What information do you need to do for the installation of outdoor high-pressure pipeline in building engineering?

Materials to be used in the installation of outdoor high-voltage pipelines in construction projects;

First, the requirements for construction personnel

Security engineering is intrusion alarm, TV monitoring, access control, explosion prevention and safety inspection for the purpose of maintaining social order and protecting the safety of the country and people's lives and property. Most of the construction units are key units or departments such as party and government leaders, national key cultural relics systems and important financial systems. Therefore, security engineering construction personnel are required to have not only high technical level, but also good political quality to avoid loopholes in construction.

Security engineering construction personnel shall meet the following conditions:

1. Abide by national laws and have no criminal history.

2. Strictly abide by the project confidentiality system.

3. Accept the management of the competent construction department and abide by various rules and regulations.

4. Monitor and main construction personnel must hold electrician qualification certificate, or have corresponding professional knowledge and skills, and have more than three years of construction experience.

Second, the invasion report project construction requirements

1. General requirements

(1) An on-site engineer must be set at the construction site of the intrusion alarm project to guide the construction, and cooperate with the construction unit to do a good job in the inspection and acceptance of the concealed works during the construction.

(2) Before the construction of the intrusion alarm project, the following drawings should be prepared:

(1) detector protection plan, central equipment layout, system principle and system connection diagram.

(2) pipeline requirements and pipeline laying diagram.

(3) Equipment, equipment installation requirements and installation drawings.

(3) The construction of the intrusion alarm system shall be carried out according to the drawings and shall not be changed at will. If it is really necessary to change the original design drawings, the examination and approval shall be carried out according to the procedures, and the examination and approval documents (notices, etc.) shall be submitted. ) shall be implemented after being signed by authorized personnel of both parties.

(4) When the intrusion alarm system is completed, the construction unit shall submit the following drawings:

(1) All drawings before construction.

(2) Project completion drawing.

③ Design change documents.

(4) Test records. Including insulation resistance, grounding resistance and other test data.

(5) concealed engineering acceptance record.

Step 2 connect wires

(1) The wiring of alarm system shall meet the requirements of 1 in the current national standard Code for Construction and Acceptance of Electrical Equipment Engineering (Note: this is the compilation name of relevant standards, which is extended below).

(2) In principle, all kinds of wires of the alarm system should be shortened as much as possible.

(3) threading in the pipe or groove shall be carried out after plastering and ground engineering. Before threading, the accumulated water and sundries in the pipe or groove should be removed. Butter or talcum powder should be applied when threading. The wires entering the pipeline should be straight, without joints and kinks.

(4) The wire connector shall be welded in the junction box or connected with the terminal.

(5) Wires with different systems, different voltage levels and different current categories should not be worn in the same tube or the same trunking.

(6) The direction and installation position of surface-mounted pipes should be coordinated with the interior decoration layout.

(7) Junction boxes shall be installed at the intersection of vertical wiring and horizontal wiring to ensure the firmness of wiring and the neatness of appearance.

(8) When the conductor is under the floor, in the ceiling or through the wall, the conductor should be inserted into the pipe.

(9) In dusty or humid places, the pipeline interface shall be sealed.

(10) In general, the total area of wires (including insulation layer) in the pipe should not exceed 2/3 of the cross section in the pipe.

(1 1) The distance between two fixed points of the pipeline shall not exceed 1.5 14. The following parts shall be equipped with fixing points:

① Pipe joint.

② 0.2m away from the junction box.

(3) Pipe corner.

(12) In the same system, different wires should be marked or numbered with different colors. For example, the positive end of the power line is red, the ground end is black, the signal line is yellow, and the address signal line is white. There are many address signal lines in the alarm system, so you can mark the address signal lines of each floor or sector with the same color and then number them one by one.

(13) Measure the insulation resistance of each loop with a 500V megohmmeter, and the insulation resistance to the ground should not be less than 20M0.

3. Installation of intrusion detector

(1) The intrusion detector (hereinafter referred to as the detector) should be electrified before installation to check its working condition and make records.

(2) The installation of the detector shall meet the requirements of Code for Installation, Construction and Acceptance of Electric Power Equipment.

(3) The detector shall be installed according to the design requirements and drawings.

