Integrated wiring system installation
1 scope
The technology standard is applicable to buildings Ding Cheng building automation control with integrated wiring system installation.
2 construction preparation
2.1 material requirements:
2.1.1, programming cable and cable specifications, form should comply with the design rules and the provisions of the purchase and sale contract. Cable attached logo, label content should be complete, clear. Cable outer sheath should be intact, the cable should be attached to the factory quality inspection certificates, and shall be accompanied by the batch cable performance test report (note: the content of the cable marker: on cable sheath around at lm intervals indicate the factory name or symbol and cable specifications, also indicate the production date if necessary. Label content: cable specifications, factory name or logo, year of manufacture, cable length).
2.1.2 steel pipe (or wire tube) specifications, shall comply with the design requirements, uniform wall thickness, uniform weld, without fracturing, sand holes, edge and shallow concave phenomenon. Apart from the galvanized pipe pipe to be cleaning brush anti-corrosion paint in advance (cast-in-situ concrete in steel pipe apply, don't brush anti-corrosion paint, but should be rust removal). Galvanized pipe or painted anticorrosive paint of steel tube appearance complete without peeling phenomenon, and the product certificate.
2.1.3 pipe using cement pipe piece, should be in line with the ministry of posts and telecommunications communication pipeline engineering technical specification for construction and acceptance of rules (YDJ39 90).
2.1.4 metal trough and its accessories: finalize the design product through galvanized processing should be adopted. The specifications should comply with the design requirements. Slot should be smooth level off, both inside and outside edges, should not be distorted, become warped edge, such as deformation phenomenon, and shall have the manufacturer's certificate.
2.1.5 various galvanized iron surface treatment and coating should be uniform, the surface is bright and clean, no fall off, the defects such as bubbles.
2.1.6 connectors: all kinds of jumpers, wiring row, information socket, such as optical fiber socket type specification, quantity should comply with the design requirements, the transmitting and receiving sign clearly, and shall have the manufacturer's certificate.
2.1.7 wiring equipment, cable transfer equipment specifications should comply with the design requirements, the optical cable equipment arrangement and the label should be consistent with the design. Unified label, mark position correctly and clearly. And shall have the product certification and related technical documents.
2.1.8 cable tray, metal bridge model specification and quantity should comply with the design requirements, the metal bridge damage of galvanized layer should not have falls off phenomenon, bridge should level off, smooth, no edge, no distortion, become warped edge, iron losses deformation phenomenon, and shall have the manufacturer's certificate.
2.1.9 various modules equipment specifications, quantity, should comply with the design requirements, and shall have the manufacturer's certificate.
2.1.10 transfer boxes, wiring box model specification and quantity should comply with the design requirements, and shall have the manufacturer's certificate.
2.1.11 plastic trough and its accessories specifications should comply with the design requirements, and choose corresponding to finalize the design product. Its installation site of the ambient temperature shall not be less than 15 ℃, the flame retardant properties of oxygen index should not be less than 27%. Slot inside and outside should be smooth and shuttleless thorn, there should be no distortion, become warped edge, such as deformation phenomenon, and the product certificate.
2.2 the main tools and test equipment:
2.2.1 stewed pig, hydraulic simmer pig, hydraulic pressure, pressure case, diamond core set of silk machine, set of machine.
2.2.2 hammer and chisel, hacksaw, flat file, round file, adjustable wrench, tail clamp.
2.2.3 pencils, tape measure, spirit level, line drop ash shovel, ash bucket, kettle, oil drum, painting, chalk line bag, etc.
2.2.4 hand electric drill, bench drill, drill, nail gun, pull riveting gun, tool bag, toolbox, high stool, etc.
2.2.5 testing instrument and equipment, multimeter, shaking table, the optical time domain reflectometer, noise tester, field strength tester, bridge, network analyzer, etc.
2.3 operation conditions;
2.3.1 in structure engineering obligate geosyncline, tube, the position of the hole size, quantity, shall comply with the design rules.
2.3.2 transition between asked, equipment, workspace, civil engineering have been completed. House decoration project completed, ground, metope smooth, bright and clean, the height and width of the door should not impede the handling of equipment and devices, door locks and keys is complete.
2.3.3 devices laid floor, the plate laid tightly solid, and horizontal deviation should not be allowed greater than 2 mm per square meter, the floor pillar is firm, floor anti-static measures of grounding should conform to the requirements of the design and product specifications.
2.3.4 handover, equipment rooms provide reliable construction power supply and grounding device.
2.3.5 transition area between rooms, equipment, environment temperature, humidity, shall comply with the design requirements and related regulations.
2.3.6 delivery, equipment should comply with the fire safety requirements, reserved holes to take fire prevention measures, indoor stacked without danger, the fire equipment is complete.
