This specification applies to the closed-circuit television system for general wired transmission of television signals in new construction, expansion and reconstruction projects of industrial enterprises. GBJ 115-1987 Industrial Television System Engineering Design Specification GBJ115-1987 Standard download decompression password: www.bzxz.net

Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Industrial Television System Engineering Design Specification
GBJ115—87
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Industrial Television System Engineering Design Specification
GBJ115—87
Editor Department: Ministry of Metallurgical Industry of the People's Republic of China Approval Department: Chinese State Planning Commission of the People's Republic of China Effective Date: August 1, 1988
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Notice on the Release of "Industrial Television System Engineering Design Specification"
Ji Biao [1987] No. 2414
According to the notification requirements of the State Planning Commission's Ji Zong [1986] No. 250, the "Industrial Television System Engineering Design Specification" edited by the Ministry of Metallurgical Industry has been reviewed by relevant departments. The "Industrial Television System Engineering Design Specification" GBJ115-87 is now approved as a national standard and will be implemented from August 1, 1988. This specification is managed by the Ministry of Metallurgical Industry. Its specific interpretation and other work are the responsibility of the Beijing Iron and Steel Design and Research Institute of the Ministry of Metallurgical Industry. The publication and distribution is the responsibility of China Planning Press. State Planning Commission
December 21, 1987
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Preparation Instructions
This specification is compiled by our department in accordance with the requirements of Document No. 250 of the State Planning Commission [1986], and is specifically compiled by our Beijing Iron and Steel Design and Research Institute and the Beijing Design Institute of the Ministry of Posts and Telecommunications.
In the process of compiling this specification, the compilation team conducted a relatively extensive investigation and research and on-site experiments and tests, summarized the domestic experience in engineering design, installation and use of industrial television systems, and widely solicited opinions from relevant units across the country. Finally, our department, together with the Ministry of Posts and Telecommunications and other relevant departments, reviewed and finalized the draft. This specification is divided into seven chapters. The main contents include general principles, system design, equipment selection, transmission and line laying, equipment layout, lighting, power supply and grounding, etc. During the implementation of this specification, if any modification or supplement is found, please send your opinions and relevant materials to the Beijing Iron and Steel Design and Research Institute of the Ministry of Metallurgical Industry (No. 4 Baiguang Road, Beijing) for reference in future revisions. Ministry of Metallurgical Industry
November 30, 1987
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6bzxZ.net
Chapter 7
Appendix 1
Appendix 2
System Design·| |tt||Equipment selection·
Transmission and line laying·
Equipment layout·
Power supply and grounding
Term explanation
Terms used in this specification
Additional explanation
Engineering construction standard full text information system
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Engineering construction standard full text information system
Chapter 1 General Provisions
Article 1.0.1 This specification is specially formulated to enable the engineering design of industrial television systems to better implement the relevant policies and guidelines of the Party and the State, to achieve advanced technology, economic rationality, safety and applicability, and to ensure quality.
Article 1.0.2 This specification applies to closed-circuit television systems for general wired transmission of television signals in new, expanded and renovated projects of industrial enterprises. For expansion and renovation projects, it should proceed from reality and pay attention to making full use of existing facilities.
Article 1.0.3 The scope of setting up industrial television systems should comply with the following provisions: 1. During the production process, all production parts with harsh conditions (high temperature, high dust, high noise, strong radioactive radiation, etc.) that are not easy for operators to directly observe but must be operated while observing in order to ensure product quality, improve production efficiency, and ensure equipment and personal safety should be equipped with production process monitoring television systems; 2. According to the needs of production management, enterprise (workshop) production scheduling monitoring television systems can be set up;
3. When the production process requires the long-distance transmission of chemical composition analysis results or other data charts, an image information transmission television system can be set up; 4. According to the actual needs of the production process, industrial television systems for special occasions should be set up.
Article 1.0.4 In addition to implementing this specification, the engineering design of industrial television systems should also comply with the current national "Industrial Enterprise Communication Design Specifications", "Industrial Enterprise Communication Grounding Design Specifications", "Explosion and Fire Hazardous Places Power Installation Design Specifications" and other relevant regulations.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter 2 System Design
Article 2.0.1 The design of the industrial television system shall meet the needs of production process operation and management, and meet the requirements of reliable operation, simple operation, convenient maintenance and adaptability to engineering environmental conditions.