(4) The installation of indoor passive infrared detectors shall meet the following requirements:

(1) The wall-mounted passive infrared detector should be installed at an angle of 900 to the possible invasion direction, with a height of about 2.2m The inclination angle between the detector and the wall should be determined according to the specific situation of prevention.

(3) The passive infrared detector of the ceiling is generally installed in the key prevention position near the top of the ceiling and must be installed horizontally.

(3) The passive infrared detector in the corridor must be installed at the end of the corridor, with a view along the corridor and a height of about 2.2m. ..

(4) The passive infrared detector must be installed firmly, and it is not allowed to be installed directly above the radiator, electric heater, stove and other heat sources; Not allowed to face air conditioners, ventilation fans and other objects; It is not allowed to face the moving and possibly moving objects in the protection area. Protect the detector from direct light, and no obstacles are allowed in front of the detector.

(5) The installation of active infrared detector shall meet the following requirements:

① The installation is firm, and the transmitter and receiver are aligned to make the side detection effect best.

② There should be no possible obstacles between the transmitter and the receiver. Such as: shelter from the wind and blow trees.

(3) When the reflector is used to assist the warning, the warning distance is shorter than when shooting. The following is a schematic diagram of early warning assisted by mirrors (see figure 1).

Figure 1

(4) Pay attention to protect the lens during installation, and wipe it clean with lens paper if there is dust.

(6) The installation of microwave-passive infrared dual-technology detector shall meet the following requirements.

① The wall-mounted microwave-passive infrared dual-technology detector should be installed at an angle of 45 with the possible invasion direction. Angle and azimuth (if limited by conditions, the detection sensitivity of passive infrared unit should be given priority), the height is about 2.2m, and the inclination angle between the detector and the wall should be determined according to the specific situation of prevention.

(2) The suspended ceiling microwave-passive infrared dual-technology detector is generally installed on the suspended ceiling near the key prevention parts and must be installed horizontally.

(3) The corridor microwave-passive infrared dual-technology detector must be installed at the end of the corridor, with the field of view facing the corridor, and the height is about 2.2m

④ Obstacles and possible obstacles are not allowed in front of the detector.

⑤ Other matters needing attention in installing microwave-passive infrared dual-technology detector can be referred.

Installation of passive infrared detector.

(7) The installation of sound control-vibration dual-technology glass breakage detector shall meet the following requirements:

① The detector must be firmly installed on the wall or ceiling near the glass.

② It cannot be installed above the curtain box above the protected glass.

(3) After installation, the sensitivity should be carefully adjusted by using the glass breakage simulator.

(8) The installation of magnetic switch controller shall meet the following requirements:

(1) The magnetic switch controller shall be firmly installed on the protected doors and windows, with a distance of 150MM from the doors and windows.

(2) The reed is installed on the fixed door and window frame, and the magnet is installed on the movable door and window, and the two are aligned, with a spacing of about 0.5cm.

(3) When installing the magnetic switch detector (especially the concealed magnetic switch), it will be violently impacted to prevent the reed switch from breaking.

(9) The installation of cable vibration detector shall meet the following requirements:

When (1) is installed on the grid fence, the signal processor (on the column of the interface fence, the cable should be laid at 2/3 of the height of the grid.

(2) When laying vibration cables, fix a circle every 20 cm, with a radius of about 8 cm (as shown in Figure 2).

(3) If the warning perimeter needs to pass through the gate, the cable can be inserted into the metal tube, and the buried depth is1m.

(4) The peripheral corners should be specially treated to prevent the cables from bending into dead corners and abrasion.

⑤ During construction, the cable shall not be excessively stretched and twisted, and the cable sheath shall not be damaged. The cable end treatment shall meet the requirements of Code for Construction and Acceptance of Electrical Equipment Installation Engineering, and shall be moistureproof.

(10) The installation of electric vibration detector shall meet the following requirements:

① Keep away from vibration sources and objects that may generate vibration. Such as: stay away from the refrigerator indoors; Don't install it outdoors under a tree.

(2) Electric detectors are generally installed on walls, floors or safes that may be invaded. The vibration direction of the sensor in the detector should be consistent with the vibration direction that may be caused by man-made intrusion, and should be firmly connected.

(3) When buried underground, it needs to be buried to the depth of 10cm, and the surrounding soil should be compacted.