3 operation process
3.1 process:
Equipment inspection to pipe laying, box steady note to equipment installation and cable laying, cable terminals installed - >
Completed system debugging and verification
3.2 equipment inspection:
3.2.1 before construction appearance inspection should be made for the equipment used to check the type, quantity, logo, label, product certification, product technical documents, related equipment of the electrical properties, mechanical properties, functions and the relevant special requirements, should comply with the regulations of design.
3.2.2 cable electrical performance sampling test, should comply with the regulations of products factory inspection requirements and related specifications.
3.2.3 fiber characteristics test should comply with the regulations of products factory inspection requirements and related specifications. Note: the specific requirements for equipment inspection, please see the building and building integrated wiring systems engineering construction and acceptance standard CECS89:97 relevant part.
3.3 piping installation:
3.3.1 metal tube or dark flame retardant rigid (PVC) plastic tubing installation requirements:
3.3.1.1 piping appropriate USES metal or flame retardant rigid (PVC) plastic pipe, embedded in the middle of the wall of the dark tube diameter should not be more than 50 mm, the floor of the dark tube straight for 15 to 25 mm. Straight line stringing 30 m pull box and junction box should be set up.
3.3.1.2 dark piping turning Angle should be greater than 90 °, on the path of each drainage tubes of not more than two turning Angle, should be not S bending. When bending tube intervals of 15 m, dark pull box and junction box should be set up.
3.3.1.3 turn dark pipe bending radius should not less than 6 times of the pipe diameter, such as dark tube diameter greater than 50 mm, should not be less than l0 times.
3.3.1.4 metal and hard plastic pipe concrete construction technology of flame retardant, please according to the relevant section of the construction.
3.3.2 rainfall distribution on 10-12 dark metal trough the ground installation requirements:
3.3.2.1 embedded trough in the building, according to their size is different, according to a layer, or layer 2 set, should be at least more than two root embedded, slot section height should not be more than 25 mm.
3.3.2.2 trough directly buried length more than 6 m or online slot route intersection, turn, appropriate is set to pull box, so that the cloth cable and maintenance.
3.3.2.3 drop-down box should be able to open and flush with the ground, lifted the lid of waterproof measures should be taken.
3.3.2.4 trough appropriate USES tube is introduced in the junction box. Embedded metal trough as shown in figure 3-85. On the ground metal trough installation process, please construction according to the requirements of relevant chapters.
3.3.3 lattice form dark under floor installation of tents and groove requirements:
3.3.3.1 shape trough on the groove form shown in figure 3-86, please see.
3.3.3.2 groove shape and trough must communicate.
3.3.3.3 groove plate can be opened, and with the ground, cover board and waterproof measures should be taken to the information socket outlet.
3.3.3.4 groove width should be less than 600 mm.
3.3.4 bridge installation requirements:
3.3.4.1 bridge run level, hanging (a) spacing generally 1.5 m ~ 3 m, when the vertical installation on the building structure body with the spacing should be less than 2 m.
3.3.4.2 bridge and the installation position of the tank shall meet the design requirements, the left and right deviation shall not be more than 50 mm.
3.3.4.3 bridge and levelness slot per meter deviation shall not be more than 2 m m.
3.3.4.4 vertical bridge and slot should be vertical with the ground, and no tilt phenomenon, verticality deviation shall not be more than 3 m m.
3.3.4.5 two horizontal windage, joining together should not be more than 2 mm.
3.3.4.6 crane (a) an installation should be kept vertical flat, neat rows, fixed firmly, no askew phenomenon.
3.3.4.7 metal bridge and slot section and internode should contact good installation is firm.
3.3.4.8 metal bridge construction technology for installation please construction according to the requirements of relevant chapters.
3.3.5 metal trough installation or flame retardant plastic slot equipped on installation construction technology, construction according to the requirements of relevant section, please.
3.4 box, box steady note requirements:
3.4.1 track information socket installation:
3.4.1.1 installed on the floor or ground, should be fixed in the junction box, socket panel such as vertical and horizontal form, junction box cover can be opened, and should be tight waterproof, dustproof. Junction box cover surface should be flush with the ground.
3.4.1.2 installed on the wall, should be 300 mm above the ground, such as the ground USES floor board of activities, should be combined with floor in clear height size.
3.4.1.3 information socket base fixed method to the construction site conditions, appropriate USES expansion screws, nail and so on.
3.4.1.4 fixed screws to tighten, should not have loose phenomenon.
3.4.1.5 information socket should have a label, with color, graphics, text indicates that terminal equipment type.
3.4.1.6 installation position should meet the design requirements.
