Identification of the causes of fires in the workshop

Before, it was common for various materials to be stacked together in many workshops, such as daily necessities, textile and chemical fiber products, rubber products, plastic products, etc., most of which were mixed in one workshop. The piled materials are large in quantity, density, and combustible, and the fire risk is high.
Some workshops renovated from old buildings have low fire resistance levels, large building spaces, and a lot of storage materials. When fires occur, they burn violently and spread quickly. In addition, the original buildings were not designed for production and storage purposes. In order to facilitate the storage of goods, the renters often modify and build them without authorization, further reducing the fire resistance level of the workshops. Especially for some simple workshops with randomly built steel structure roof trusses, when a fire occurs, the strength of the steel structure will be reduced due to the fire, causing the factory building to collapse.
In the case of workshop fire cause identification, Zhongke Testing can provide workshop fire cause identification services.

1. Indiscriminate use of open flames, including throwing burning cigarette butts and setting off fireworks and firecrackers, thereby igniting combustible materials.
2. Indiscriminate use of electrical appliances can overload electrical circuits and cause enameled rubber to soften and burn.
3. Improper storage of chemical agents may cause chemical reactions to generate heat, or volatilize and reach critical concentrations, causing explosions when exposed to open flames.
4. When performing electric welding operations, improper protection may cause sparks to splash and ignite combustible materials. 5. Chemical and physical reasons, such as spontaneous combustion of combustibles, interaction of dangerous goods, friction and collision. 6. Technical management reasons, such as building design that does not meet fire protection requirements and lack of fire protection facilities.

GB 8176-2012 General rules for safe production in stamping workshops
GB/T 37393-2019 Digital workshop General technical requirements
GB/T 37413-2019 Digital workshop Terms and definitions
GB 15606-2008 General principles for production safety in woodworking (lumber) workshops
GB/T 41257-2022 Functional safety requirements for digital workshops
GB/T 41260-2022 Information security requirements for digital workshops
GB/T 35084-2018 Environmental protection guidelines for stamping workshops

A fire broke out in a workshop of an electromechanical factory. Since the accident occurred in the early morning, it was discovered relatively late and the fire spread. By the time the rescue was completed, significant damage had been caused. After preliminary calculation, the mechanical and electrical plant lost nearly 2 million yuan. In order to find out the cause of the fire accident, the insurance company and the mechanical and electrical plant jointly entrusted an appraisal agency to identify the cause of the fire.
identification and analysis results: The
identification and analysis expert group discussed relevant information and on-site inspections of the workshop involved and conducted comprehensive quality and technical analysis, and made the following suggestions and conclusions: The cause of the
fire was related to the lithium batteries stored in the warehouse. The battery pack had traces of spontaneous combustion, which was inferred to be caused by overcharging. It designed tests to verify, and finally determined that this batch of batteries did have the possibility of spontaneous combustion when overcharged.