In the early morning of the 24th, a charging electric car in a residential area in Fuzhou suddenly caught fire and spontaneously ignited, causing the fire to spread, causing the other seven electric vehicles to be damaged to varying degrees. "At the time there were hundreds of electric vehicles. Once the fire spread, the consequences were unimaginable." It is understood that the main reason for the spontaneous combustion of electric vehicles is the aging of the charger or the short circuit of the charging line. In recent years, the self-ignition of electric vehicles has emerged in an endless stream. It is urgent to understand the problem of self-ignition of electric vehicles and eliminate the hidden dangers of electric vehicles. So how to prevent self-ignition of electric vehicles? 1. The charger should not be placed on the electric vehicle. The bumpy road surface will cause the charger's own voltage to rise, which may cause spontaneous combustion. 2. Place the charger on the ground during charging to facilitate timely heat dissipation. Do not charge for up to 12 hours, otherwise it may cause spontaneous combustion. 3. Do not use the electric vehicle continuously for a long time, otherwise it may cause spontaneous combustion. 4. Avoid driving in rainy or stagnant waters or washing the car with high-pressure water gun to prevent self-ignition caused by short circuit caused by short circuit. 5, most of the battery under the seat cushion, in the case of unclear line conditions, add a sunscreen pad on the seat cushion to prevent accidents such as spontaneous combustion. 6, electric vehicles should pay attention to daily maintenance, while the riders must also develop good cycling habits, which will greatly reduce the chance of self-ignition of electric vehicles. How to deal with it? Once you are self-igniting, don't take your own battery. When the battery is burning, it is possible to explode. Therefore, do not use the battery yourself. Instead, use clothing or a raincoat to pat the fire. In the early stage of the fire, it can be extinguished in time.
Across the pond, you will find the Deutsches Institute fur Normung (DIN) flange specification, consisting of a variety of European styles which have been unified into one code for the purpose of commonality. Designation as a DIN Flange by the German Institute of Standardization assures the user of design quality the way an ASME flange would here in America. Although much less common than ANSI/ASME steel flanges in the United States, many of our international customers request flanges to these specifications for a variety of applications such as imported steel vessels, cargo ships, and other infrastructure which may consist of metric pipes/valves and European designed equipment.
The subset flanges under the DIN standard consist of the same style of flanges in the United States, including the most commonly used slip on flanges, weld neck, flanges, and blind flanges. Adapter flanges can be custom made to end user requirements for the mating of American flanges to international ones, however we find it is a much more common and easy solution to provide DIN flanges to mate to existing equipment.
The most common metric type flanges fall under the following categories:
DIN 2501 through 2503 for flat ring flanges
DIN 2512 through 2519 for alternate face flanges
DIN 2627 through 2633 for weld neck flanges
DIN 2641 through 2642 for lap joint flanges
DIN 2565 through 2569 for threaded/companion flanges
DIN 2527 for blind flanges
Din Wn Flange,Din Pn Wn Flange,Welding Neck Flange,Din Welding Neck Flange Hebei Welkin Pipe Fitting Manufacturing Co., Ltd , https://www.welkinpipeline.com
The self-ignition of electric vehicles is endless