Weak electron: College】【weak for construction project to install communications equipment】.

installation of communications equipment for construction projects <? xml: namespace prefix = o ns =" urn: schemas-microsoft-com: office: office "/> <o:p> </ o: p> <o:p> </ .o: p> According to the type of communication equipment, this specification is divided into program-controlled switching equipment, transmission equipment, power equipment, access network equipment, data communications equipment of five parts. . Part .program-controlled switching equipment installation and construction project specifications <o:p> </ o: p> .A installation process <o:p> </ o: p> 1 rack equipment <o:p> </ o: p> 1.1 room location of the rack equipment is installed correctly, in line with the installation of the design plan requirements. . 1.2 measured with a hanging vertical, the vertical deviation degree of rack should be less than <? Xml: namespace prefix = st1 ns = "urn: schemas-microsoft-com .: office: smarttags "/> <st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="mm"> 3mm .</ st1: chmetcnv>. . 1.3 large aisle side of the main column to be aligned in a straight line, the error is not greater than the <st1: chmetcnv w: st = "on" TCSC = "0" NumberType = ."1" Negative = "False" HasSpace = "False" SourceValue = "5" UnitName = "mm"> 5mm </ st1: chmetcnv>. .Rack should be closely adjacent to close; entire column machine surface should be in a plane, no bump phenomenon. . 1.4 Tighten all bolts must be the same kind of screws should be the same length of exposed nuts. . 1.5 parts on the rack must not fall off or break, finish if off should be up painting. .Variety of text and symbolic to be correct, clear and complete. . 1.6 rack, column frame construction drawings must be reinforced seismic requirements. . 1.7 correct alarm display unit installation position is reasonable, clear warning signs. .2 machine and peripheral terminals <o:p> </ o: p> . 2.1 machine location should be installed correctly, neatly sets out to install, machine edge should be a straight line, closely adjacent machine side, the table with each other to maintain the level of convergence at .no uneven phenomenon. . 2.2 terminal equipment shall be equipped with a complete installation in place, signs are complete and correct. .3 MDF and a variety of patch panels <o:p> </ .o: p> 3.1 MDF base shall be located on the cable end into the groove or on-line holes correspond. .Central location of the jumper should be straight and tidy. . 3.2 MDF slide installation should be solid and reliable, smooth sliding, sliding track Euparagonimus stitching, hand brake sensitive. . 3.3 MDF and a variety of patch panels (including digital distribution frames, intermediate distribution frames, etc.) of the upper and lower ends of the vertical line should be little error .in <st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="mm"> 3mm </ st1: chmetcnv> .The base level of error per meter is not more than <st1: chmetcnv w: st = "on" TCSC = "0" NumberType = "1" Negative = "False" HasSpace = "False" SourceValue = "2" UnitName = "mm" .> 2mm </ st1: chmetcnv>. . 3.4 patch panel wiring board mounting location should meet the construction design, a complete range of various signs. . 3.5 Distribution requirements must seismic strengthening construction plans. . 3.6 MDF line and the total alarm device alarm device installation is complete. .4 cable corridor and channel <o:p> </ o: p> < .B style = "mso-bidi-font-weight: normal"> 4.1 cable channel walkway and the installation location should be consistent with the provisions of construction design, left and right deviation of not more than <st1: chmetcnv w: st = "on" TCSC = " .0 "NumberType =" 1 "Negative =" False "HasSpace =" False "SourceValue =" 50 "UnitName =" mm "> 50mm </ st1: chmetcnv>. . 4.2 installed walkways shall meet the following requirements: 1) the level of the aisle planes should be parallel to the column, or right angles, level per meter deviation does not exceed <st1: chmetcnv w .: st = "on" TCSC = "0" NumberType = "1" Negative = "False" HasSpace = "False" SourceValue = "2" UnitName = "mm"> 2mm </ st1: chmetcnv>; 2) should be perpendicular to the aisle .perpendicular to the ground does not tilt, the vertical deviation of not more than <st1: chmetcnv w: st = "on" TCSC = "0" NumberType = "1" Negative = "False" HasSpace = "False" SourceValue = "3" .UnitName = "mm"> 3mm </ st1: chmetcnv>. .3) The walkway should be neatly installed hanger firm to maintain the vertical, non-skew phenomenon. . 