Fire on Water Resources and Hydropower Engineering Design of electrical fire
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[Abstract] fire safety design of many policies, government departments strict guard, but the Water Resources and Hydropower Engineering design code for fire protection is not perfect, this article discusses the Water Code for fire protection engineering design problems in the implementation process is proposed electrical fire design of relevant recommendations.
[Key words] Water Resources and Hydropower Engineering Electrical Design Fire alarm evacuation instructions Telephone
Hydropower projects should follow the National Fire Protection Design infrastructure policies, investment in both the fire service facilities to meet the requirements of the relevant standards and regulations, but also with our current financial resources to adapt implementation of the "prevention, anti-consumer combination of "fire-fighting approach. Most Hydropower Project in remote areas far from the city, project their own risk of fire occurrence and relatively low risk, but the fire caused property damage may be greater. To this end, the fire should be designed in accordance with the "self-defense self-help oriented, external assistance subsidiary" principle, for engineering the fire objects from fire prevention, monitoring, alarm, control, fire and smoke, and several other aspects of life-saving design take positive measures to secure the occurrence of fire prevention in case of fire, the fire is to restrict the scope, as soon as the fight against, to reduce casualties and property losses. Water Resources and Hydropower Engineering Design
fire the main follow the "Water fire protection engineering design" (SDJ278-90) (hereinafter "Standards"), feel that in the course of a number of specific issues to be discussed, this paper electrical fire make recommendations related to design, and peers.
1 "norms" lack of specificity Water Resources and Hydropower Engineering Design
fire policy is strong, government departments strict guard, but relatively speaking, the design specifications imperfect, the existing "standard" only a very small space on the request of the fire electrical design, which included 3 section 9, is too general, lack of specificity in the Water Resources and Hydropower Engineering, construction, installation and acceptance of work, lack of guidance. As circumstances vary Hydropower Project, a specification can not contain all the requirements, so in practical engineering design of the fire needs to refer to other relevant norms, such as "architectural design code for fire protection," "building interior fire protection design," "automatic spray Water extinguishing systems and acceptance "," fire alarm design, "" water spray fire extinguishing systems, "" gas fire extinguishing system construction and acceptance "," Configuration design of building fire extinguisher "," typical of fire power equipment order, "" hydroelectric power plant heating, ventilation and air conditioning design, "so as to strive to achieve safe, reliable and practical.
2 "standard" individual articles to be open to question
"Specifications" section 11.3.2 states: automatic fire alarm system, electrical connection, shielded cable should be used. Description of its provisions be interpreted as: "fire alarm electrical cable along with other electrical circuits set up, in order to avoid electromagnetic interference shielding protective measures should be taken." Section shows the extent inconsistent with the body of the request, likely to cause design or acceptance of this request to grasp the differences. On this request, our other fire safety regulations were not clearly stated. Automatic fire alarm system on the current design of the electrical control circuit used in shielded cable should be no problem, the main problem is the bus loop. Most products are intelligent, loop bus on
A computer network communication lines, communication lines required for the slightly different European and American standards, U.S. standards tend to unshielded twisted pair, shielded communication line with European standards tendency. Honeywell XLS1000 system requirements such as the United States: "unshielded twisted pair loop bus optional (AADC card), non-shielded non-twisted pair (DSDC card), through a closed metal tube wiring or cabling trunking protection methods." In practical engineering design, is the use of shielded or unshielded twisted pair cable should be determined according to product requirements.
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