Acceptance and identification of integrated wiring project

Acceptance and identification of integrated wiring project

9.1 The final work of the integrated wiring project

1. The final work of the integrated wiring project

(1) Clean up the site and keep it clean and beautiful.

(2) Repair the exchanges such as wall holes and shafts.

(3) Collect all kinds of surplus materials, put the surplus materials in one place, and register their usable quantity.

(4) Write a summary report.

2. The main contents of the summary report are as follows:

⑴ Construction report; ⑵ Network document; ⑶ Use report; ⑷ Acceptance report.

9.2 Composition of network documents

9.2.1 Network structure document

Main contents: network logical topology structure diagram; network segment association diagram; network equipment configuration diagram; IP address allocation table.

9.2.2 Network wiring documentation

â‘´ Network wiring logic diagram;

⑵ Network wiring engineering drawing (physical drawing);

⑶ Test report (provide wiring diagram of each node, length, attenuation, near-end crosstalk and fiber test data);

â‘· Comparison table between patch panel and information socket;

⑸ Comparison table of interface between patch panel and hub;

⑹ Connection table between hub and equipment;

⑺ Optical fiber wiring table.

9.2.3 Network system documentation

â‘´ Server documentation, including server hardware documentation and server software documentation.

⑵ Network equipment documentation. Network equipment refers to workstations, servers, repeaters, hubs, routers, switches, bridges, network cards, etc.

⑶ Network application software documentation.

â‘· User permission table.

9.3 Acceptance of the integrated wiring project

The acceptance of the integrated wiring project is a formal procedure handed over by the construction to the user, and is also the user's approval of the project.

1. The difference between acceptance and identification

â‘´ Acceptance is the user's approval of the construction work of the integrated wiring project, and checks whether the project construction meets the design requirements and relevant construction specifications.

⑵ Appraisal is to evaluate the level of engineering construction.

⑶ Acceptance is generally carried out in two parts, the first part is physical acceptance, and the second part is document acceptance.

â‘· The appraisal is jointly conducted by the expert group and Party A and Party B.

2. Acceptance personnel involved in the project

â‘´ The person in charge of the administration of both units of the project;

⑵ Relevant direct management personnel and project supervisor;

⑶ Supervisors of major engineering projects;

â‘· Relevant technical personnel of architectural design and construction unit;

⑸ Expert group composed of third-party acceptance agencies or related technical personnel

3. The acceptance of the integrated wiring system should follow the following regulations

â‘´ The acceptance of the project shall be carried out according to the contents specified in the design documents and the contract.

⑵ The construction, installation, testing and acceptance of the integrated wiring system must comply with the corresponding technical standards, technical requirements and national standards.

⑶ During the construction process, the construction unit must implement the regulations on construction quality inspection. The construction unit shall strengthen the on-site quality inspection of the construction site by the construction site representative or project supervisor, and timely organize the inspection and visa work of the hidden project.

â‘· The content and method of the completed acceptance project should be handled in accordance with relevant specifications.

⑸ The construction operation regulations shall implement relevant specifications.

⑹ The acceptance of the integrated wiring system project shall comply with the relevant national standards

9.3.1 Measures to be taken through acceptance

To ensure the quality of the project, the necessary measures should be taken from the following aspects.

1. Product quality assurance

2. Design guarantee

3. Construction quality assurance

The construction team should take the certificate to work, and should strengthen supervision and supervision during the construction process. Pay attention to the following aspects to ensure the construction quality:

â‘´ Formulate operation regulations;

⑵ Tension should not be too large during construction;

(3) Calculate the cross-sectional area of ​​concealed pipes and trunking to determine the utilization rate;

â‘· As far as possible, the termination of the cable should be kept in a twisted state.

4. Engineering testing and acceptance

Engineering test and acceptance refers to formulating the content of acceptance according to the specific conditions of the project, and performing performance tests on each wiring link according to the requirements of the standard. During this period, special attention was paid to the acceptance of concealed works implemented in civil engineering projects.

9.3.2 Contents of acceptance of the integrated wiring project

1. Environmental inspection

Environmental inspection refers to the inspection of the construction and environmental conditions of the management room, equipment room, and work area.