4. Installation of alarm controller

(1) The installation of alarm controller shall meet the requirements of Code for Construction and Acceptance of Electrical Equipment Engineering.

(2) When the alarm controller is installed on the wall, the height of its bottom edge from the floor should not be less than 1.5m, and there should be enough activity space on the front.

(3) The alarm controller must be installed firmly and correctly. When installed on a loose wall, reinforcement measures should be taken.

(4) The cables or wires leading into the alarm controller shall meet the following requirements:

(1) wiring should be arranged neatly, without crossing, and should be fixed firmly.

(2) The lead end shall be numbered, and the number shall be consistent with the drawing, with clear handwriting and not easy to fade.

② Each terminal of the terminal board shall not exceed two wires.

(4) The allowance of cable core and conductor shall not be less than 20cm.

⑤ The wires should be bundled.

When the wire is introduced into the conduit, it should be blocked at the inlet conduit.

(5) The alarm controller shall be firmly grounded, and the grounding resistance value shall be less than 40Ω (when ordinary grounding devices are used, the grounding resistance value shall be less than 10). Grounding should be clearly marked.

5。 Debugging of alarm system

(1) General requirements

All landowners alarm system debugging, should be carried out in the building decoration and system construction.

(2) Before debugging the alarm system, you should have the drawings and materials of system design, design change documents (notices) during construction and inspection and acceptance records of concealed works.

(3) The person in charge of debugging must have intermediate professional and technical titles, and be held by engineers and technicians who are familiar with the system.

(4) There are instruments and equipment for debugging, which meet the measurement requirements.

⑤ Check the construction quality and do a good job of handover with the construction team.

(2) Debugging

(1) Before commissioning, check the lines and effectively deal with misconnection, open circuit, short circuit and virtual welding. ?

(2) Commissioning should be carried out in different regions, from small to large.

(2) After the alarm system is powered on, the working condition of the system should be checked according to the General Technical Requirements for Anti-theft Alarm Controller and the related requirements of system design functions. The main inspection contents are:

A. Alarm function of alarm system, including emergency alarm, fault alarm and other functions.

B. self-check function.

C number the detectors and check the display function of the alarm parts.

D. Equipment and disarming function of alarm controller.

E. monitoring or intercom function.

F. alarm recording function.

g？ Automatic power conversion function.

④ Adjust the sensitivity of the detector to make the system in the best working condition.

⑥ The whole alarm system shall be powered on continuously for at least 12 hours, and its working state shall be observed and recorded. If there is any fault or false alarm, carefully analyze the reasons and deal with it effectively.

⑧ After debugging, fill in the debugging report. The debugging report can be the "Intrusion Alarm and TV Monitoring System Debugging Report" drawn in this manual (); It can also be made into tables by the debugging unit itself.

(3) Write the completion report.

Third, the TV monitoring project construction requirements

1. General requirements

(1) The construction site must be provided with on-site engineers to guide the construction, and cooperate with the construction unit in the detection and acceptance of concealed works.

(2) Before the construction of TV monitoring project, the following drawings should be prepared:

① System principle and system connection diagram.

② Equipment installation requirements and installation drawings.

③ Design and equipment arrangement of the central control room.

(4) pipeline requirements and pipeline laying diagram.

(3) The construction of TV monitoring system shall be carried out according to the design drawings and shall not be changed at will. If it is really necessary to change the original drawings, it shall be examined and approved according to the procedures, and the examination and approval documents (notices, etc.) shall be submitted. ) shall be implemented after being signed by authorized personnel of both parties.

(4) When the TV monitoring system project is completed, the construction unit shall submit the following drawings:

⑦ All drawings and materials received before construction.

(2) Project completion drawing.

② Design change documents.

2. Cable laying

(1) must be laid according to the drawings, and the construction quality should meet the requirements of Code for Cable Design of Electric Power Engineering.

(2) Prepare the instruments, equipment, tools and construction materials needed for construction in advance. When there are obstacles on the construction site, they should be removed in advance.

(3) According to the requirements of design drawings, choose cables and try to avoid cable connection. Welding or special connectors must be used.

(4) Power cables and signal cables should be laid separately.

(5) Try to avoid harsh environment when laying cables. Such as high temperature heat source and chemical corrosion area.

(6) Stay away from high-voltage lines or high-current cables, and wear metal pipes when it is difficult to avoid them to prevent interference.

