and relevant signs on the information sockets after they are installed. A complete description is required; a description of the installation process requirements for the information socket; especially a description of the requirements for reliable connection of the shielding layer.

2.4 The layout of cables and optical cables in the building

The layout of cables and optical cables in the building mainly includes the installation of cable trays and ducts and the laying of cables. The content of the technical briefing on the installation of cable trays and channels in the wiring construction of weak current projects includes: according to the construction drawings, on-site description of the installation positions of the cable trays and channels; explanation of the installation process requirements of the cable trays and channels; explanation of the installation location of the cable trays and channels; Grounding measures required. Contents related to cable laying include: description of specifications, routing and location of cables according to design requirements; description of cable laying process requirements.

2.5 Layout of cables and optical cables between buildings

The layout of cables and optical cables between buildings mainly includes overhead cables, pipeline cables, buried cables, tunnel cables, etc. of deployment. The content of the technical briefing on the layout of overhead cables in weak current engineering wiring includes: description of hanging wire specifications, erection positions, and installation specification requirements; description of hanging wire sag requirements; description of cable specification requirements; description of clamping and hanging Description of spacing requirements; description of cable introduction process requirements. Contents related to the layout of pipeline cables include: instructions on the hole location requirements for the use of pipe holes; instructions on cable specifications, directions, and quality requirements for the installation of protective facilities. Contents related to the laying of buried cables include: description of cable specifications and quality requirements for the installation of protective facilities; description of cable laying location and depth requirements; description of quality requirements for return soil compaction. Contents related to tunnel cable laying include: description of cable specifications, installation locations, and routing requirements; description of civil engineering process requirements. In addition, there are also instructions on the spacing requirements between communication lines and other facilities and instructions on the installation and construction quality requirements of the entrance room.

2.6 Cable Terminals

The information about cable terminals in the wiring construction technology of weak current projects includes: an explanation of the process requirements for information sockets; an explanation of the process requirements for wiring modules; Description of the process requirements for optical fiber sockets; description of the process requirements for various types of jumpers.

2.7 System Test

The contents of system test related to the weak current engineering wiring construction technology include: based on the construction acceptance specifications, the performance test requirements for cables and optical fibers and the system Description of test requirements for grounding.

3. Implementation methods of disclosure

There are usually four methods of implementation of technical disclosure of wiring construction in weak current projects, including meeting disclosure, written disclosure, construction sample disclosure and job technical disclosure.

3.1 Meeting briefing

Meeting briefing refers to the technical briefing by the person in charge of the construction unit on the construction matters of the weak current engineering wiring project at the meeting (such as construction organization design, introduction of construction plan, etc.) , put forward specific construction progress, implementation methods and requirements. At the same time, the technical personnel in charge can give detailed explanations on key details, and the quality and safety personnel in charge can provide detailed explanations on construction quality and technical safety measures. Each construction team can explain any unclear issues in the technical briefing. Or raise questions about issues that pose great difficulties during the implementation process. The meeting should answer relevant questions one by one to ensure clear explanations.

3.2 Written disclosure

Written disclosure refers to the technical personnel of the construction unit based on the project construction organization design or construction plan, and in accordance with the relevant technical regulations, quality standards and safety requirements in the construction and acceptance specifications. , combined with the actual situation of the project, write out written technical disclosure materials in several copies, and provide technical disclosure to the construction personnel.

After accepting the technical disclosure, the construction team leader and the technical responsible person must sign the disclosure record. One copy will be implemented by the construction team, one will be stored in the construction technical file, and one will be retained by the technical team.

3.3 Construction sample disclosure

Construction sample disclosure refers to the construction work carried out by the construction unit with a high technical level based on the technical requirements and construction plan of the design drawings and on the premise of construction and acceptance specifications. personnel, make a model that meets the quality standards, and serve as a physical model for other construction personnel to learn and refer to, so that the construction personnel can understand and master the characteristics of the technologies, processes, materials and tools mainly used in construction, master the construction operation steps and essentials, and be familiar with the construction Process requirements and quality standards.

3.4 Job technical communication

Job technical communication refers to the reasonable cooperation of different processes and positions in order to ensure the operational quality of different processes and positions in the wiring construction of weak current projects. The construction unit shall formulate operating process requirements based on the construction organization design and construction plan, and provide job descriptions to the construction personnel in written or oral form based on the actual conditions of the construction site, and explain specific operating requirements and safety requirements.

IV. Issues that should be paid attention to when making disclosures

The construction and installation of weak current engineering wiring is a strictly standardized process and is an important factor that determines the application quality of the network. A good technical explanation of the wiring construction of weak current projects is the prerequisite for ensuring the quality of construction. The technical explanation of wiring construction of weak current projects has many contents and a wide range, and there are many issues that need to be paid attention to. The main issues are summarized as follows:

(1 ) The technical disclosure of wiring construction for weak current projects must strictly implement the construction and acceptance specifications and regulations, and the requirements and quality standards in the construction and acceptance specifications and regulations must not be arbitrarily modified or deleted.

(2) The technical explanation of the wiring construction of weak current projects must comply with the technical requirements in the design and construction drawings, as well as the requirements of the construction organization design or construction plan, including technical measures and construction schedule requirements.

(3) For construction personnel at different levels, according to the depth and detail of technical explanations, use appropriate depth of content and explanation methods to carry out reasonable and effective explanations to different personnel in a targeted manner to ensure that construction Comprehensive understanding of personnel.

(4) The technical explanation of the wiring construction of weak current projects must be comprehensive and clear, and the key points must be highlighted. The operating procedures, implementation standards, adopted technologies, construction techniques, quality standards and safety precautions must be explained in detail. Can't be vague.

(5) The technologies, processes and materials used in the wiring construction of weak current projects must be explained in detail, and detailed technical explanations must also be carefully conducted on sub-projects, special parts and hidden projects that are easily overlooked.

(6) The written technical disclosure in the wiring construction technical disclosure of weak current projects must be carefully reviewed, a manuscript must be kept, the handwriting must be neat and clear, the data quotation must be correct, and the issuer, reviewer and person of the written disclosure must be The recipient must sign and stamp.

5. Summary

Technical communication is a very important technical management work for the construction unit. This article is based on the specific reality of the wiring construction of weak current projects and provides the technical explanation for the wiring construction of weak current projects. The definition, classification, content, requirements, implementation methods and issues for attention are elaborated. The purpose is to enable the relevant personnel in the wiring construction of weak current projects to have a preliminary understanding of the technical explanation of wiring construction in weak current projects, so as to facilitate orderly construction and reduce various Construction operation errors can help improve construction quality.

Necessary links, what is included in the technical explanation of weak current engineering