3.4.2 box or wiring specialization and dark in the wall inside, reserve a hole in the wall installation, higher than that of the bottom ground appropriate for 500 ~ 1000 mm.
3.5 installation:
3.5.1 track of rack installation requirements:
3.5.1.1 frame after the installation, horizontal and vertical degree should comply with the regulations of manufacturers. If not specified manufacturer, verticality deviation should not be greater than 3 mm.
3.5.1.2 various parts of the racks shall not fall off or damaged. Paint if there is any loss should be fill paint, complete clear signs.
3.5.1.3 rack installation should be strong, should be in accordance with the requirements for reinforcement design of shock.
3.5.1.4 rack panels, frame before installation should leave 1.5 m space, frame on the back of the distance from the wall should be greater than 0.8 m, in order to facilitate installation and construction.
3.5.1.5 wall-mounted machine box bottom is apart from the ground appropriate for 300 ~ 800 mm.
3.5.2 wiring equipment rack installation requirements:
3.5.2.1 way down the line, the bottom of the rack position should correspond to cable line hole.
3.5.2.2 each array vertical tilt error should not be greater than 3 mm, base level error should not be greater than 2 mm per square metre.
3.5.2.3 terminal signs should be complete.
3.5.3 all kinds of connection module installation requirements:
3.5.3.1 module should be intact, equipment installation in place, mark is complete.
3.5.3.2 mounting screws should be solid, panels should keep in a horizontal plane.
3.5.4 grounding requirements:
Rack installation, wiring equipment and metal pipe, groove, the earthing body, protective earthing conductor cross section, the color should comply with the design requirements, and maintain a good electrical connection, the pressure it is firm and reliable.
3.6 cable laying.
3.6.1 cable laying general shall meet the following requirements:
3.6.1.1 wire cloth before you check the specifications, programming and routing and location and design requirements.
3.6.1.2 wire cloth should be straight, can not produce twisting, looped wait for a phenomenon, should not by external extrusion and damage.
3.6.1.3 cable ends should be labeled before wash cloth, indicating the start and end position, label writing should be clear, correct and accurate.
3.6.1.4 power cable, signal cable, twisted-pair cable, optical cable and other weak current system of cables should be separated buildings cloth. The minimum clear distance between cable should meet the design requirements.
3.6.1.5 wire cloth should be redundant. Between transition, reserved for cable length between equipment, general for 3 ~ 6 m; The workspace is 0.3 ~ 0.3 m; Length of cable on the equipment side reserved generally for 5 ~ 10 m; Have special requirements should be reserved length according to design requirements.
3.6.1.6 bending radius of cable shall meet the following requirements:
A non blocking 4 on bending radius of cable should be at least 4 times of cable diameter, in construction process should be at least 8 times.
B shielded twisted-pair cable bending radius should be at least 6 ~ 10 times of the cable diameter.
C the trunk bending radius of cable should be at least 10 times of cable diameter.
D bending radius of cable should be at least as cable diameter l. 5 times, in construction process should be at least 20 times.
3.6.1.7 wire cloth, in the process of traction, hanging cable fulcrum distance should not be more than 1.5 m apart.
3.6.1.8 cloth cable traction, should be less than 80% of the tension of cable to allow, for cable instantaneous maximum traction should not exceed the tension of cable to allow. In the drawing method of laying cable, main traction should add on the strengthening of cable core.
3.6.1.9 wire cloth to avoid stress and distortion in the process, shall be made for the qualified traction end. If use mechanical traction, should according to the length of the cable traction, cloth environment, factors such as tension of traction concentrated or dispersed traction, etc.
3.6.1.10 cloth fiber optic cable, fiber optic cable tray rotation should synchronize with fiber cloth, fiber optic cable traction speed of the average of 15 m/s. The radian of cable acquired place should stay relaxed, and leave the buffer cushion, and unfavorable and overmuch, avoid cable back button.
3.6.1.11 twisted-pair cable and power cable of minimum interval should comply with the regulations of table 3-50, and the other line of minimum interval should comply with the regulations of table 3-51.
3.6.1.12 with other optical cable laying pipeline of minimum interval should comply with the provisions of the table 3-52.
3.6.2 embedded trough and dark pipe laying cable shall meet the following requirements:
3.6.2.1 ends of laying pipe should be sign, said out of the room number, serial number and length.
3.6.2.2 pipe should be no block, nozzle should be no burr, and drawing lines or arrows.
3.6.2.3 laying drainage tubes using straight steel tube or flame retardant rigid (PVC) plastic pipe. Cloth double sheath cable and main cable, the utilization rate of pipe diameter of straight pipe should be 50% ~ 60%, the bent pipe is 40% ~ 50%, drainage tubes cloth 4 renew for cable, the utilization rate of cross section of pipeline should be 25% ~ 30%. Embedded trough appropriate USES metal trough, trough section utilization ratio should not exceed 40%.
