本帖最后由 angus_tan 于 2013-8-5 09:40 編輯
回復(fù) 5# chenboyou
按要求做一個(gè)點(diǎn)檢裝置, 一端PASS 一端FAIL, 具體要求按照UL的標(biāo)準(zhǔn)(再說(shuō)明一下:Sensitivity Requirements - At least once each year the sensitivity of the dielectric equipment is to be checked. The sensitivity of the equipment is to be such that when adjusted to produce the required test voltage and with a 120,000 ohm resistor across the test terminals, the equipment indicates a "breakdown" (a nonconforming performance indication by the tester) within 0.5 seconds. The resistor used shall be provided by the manufacturer and shall have a resistance found to be equal to or greater than 120,000 ohm when measured using a calibrated ohmmeter traceable to the National Institute of Standards and Technology (NIST). If the equipment does not meet this sensitivity test, it shall be readjusted and provision made to maintain the proper calibration.
靈敏度的要求-至少每年一次的介電設(shè)備的靈敏度進(jìn)行檢查。該設(shè)備的靈敏度是這樣的,當(dāng)調(diào)整以產(chǎn)生所要求的試驗(yàn)電壓和一個(gè)120000歐姆的電阻在測(cè)試終端設(shè)備,表示“崩潰”(一個(gè)不合格的績(jī)效指標(biāo)的測(cè)試)在0.5秒。電阻器必須由制造商提供的,必須有一個(gè)電阻的發(fā)現(xiàn)是等于或大于120000歐姆歐姆表測(cè)量時(shí),使用校準(zhǔn)可溯源到國(guó)家標(biāo)準(zhǔn)與技術(shù)研究所(NIST)。如果設(shè)備不符合這種敏感性試驗(yàn),應(yīng)當(dāng)調(diào)整,保持適當(dāng)?shù)男?zhǔn)設(shè)置。 | )來(lái),其實(shí)很簡(jiǎn)單的,點(diǎn)檢裝置做出來(lái)后經(jīng)過(guò)校準(zhǔn).就符合要求了,謝謝! |