第一種學(xué)說：看GB1498-79，電機(jī)、低壓電器外殼防護(hù)等級(jí) 什么是IP（防護(hù)等級(jí)）？ IP（International Protection）防護(hù)等級(jí)系統(tǒng)是由IEC（International Electro Technical Commission）所起草。將燈具依其防塵、防止外物侵入、防水、防濕氣之特性加以分級(jí)。這里所指的外物包含工具、人的手指等均不可接觸到燈具內(nèi)之帶電部分，以免觸電。 IP
超聲波流量計(jì)生產(chǎn)公司 0411-87305712
超聲波流量計(jì)實(shí)時(shí)信息，超聲波流量計(jì)資料下載，超聲波流量計(jì)價(jià)格，相信大連索尼卡—流量測量問題輕松解決。
2009年12月8日
什么是防護(hù)等級(jí)IP65,IP55
Tags: 防護(hù)等級(jí)IP65
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