3.6.2.4 cable and cable, with the pipe should be preset in the dark tube plastic tube, the cable is located in the tube, make the fiber optic cable and cable separate cloth, son pipe inside diameter should be 1.5 times of cable diameter.
3.6.3 set up cable tray and trough laying cable shall meet the following requirements:
3.6.3.1 cable bridge straight above 2.2 m above ground, top of the bridge from the ceiling or other obstacles should not be less than 300 mm. Bridge width should not be less than 100 mm, inside the bridge cross sectional fill rates should not exceed 50%.
3.6.3.2 cable tray cable inside the vertical run, at the top of the cable and intervals of 1.5 m, should be fixed on the bridge of the stent, run level, the linear part of the distance in 3 ~ 5 m place have fixed point. In the distance of the cable head end, tail end, turning center of 300 ~ 500 mm in fixed point set.
3.6.3.3 cable trough the ground 2.2 m higher than that of straight. Set in the ceiling, tank lid open side should be kept vertical clearance of 80 mm, utilization rate of slot section should not be more than 50%.
3.6.3.4 cloth trough cable can not tie, cable groove should be straight, try not to cross, line slot of cable should not be excessive, in the outlet and inlet line of cable trough, corner should be bound and fixed. Vertical line slot cloth cable should be at intervals of 1.5 m on the cable bracket.
3.6.3.5 in horizontal and vertical laying cable bridge and vertical line groove, the response to the cable tie. 4 for cable in 24 root for beam, 25 or more trunk twisted-pair cable, optical cable and other cable letter should be according to the type of cable, cable diameter, cable tie beam some points. Tie spacing should not be more than 1.5 m, buckle spacing should be homogeneous, elastic moderate.
3.6.4 radar echoes captured within the ceiling cable laying, fire prevention should be considered for cable laying should be separately set hanger, can not wash cloth on the ceiling suspension, should be placed on the wire slot wiring. Cable sheath should be flame retardant, selection of cable section should comply with the design requirements.
3.6.5 in shaft adopts Ming piping, laying cable bridge, metal trough etc way, and relative clauses should comply with the above requirements. Surrounding the shaft in the floor hole should be set up to 50 mm waterproof, the hole plugging with fireproof materials sealed.
3.6.6 complex subsystem adopts overhead pipeline, directly buried, wall piping (tank) or dark piping (slot) cable, optical cable laying construction technical requirements should be reference of posts and telecommunications telephone lines in engineering technical specification for construction and acceptance, the telecommunication network optical fiber digital transmission system interim technical regulations on engineering construction and acceptance of the relevant provisions.
3.7 cable terminal installation:
The general requirements of 3.7.1 cable terminal:
3.7.1.1 cable in the terminal, it is necessary to check the label color and digital means, and terminal in sequence.
3.7.1.2 cable shall not produce coupling phenomenon in the middle.
3.7.1.3 cable terminals must be firm card, contact, good.
3.7.1.4 cable terminal installation manual and the manufacturer should comply with the design requirements.
3.7.1.5 twisted-pair cable connected to the splice piece should look for the line number, line color code, shall not be reversed and wrong answer.
3.7.2 twisted-pair cable core terminal shall meet the following requirements:
3.7.2.1 terminal, each on the winding should be kept twisting as far as possible, not a twisting length for 5 class line should not be greater than 13 mm; Four kinds of line is not more than 25 mm.
3.7.2.2 stripped jacket shall scrape insulation, should use special tool strip.
3.7.2.3 wire pair in the information socket (RJ45) are linked together, must according to the color code and line for clamping sequence. Socket type, the color label and serial number should comply with the regulations of figure 3-87.
3.7.2.4 twisted-pair cable and RJ45 socket information card terminal connection, should press after nearly far first, after the first on the order card.
3.7.2.5 twisted-pair cables and wiring module (IDC, RJ45) card, it should be stipulated in the design and manufacturer.
3.7.2.6 shielded twisted-pair cable shielding layer contact with reliable connector terminal shields, cable shielding layer should be in contact with the 368 circular connector shields, contact length should not be less than 100 mm.
3.7.3 cable conductor terminal shall meet the following requirements:
3.7.3.1 using optical fiber connection box of cable core, protection, optical connection box can be fixed and drawer two kind of way. In the connection box, optical fiber bending radius should be able to get enough.
3.7.3.2 fiber melt or mechanical joint should be protected and fixed, the use of connectors for fiber optic jumper.
Should sign 3.7.3.3 connection box panel.