(7) When laying cables synchronously with building construction, the pipeline should be laid in the building, and the material and laying method of the pipeline should be selected according to the building design specifications.

(8) In the environment with strong electromagnetic interference (such as near radio stations and TV stations), cables should be buried underground through metal pipes as far as possible.

(9) In the case of little electromagnetic interference, PVC flame retardant pipes can be used.

(10) Before the cable passes through the pipe, the accumulated water and sundries in the pipe should be removed. When threading, butter or talcum powder should be coated. The cable entering the nozzle should be straight, and there should be no joints and kinks in the cable inside the pipe. Do moistureproof and antiseptic treatment after wearing.

(1 1) The distance between two fixed points of the pipeline shall not exceed1.5mo.

(12) The cable shall pass through the lower part of the connecting equipment with a certain margin.

(13) The cable laid in the trench or ceiling must pass through the pipe (metal pipe or PVC flame retardant pipe is selected as appropriate) and be fixed on the wall.

(14) Mark and number the cable ends.

3. Optical cable laying

(1) Before laying the optical cable, check the optical fiber for breakpoints, dents and other damages.

(2) Select the length of optical cable according to the construction drawings, and make the joints avoid obstacles such as river ditches and traffic arteries when splicing.

(3) The bending radius of the optical cable should not be less than 20 times of the outer diameter of the optical cable. The optical cable can be towed by a tractor, and the end should be treated technically. The reinforcing core should be added with traction force, with the traction force not exceeding 150kg and the traction speed of 10m/min. The length of bow I should not exceed 1kmo.

(4) The reserved length of optical cable connector should not be less than 8mo.

(5) After the optical cable is laid for a period of time, check whether the optical cable is damaged, and conduct sampling test on the optical cable laying loss. When it is confirmed that there is no damage, continue.

(6) The optical cable connection shall be operated by specially trained personnel, and the connection shall be monitored by optical power meter or other instruments to minimize the connection loss. After connection, connection protection should be done and cable connector sheath should be installed.

(7) The end of the optical cable is bound with plastic tape, coiled and put into the reserved box of the optical cable, and the reserved box is fixed on the pole. When the underground optical cable leads to the pole, it must pass through the metal tube.

(8) When laying optical cable, it is necessary to measure the total loss of the channel, and observe the waveguide attenuation characteristic curve of the whole optical fiber channel with an optical time domain reflectometer.

(9) The connection points and terminals of optical cables shall be permanently marked;

4. Installation of front-end equipment

(1) General requirements

① Install according to the installation drawing.

② Before installation, the installed equipment should be electrified for inspection.

(2) The installation quality shall meet the requirements of Code for Installation Engineering and Acceptance of Electrical Devices.

(2) Install the bracket and the tripod head

(1) Check whether the pan/tilt rotates smoothly and whether the brake has a return trip. After confirmation, lock the starting point and end point of pan-tilt rotation according to the design requirements.

(2) Brackets and buildings, brackets and Yuntai should be installed firmly. The connected power line and control line should be fixed with a certain margin, so as not to affect the rotation of Yuntai. The installation height is based on the principle of meeting the protection requirements.

(3) Installation of decoder

The decoder shall be firmly installed on the building, and shall not tilt, and shall not affect the rotation of the pan/tilt (camera).

(4) Installation of camera

① Before installation, test and adjust the camera to make it in normal working condition.

(2) The camera should be firmly installed on the Yuntai, and the length of the tail line should not affect the rotation of the Yuntai (camera), and the tail line should be protected.

③ Try to avoid backlight when the camera rotates.

(4) If the outdoor camera is significantly higher than the surrounding buildings, lightning protection measures should be taken.

⑤ Do not open the camera lens cover when moving and installing the camera.

⑥ Please refer to the above requirements when installing a fixed camera.

5. Install central control equipment

(1) Install the monitor

(1) The display should be installed on the display cabinet (rack) correctly and smoothly. There should be a good ventilation and heat dissipation environment.

(2) The distance between the main monitor and the monitoring personnel should be 4 times the diagonal length of the main monitor screen. Six times.

③ Avoid direct sunlight or artificial light source on the fluorescent screen. The background illumination of the fluorescent surface should not be higher than 100Lx.

④ The distance between the back and side of the monitor cabinet (frame) and the wall should not be less than 0.8 megohm.