Check content:

(1) Whether the civil works of the management room, equipment room and working area have all been completed; whether the floor of the house is flat and smooth; whether the height and width of the door hinder the transportation of equipment and equipment; whether the door lock and key are complete

⑵ Whether the location, number and size of the pre-buried underground trenches, hidden pipes, holes and shafts of the houses meet the design requirements.

(3) Whether the ground of the raised floor and anti-static measures of the raised floor meet the design requirements.

â‘· Whether 220V single-phase power socket with ground is provided in the management room and equipment room.

⑸ Whether a reliable grounding device is provided in the management room and equipment room. When setting the grounding body, check whether the grounding resistance value and the grounding device meet the design requirements.

⑹Whether the area of ​​management room and equipment room, ventilation and ambient temperature and humidity meet the design requirements.

2. Equipment inspection

Equipment inspection mainly refers to the inspection of various wiring materials, including various cables, connectors, pipes and auxiliary accessories.

(1) Device inspection requirements

â‘  The model, specification, quantity and quality of the cable equipment used in the project should be inspected before construction, and materials without factory inspection certificate shall not be used in the project.

â‘¡ The inspected equipment should be recorded, and the unqualified devices should be stored separately for verification and processing.

â‘¢ The cables and equipment used in the project should conform to the requirements of the order contract or the specifications, model and grade of the sealed product.

â‘£ Spare parts, spare parts and various materials should be complete.

(2) Inspection requirements for profiles, pipes and iron parts

â‘  The materials, specifications, and models of various profiles should meet the requirements of the design documents, and the surface should be smooth and smooth, and must not be deformed or broken.

â‘¡ When the pipe is made of steel pipe or rigid polyvinyl chloride pipe, the pipe body should be smooth, free from scratches, no deformation of the pipe hole, and the hole diameter and wall thickness should meet the design requirements.

â‘¢ When cement pipes are used for pipelines, they should be inspected in accordance with the relevant regulations in the construction and acceptance of communication pipeline engineering.

â‘£ The materials and specifications of various iron parts should meet the quality standards, and there should be no skew, twist, flying thorn, breakage or damage.

⑤ The surface treatment and coating of the iron parts should be uniform and complete, and the surface should be smooth and clean without defects such as shedding and air bubbles.

(3) Cable inspection requirements

â‘  The types and specifications of twisted pair cables and optical cables used in the project should meet the design requirements and contract requirements.

â‘¡ The contents of the signs and labels attached to the cable should be complete and clear.

â‘¢ The outer sheath of the cable must be intact and the cable should be accompanied by a certificate of factory quality inspection.

â‘£ The electrical performance of the cable shall be sampled from any three reels in this batch of cables by a length of 100m, and the selected connectors in the project shall be sampled and recorded.

⑤ After opening the optical cable, you should first check whether there is any damage on the surface of the optical cable, and whether the optical cable end is well sealed.

â‘¥ When the optical cable is used in the integrated wiring system project, the optical cable qualification certificate and its inspection test data should be checked.

⑦ When checking the optical fiber patch cord (optical jumper), it should meet the following requirements

1) The end faces of the movable connectors (splices) at both ends of the optical fiber patch cord should be equipped with appropriate protective caps.

2) The type of optical fiber in each optical fiber patch cord should be clearly marked, and it should meet the design requirements when the optical fiber patch cord is selected.

(4) Inspection requirements for connectors

â‘  The components of the wiring module, information socket and other connectors should be complete, and the plastic material should be checked to meet the design requirements.

â‘¡ The indicators of the overpressure and overcurrent protection of the security unit shall comply with the relevant regulations.

â‘¢ The use form, quantity and position of the connector of the optical fiber socket should be consistent with the design.

(5) Regulations on the use of wiring equipment

â‘  The models and specifications of optical cables and cable transfer equipment should meet the design requirements.

â‘¡ The arrangement and name of the optical cable and cable transfer equipment should be consistent with the design. All kinds of signs should be unified, and the position of the signs should be correct and clear.

