How is the number of surveillance cameras in a device determined (in industrial video surveillance systems)?
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1. Interim Provisions on the Supervision and Management of Major Hazardous Chemical Sources (issued by Order No. 40 of the State Administration of Work Safety on August 5, 2011, and amended by Order No. 79 of the State Administration of Work Safety on May 27, 2015) (IV) Video surveillance systems shall be installed in the sites or facilities where **substances are stored in major hazardous sources； 2.AQ 3036-2010 **Specifications for the Installation of Safety Monitoring Equipment at Chemical Hazardous Source Tank Areas 10.1 General Principles 10.1.1 Tank areas should be equipped with audio and video monitoring and alarm systems to detect sudden hazardous situations or early signs of fires. 10.1.2 The number and location of cameras should be determined based on the actual conditions of the tank farm site; it is necessary to ensure comprehensive coverage while also giving special attention to areas with a higher level of risk. 10.1.3 The camera video surveillance alarm system shall be capable of enabling coordination with alarms for the monitoring of hazardous parameters.
All of the above standards require the use of industrial cameras for monitoring, but they do not specify to what extent this monitoring should take place – whether it needs to be comprehensive with no blind spots, or whether it is sufficient to have only a symbolic form of monitoring. How do people actually handle this in practice?
Key areas and hazardous areas require close monitoring. (Examples: compressors, high-risk pumps, high-temperature and high-pressure heat exchangers, reactors, pump areas in pipe galleries, etc.)
Our facility’s pump areas, heat exchangers, compressors, towers, and various equipment have been virtually fully inspected; no specific standards were missed in the inspection process
Key areas require close monitoring; critical areas too need to be monitored, and it’s best to have comprehensive monitoring in place
The pump section, heat exchangers, compressors, towers, and other equipment of the unit are virtually fully covered
Our tank areas, pump houses, and other sites are equipped with high-mounted cameras (with a coverage range of 20m) mounted on searchlights, as well as smaller ones placed in the corners. The camera rotates to ensure no blind spots in coverage.
I’m not sure if the original poster has resolved this issue; we have encountered the same problem. Major hazard sources and tank areas are to be set up in accordance with these requirements, but the standards do not provide enough clarity regarding the number and location of such elements. Is it still necessary to install it if it is not a major hazard source? Are there any standards to follow? I hope someone who is familiar with the design can explain it to everyone.