Commonly determined by a blue label, dry powder extinguishers are sometimes called ABC extinguishers. These multi-intent extinguishers may be used on fire classes A, B and C, meaning they may be employed with combustible products, flammable gases and flammable liquids. A conventional fire alarm system works by using one or https://ez-bookmarking.com/story18530558/5-essential-elements-for-conventional-fire-system