(2) Installation of control equipment

(1) The console shall be installed correctly and smoothly, and the equipment in the cabinet shall be installed firmly. The screws, washers, springs and washers used in the installation shall be installed as required without omission.

(2) The console or cabinet plug-in equipment shall be in reliable contact, installed firmly, and free from distortion and falling off.

(3) All wires in the monitoring room shall be provided with cable troughs and wire inlet holes according to the positions of monitors and control equipment.

(4) When all wires are connected to the equipment, margins shall be reserved and permanently marked for maintenance and management.

6. Power supply and grounding

(1) All grounding electrode resistances must meet the design requirements. If it can't meet the requirements, non-corrosive long-term resistance reducer can be added to the backfill soil of grounding electrode or the grounding device can be replaced.

(2) The lightning protection and grounding installation of the system shall be carried out in strict accordance with the design requirements. Grounding installation is best carried out at the same time as civil construction.

7. Debugging of TV monitoring system

(1) General requirements

(1) The debugging of TV monitoring system should be carried out after the building decoration and system construction.

(2) Before the TV monitoring system is debugged, there should be construction drawings, design change documents, detection and acceptance data of concealed works, etc.

(3) The person in charge of debugging must have intermediate professional and technical titles, and be held by engineers and technicians who are familiar with the system.

(4) There are instruments and equipment for debugging, which meet the measurement requirements.

⑤ Check the construction quality and do a good job of handover with the construction team.

(2) Preparation before commissioning

① Power supply detection. Turn on the main power switch of the console and detect the AC power supply voltage; Check the voltmeter reading on the regulated power supply; Close the sub-power switch and detect the terminal voltage and DC output polarity of each output. Power on each circuit after confirmation.

② Line inspection. Check whether all kinds of wiring are correct. Use a 250-volt megohmmeter to measure the control cable, and the insulation resistance between wire cores and between wire cores and ground shall be not less than 0.5 megohm; When measuring power cables with a 500-volt megger, the insulation resistance between cores and between cores and ground should not be less than 0.5M0

② Measurement of grounding resistance. The metal protective tube, cable tray, metal trunking, distribution steel pipe and metal shell of all kinds of equipment in the monitoring system shall be grounded to ensure a reliable electrical path. The grounding resistance of the system should be less than 40 ohms.

(3) Debugging of the camera

① Turn off the power switch of the console and monitor. If the indicator light of the device is on, you can turn off the power of the camera and the image will be displayed on the monitor screen.

② Adjust the aperture (electric aperture lens) and focus to make the image clear.

③ Change the focal length of the zoom lens and observe the image definition during zooming.

(4) Pan/pitch remote control, if the image clarity changes little during the camera's static and rotating process, it is considered that the camera works normally.

(4) Debugging of Yuntai

(1) Remote control translation/tilt to make it rotate up and down, left and right. If there is no noise (noise should be less than 50dB), no jitter, and the motor does not generate heat when rotating, it is considered normal.

(2) When the Yuntai rotation is large, it shall be handled in time in case of the following circumstances.

A. the tail line of the camera and the pan/tilt is tight.

B. there are obstacles in the process of rotation. Such as: whether decoder, walkie-talkie, detector, etc. Stop the camera from rotating.

C. Backlight camera is available at key monitoring positions.

(5) System debugging

(1) System debugging shall be carried out after the debugging of single equipment is completed.

② Number each camera according to the design drawings.

② Measure the horizontal definition and gray scale of the system with a comprehensive test card.

④ Check the linkage performance of the system.

⑤ Check the video quality of the system.

⑥ Change the position and brightness of the lights to improve the image quality when the site conditions permit and the construction unit agrees.

(6) After all indicators of the system meet the design requirements, the system can be started continuously.

24 hours, if there is no abnormality, the debugging is over.

(7) Fill in the debugging report. The debugging report can be the "Intrusion Alarm and TV Monitoring System Debugging Report" drawn in this manual (see page 54); It can also be made into tables by the debugging unit itself.

