【 Weak current College 】 automatic fire alarm system installation process standards---Power By 【 China power house network 】

First, the scope of this standard is applicable to industrial and civil construction and installation of automatic fire alarm system. Does not apply to the production and storage of propellants, explosives, ammunition, explosive and other dangerous places set explosion fire auto-alarm system installation works. II. prepares 1, equipment, material: main equipment: regional fire alarm controller; centralized alarm control equipments; fire Centre control equipment; image display and printing equipment; fire standby power supply; fire detectors (smoke, heat, gas, etc.); manual fire alarm button; sound and light display alarm; various modules (Repeater); various linkage control and signal feedback equipment; fire communications equipment (such as fire phone); fire broadcasting equipment. 2. main equipment: tapping machine, set screen plates, hydraulic bending machine, manual bending, welding, gas welding tools, drill, drill, saw, hammer, grinding wheel openings, pressure line of pliers, air guns, steel saw, hammer, wrench, level tape, ruler, ball, steel tape drop ball, electric iron, electric furnace, tin pot, RASP, round RASP, pressure on the case, the pressure of pliers, electric tools, high stool, tool bags, toolboxes, universal table, megohmmeter, try Bell, intercom phones, walkie-talkies, try breathing apparatus, portable hair dryer and other machines. III. construction technology 1, steel pipe and trunkings install main requirements: 1) wire protection tube encountered the following conditions should be easy to thread a location, an additional connection box: pipeline length exceeds 30m, bent pipe length over time; 20m, a bent pipe length over time; 15m, second bending; pipe length exceeds 8m, three bending. 2) wire protection tube bending Department should not have the crack crease, depression, and bending flat degree should not be greater than 10 per cent of diameter. 3) that matches the tube bending radius should not be less than when the outer diameter of 6 times, dark pipe bending radius should be not less than 6 times the outer diameter, when buried or concrete, bend radius should be not less than 10 times the outer diameter. 4) horizontally or vertically laid out with wire protection pipe installation allows deviations from 1.5, full length deviation should not be greater than the inside diameter of pipe 1/2. 5) laying in dusty or damp premises wiring protection pipe, tube and the connection should be closed. 6) pipeline laying after deformation joint of buildings (including settlement joints, expansion joints, seismic joints, etc.) to take compensatory measures. 7) out with steel tube should be neat and tidy, fixed spacing should be uniform, steel card the maximum distance between the tables, cards and terminals elbows midpoint, electrical apparatus or box (carton) edge distance should 0.15 ~ 0.5m. Steel pipe clamp the maximum distance between (m) of laying pipe type pipe diameter (mm) 15 ~ 2025 ~ 3240 ~ 5065 above hanger, bracket or thick-walled steel pipe along the wall laying 1.52.02.53.5 thin-walled steel 1.01.52.0 — 8) galvanized pipe should be threaded connection or the connection casing securing screws should not be used for fusion welding connection, so as not to undermine the zinc coating. 9) piping and wiring duct installation should take account of the different systems and different voltage, current categories of line, and should not be put to the same root canal or trunking hole with Groove. 10) within the roof of a building must adopt the metal pipes, wiring trunkings. 11) trunking installation use separate fixtures hoisting or supports fixed, hanging in diameter should be not less than 6mm, fixed support spacing generally should not be greater than 1 ~ 1.5m, in and out of the terminal box, boxes and cabinets, corner, turning and bending stitch at each end and t-connectors, three-side 0.5m set fixed support. 12) trunking interface should be straight, the slot cover should be complete, formation, no sitting corner; flutes outlet orifice and corner, the corner should be positioned properly, smooth, no burrs. 13) trunkings connections should not be crossed the floor or walls etc. 14) fixed or connection trunking of screws or other fasteners after the end of fastening and trunking touches in smooth surface, i.e. nuts-and-drop online slot wall, flush fastening with pad and spring mat; trunking laying straight neat, horizontal and vertical tolerances for the length of 2 percent, and full length tolerances to 20mm, side-by-side installation when the slot cover should be easy to open. 15) metal pipe or trunkings and fire protection equipment using a metal hoses and flexible metal tube for crossover, its length is not greater than 2m, and should be fixed, fixed clamping spacing should not be greater than 0.5m, and end with a lock or clamp fixed, and by the grounding. 