3. Equipment installation check

(1) Installation requirements of cabinets and racks

â‘  After the cabinet and rack are installed, the vertical deviation should not exceed 3mm. The installation positions of cabinets and racks should meet the design requirements.

â‘¡ Various parts on the cabinet and rack shall not fall off or be damaged. If the paint surface falls off, it shall be repainted, and all signs shall be complete and clear.

â‘¢ The installation of cabinets and racks should be firm. If there are seismic requirements, they should be reinforced according to the seismic design of the construction drawings.

(2) Installation requirements for various wiring components

â‘  All components should be complete, installed in place and complete with signs.

â‘¡ The mounting screws must be tightened, and the panel should be kept on a flat surface.

(3) Installation requirements for 8-bit modular universal socket

â‘  It should be installed on the raised floor or ground, and fixed in the junction box. The socket panel should be upright and horizontal. The junction box cover can be opened, and it should be waterproof, dustproof, and pressure resistant. The cover of the junction box should be flush with the ground.

â‘¡ The installation position of 8-bit modular universal socket, multi-user information socket or quick assembly point wiring module should meet the design requirements.

â‘¢ The fixing method of 8-bit modular universal socket base box should be determined according to the conditions of the construction site, and it should be fixed by preset expansion screws.

â‘£ The fixing screws need to be tightened, and no looseness should occur.

⑤ Various socket panels should be marked with colors, graphics, and text to indicate the type of terminal equipment connected.

(4) Installation requirements for cable trays and trunking

â‘  The installation position of the bridge frame and the wire groove should meet the requirements of the construction drawings, and the left and right deviation should not exceed 50mm;

â‘¡ The deviation of the horizontality of the bridge and the wire groove should not exceed 2mm per meter;

â‘¢ The vertical bridge and the wire groove should be kept perpendicular to the ground, and there should be no inclination, and the deviation of the verticality should not exceed 3mm;

â‘£ The trough cutoff and the joint between the two troughs should be smooth and free of burrs;

⑤ The hanger and bracket should be installed vertically, neatly and firmly, without skew;

â‘¥ There should be good contact between the metal bridge frame and the trunk section, and the installation is firm.

(5) The grounding body used for installing cabinets, racks, shielding layers of wiring equipment, metal steel pipes, and wire ducts should meet the design requirements, be grounded nearby, and maintain good electrical connections.

4. Cable laying and protection method inspection

(1) Provisions for cable laying

â‘  The type and specifications of the cable should conform to the design regulations.

â‘¡ The cable should be laid naturally straight, without twisting, twisting, joints, etc., and should not be squeezed and damaged by external forces.

â‘¢ Labels should be affixed to both ends of the cable, and the number should be marked. The label writing should be clear, correct, and correct. The label should be made of materials that are not easily damaged.

④ There should be a margin after the cable is terminated. The reserved length of the twisted pair cable between the transfer room and the equipment room should be 0.5 ~ 1.0m, and the working area should be 10 ~ 30mm; the length of the optical cable should be 3 ~ 5m. If there are special requirements, the length should be reserved according to the design requirements.

⑤ The bending radius of the cable should meet the following requirements

1) The bending radius of unshielded 4-pair twisted pair cable should be at least 4 times the outer diameter of the cable.

2) The bending radius of the shielded 4-pair twisted pair cable should be at least 6 to 10 times the outer diameter of the cable.

3) The bending radius of the trunk twisted pair cable should be at least 10 times the outer diameter of the cable.

4) The bending radius of the optical cable should be at least 15 times the outer diameter of the optical cable.

● The power cables and the cables of the integrated wiring system should be laid separately, and the minimum clear distance between the cables should meet the design requirements and should meet the regulations, as shown in Table 9.1.

● The minimum clear distance between the laying of cables and optical cables in the building and other pipelines should meet the requirements, as shown in Table 9.2.

● After laying the cables in concealed pipes or trunkings, it is advisable to block them at the exits of the two ports of the channel with filler materials.

(2) Provisions for laying cables in pre-buried trunking and buried pipes:

â‘  It is advisable to use signs to indicate the number and length of the two ends of the laying duct.