(8) Write the completion report.

the third part

User manual of intrusion alarm and TV monitoring project

A, security engineering units and personnel requirements

Intrusion alarm and TV monitoring system only play the role of alarm and monitoring in the whole security system, and can not achieve the purpose of security prevention. Generally speaking, a complete safety system should include: technical system, physical defense and personnel defense, that is, "civil air defense, technical defense and physical defense". Practice has proved that only by organically combining these three factors can we give full play to the role of the technical system. Therefore, units with advanced technology systems such as intrusion alarm and TV monitoring must not ignore the role of civil air defense and physical defense, and always keep in mind that human factors come first.

1. Civil air defense and technical defense

(1) There should be enough security forces to stop possible crimes, and cooperate with the public security departments to arrest criminal suspects in time to ensure the safety of the country and people's lives and property.

(2) there should be a plan to arrest suspects and conduct drills.

(3) Insist on leading shift, strengthen team management and standby system on duty, and implement it.

(4) In order to ensure the safety of security personnel on duty, the central control room should be selected and constructed in strict accordance with the relevant standards of the security industry; For the central control room that fails to meet the requirements temporarily, other remedial measures should be taken to ensure the safety of the system center.

(5) Cooperate with the check-in personnel, regularly test the sensitivity of the detector, and handle the problems in time when found.

(6) The central control room should be equipped with self-defense weapons and fire-fighting equipment for the check-in personnel, and can send an emergency alarm to the outside world (security duty room or public security organ) at any time.

(7) During bad weather or technical system maintenance, site safety must be strengthened to prevent accidents.

(8) Establish the daily maintenance system of technical system and implement it to people.

(9) Make the field staff know the matters needing attention in the use of technical equipment, so as not to cause artificial false alarm.

(10) In case of alarm, we should actively cooperate with the public security organs to solve the case.

2. Check-in personnel code

(1) I love my job and have a good psychological quality.

(2) I have no criminal history.

(3) Seriously study the business, master the system operation procedures, start the machine on time, and don't shut it down without permission.

(4) Strictly abide by the confidentiality system, and it is forbidden to bring irrelevant personnel into the central control room without permission; It is not allowed to borrow videos, tapes, etc. For others.

(5) Go to work on time, stick to their posts, ensure that successors are not in place, and people in the class do not leave their posts to prevent them from leaving their posts.

(6) Make records on duty.

(7) Take good care of the instruments and equipment, and keep them clean and in good working condition. In case of any of the following circumstances, the instruments and equipment shall be reported in time:

① Abnormal fever ② Odor.

③ There is abnormal sound; ④ There is wire falling off.

⑤ Other abnormal working conditions.

(8) During system maintenance, actively cooperate with maintenance personnel.

(9) At any time and under any circumstances, the check-in personnel shall not leave the central control room without authorization.

(10) Don't panic in case of police, and actively assist security guards and public security personnel to arrest criminal suspects.

Second, the use of intrusion alarm system

1. Basic concept of intrusion alarm system

When criminals invade the security area and try to commit theft, the technical system that can inform the check-in personnel of the invasion signal in time is called intrusion alarm system. The intrusion alarm system consists of detectors (including emergency alarm devices such as panic button, feet, paddles and pedals), channels and alarm controllers.

Detector is commonly known as probe, and its function is to convert intrusion detection signals into electrical signals that can be transmitted in the channel. Commonly used detectors include passive infrared detector, active infrared detector, microwave-passive infrared dual-technology detector, glass breakage detector and so on.

Channel, that is, the medium for transmitting signals. Its function is to transmit the electrical signal with alarm information sent by the detector to the alarm controller in time and accurately. Channels are divided into wired channels and wireless channels. Wired channels include twisted pair, telephone line, coaxial cable, optical cable, etc. A wireless channel is a radio wave that propagates in free space. The National Radio Regulatory Commission has assigned three groups of radio frequencies to the alarm system:

The first group is 36.050mh2 36.075mhz 36.125mhz.

The second group 36.350MH2 36.375MH2 36.425MH2

Phase III 36.650 MHz 36.675 MHz 36.725 MHz 2

It is also stipulated that the emission power should be within one watt, and the maximum approved power should not exceed 10 watt.

From 1 999,65438+10,1,two micro-power frequencies, namely, 3 15.0 ~ 3 16.0 MHz, 3430.0 ~ 432.0 MHz, are used.

Alarm controller. The device that can receive the electrical signal with alarm information transmitted by the channel, send out an acousto-optic alarm after signal processing, and display the alarm position is called an alarm controller.