適用范圍Application 20區(qū)、21區(qū)、22區(qū)危場所。 含有爆炸性或可燃性粉塵環(huán)境. Can be used in Zone 20 zone 21 and Zone 22 dangerous places. Can be used in explosive or flammable dust atmosphere. 型號(hào)含義Model implication 產(chǎn)品特點(diǎn) Features 鑄鋁合金外殼，表面噴塑。 透明標(biāo)志牌可由用戶自由選配 電子發(fā)光板式，采用特有的壓電 效應(yīng)，在正常工作時(shí)幾乎不耗電， 應(yīng)急時(shí)間在2小時(shí)以上，且免維護(hù)， 降低了運(yùn)行費(fèi)用。 內(nèi)裝免維護(hù)鎳鎘電池組，在正常供 電下自動(dòng)充電，事故或停電時(shí)應(yīng) 急燈自動(dòng)點(diǎn)亮。 鋼管或電纜布線均可。 符合GB12476，IEC62141要求。 Diecasted aluminiumalloy shell with plastic-sprayed surface. The transparent mark-plate can be chosen and matched to user’s requirement. The electronic uminescence boardtype,uses special piezoelectricityeffect. under the normal,it hardly consume the fime it can last several hours in the emergency meanwhile,need no maintenaince and reduce the operation cost use. Under the normal power-supplying condi tionm the inner nickel-cadmium can recharge automatically,so that,the emergency lamp will tum on automatically when the power lose because of accident or power failure. Suitable for both steelpipe and cable wiring. Suitable for GB12476,IEC61241 standard request.