4.3 cable corridors through the hole or hole in the wall where the floor should be installed bead protection. .After tying the cable release, should cover the hole sealed, bead and cover application of flame-retardant materials, paint colors and floor or walls should be the same color. . 4.4 cable installed along the wall of unilateral or bilateral aisle, laid on the wall should be solid and reliable support material along the horizontal separation distance uniform. .Should be neatly installed in the same aisle, without the phenomenon of uneven or skewed. . 4.5 installation channel shall meetthe following requirements: 1) the correct firm, and with the large columns remain vertical; 2) channel between columns should be in a straight line from front to back .Look left and right deviation of not more than <st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="mm"> 3mm </ .st1: chmetcnv>; 3) Stitching the two levels of channel outside the deviation does not exceed <st1: chmetcnv w: st = "on" TCSC = "0" NumberType = "1" Negative = "False" HasSpace = "False" SourceValue .= "2" UnitName = "mm"> 2mm </ st1: chmetcnv>; 4) laying cables and power line inspection. . 5 laying cable <o:p> </ o: p> 5.1 specifications for laying cables, routing, cross-section and location of the construction plans should be consistent with the provisions of the cable arrangement .must be neat, no skin damage. . 5.2 AC and DC power feed cable laying must be separated; power cables, signal cables, the user should be separate cable and trunk cable laying. . 5.3 cable turns should be evenly rounded, the cable bend radius should be larger than <st1: chmetcnv w: st = "on" TCSC = "0" NumberType = " .1 "Negative =" False "HasSpace =" False "SourceValue =" 60 "UnitName =" mm "> 60mm </ st1: chmetcnv>. . 5.3 channel cable must be set free cloth banding. .After lashing the cable should be close toeach other close, straight and neat appearance. .Evenly spaced line deduction, an appropriate degree. .Tie line with the twine must be invaded wax. . 5.4 channel cable laying may not be binding, and groove the cable should be straight, try not to cross. .Parts of the cable and cable access channel should be binding or of the turn tied with plastic card fixed. . 5.5 In the event floor laying cables under the floor, care should be straight is not messy, try to avoid the cross, and must not block the air supply channel. . ≪ B Style = normal " " mso-bidi-font-weight: 6 " mso-bidi-font-weight: style = normal " > between the cables and wiring plug holder <o:p> </o: p > 6.1 frame between the cable and plug, cable router are in line with the direction manufacturers on .requirements. . ≪ B Style = " mso-bidi-font-weight: normal " > 6.2 frame between the cables and wiring must be clearly marked at both ends, not the wrong pick, fumbled. . 6.3 parts should be tightly plugged solid, good contact. .Plug terminal without breaking or bending phenomenon. . ≪ B Style = " mso-bidi-font-weight: normal " > 6.4 frame and wiring cables between the appearance of the straight and tidy. . 7 laying power cable <o:p> </ o: p> 7.1 DC power cable room install routes, large ones, and laying the location should be consistent with the provisions of the construction plans .. .The specifications of the power cord, fuse capacity should meet the design requirements. . 7.2 power cord must be used throughout the line material, the middle without joints. . 7.3 exchange system with the AC power cord must have a ground line of protection. . 7.4 DC power cord into the end of follow firmly connected, good contact, the voltage drop on ground targets and meet the design requirements. . 7.5 Each room together with the DC feed wires connected to power lines and column lines at both ends of the rack into vacant when 500V megger test with positive and negative .between lines and between the negative line to ground insulation resistance shall not be less than 1MΩ. . 7.6 exchange system using the AC power cord at both ends of vacant when tested with 500V megger between wires and wire insulation resistance to ground shall not be less than .1 MΩ. . 7.7 using elevated feeders between columns laying, the copper (aluminum) should be neat, straight and do not see the obvious injustice and hammer marks. .Wire fixation methods and requirements should be consistent with the provisions of the construction plans. . 7.8 Copper (aluminum) of feeder lines are painted in red paint marks, and other different voltage power lines are different color flags. .Should be smooth and uniform coating, flow coating and should not be missed marks. . 