久久久成人动漫_91欧美视频在线_另类国产ts人妖高潮系列视频_国产精品成人一区_一区二区精品在线_99视频在线

Scan code consultation:
0755-2102 2109
Service
Current location: Home Service Ex design
Issues to be noted in the design of explosion-proof electrical products

SINO Testing Services

| 2020-06-22|Return

1. Based on the characteristics, structure, and usage location of explosion-proof electrical products, combined with basic knowledge of explosion-proof and the provisions of explosion-proof standards, comprehensively analyze the explosion-proof type of product design. What kind of explosion-proof type is more suitable and economical. For example, explosion-proof flashlights belong to mobile electrical equipment. According to the location of Zone 0, they can only be made into intrinsic safety type IA, and the product needs to limit its energy, resulting in lower illumination. If used in Zone 1 locations, it can be made into explosion-proof type D or intrinsic safety type IA or IB. When high illumination is required, it is easy to achieve the goal by making it explosion-proof.


2. After determining the explosion-proof type, design the product structure according to the corresponding explosion-proof standards. If it is a flameproof type, it must comply with the relevant provisions of GB3836.1 and GB3836.2. Taking explosion-proof flashlights as an example: for those designed as explosion-proof, the material of the casing should be determined first. Plastic casings should comply with the provisions of Chapter 7 of GB3836.1, and casings containing light metals should comply with the provisions of Chapter 8 of GB3836.1. Should its structure be determined according to the provisions of GB3836.2 to choose a planar joint surface? Stop joint surface? Threaded joint surface or other joint surface? The lamp head and tail of explosion-proof flashlights are prone to use threaded joint surfaces, and the glass should be made of tempered glass that can withstand impacts of 4J energy.

Service Hotline: 18924609560 (same WeChat account)


Related Recommendations
Contact us
0755-2102 2109
Add: 13F, Building C, Kangjia Guangming Technology Center, No. 288 Xingxin Road, Guangming District, Shenzhen
Follow us
Copyright: Shenzhen Zhongnuo Testing Technology Co., Ltd. 粵ICP備18004888號
Service Hotline
18924609560
點擊這里給我發消息 1354407946
點擊這里給我發消息 1354407946
主站蜘蛛池模板: 天天草天天干天天 | 中文字幕在线不卡视频 | 免费激情视频网站 | 中文字幕在线不卡视频 | www国产成人免费观看视频 | 午夜a狂野欧美一区二区 | 12av毛片 | 欧美激情在线播放 | 亚洲一区播放 | 暴力强行进如hdxxx | 欧美一级黄色免费看 | 免费看一级毛片欧美 | 国产1区在线 | 一区二区三区在线观看免费视频 | 精品国产91久久久 | 日韩欧美电影一区二区三区 | 国产免费网站视频 | 在线中文日韩 | 国产成人强伦免费视频网站 | 91专区在线观看 | 国产污污视频 | 欧美一级黑人 | 一区在线视频 | 日韩精品中文字幕在线观看 | 91九色视频观看 | 久久美女免费视频 | 成人免费毛片一 | 国产乱乱视频 | 国产999视频在线观看 | 亚洲精品aa | 欧产日产国产精品v | 黄网在线| 久久久国产视频 | 精品国产一区二区三区四区阿崩 | 欧美日本亚洲视频 | 一级做a爱视频 | 九九热九九爱 | 91性高湖久久久久久久久网站 | 国产成人综合在线视频 | 中国杭州少妇xxxx做受 | 成人综合在线观看 |