â‘¡ When laying concealed pipes, steel pipes or flame-retardant rigid PVC pipes should be used.

(3) Provisions for installing cable trays and trunking cables:

â‘  The cable trough and bridge should be higher than 2.2m above the ground; the top of the trough and bridge should not be less than 30mm from the floor; at the lintel or other obstacles, it should not be less than 50mm.

â‘¡ The cables in the trough should be laid straight and not crossed as much as possible. The cables should be tied and fixed at the entrance and exit of the trough and at the turning points. The horizontal part of the cables can be unbundled.

â‘¢ When the cable is laid vertically in the cable bridge, the upper end of the cable and every 1.5m should be fixed on the bracket of the bridge; when it is laid horizontally, it should be fixed at the beginning, end, turn and every 5-10m .

â‘£ When laying cables in horizontal and vertical bridges and vertical cable troughs, the cables should be bundled.

⑤ The optical cable in the building should be laid in the metal trunking. When laying the bridge, a cushion cover should be added in the binding and fixing section.

(4) When laying cables in the ceiling by using suspended ceiling support columns as cables, cables within the scope of each support column can be laid without cable channels, but they should be bundled and bundled. The cable sheath should be flame retardant, and the cable selection should meet the design requirements.

(5) The construction technical requirements of the building group subsystem using overhead, pipeline, direct buried, wall and buried pipe laying cables and optical cables shall be implemented in accordance with the relevant regulations on the acceptance of local communication network engineering.

(6) Laying protection requirements for horizontal subsystem cables:

● The protection requirements for embedded metal wire ducts are

â‘  The pre-embedded trunking in the building should be set as a single layer. There should not be more than three embedded trunkings per route, the section height of the trunking should not exceed 25mm, and the total width should not exceed 300mm.

â‘¡ When the length of the wire channel is more than 30m or when there is a cross or a turn in the wire channel, a cable box should be installed to facilitate cable routing and maintenance.

â‘¢ The cable box cover can be opened and flush with the ground. The box cover should be waterproof.

â‘£ The cover of the cable box and junction box should be able to withstand pressure.

⑤ The cable from the metal trunking to the information socket junction box should be laid with metal hose.

● The protection requirements for buried pipes are:

â‘  The maximum pipe diameter pre-buried in the wall should not exceed 50mm, and the maximum pipe diameter of concealed pipes in the floor should not exceed 25mm.

â‘¡ The line box device should be installed every 30m of the straight pipe.

③ The turning angle of the concealed pipe should be greater than 90 °, and the turning angle of each concealed pipe in the path should be no more than two, and no S-bend should appear.

â‘£ The radius of curvature of the dark pipe turning shall not be less than 6 times the outer diameter of the pipe.

⑤ The mouth of the concealed pipe should be smooth and protected by a mouth guard. The protruding part of the mouth should be 25-50mm.

● The requirements for laying and protecting the network floor cable are:

â‘  There should be communication between the trunks.

â‘¡ The trunking cover should be openable and made of metal.

â‘¢ The width of the main line slot is determined by the width of the network floor cover plate, and it is generally about 200mm; the width of the branch line slot should not be less than 70mm.

â‘£ Floorboards should be resistant to pressure, impact and flame retardant.

● The protection requirements for setting up cable trays and cable ducts are:

â‘  When the bridge is laid horizontally, the support spacing is generally 1.5 to 3m; when laid vertically, the spacing fixed on the building should be less than 2m, and the metal cover should be added to protect the part below 1.8m from the ground.

â‘¡ When laying the metal trunking, install brackets or hangers at the joints of the trunking, at a distance of 3m, at a distance of 0.5m from the exits of both ends of the trunking and at the turning point.

â‘¢ The distance between the fixed points of the plastic trunking is generally 1m.

● When laying cables, if using a raised floor, the clearance in the raised floor should be 150-300mm.

● When the public column is used as the ceiling support column, cables can be laid in the column.

● The grounding of the metal trunking should meet the design requirements.

● When metal wire ducts and cable trays pass through walls or floor slabs, fire prevention measures should be taken.