7.9 for DC with rubber insulated wire feeders, each feeder should be kept parallel to the positive and negative cable ends are uniform and red and blue signs. .The end of the installed power cord must have a tape head and other insulation, cable profile head office must be sealed with tape and sheathing tie. .<o:p> </ o: p> <H3 style="MARGIN: 13pt 0cm"> second system check test 1 power check prior to testing <o:p> </ o: p> 1.1 program-controlled switching equipment nominal voltage of DC-48V, the voltage range allowed for the -57 ~-40V. . 1.2 device power before, should check the following: 1) the number of various circuit boards, specifications and construction documents consistent with the installation location; 2) complete the correct equipment, signs .; 3) Equipment selection switch should be placed in the various designated locations; 4) fuse at all levels of equipment specifications to meet the requirements; 5) column shelf, rack and all kinds of MDF grounded; 6), the internal power supply wiring device .No ground phenomenon. . 1.3 switch power, should the main power input terminal in the room to measure the supply voltage, to determine the normal only after the power test. . 2 hardware check test <o:p> </ o: p> 2.1 hardware devices at all levels, operating procedures provided by manufacturers, step by step with the power. . 2.2 device is powered, check all the converter's output voltage should be specified. . 2.3 various external terminal should be fully equipped, self-test normal. .Equipment should work well within the fan unit. . 2.4 check switches, patch panels, and all other audible, visible alarm signal device should be working properly, alert and accurate. . 2.5 clock synchronization system configuration switch device should be working properly. .Switching center with the clock at all levels of grades and performance parameters should be consistent with relevant national standards and requirements. . 2.6 load test program, through the man-machine commands or self-test, the equipment for test checks to confirm hardware system trouble-free, and provide test reports. . 3 system check test <o:p> </ o: p> 3.1 exchange system inspection test shall include the following major items: 1 ) The establishment of the system function (1) system initialization; (2) system automatically / manually reload; (3 .) system, auto / manual restart. . 2 ) switching system (1) The words of this Council and access to Council (including the Mobile Office .) calls; (2) local telephone calls tandem; (3) with a variety of users, then switch the call to come and go; (4) domestic and international long distance, and went (to), then call (manual, semi-automatic, automatic); ( .5) City - a long, long - Urban trunk circuit between the call; (6) billing functions; (7) non-telephone services; (8) Special service calls; (9) New business performance; (10) intelligent network features .; (11) ISDN capabilities. . 3 ) maintenance management system (1) software version check, whether the contract .; (2) man-machine command to verify; (3) alarm system testing; (4) traffic observation and statistics; (5) routine tests; (6), the artificial trunk and subscriber line testing; (7) user data, Bureau of .standardized inspection data generation and management; (8) Fault diagnosis; (9) automatic redundancy switching equipment; (10) input and output equipment performance testing. . 4 ) signaling system and network support (1) the user's signal mode (analog ., number); (2) interoffice signaling (with the way of road); (3) system network synchronization; (4) system management features; (5) 112 automatically receive, automatic test function. . 3.2 devices undergo rigorous testing system checks that the stability of the request has reached the preliminary inspection, you can make the test a complete inspection records and project acceptance team, prepare for .initial inspection test. .<o:p> </ o: p> <o:p> </ o: p> <o:p> </ o: p> s .Second part of the for construction project to install transmission equipment <o:p> </ o: p> <o:p> </ o: p> preparation before construction <o:p> </ o: p> 1 on the room requirements <o:p> </ o: p> 1.1 project started before the engine room to inspect the building, started only after the following conditions: 1 ) inside the fitting room has been completed. .Interior is fully dry, floors, walls, ceilings, etc. of the reserved holes, embedded parts of the specification, size, location, quantity, etc. shall comply with construction design requirements; 2 ) to slot route, the specification should meet the requirements of construction design, the cover