BOE's three positive 5s management system is a set of management system based on 5S principle. Among them, 5S stands for "inspection, sorting, cleaning, standardization and self-discipline", which requires enterprises to establish an orderly, neat, clean, safe and orderly working environment to make management more effective. 5S management system is the earliest enterprise management concept put forward in Japan, which advocates good working habits and good working environment, makes employees experience better and improves work efficiency. Dry powder fire extinguishers, gas fire extinguishers and fire extinguishers can be used in electrical fires.