(7) The protection requirements for the laying of trunk cable are:

â‘  Cables shall not be laid in elevators or shafts for water supply, gas supply and heating pipes, nor in shafts for strong electricity.

â‘¡ There should be communication between trunk channels.

(8) The way of laying and protecting the cables of building group subsystems should meet the design requirements.

5. Cable termination check

(1) The cable termination shall meet the following requirements

â‘  Before the cable is terminated, you must check whether the content of the cable identification is correct.

â‘¡ No joints are allowed in the middle of the cable.

â‘¢ The cable termination must be firm and in good contact.

â‘£ The cable termination shall comply with the design and construction operation regulations.

⑤ When connecting the twisted pair cable and the connector, the wire number and the color code of the wire position should be recognized, and it should not be reversed or misconnected.

(2) The termination of the twisted pair cable core wire should meet the following requirements

During termination, each pair of twisted pairs should remain twisted, and the length of twisted loosening should not be greater than 13mm for Category 5 cables.

(3) The termination of the optical cable core shall meet the following requirements:

â‘  The optical fiber connection box should be used to connect and protect the optical fiber. The bending radius of the optical fiber in the connection box should meet the requirements of the installation process.

â‘¡ The fusion splice of the optical fiber should be protected and fixed, and the connector should be used to facilitate the optical fiber jumper.

â‘¢ The panel of the fiber optic connection box should be marked.

â‘£ The fiber connection loss value should meet the requirements shown in Table 9.3.

(4) The termination of various jumpers should meet the following requirements:

â‘  The contact between various jumper cables and connectors should be good, the wiring is correct, and the signs are complete. The type of jumper should meet the system design requirements.

â‘¡ The length of various types of jumpers should meet the design requirements. Generally, the twisted pairs of twisted cables should not exceed 5m, and the jumpers of optical cables should not exceed 10m.

6. Engineering electrical testing

â‘´ The electrical test of the integrated wiring project includes the electrical performance test of the cable system and the performance test of the optical fiber system. The content of the cable system test is the basic test item and the optional test item. Each test should have detailed records as part of the technical documentation for completion.

⑵ The electrical performance tester should meet the requirements shown in Table 9.4 according to the second-level accuracy.

(3) The on-site tester should be able to test Category 3 and Category 5 twisted pair cabling systems and optical fiber links.

â‘· The test instrument should have an output port to output all stored test data to the computer and printer, and perform maintenance and document management.

⑸ Cable and optical cable test instruments should have a certificate of conformity and measurement.

7. Acceptance of various documents

Document acceptance is mainly to check whether Party B delivers the required documents according to the requirements of the agreement or contract. The technical data files for the completion of the integrated wiring system project must ensure quality, clean appearance, complete content and accurate data, mainly including the following:

(1) The main installation quantity of the integrated wiring system project, such as the cable specifications and length of the backbone wiring, the specifications and the number of installed floor distribution frames, etc.

⑵ In the installation and construction, the construction instructions of some important parts or key paragraphs, such as the division and capacity of the connection terminals of the building group distribution frame and the building distribution frame when they are used together.

(3) A detailed list of the number of equipment, racks and main components, that is, statistics on the equipment, racks and main components used in the entire project, clearly listing their models, specifications, programs and quantities.

â‘· When there is a small amount of modification to the construction shed, the original engineering design drawings can be used to modify and supplement, and there is no need to redo the completion drawings. However, if there are major changes during construction, a separate completion drawing shall be made.

⑸ Test records of various technical indicators and technical requirements in the integrated wiring system project, such as the main electrical performance of the cable and the optical transmission characteristics of the optical cable.

⑹ Visas approved by engineering supervisors for concealed projects such as direct buried cables or underground cable ducts, as well as the original records such as the certificates of the site representatives or engineering supervisors following inspections when the equipment installation and cable laying procedures come to an end.

⑺ If computer-aided design is adopted in the integrated wiring system project, program design instructions and related data, as well as operating instructions, user manuals and other documents should be provided.