should be tight, strong, impervious to tank; 3 ) electricity .have been introduced into the engine room, engine room lighting has been able to normal use; 4 ) heating ventilation and access, air conditioning and other facilities have been installed and can provide use. .Indoor temperature and humidity should be consistent with equipment requirements; 5 ) room building grounding and lightning protection grounding, grounding and lead the work has been completed and acceptance, grounding resistance .Construction plans must meet the design requirements; 1.2 engine room must have a valid fire facilities. .And near the engine room and other non-inflammable and explosive dangerous goods store. . 2 inspection of equipment. . <o:p> </ o: p> 2.1 units before the start of construction, material supply units, construction units and maintenance units should be composed of the Joint Inspection Unit, on arrival .construction site equipment, themain material of the varieties, specifications, quantities out of the box inventory and visual inspection, only to start with the following conditions: 1) frame, sub-frames, and reinforcement of parts and wiring, the wiring of the machine plate must be completely .in place, standard models meet the requirements of construction design, look no breakage; 2) cable channel such as iron or cable corridors must be fully in place, construction design specifications meet the requirements of the program. .On the beam, with solid iron, flat iron walkways, columns, iron and other iron between the pole should be straight; 3) copper or aluminum row specification process engineering, construction design should be consistent with the number of requirements, no obvious distortions; 3) RF .coaxial cable, audio distribution cables, power lines, protection of ground cables, data lines and other major cable specifications of the program, the number should be consistent with construction design requirements; all kinds of cables, lines intact skin material to meet the requirements of the factory insulation index. .2.2 In the game the Joint Inspection Unit (station) equipment, materials, do check out of the box, it should make a detailed record and found that there is a shortage, and damage to the phenomenon of moisture from the material supply in a timely manner to contact the relevant units to be addressed. .2.3 The use of substandard construction materials are not allowed. .When the main specifications of the material does not meet the requirements of construction design needs of other materials instead of, you must agree with the prior consent of the design units, the necessary procedures before use. . equipment installation <o:p> </ o: p> 1 channel, column cabinet installation <o:p> </ o: p> 1.1 channel should be installed .meet the following requirements: <o:p> </ o: p> 1) channel installation location should be consistent with the construction plans of the graphic design, the error shall not exceed the <st1: chmetcnv w: st = "on" TCSC = "0" NumberType .= "1" Negative = "False" HasSpace = "True" SourceValue = "50" UnitName = "mm"> 50 mm </ st1: chmetcnv>. .<o:p> </ o: p> 2) columns channel should be a straight line, the error should not be greater than the <st1: chmetcnv w: st = "on" TCSC = "0" NumberType = "1" Negative = "False ."HasSpace =" True "SourceValue =" 30 "UnitName =" mm "> 30 mm </ st1: chmetcnv>. .<o:p> </ o: p> 1.2 with solid iron and on the beam, the beam channel and continue to be strong, straight, no bending .; cable bracket installation should be correct, <o:p> </ o: p> from the uniform. . ≪o:p> </o: p > 1.3 column channel both sides of the plate, respectively, and the top of the rack should be consistent with front and rear panels, the gap between the side .should be uniform, flat, part <o:p> </o: p > Installation complete. .<o:p> </ o: p> 1.4 channel main channel cover, side panels, floor installation should be complete, parts should be complete, uniform gaps. .<o:p> </ o: p> 1.5 installed iron brace between columns should be in a straight line, both ends of the wall reinforcement shall comply with construction plans .design requirements. .<o:p> </ o: p> 1.6 hang install should be strong, vertical. .<o:p> </ o: p> 1.7 iron the paint should be intact, up painting for its color should be consistent with the original paint color .. .<o:p> </ o: p> 2 rack <o: .p> </ o: p> 2.1 rack installation location should meet the design requirements of the construction plans. .<o:p> </ o: p> 2.2 rack installation should correct solid, vertical rack height deviation should not exceed 1 ‰. .