3.7.3.4 jump line soft the activities of the fiber connector should be clean before insert adapter, plug location comply with the design requirements.
3.7.3.5 fiber connection loss value, should comply with the provisions of the table 3-53.
Loss of fiber connection table 3-53
Optical fiber connection loss (dB)
Multimode single mode optical fiber category
Average maximum average maximum
Pick up 0.15 0.30 0.15 0.30
Machinery in 0.15 0.30 0.20 0.30
3.7.4 of all kinds of jump line into a client:
3.7.4.1 jump cable wire and contact between the plug-in should be good, wiring is correct, complete logo. Choose jumper wire type should conform to the requirements of the system design.
3.7.4.2 jump line length should comply with the design requirements, the general cable should not be more than 5 m, cable should be not more than 10 m.
3.8 integrated wiring system debugging:
3.8.1 integrated wiring systems engineering system debugging, including cables, information electric outlet and connect line module test. The test should be detailed records, as part of the completion data. About the electrical performance test record format as shown in table 3-54.
Integrated wiring systems engineering electrical performance test record table 3-54
Should the record within
The serial number, electric cable system cable system
Address, cables, wiring diagram attenuation device number length near end crosstalk attenuation reflection shielded cable shielding layer connectivity
The test date
The tester
Instrument model
Processing conditions
3.8.2 electrical performance test instrumentation accuracy should reach the requirements given in table 3-55.
The minimum required performance tester precision table table 3-55
Performance parameters of the serial number 1 ~ 100 megahertz (MHz)
1 random noise lowest 65 ~ 15 log dB note 1 (f / 100)
2 remaining near end crosstalk (NEXT) 55 ~ 15 log dB note 1 (f / 100)
3 equilibrium output signal 37 ~ 15 log dB note 1 (f / 100)
Four common mode rejection 37 ~ 15 log dB note 1 (f / 100)
5 dynamic accuracy + / - 0.75 dB note 1.2.
6 length accuracy + / - 1 m + / - 4%
15 db 7 return loss
Note: 1. F frequency in the table, the unit for MHz. The calculated value in the table below 75 db, 1, 2, can not measure; In less than 60 db, 3, 4, 5 items can not measure.
In the table 2. In item 5, db from 0 to 10 db near end crosstalk limit is superior to the value to 60 db.
3.8.3 instrument should be able to test 3, 4, 5 class twisted-pair cable.
3.8.4 test instrument for an information socket electrical performance test time should be between 20 and 50 s.
3.8.5 instrument should be output port to all test data storage, and output to the computer and printer maintenance management at any time.
3.8.6 cable, optical cable should be subject to measurement instrument department check, after having obtained the certificate of approval, and shall be used in engineering.
3.8.7 debugging procedure is as follows:
By data terminals, voice terminal to check, information on export, horizontal cable, floor distribution frame, the main distribution frame, vertical cable, computer room, telephone switching machine room, after a thorough check, confirmed before debugging pair then debugging system one by one, each subsystem after the commissioning test conform to the rules permit, then system integrated debugging, after testing the transmission rate and other technical parameters conform to the rules, can be delivered.
3.9 comprehensive wiring system project completion acceptance of the project and content are shown in table 3-56.
Comprehensive wiring system project acceptance and the content of table 3-56
Stage project acceptance inspection for acceptance within the way
Before a, construction check 1. Environmental requirements: (1) the civil construction floor, walls, doors, power socket and grounding device;
(2) the civil process: computer room area, reserved holes;
(3) construction of the power supply;
(4) the floor installation
Before the construction check
2. The equipment inspection (1) the appearance inspection;
(2) specification, type, quantity,
(3) cable electrical performance sampling test;
(4) fiber characteristics test
3. Safety, fire prevention requirements (1) the fire fighting equipment;
(2) the danger of stacking;
(3) the reserved hole fire prevention measures
Before the construction check
Second, the installation of equipment
1. The device frame (1) specification, programming, appearance;
(2) vertical installation, levelness,
(3) paint shall not fall off, complete sign complete;
(4) all kinds of screws must be tightened;
(5) shock reinforcement measures;
(6) grounding measures
2. The information socket (1) specification, location, quality;
(2) all kinds of screws must be tightened;
(3) mark is complete;
(4) installed in accordance with process requirements;
(5) shielding layer and reliable connection
Along with the work inspection
Three, electricity, cable cloth (building) 1. The cable tray installed and groove (1) location correct;
(2) installed in accordance with process requirements;
(3) the ground
Along with the work inspection
2. Wire cloth (1) cable specifications, routing, location.
(2) comply with the requirement of cloth cable technology
Continue table
Stage project acceptance inspection for acceptance within the way
Four, electricity, cable cloth (floor) 1. The overhead cables (1) the messenger wire sizes, erect position, furnish specifications;
(2) the messenger wire sag;
(3) the cable specifications.
