Analysis of low - energy arc discharge of d . c . resistive intrinsically safe circuits 直流電阻性本質(zhì)安全電路低能電弧放電分析
I " electrical apparatus for explosive atmospheres - intrinsically safe circuits and electrical apparatus " i 本質(zhì)安全型電路和電氣設(shè)備
Specification for electrical measuring instruments for use on intrinsically safe circuits in coal mines 煤礦安全電路用電氣測(cè)量?jī)x器規(guī)范
The equipment placed in the hazardous area contains only intrinsically safe circuits . a circuit is intrinsically safe if no sparks of thermal effects occur under establishedtest conditions ( including the normal operating and certain fault conditions ) , which could lead to the ignition of a given explosive atmosphere 設(shè)備內(nèi)部的電路在規(guī)定的條件下,正常工作或規(guī)定的故障狀態(tài)下產(chǎn)生的電火花和熱效應(yīng)均不能點(diǎn)燃爆炸性混合物。