<o:p> </ o: p> 2.3 column should be each other to move closer to the rack, rack space shall not exceed <st1: chmetcnv w: st = ."on" TCSC = "0" NumberType = "1" Negative = "False" HasSpace = "True" SourceValue = "3" UnitName = "mm"> 3 mm </ st1: chmetcnv>, was flush out the machine, .are no mixed <o:p> </ o: p> elephant. .<o:p> </ o: p> 2.4 bolt the rack should be used (or wood screws) to ground reinforcement, roof rack and plywood should be used .channel column (column aisle) <o:p> </ o: p> on the beam reinforcement. .<o:p> </ o: p> 2.5 All fasteners must be tightened, the same type of screws should be consistent with the length of the nut exposed. .<o:p> </ o: p> 2.6 Fiber Distribution Frame (ODF), Digital Distribution Frame (DDF) terminal board position, install the alignment and .signs should be consistent with <o:p></ o: p> design requirements. .ODF rack flange installation location should be correct, solid, in the same direction. .<o:p> </ o: p> 2.7 seismic strengthening of equipment should meet the Ministry of Posts and telecommunications equipment installation requirements of seismic reinforcement, reinforcement manner consistent with the construction drawings < .o: p> </ o: p> the design requirements. .<o:p> </ o: p> 2.8 sub-frame installation <o:p> </ o: p> 1) sub-frame should meet the following safety .requirements; <o:p> </ o: p> 2) panel layout should be consistent with design requirements; <o:p> </ o: p> 3) sub-frame and frame assembly of the reinforcement should be consistent with equipment requirements; <o .: p> </ o: p> 4) sub-frame installation should be firm, arranged in neat rows, good contact connectors; <o:p> </ o: p> 5) the installation of network equipment should be consistent with the design drawings .requirements. .<o:p> </ o: p> 3 and into the end of the cable laying .<o:p> </ o: p> 3.1 cable and fiber cable laying <o:p> </ o: p> 1) fiber optic cable .specifications, the program should meet the design requirements, technical specifications should be consistent with design documents and technical regulation <o:p> </ o: p> Fan Book requirements. .<o:p> </ o: p> 2) fiber optic cable route to be consistent with the provisions of the construction drawings and design documents. .<o:p> </ o: p> 3) fiber optic cable second end of the remaining length should be uniform and meet the process requirements. .<o:p> </ o: p> 4) within the fiber optic cable channel bend radius of curvature of not less than 38 ~ <st1: chmetcnv w: st = "on" TCSC = "0" NumberType = "1" Negative .= "False" HasSpace = "False" SourceValue = "40" UnitName = "mm"> 40mm </ st1: chmetcnv>. .<o:p> </ o: p> 3.2 series tie fiber cable <o:p> </ o: p> 1) fiber optic cable in .Channels should be jacketed or trunking protection. .Is preferable to living without casing protection part of the buckle strap banding, <o:p> </ o: p> tie should not be tied too tight. .<o:p> </ o: p> 2) series of fiber cable after the tie in the slot channel should be straight, no twist. .<o:p> </ o: p> 3.3 laying Digital Distribution jumper <o:p> </ o: p> 1) jump .cable programming should meet the design specification documents or technical specifications. .<o:p> </ o: p> 2) jumper to the routing should meet the design requirements. .<o:p> </ o: p> 3) laying the jumpers should be straight, tightly and an appropriate degree. .<o:p> </ o: p> 3.4 cable into the side and protect <o:p> </ o: p> 1) RF coaxial cable .the ends of the deal should meet the following requirements: <o:p> </ o: p> (1) the remaining length of cable should be uniform, coaxial cable stripping dimensions of each layer should be the corresponding part of the cable plug <o:p> .</ o: p> phase for; <o:p> </ o: p> (2) correct welding wire, solid, solder amount, joints smooth, without sharp, not a tumor shape. .Assembly <o:p> </ o: p> coaxial cable plug, accessories should be complete, correct position, the assembly firm. .<o:p> </ o: p> 2)shield the ends of the handle: split header length should be consistent with the coaxial outer conductor terminal block contact. .<o:p> </ o: p> 3) split the first outer casing to be heated shrink, the shrink sleeve length should be uniform medium, thermal uniformity. .<o:p> </ o: p> 4 equipment inspection and testing of the machine .<o:p> </ o: p> 4.1 power and alarm function tests <o:p> </ o: p> 1) supply conditions should meet the following requirements: <o:p> </ o: p> ( .1) Power supply voltage range should meet the equipment requirements; <o:p> </ o: p> (2) conversion power protection equipment should meet the technical requirements. .