(4) card, hang interval;
(5) the introduction of the cables conform to the requirements of the process
Along with the work inspection
2. The cable pipe (1) using pipe distributed;
(2) the cable specifications.
(3) cable to.
(4) the arrangement of cable protection quality concealed work visa
3. The buried cables (1) the cable specifications.
(2) the installation location, depth;
(3) the arrangement of cable protection for quality.
(4) back to the soil compaction quality concealed work visa
4. Along with the cable (1) the cable specifications.
(2) installation location, route;
(3) the soil construction conform to the requirements of the process
Concealed work visa
5. (1) other lines of communication with other facilities spacing;
(2) into the line installation, construction quality concealed work visa
Five, the cable terminal 1. Information socket conform to the requirements of the process
2. The wiring module meet the technological requirement
3. The fiber socket conform to the requirements of the process with the inspection
4. All kinds of jump line conform to the requirements of the process
Sixth, the system test 1. Engineering electrical performance test (1) the connection diagram;
(2) length;
(3) attenuation;
(4) near end crosstalk;
(5) special provisions in the design of test content
Tests on completion
2. Optical properties test (1) type (single mode or multimode);
(2) attenuation;
(3) the reflection
Tests on completion
3. The tests on completion grounding system meet the design requirements
Seven, project total acceptance 1. Completion technical document count, transfer of technical documents;
2. Evaluating engineering quality acceptance of work, the results of acceptance tests on completion
Note: 1. The floor in cable laying in embedded, and the acceptance of the drainage tubes for concealed work visa.
2. The content of the system test of the acceptance test can be in with the work.
4 quality standards
4.1 ensure projects:
4.4.1 integrated wiring equipment used by devices, box, box cables, connecting hardware installation should comply with the corresponding product manufacturer and relevant national norms.
4.1.2 lightning protection, earthing resistance value should meet the design requirements, equipment metal shell and components, cable shielding grounding line section, colour should comply with the rules; Ground connection conductor should be solid and reliable.
4.1.3 integrated wiring system of the launch of interference wave field strength limit requirements shall comply with the relevant EN55022 and CSPR22 standard regulations.
4.1.4 integrated wiring system should be able to meet the design of data transfer rate and voice system, standard system, such as the design requirements and specification requirements.
Test method: observe the inspection test inspection or the use of instruments and equipment.
4.2 the basic items:
2 integrated wiring system, transition, cable pipeline, metal trough, a variety of devices, information socket installation should comply with the regulations of design requirements and norms. Rational layout, neat rows, cable connection correct, firm pressure.
4.2.2 connection hardware comply with the design requirements, mark and the color code clear, performance marks set right.
Electrical holdings and protective, grounding, resistance to electromagnetic interference, anti-static, fire prevention, gas, environmental protection should comply with the rules.
Methods: to observe the inspection test inspection or the use of instruments and equipment.
4.3 allowable deviation projects:
4.3.1 integrated wiring system link attenuation of maximum limit, include at the ends of the connecting cable connection hardware, jump line and working area, should comply with the provisions of the table 3-57.
Link attenuation of the biggest limit table table 3-57
Frequency ratio is the most big attenuation limit (dB)
Levels (MHz) A B C D
Note: after each point line, the curve of the test should be within the scope of the limits of the standard curve in all.
4.3.2 integrated wiring system between any two lines of the proximal crosstalk attenuation limit, including at the ends of the connection hardware, jumper and workspace connection cable, including (but not including equipment connector), should comply with the regulations of table 3-58.
4.3.3 any cable in the integrated wiring system interface reflection attenuation limit, should comply with the provisions of the table 3-59.
4.3.4 integrated wiring system link with proximal crosstalk decay ratio (ACR), shall comply with the provisions of table 3-60.
Line between the lowest proximal crosstalk attenuation limit table table 3-58
Proximal crosstalk attenuation limit lowest frequency rates (dB)
Levels (MHz) A B C D
All other sound source of the noise should be less than full application of the crosstalk noise frequency 10 db.
In large logarithmic main cable, the worst line right proximal alto attenuation value, should be measured in accumulative frequency power.
Cable bridge bifurcation or more combinations, and connect to multiple information socket cable, either symmetrical cable group or unit between the proximal crosstalk attenuation than a single combination of at least 4 of the proximal crosstalk attenuation of the cable well Δ a number.
Δ = 6 dB + 10 lg (n + 1) dB
Type: n number of sets of symmetrical cable for china-africa fiber optic cable.
