二類LED燈耐壓3750V檢測時,殼體與開關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(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與殼體間基本結構的前提下,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.
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Mr.Wei
LED燈耐壓3750V檢測時,殼體與開關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,是人體能接觸的產品嗎?需要3750V的耐壓檢測,別誤入歧途,這不知是誰定的標準.
做的是LED燈(二類的),是人體能接觸的產品,需要3750V的耐壓檢測,是澳洲的標準要求,標準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),是人體能接觸的產品,需要3750V的耐壓檢測,是澳洲的標準要求,標準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
澳洲的標準要求???led路燈?臺燈?
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