二類LED燈耐壓3750V檢測時,殼體與開關(guān)電源付邊常有飛弧問題,因為LED和鋁基板的分布較廣且很接近散熱鋁殼體,由于燈腔空間的限制鋁基板和過孔處又不可能離開鋁殼較遠(yuǎn)(6mm以上),不用Y電容吧EMC過不了,用了y電容呢給變壓器初次級和次級間形成高壓交流通路,使高壓交流電壓直接加到了次級和殼體間,次級和殼體間耐壓雖然夠但間距不夠會產(chǎn)生飛弧放電,以致不能通過安全檢測,在不改變鋁pcb與殼體間基本結(jié)構(gòu)的前提下,希望哪位前輩能有解決辦法和良策,敬請不吝賜教,不勝感激.
聯(lián)系yl@kol.cn
Mr.Wei
LED燈耐壓3750V檢測時,殼體與開關(guān)電源付邊飛弧問題良策交流
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@atx090
你做的是燈,是家電嗎,是人體能接觸的產(chǎn)品嗎?需要3750V的耐壓檢測,別誤入歧途,這不知是誰定的標(biāo)準(zhǔn).
做的是LED燈(二類的),是人體能接觸的產(chǎn)品,需要3750V的耐壓檢測,是澳洲的標(biāo)準(zhǔn)要求,標(biāo)準(zhǔn)IEC 60598-2-3 Ed. 3.0 - Bilingual 2002 - Lumin和IEC 61347-2-13 Ed. 1.0 - Bilingual 2006 - Lamp controlgear - Part 2-13- Particular requirements for d.c. or.pdf,但吃的不透,高頻變壓器付邊的線是三層加強(qiáng)絕緣的,高頻變壓器的次級如果允許接燈殼或通過一個安規(guī)電容接燈殼就好了,但不知道是否允許?
Subject: RE: HV failure of GL Apollo lamps (TR4688)
The attached is the description of tests (insulation and high voltage tests) extracted from standard IEC
61347-1 that applied to the Apollo lamps. The lamps passed clause 11 item b); item a) and c) are not
applicable. For HV test in clause 12, voltage 3750V (for reinforce insulation) was used.
- Voltage 3750V applied for 60s between the supply (Line + Neutral) and a foil wrapped around the
lamp face + heat sink
- Result: Breakdown at <1000V
If you have any further queries please do not hesitate to contact me.
Regards,
Ngoc Dinh
Subject: RE: HV failure of GL Apollo lamps (TR4688)
The attached is the description of tests (insulation and high voltage tests) extracted from standard IEC
61347-1 that applied to the Apollo lamps. The lamps passed clause 11 item b); item a) and c) are not
applicable. For HV test in clause 12, voltage 3750V (for reinforce insulation) was used.
- Voltage 3750V applied for 60s between the supply (Line + Neutral) and a foil wrapped around the
lamp face + heat sink
- Result: Breakdown at <1000V
If you have any further queries please do not hesitate to contact me.
Regards,
Ngoc Dinh
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@australia
做的是LED燈(二類的),是人體能接觸的產(chǎn)品,需要3750V的耐壓檢測,是澳洲的標(biāo)準(zhǔn)要求,標(biāo)準(zhǔn)IEC60598-2-3Ed.3.0-Bilingual2002- Lumin和IEC61347-2-13Ed.1.0-Bilingual2006- Lampcontrolgear-Part2-13-Particularrequirementsford.c.or.pdf,但吃的不透,高頻變壓器付邊的線是三層加強(qiáng)絕緣的,高頻變壓器的次級如果允許接燈殼或通過一個安規(guī)電容接燈殼就好了,但不知道是否允許?Subject:RE:HVfailureofGLApollolamps(TR4688)Theattachedisthedescriptionoftests(insulationandhighvoltagetests)extractedfromstandardIEC61347-1thatappliedtotheApollolamps.Thelampspassedclause11itemb);itema)andc)arenotapplicable.ForHVtestinclause12,voltage3750V(forreinforceinsulation)wasused.-Voltage3750Vappliedfor60sbetweenthesupply(Line+Neutral)andafoilwrappedaroundthelampface+heatsink-Result:Breakdownat
澳洲的標(biāo)準(zhǔn)要求???led路燈?臺燈?
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