The cable outlet minimum reflection attenuation limit table table 3-59
Minimum frequency rate attenuation threshold
Levels (MHz) C D
1 f 10 18 18 or less or less
10 < f 16 or less 15 15
16 < 20 or less 15 f
20 f 100 or less 10 or less
The minimum value of ACR table table 3-60
Frequency rate
Minimum value of ACR (dB) frequency rate minimum value of ACR (dB)
(MHz) D D (MHz)
2.
ACR (dB) = the aN (dB) - a (dB)
Type in the aN - between any two lines of the proximal crosstalk attenuation values;
A - link transmission attenuation values.
ACR values listed on this form is better than the calculated value, between the attenuation and crosstalk attenuation is allowed limits weigh the choice, the choice range such as table 3-61.
Attenuation and selection of proximal crosstalk attenuation limit table table 3-61
Frequency rate
(MHz) maximum attenuation
(100 m) dB/minimum proximal crosstalk attenuation
At 100 m (dB)
Twenty eight 41
31.25 10.3 39
62.5 15 to 33
100 19 29
4.3.5 integrated wiring system of hierarchical and transmission distance limit shall satisfy the requirements of table 3-62:
Rating system and transmission distance limit table table 3-62
System highest preach twisted-pair cable transmission distance (m) optical cable transmission distance (m) application, for example
Grade 100 Ω lose frequency
Three kinds of 100 Ω
4.3.6 line of integrated wiring system of dc loop resistance limit, when the system classification and transmission distance under the condition of the given in table 3-62, shall comply with the provisions of the 3-63.
Dc loop resistance limit table table 3-63
Link level grade A grade B C D level
The largest loop resistance (Ω) 560 170 40 40
Note: 100 Ω dc loop resistance of cable should be 19.2 Ω / 100 m;
150 Ω dc loop resistance of cable should be 12 Ω / 100 m.
4.3.7 propagation delay limit line of integrated wiring system, should comply with the provisions of the table 3-64.
The maximum propagation delay limit table table 3-64
Level measurement frequency (MHz) don't delay late (mu s)
0.1 A 20
1 B 5
10 C 1
30 D 1
Note: the wiring (horizontal) subsystem of the maximum propagation delay shall not exceed 1 mu s.
4.3.8 integrated wiring system of longitudinal differential conversion value of attenuation (balance), which shall comply with the rules of table 3-65:
Longitudinal differential attenuation limit table conversion table 3-65
Minimum longitudinal differential attenuation limit transformation frequency rate (dB)
Levels (MHz) A B C D
0.1 30 to 45 35 to 40
1.0 20 30 to 40
4.0 to be determined to be determined
10.0 25 to 30
16.0 to be determined to be determined
20.0 to be determined to be determined
100 backlog
Note: longitudinal base test methods of converting attenuation are studying.
V4.3.9 integrated wiring system, various parameters of the optical wavelength window, should comply with the provisions of the table 3-66:
Cable 4.3.10 integrated wiring system, under the conditions of various parameters in table 3-66, fiber optic link to allow maximum transmission distance, should comply with the provisions of the table 3-67.
Multimode optical fiber link 4.3.11 integrated wiring system bandwidth optical mode, shall comply with the rules of table 3-68.
4.3.12 integrated wiring system, fiber optic link any value of the optical attenuation of the interface, which shall comply with the rules of table 3-69.
4.3.13 integrated wiring system of cables and equipment should be paid attention to the mutual connection between impedance matching and transformation adaptation of balance and imbalance. The classification of the characteristic impedance should comply with the 100 Ω, 150 Ω two kinds of standards, the allowable deviation value is + 15 Ω (> 1 MHZ) is suitable for the frequency.
Optical wavelength window parameter table table 3-66
Optical fiber mode, the nominal wavelength
Lower limit (nm)
Upper limit (nm)
Wavelength (nm) benchmark test
FWHM (nm) maximum spectral width
(nm)
Multimode 850, 790, 910, 850 to 50
Multimode 1300 1285 1330 1300 1285
1310, 1288, 1339, 1310 10 single mode
1550, 1525, 1575, 1550 10 single mode
Note: 1. The multimode optical fiber: core mu m nominal diameter is 62.5/125 or 50/125 microns;
When 850 nm wavelength maximum attenuation of 3.5 dB/km; Bandwidth is 200 MHZKM minimum mode
When the 1300 - nm wavelength maximum attenuation for 1 db/km; Minimum mode bandwidth of 500 MHZKM;
2. The single mode fiber: core pile should meet IEC793-2, type BI and ITU - T G. 652 standard;
When 1310 nm and 1550 nm wavelength maximum attenuation ldB/km; The cutoff wavelength should be less than 1280 nm. 1310 nm dispersion should be 6 ps/km · nm or less; 1550 nm dispersion should be 20 or less ps/km, nm.