â‘» During the construction process, due to various objective factors, when partially changing or modifying the original design or taking relevant technical measures, the consultation record of these changes between the construction, design and construction units, as well as the Basic information such as inspection records.

8. Check the timing of acceptance

During the construction of the integrated wiring project, the inspection and acceptance work should be carried out throughout, so as to ensure that unqualified items can be found in time, as soon as possible to identify the cause, clarify responsibilities, and propose solutions to avoid serious losses. For the entire integrated wiring project, the contents and items shown in Table 9.5 should be checked.

Table 9.5 Comprehensive wiring system engineering inspection items and contents

stage

Acceptance items

Acceptance content

Acceptance method

1. Before construction

1. Environmental requirements

(1) Land construction situation: ground, wall, door, power socket and grounding device;
(2) Civil engineering technology: machine room area, reserved holes;
(3) Construction power supply;
(4) Floor laying

Check before construction

2. Equipment inspection

(1) Appearance;
(2) Model, specification and quantity;
(3) Cable electrical performance;
(4) Fiber characteristics

Check before construction

3. Fire safety requirements

(1) Fire fighting equipment;
(2) Stacking of dangerous materials;
(3) Fire protection measures for reserved holes

Check before construction

Second, equipment installation

1. Management room, equipment room, equipment cabinet and rack

(1) Specifications and appearance;
(2) Install vertical and horizontal degrees;
(3) The paint shall not come off;
(4) Various screws must be tightened;
(5) Anti-seismic reinforcement measures;
(6) Grounding measures

Inspection on job

2. Wiring components and 8-bit modular universal socket

(1) Specification, location, quality;
(2) Various screws must be tightened;
(3) Complete signs;
(4) The installation meets the technological requirements;
(5) Reliable shield connection

Inspection on job

3. Laying of cables and optical cables (in the building)

1. Cable tray and cable trough

(1) The installation position is correct;
(2) The installation meets the technological requirements;
(3) Meet the technical requirements for laying cables;
(4) Ground

Inspection on job

2. Concealed laying of cables (including concealed pipes, cable ducts, floors, etc.)

(1) Cable specifications, routing, location;
(2) Meet the technical requirements for laying cables;
(3) Ground

Concealed Engineering Visa

4. Laying of cables and optical cables (inter-building)

1. Overhead cable

(1) Hanging wire specifications, erection location, installation specifications;
(2) Hanging wire sag;
(3) Cable specifications
(4) Card and hanging interval;
(5) The introduction of cables meets the technological requirements

Inspection on job

2. Pipeline cable

(1) Use the hole position of the pipe hole;
(2) Cable specifications;
(3) Cable direction;
(4) Installation quality of cable protection facilities

Concealed Engineering Visa

3. Buried cable

(1) Cable specifications;
(2) Laying position and depth;
(3) Installation quality of cable protection facilities;
(4) Compacted quality of soil

Concealed Engineering Visa

4. Tunnel cable

(1) Cable specifications;
(2) Installation location and routing;
(3) The civil design meets the technical requirements

Concealed Engineering Visa

5. other

(1) The distance between the communication line and other facilities;
(2) Quality of installation and construction of incoming room

On-the-go inspection or concealed engineering visa

9.3.3 Principles for the acceptance basis of the integrated wiring project

(1) The integrated wiring system project should be checked and accepted in accordance with the link performance requirements specified in "Part 1 of the Building Communication Integrated Wiring System: General Specifications" (YD / T926.1-1997).

(2) The content and method of the project completion acceptance project should be implemented in accordance with the "Code for Acceptance of Construction and Building Group Integrated Wiring System Engineering" (GB / T50312-2000).

(3) The electrical performance acceptance test of the cable link of the integrated wiring system should be handled in accordance with the provisions in the "General Test Method for Electrical Characteristics of the Integrated Wiring System" (YD / T1013-1999).

(4) In addition to the above specifications, the acceptance of the integrated wiring system project should also comply with China's current "Local Network Communication Line Engineering Acceptance Code" (YD5051-1997) and "Communication Pipeline Engineering Construction and Acceptance Technical Code" (YDJ39- 1997).