Article 2.0.2 The signal format of the industrial television system should comply with the following provisions: 1. Black and white industrial television signals can use the D format, and the scanning method can be random interlaced or 2:1 interlaced scanning;
2. Color industrial television signals can use the PAL-D format. Article 2.0.3 Industrial television should use a black and white television system; when there is a color requirement for the monitored target, a color television system can be used. Article 2.0.4 The image quality indicators of industrial television systems shall comply with the following provisions:
The horizontal definition of black-and-white industrial television systems used for image information transmission shall not be less than 450 TV lines;
2. The horizontal definition of black-and-white industrial television systems used for general production process monitoring shall not be less than 350 TV lines;
3. The horizontal definition of black-and-white industrial television systems used under harsh environmental conditions shall not be less than 300 TV lines;
4. The horizontal definition of color industrial television shall not be less than 250 TV lines. Article 2.0.5 The industrial television system shall be able to work continuously. Article 2.0.6 The industrial television system shall be composed of camera, transmission, display and control parts.
When selecting system equipment, the performance and technical requirements of each supporting equipment shall be coordinated and consistent. Article 2.0.7 Industrial television systems that centrally monitor multiple dispersed targets shall be equipped with video switching devices.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Article 2.0.8 Industrial television systems that need to record the image or data chart video signal of the monitored target should be equipped with a tape recording device. Article 2.0.9 Industrial television systems that need to monitor the on-site sound while monitoring the target should be equipped with an accompanying sound system.
Article 2.0.10 Industrial television systems with multiple cameras and a single monitor equipped with a video switching device should adopt a master-slave synchronization method or an external synchronization method if there is a synchronization requirement.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter 3 Equipment Selection
Article 3.0.1 The selection of black and white cameras should comply with the following provisions: 1. Selection of commonly used camera tubes: When the illumination of the object is above 50Lx, antimony sulfide tubes can be used; when it is above 10Lx, cadmium zinc telluride tubes and solid-state imaging devices can be used; when it is above 1Lx, silicon target tubes can be used.
2. Scanning format: When the vertical clarity of the center of the image is required to be no more than 300 TV lines, a camera with a random interlaced scanning format can be used; when it is required to be greater than 300 TV lines, a camera with a 2:1 interlaced scanning format should be used. 3. For cameras that capture fixed targets, fixed-focus lenses can be used: In camera situations where there is a requirement for changing viewing angles, zoom lenses can be used. The choice of lens focal length should be determined based on the field of view and the distance from the lens to the monitored target.
The focal length should be calculated as follows:
Where F is the focal length (mm);
L is the object distance (mm);
A is the image field height (mm);
H is the field of view height (mm).
Fourth, cameras that monitor the brightness variation range of the target, with a high and low difference of more than 100 times or used day and night, should have an automatic target voltage adjustment circuit or an automatic aperture control device.
Color industrial television systems can use single-tube (single-chip) cameras.
Article 3.0.2
Article 3.0.3
When it is necessary to monitor changing scenes, the camera should be equipped with an electric remote control engineering construction standard full text information system
engineering construction standard full text information system
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Article 3.0.Article 4 The optimal distance between the monitoring personnel and the monitor screen can be determined as 4 to 7 times the height of the monitor screen.
Industrial televisions should use monitors with a picture tube of no less than 31cm (except those installed on the console). When one monitor cannot meet the requirements, multiple monitors can be set up.
Article 3.0.5 If the industrial television system of a single project has more than 5 cameras of the same model and specifications, one cold standby can be set up; if it has more than 10 monitors of the same specifications, one cold standby can be set up.
Article 3.0.6 According to the needs of the project, the console should reserve room for expansion, and should be equipped with spare circuit boards and vulnerable spare parts. Article 3.0.7 Cameras set in environments with temperatures above 1040℃ and dust content greater than 10mg/m3 should be equipped with air-cooled protective covers, water-cooled protective covers, air-cooled-water-cooled protective covers or dust-proof sealed protective covers according to environmental conditions. Air-cooled protective covers cooled by ordinary compressed air should be equipped with air purification devices. Article 3.0.8 Cameras installed in high-temperature areas where the ambient temperature is higher than 1080℃ should be equipped with over-temperature alarm devices. Cameras installed on the furnace wall or in the furnace to monitor heated objects should have special lenses with filters and white level limiting circuits. Cameras installed in low-temperature areas where the ambient temperature is lower than -10℃ should have insulation measures. Article 3.0.9 Industrial television systems installed in areas with explosion hazards must use explosion-proof cameras.
Article 3.0.10 Industrial television systems that observe the internal thermal images of objects should preferably use infrared television cameras with a working wavelength of 0.75~100um. Article 3.0.11 Underwater industrial television equipment that monitors underwater targets should have high-sensitivity camera tubes, short-focal-length wide-angle door lenses, sealed pressure-resistant protective sleeves, and water seepage alarm devices.
Article 3.0.12 Drilling industrial television equipment that observes the borehole wall should have a short-focal-length wide-angle lens, a tubular sealed housing, a ground controller, and a right-angle observation device. Article 3.0.13 For surveillance television systems with high requirements for image quality indicators and large camera capture areas, low-light camera devices should be used. Article 3.0.14 For industrial television systems used in other special environments, television equipment with corresponding technical measures should be used.
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