<o:p> </ o: p> Part installation of power equipment for construction projects <o:p> </ o: p> <o:p> </ o: p> This specification is based on" communication power supply equipment installation design specifications, "" communication power supply equipment for construction and acceptance of technical specifications ", and" .telecommunications air conditioning equipment maintenance manual "and the draft. .<o:p> </ o: p> First, build the project according to the matching the power project. .<o:p> </ o: p> Second, according to planning and site survey to determine the power supply scheme, involving the reported power supply bureau for approval. .<o:p> </ o: p> Third, the computing device power consumption, heat, and use it as far as the equipment selection and business negotiations, the selected device must <o:p> </ o: p> found .provincial bureaus of selection range. .<o:p> </ o: p> IV, commissioned the design (high and low voltage power supply bureau commissioned the construction of the system design). .<o:p> </ o: p> V, the device arrival, the organization qualified installation company to install it. . <o:p> </ o: p> 1 , out of the box pre-construction inspection and testing <o:p> </ o: p> 1.1 electrical room of the construction has been completed, the ground dry and flat, doors, windows installation is complete, the walls painted <o:p> </ o: p> completed. .<o:p> </ o: p> 1.2 lighting, power, ventilation and construction conditions should have. .<o:p> </ o: p> 1.3 reserved hole empty, walk trough, racks, static flooring, embedded threading steel pipe, embedded .hanging bolts, <o:p> </ o: p> position of frame alignment should be consistent with design requirements; reserved holes framework installed, straight and neat; to <o:p> </ o: p> slot .cover formation, the paint evenly; embed pipe diameter appropriate nozzle smooth bend radius compliance <o:p> </ o: p> design requirements, dry and no water pipe; solid straight alignment rack. .<o:p> </ o: p> 1.4 device out of the box by the manufacturers, the construction unit, construction units together for detailed records and comply with <o .: p> </ o: p> the following requirements: <o:p> </ o: p> 1) equipment without damage; <o:p> </ o: p> 2) equipment, accessories and technical data are complete. .<o:p> </ o: p> 2 , equipment installation <o: .p> </ o: p> 2.1 distribution panel and all the positive converter device clear width between the main aisle of not less than <st1: .chmetcnv w: st = "on" TCSC = "0" NumberType = "1" Negative = "False" HasSpace = "False" SourceValue = "2" UnitName = "m"> 2m </ st1: chmetcnv>; 2.2 distribution panel and a variety of converter equipment maintenance between the front and side of the aisle clear width of not less than <st1: chmetcnv w: st = "on" TCSC .= "0" NumberType = "1" Negative = "False" HasSpace = "False" SourceValue = "1.2" UnitName = "m"> 1.2m </ st1: chmetcnv>; 2.3 distribution panel and a variety of converter equipment maintenance between the front and back of the net width of the aisle should be small <st1: chmetcnv w: st =" on "TCSC =" 0 "NumberType =" 1 " .Negative = "False" HasSpace = "False" SourceValue = "1.5" UnitName = "m"> 1.5m </ st1: chmetcnv>; 2.4 distribution panel .and a variety of flow devices for the back and the back of the net width of the aisle should be maintained between the small 1 ~ <st1: chmetcnv w: st = "on" TCSC = "0" NumberType = "1" Negative = "False" HasSpace = ."False" SourceValue = "1.2" UnitName = "m"> 1.2m </ st1: chmetcnv>; 2.5 distribution panel and a variety of converter device .the same column with the installation of communications equipment; power distribution panel and all the positive converter device and communication device between the front or the back of the main aisle of not less than <st1: chmetcnv w: st = "on" TCSC = "0" NumberType .= "1" Negative = "False" HasSpace = "False" SourceValue = "2" UnitName = "m"> 2m </ st1: chmetcnv>; 2.6 .power distribution panel and the back of a variety of converter equipment and communications equipment between the front or the back of the net width of communication equipment should be required to determine the appropriate layout. . 2.7 converter power distribution panel and a variety of devices between the wall and the front of the main aisle clear width of not less than <st1: chmetcnv w: st = " .on "TCSC =" 0 "NumberType =" 1 "Negative =" False "HasSpace =" False "SourceValue =" 1.5 "UnitName =" m "> 1.5m </ st1: chmetcnv>; 2.8 converter power distribution panel and a variety of devices between the wall and the back of the net width of not less than the secondary aisle <st1: chmetcnv w: st =" on "TCSC =" 0 " .NumberType = "1" Negative = "False" HasSpace = "False" SourceValue = ".8" UnitName = "m"> 0.8m </ st1: chmetcnv>; such as the main aisle, their clear width of not less than < .st1: chmetcnv w: st = "on" TCSC = "0" NumberType = "1" Negative = "False" HasSpace = "True" SourceValue = "1" UnitName = "m"> 1 m </ st1: chmetcnv>; . 