(5) In the construction and acceptance of the integrated wiring system, if you encounter technical indicators and technical requirements not included in the above specifications, in order to ensure acceptance, you can follow the requirements of the relevant design specifications and design documents.

(6) Since there are still many technical problems in the integrated wiring system project that need further study, some standards have not been perfected, and will be further revised or supplemented with the development of integrated wiring system technology.

9.4 Identification of integrated wiring works

9.4.1. Appraisal materials

Before the appraisal meeting, Party B (constructor) must prepare the following materials for the appraisal meeting:

â‘´ Construction report of network integrated wiring project;

⑵ Test report of network integrated wiring project;

⑶ Network comprehensive wiring project data review report;

â‘· User opinion report of network integrated wiring project;

⑸ Acceptance report of network integrated wiring project.

1. Comprehensive wiring project construction report

Content: It is mainly to introduce the characteristics of the project and the overall situation of design, construction and quality assurance.

(1) Project overview introduces the undertaking company and the implementation company of the project; the start time and schedule of the project; the determination and review of the project plan.

(2) Engineering design and implementation

1) Design goals and guidelines

Briefly introduce the design goals of the project, the corresponding technical solutions and the basis for the selection. For example, the design goal of the project is to build an infrastructure that can realize resource sharing within a unit, and adopts the networking technology of Fast Ethernet.

2) Design and implementation of building structured wiring

Introduce the building involved in the wiring project, the setting of the network management center, the connection medium and connection technology between the network management center and the building.

3) The design requirements introduce the topology of the network, the types of cables used, pipeline technology and materials.

4) To introduce the structure of the wiring system between buildings, the number of information points in each building, the number of installed information sockets, etc.

5) Quality and test of wiring.

Introduce the means of ensuring quality, such as timely communication with the user; the hidden project has a visa from the supervisor; the quality test of network access user points and related lines.

6) The test tool selected for the wiring test, whether the test result is qualified, and give a test result report.

(3) The engineering characteristics mainly explain the engineering characteristics from the advanced nature, scalability and manageability of the system.

(4) Project document The project undertaker provides the document details to the user.

(5) Summary of experience of the concluding remarks, and thank you to the relevant assistants.

2. Comprehensive wiring engineering test report

Mainly introduce the test content, including material selection, construction quality, technical parameters of each information point and so on.

1) Wire inspection.

It mainly introduces the specifications and standards of the selected materials (copper cables, optical cables, information sockets). Such as the use of unshielded category 5 twisted pair that meets ANSI / TIA / EIA 568-D standards, fiber optic cables that comply with 100Bas-FX, ANSI / TIA / EIA568-B, IEEE 802, and IEC standards.

2) Inspection of the bridge and the wireway.

Whether the metal bridge frame and the open wire groove are beautiful and stable, whether the wiring position is reasonable, and whether the overall structure of the building is affected during the construction process.

3) Information point parameter test. Introduce selected test instruments and test parameters, and give test records.

4) Conclude whether the wiring project meets the design requirements and whether it can be delivered for use.

3. Comprehensive wiring project data review report

In this report, it is necessary to list the details of the engineering and technical information provided by the construction party to the user, and to determine whether the information is complete and complete; at the same time, there must be a list of the members of the data review team and the signature of the team members.

4. Trial comments from users of integrated wiring projects

The user trial opinion refers to the preliminary conclusions drawn after the user trial, including whether the system is designed reasonably, whether the performance is reliable, whether it is practical and safe, whether it can meet the user's requirements for the system, etc., and has the user's signature.

5. Acceptance report of integrated wiring project

In this report, the composition of the acceptance team is mainly given, and the acceptance opinions given by the acceptance team after the data review and on-site site visit are given.

The evaluation can be given from the following aspects: the scale of the engineering system; the advanced nature of the engineering technology and the rationality of the design; whether the construction quality meets the design standards; whether the documentation is complete. Finally, the conclusion of whether to pass the acceptance is given, and the list of members of the engineering acceptance team and the signature of the members must be attached.