3. The fiber connection hardware: maximum 0.5 dB attenuation; The minimum reflection attenuation: 20 db multimode, single-mode 26 db.
Fiber optic link allows maximum transmission distance table table 3-67
Link length of multimode attenuation value (dB) single mode attenuation value (dB)
Cable application category (m), 850 (1300 nm) (nm) 1310 (1550 nm) (mm)
Wiring (horizontal) subsystem 100 2.5 2.2 2.2 2.2
Main subsystem 500 3.9 2.6 2.7 3.9 (vertical)
Complex subsystem 1500 7.4 3.6 3.6 7.4
Note: 1. The link length, specified in the table is in the use of fiber optic cable and optical fiber connection hardware conditions, the maximum allowable range.
2. For short applications, should be into the optical attenuator, ensure the attenuation values specified in the table.
Multimode fiber optical mode bandwidth of a link table table 3-68
Nominal wavelength (nm) minimum bandwidth optical model (MHz)
850, 100,
1300, 250,
Note: the model of single mode optical fiber link bandwidth, to ISO/iec11801and: 1995 (E) has not been made.
The optical fiber link attenuation limit table table 3-69
Optical fiber mode, the nominal wavelength
(nm) minimum reflection attenuation threshold
(dB) optical fiber mode, the nominal wavelength
(nm) minimum reflection attenuation threshold
(dB)
Multimode 20 single-mode 1310 26 850
Multimode 20 single-mode 1550 26 1300
5 finished product protection
5.1 the installation such as integrated wiring system equipment and cables, is allowed to damage buildings, and pay attention to maintain the cleanliness of the wall.
5.2 set up within the ceiling of the cable, pipe installation, etc., should not damage the keel and ceiling.
Live 5.3 solder paste, the equipment and devices must not be soiled surface, ground trough, information socket should guard against water damage or parts.
5.4 using high stool or carry objects, is allowed to damage or collision walls and doors and Windows, etc.
6 should pay attention to quality problems
6.1 the pipe or ground slot blocking or into the water, affect the wiring, dredge pipe trough, water pollution is eliminated in the wiring.
6.2 information socket is damaged, poor contact, check the repair.
6.3 cable length is long, the signal attenuation is serious, according to the drawings for inspection, cable length should comply with the design requirements, adjust the signal frequency, the attenuation conform to the requirement of design and specification.
6.4 the optical fiber connector polarity, no output signal, adjust the optical fiber connector polarity correctly.
6.5 have signal interference, check to eliminate interference sources, check whether the cable shielding wire is ground, trough the wire whether side by side and clapboard shielding, cable and optical fiber cable is isolation processing, indoor anti-static floor is a good grounding, etc.
6.6 cable transmission system transmission attenuation, ceramic or plastic head connector, the attenuation value of each connection point is greater than the specified value.
6.7 optical fiber digital transmission system of digital series bit rate does not conform to the stipulations of the specification, check whether the digital interface is conform to the requirement of design.
6.8 equipment wrong wiring between subsystems, cause control equipment can not work normally, check the color code according to the drawings correct wiring.
6.9 caused dangerous lightning overvoltage and overcurrent integrated wiring effect or damage to the equipment components, etc., should choose the gas discharge tube protector for over-voltage protection, over-current protection can direct use the complex protector, prevent lightning must adopt overvoltage and overcurrent protector at the same time.
7 quality records
7.1 equipment, components, cables, connectors, all kinds of jumpers, wiring row, information socket, fiber socket products such as certificate of production, product technical documents shall be complete.
7.2 integrated wiring system pipe trough, cable laying and other installation engineering, installation engineering, implicit check visa, self-inspection, mutual inspection records.
7.3 design change, regarding the records, equipment list, as built drawings.
7.4 piping and pipe threading component project quality inspection records.
7.5 trough board wiring subentry engineering quality inspection evaluation form (with metal trough installation should fill in the table).
7.6 the lightning rod (net) and grounding device component project quality inspection evaluation form (for grounding device equipped when fill in this form).
7.7 overhead line and rod breakdown electric equipment installation engineering quality inspection evaluation form (with overhead line installation project when fill in this form).
7.8 cable line component project quality inspection evaluation form (with cable laying project fill in the table).
7.9 integrated wiring system along with the acceptance record system debugging operation.
7.10 integrated wiring systems engineering electrical performance test records, such as system adopt computer design, management, maintenance and monitoring program and user data on the list of files should be provided, and disk, instructions and other documents.
7.11 integrated wiring systems engineering completion technical data in triplicate to the construction unit.
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