2.9 installation location should meet the design requirements, the deviation should be less than 10 mm; .2.10 solid frame reinforcement, reinforcement in a manner consistent with design requirements. .A rack of the machine surface should be flat, and its deviation per meter should be less than 3 mm, total deviation is less than 15 mm column, the rack should be flush with the top surface, between the rack should move closer to each other. . 2.11 rack should be straight, the error should be less than 2 mm; 2.12 machine .Rack grounding resistance should meet the design requirements; 2.13 wiring is correct, no touch, the short circuit situation, the insulation resistance should be not less than 2 MΩ. . 3 , .battery arrangement <o:p> </ o: p> 3.1 Dry flat ground, doors, windows installation is complete, the wall painting is completed. .<o:p> </ o: p> 3.2 Vertical discharge clear width of aisles between the battery cells should not be less than 1.5 times the width of the smallest in the not .should be less than <st1:chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="8" UnitName="m"> 8m </ st1: .chmetcnv>; 3.3 Vertical discharge of batteries for two-tier arrangement, the clearance between the upper and lower levels from the total height of the battery is generally 1.2 to 1.5 times. . 3.4 Vertical discharge of batteries for two-tier arrangement, a set of clear width between the two batteries should meet the power requirements of seismic frame structure. . 3.5 Vertical discharge batteries for the secondary side of the aisle between the wall and clear width of not less than <st1: chmetcnv w: st = "on" TCSC = " .0 "NumberType =" 1 "Negative =" False "HasSpace =" False "SourceValue =" .8 "UnitName =" m "> 0.8m </ st1: chmetcnv>; such as when the main road to go, its clear width is generally not .1.5 times smaller than the cell width, the minimum of not less than 1 m; Vertical discharge the battery single column layout can be set along the wall, the side of the clear width between the wall and is generally <st1: chmetcnv w: st = " .on "TCSC =" 0 "NumberType =" 1 "Negative =" False "HasSpace =" False "SourceValue =" .1 "UnitName =" m "> 0.1m </ st1: chmetcnv>; 3.6 Vertical discharge battery set against the wall at one end, the out-side clear width between the wall and the battery is generally not less than the <st1: chmetcnv w: st =" on "TCSC =" 0 " .NumberType = "1" Negative = "False" HasSpace = "False" SourceValue = ".2" UnitName = "m"> 0.2m </ st1: chmetcnv>; 3.7 Li batteries placed near the room entrance at one end, you should leave the main aisle, the clear width is generally 1.2 ~ <st1: chmetcnv w: st =" on "TCSC =" 0 "NumberType =" 1 "Negative =" .False "HasSpace =" False "SourceValue =" 1.5 "UnitName =" m "> 1.5m </ st1: chmetcnv>, the smallest in should be <st1: chmetcnv w: st =" on "TCSC =" 0 "NumberType =" 1 ."Negative =" False "HasSpace =" False "SourceValue =" 1 "UnitName =" m "> 1m </ st1: chmetcnv>. . 3.8 horizontal discharge side of valve-regulated batteries should not be less than the clear width between the <st1: chmetcnv w: st = "on" TCSC = "0 ."NumberType =" 1 "Negative =" False "HasSpace =" False "SourceValue =" .2 "UnitName =" m "> 0.2m </ st1: chmetcnv>; 3.9 release valve-regulated batteries lying positive, or between front and side or back of the walkway between the total height of clear width of not less than 1.5 times the battery, the minimum of not less than <st1: chmetcnv w: .st = "on" TCSC = "0" NumberType = "1" Negative = "False" HasSpace = "False" SourceValue = "1.2" UnitName = "m"> 1.2m </ st1: chmetcnv>. . 3.10 release valve-regulated batteries lying front walkway between the wall and clear width of not less than 1.5 times the total height of the battery, the minimum of not less than .<o:p> </ o: p>.

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Thursday, March 3, 2011

College】【weak for construction project to install communications equipment】.

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Thursday, March 3, 2011

College】 【weak for construction project to install communications equipment】.

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College】【weak for construction project to install communications equipment】.