9.4.2 Appraisal meeting

1. Preparation for the appraisal meeting

The experts hired by the appraisal committee should generally have senior professional technical titles, have rich theoretical knowledge and practical experience, and have good professional ethics. Ten days before the appraisal meeting, the notice and a full set of technical materials for the appraisal meeting should be sent or sent to the experts who are invited to participate in the appraisal work, and do not send the materials temporarily during the appraisal meeting. If on-site testing is required, the test team experts must complete the test work and write a test report before the appraisal meeting. The test report must be signed by the test team experts.

The organizer of the appraisal meeting should make preparations for the meeting affairs. The chairman and deputy director of the appraisal unit and the appraisal committee should hold a preparatory meeting before the appraisal meeting, listen to the report of the achievement completion unit on the preparation of the appraisal meeting, and agree on the specific agenda of the meeting.

2. General procedures of the appraisal meeting

1) The person in charge of the appraisal unit announces the start of the appraisal meeting, reads out the approval documents of the appraisal, announces the list of appraisal committees, reports the number of experts attending the appraisal meeting, and announces that the appraisal committee director or deputy director presides over the technical appraisal.

2) Under the auspices of the director of the appraisal meeting, the achievement completion unit, expert test group, user unit, etc. shall make a summary report, technical research report, test report, and application report.

3) Experts conduct on-site inspections or watch demonstrations.

4) Experts questioned.

Experts raised doubts based on the appraisal materials that have been reviewed, listening to reports, on-site inspections, or watching demonstrations. The unit that has completed the results must truthfully answer the questions raised by the experts and produce the original technical information required.

5) Expert review.

In the form of back-to-back, all the personnel of the unit avoiding the achievement of the achievements will be independently evaluated by the appraisal committee. The appraisal unit and the host appraisal unit may send 1-2 representatives to attend the meeting to understand the expert evaluation, but may not publish an evaluation of the appraised results Sexual opinion.

The contents of the appraisal committee's evaluation include: whether the indicators required by the contract or plan mission are completed; whether the technical data are complete and in compliance with the regulations; the creativity, advancement and maturity of the applied technical results; the application value and the conditions and prospects of promotion; problems And suggestions for improvement. During the evaluation, the overall performance and level evaluations made should be comparable.

According to the appraisal situation, the appraisal committee appointed by the appraisal committee drafts appraisal opinions, which cannot be drafted by others. For the appraisal opinions that do not clearly write "existing problems" and "improvement opinions" are deemed invalid appraisals, the organization appraisal unit or the presiding appraisal unit shall return to reappraise and make corrections.

Experts participating in the appraisal meeting and persons attending the meeting shall not comment on the situation for any reason, especially to disclose the different opinions in the discussion.

6) After the appraisal opinion is formed, the appraisal committee signs the original appraisal opinion and the "Appraisal Committee Signature Form" in the "Appraisal Certificate". Members who do not agree with the appraisal opinion have the right to refuse to sign. The original opinions and on-site test reports signed by experts shall be archived by the organization appraised by the experts, and stored on the disk, and the copies shall be submitted to the completion unit for the completion of the "appraisal certificate".

If the appraisal committee fails to pass the appraisal, the appraisal committee shall formally issue a written reason for failure, after reviewing the appraisal unit, notify the achievement completion unit, and report it to the competent department to save the written reason on disk.

If the organization appraisal unit or the host appraisal unit finds that the appraisal opinion does not meet the requirements of the "Appraisal Certificate" and relevant regulations, it shall promptly point it out to the appraisal committee and instruct the appraisal committee to make corrections.

7) After the appraisal opinion is formed, organize the appraisal unit or the leader presiding over the appraisal unit to preside over the meeting, the appraisal committee director or deputy director announces the appraisal opinion at the appraisal meeting, and relevant leaders make speeches. The appraisal meeting is over.

3. Appraisal meeting data archive

After the acceptance and appraisal meeting is over, the documents and materials delivered by Party B (construction party), the materials used, and the appraisal opinions are submitted to the relevant departments of Party A (user side) for archiving.

18650 2S4P 7.4V Battery Pack

Shenzhen Powercom Electronics Co., Ltd. , https://www.expowercome.com