2, pipe laying and insulated wires within the cable wiring requirements: 1) approach of insulated wires and cables of specifications, quantity, quality, and so should meet the design requirements and the timely fill out entry material inspection records. 2) in order to meet the wires and cables of the mechanical strength requirements, pipe laying of insulated wires, conductors cross-section minimum should not be less than 1mm2; trunking laid within the insulated wire minimum section should not be less than 0.75 mm2; multi-core cable core minimum section should not be less than 0.5 mm2. 3) wear tube insulated conductors or cables should not exceed the total of pipe cross sectional area of 40%, laid in closed Groove within the insulated conductors or cables should not be greater than the total area of flutes in the net cross-sectional area of 50%. 4) wire in tubes or trunking, should not have a connector or kink. Wire connectors should be in the junction box of welding or crimping. Different systems and different voltage, current categories of line should not be worn in the same root canal or Groove within the same slot. 5) fire alarm with transmission lines should choose a different color of insulated wires, probes the "+" line is red, the "-" line should be blue, the rest of the line should be based on different uses other colors match. But the same project in the same purpose of wire color should be consistent, terminals should have a label. 6) conductor connection connector should not increase the resistance value, forcing wire should not reduce the original mechanical strength, they cannot reduce the dielectric strength, to meet the above requirements, the wire connection should take the following approach: Ø plastic wire 4mm2 following generally should use exploitation clamp down wire insulation, exploitation is woven wire application electrician's knife RIP outer braid and left about 12mm insulating units, wire length wiring methods and requirements for mechanical strength. Ø conductors insulated units and Qi closure, in insulated units about 12mm Department with itsIn a root core in another core winding 5 ~ 7 circle after the cut, the remaining head and back pressure in Aceh winder, and swiping the Tin. Ø LC safety press line cap: is copper press line cap, divided into yellow, white, red tricolor, for 1.0 1.5 mm2, mm2, mm2, mm2 2.5 4 of 2 ~ 4 wire connection. Its operation is wire insulation stripped 10 ~ 13mm (by CAP model), clear the oxides, according to the rules, use the appropriate press line cap, the core into the press line cap for pressure nozzle, false if filled to half core fold back (stripping length doubles), filling up. Core plug in the end, the conductor insulation with pressure over the flat of the spout, and packages in Cap shell, and then use special crimping pliers for compaction. Ø stranded copper soft wire screw terminal should be tightened soft core made under the eyes, nose or small copper, Tin-coated hot-wash NET after pressing then padded with screw fastening. Ø copper single conductors and pinhole type wiring pile connection (crimp), the connection of wire line core insertion wiring pile head pinhole, conductor bare pinhole 1 ~ 2mm, pinhole diameter greater than core 1 x, you need to fold back into the crimping. If multiple soft copper wire, Tin chloride should be immediately rinse, clean and crimping. Ø wire connections have pierced: selection of rubber (or plastic) insulating tape beginning from the wire connector good insulation, winding 1 ~ 2 insulating tape width, and then to half-amplitude overlap. The bandage should as far as possible in the process of tightening the insulating tape. Finally in the insulating layer wrapped after 1 ~ 2 circle, and then make the tied back. Then use black blanket wrap, wrap, to linking to half-width side lamination for winding, while in the process of tightening the adhesive plaster bandage, wire connectors at both ends with black tape to seal tightly. 7) conductors connection completed, should be examined after adoption of 500V, range 0 ~ 500 M ω megohmmeter, wire, cable, wire, etc. on the screen, it shakes the insulation resistance value should not be less than 20 M Ω. Note You cannot take a shake of fire fighting equipment. Shaking speed should be maintained at around 120r/min should be used when reading 1 minutes of reading. 3. automatic fire alarm equipment installation requirements: 1) detector should be horizontally, as you must tilt the installation angle should not be greater than 45 °. 2) detector around 0.5m, there should not be of retaining structures, the detector to the walls, beams and the horizontal distance from the edges should not be less than 0.5m. 3) detector and air conditioning supply outlet side of the horizontal distance should not be less than 1.5m, see Figure 6-8, to porous air ceiling orifice horizontal distance should not be less than 0.5m. (Refers to distance detector Center RADIUS 0.5m range holes filled with non-burning material, or to take similar measures wind). 4) detector bases should be fixed securely, in the ceiling should be installed on the box is fixed to the main joist or rooting for the bracket on the roof, the wire must be reliable crimping or soldering, welding is not allowed when using a corrosive flux, external conductors due allowance, in 0.15m end should be clearly marked. 5) detector wiring should design and manufacturer requirements for wiring, but “ + ” line should be red, “-” line should be blue, the remaining line according to the different uses of other colors, but the same project in the same wire color should be consistent. 6) detector head on is about to be installed when you debug, installation should be properly safeguarded and should take dust, moisture, corrosion prevention measures. 4. manual installation of fire alarm button 1) alert zones each fire partitions should at least set a manual alarm button, from a fire anywhere within a partition to the most recent one manual fire alarm button walking distance should not be greater than 30m. 2) manual fire alarm button should be installed in a clear and easy-to-wall, distance and height 1.5m, solid and should not be installed. 3) manual fire alarm button external conductors should be left for the allowance, and 0.10m in the end should be clearly marked. 5, terminal box and module box installation 1) terminal box and module box General settings in dedicated shafts, according to the design requirements of height of metal expansion bolt fixing on the wall that Pack, and the installation should be straight and firm, not italic. 2) used on the line for on line numbering, and then attach the conductor left certain allowance, the control centre to the route and fire alarms and other binding the control line, respectively the beaming in Terminal Board on both sides, left for route control centre has the right to fire alarm detectors and other devices to the control line. 3) pressure line before the conductors to shake, qualified and then pressing design and manufacturer requirements for pressure line. 4) module inside the module press manufacturers and design requirements of an assembly line, reasonable layout, and the installation should be firm, and the use of signs and line number. 6. installation of fire alarm controller 1) area alarm controller on the wall installation, basal margins ground height should not be less than 1.5m, available metal expansion bolts or bolts burried note for installation, fixed to a solid, straighten out, installed in the lightweight wall reinforcement of measures to be taken. Near the door side of the shaft should not be less than 0.5m distance. Positive action distance should not be less than 1.2m. 2) centralized alarm control room or fire control center equipment installation you should meet the following requirements: Ø floor installation, its bottom should be higher than the ground 0.05 ~ 0.2m, channel or the water table as a basis, such as an active floor used by the channel base should cement ground rooting firmly fixed. Channel to straighten the rust, and brush antirust paint, installs when using horizontal ruler, small line looking good flatness and firmly fixed with bolts. Ø control equipment before operation distance, single row arrangement should not be less than when double row layout 1.5m, should not be less than the others watch 2m often work side, the control panel to the wall should not be less than the distance, disk repair 3m distance should not be less than the control plate arrange 1m length greater than 4m, control panel should be set at a width of not less than the width channel. 4. finished product protection 1, pipe laying on concrete or walls, to timely blocking the spout and box so as not to enter under the influence of impuritiesProcedure for threading, please tick chisel; civil strike of concrete or masonry walls when you want to be fit so as not to cause the laying of steel pipe displacement rework. 2. tube thread: Groove inner wiring conductor to the cushion on the box or boxes inside, cover letter, cover, time slots so that the wire is damaged or lost. 3, fire alarm system equipment storage, to dust, humidity, anti, anti, anti pressure drop, safekeeping, and handle incoming inspection and receiving procedures. 4, automatic alarm equipment installation, civil works should meet the floors, walls, doors and Windows, shotcrete, in a special guard conditions for installation. 5, fire control room and the room is equipped with a controller should work completed, close the door and window locks, the device should cover dust-proof cover. 6. alarm detectors should be loaded on the cradle, and wear a dust cover and then loaded probe when debugging. 7, terminal box and module containers in the finished work to the door locked, on the box cover to protect the body from being contaminated. 8, easily lost damaged equipment such as Manual alarm button, speakers, telephones and phone jack, etc. should finally installed, the installation should take measures to ensure that the walls, floors, ceiling from damage and contamination.