{"id":36045,"date":"2022-11-26T10:33:42","date_gmt":"2022-11-26T02:33:42","guid":{"rendered":"https:\/\/www.upowertek.com\/eristetty-himmennysliitanta\/"},"modified":"2022-12-10T13:30:07","modified_gmt":"2022-12-10T05:30:07","slug":"eristetty-himmennysliitanta","status":"publish","type":"post","link":"https:\/\/www.upowertek.com\/fi\/eristetty-himmennysliitanta\/","title":{"rendered":"Eristetty himmennysliit\u00e4nt\u00e4"},"content":{"rendered":"\n

On joitain avainsanoja, jotka on melko helppo sekoittaa yhteen LED-valaistusteollisuudessa, kuten PWM-himmennyssignaali ja PWM-LED-virta, luokka 2 ja luokka II, eristetty virtal\u00e4hde ja eristetty himmennys jne. T\u00e4m\u00e4 artikkeli keskittyy vain eristettyyn himmennysliittym\u00e4\u00e4n.<\/p>\n\n

Eristetty himmennys vs. eristetty virtal\u00e4hde<\/h2>\n\n

Eristetty himmennys tarkoittaa, ett\u00e4 himmennysliit\u00e4nt\u00e4 on eristetty sek\u00e4 tuloon ett\u00e4 l\u00e4ht\u00f6\u00f6n. Joskus himmennyssignaali on matalaj\u00e4nnite ja turvallinen 0-10 V tai PWM tai digitaalinen, jonka huippuj\u00e4nnite on alle 20 V, mutta l\u00e4ht\u00f6j\u00e4nnite on korkeaj\u00e4nnite, joka ei ole turvallinen. Mutta joskus himmennyssignaali ei ole turvallinen, koska himmentimeen saa virtaa vaihtovirtaj\u00e4nnite, mutta sit\u00e4 ei ole eristetty AC-verkkoj\u00e4nnitteest\u00e4, joten virransy\u00f6t\u00f6n kannalta, jos himmennysliit\u00e4nt\u00e4\u00e4 ei ole eristetty l\u00e4hd\u00f6st\u00e4, koko LED-valaisin voi olla vaarallinen. T\u00e4m\u00e4 on LED-ajureiden eristetyn himmennysliittym\u00e4n k\u00e4ytt\u00f6\u00f6noton tausta.<\/p>\n\n

\"eristetty<\/figure>\n\n
<\/div>\n\n

Normaalisti yleistuloisen LED-ohjaimen himmennysliit\u00e4nn\u00e4n eristysj\u00e4nnite vaaditaan alla olevan taulukon mukaisesti.<\/p>\n\n

Yksikk\u00f6: Vac<\/th>Sy\u00f6te<\/th>L\u00e4ht\u00f6<\/th>Himmennys<\/th>Asia<\/th><\/tr><\/thead>
\n Sy\u00f6te<\/strong>\n <\/td>–<\/td>3750<\/td>3750<\/td>1554<\/td><\/tr>
\n L\u00e4ht\u00f6<\/strong>\n <\/td>3750<\/td>–<\/td>1554<\/td>1554<\/td><\/tr>
\n Himmennys<\/strong>\n <\/td>3750<\/td>1554<\/td>–<\/td>1554<\/td><\/tr>
\n Asia<\/strong>\n <\/td>1554<\/td>1554<\/td>1554<\/td>–<\/td><\/tr><\/tbody><\/table><\/figure>\n\n

Eristetty himmennys vs. erist\u00e4m\u00e4t\u00f6n himmennys<\/h2>\n\n

Ennen himmennysliit\u00e4nn\u00e4n erist\u00e4mist\u00e4 koskevia pakollisia standardeja kaikki LED-ohjaimen himmennysliit\u00e4nn\u00e4t ovat erist\u00e4m\u00e4tt\u00f6mi\u00e4 ja jakavat saman s\u00e4hk\u00f6isen referenssin LED-toisiol\u00e4hd\u00f6n kanssa.<\/p>\n\n

Yksikk\u00f6: Vac<\/th>Sy\u00f6te<\/th>L\u00e4ht\u00f6<\/th>Himmennys<\/th>Asia<\/th><\/tr><\/thead>
\n Sy\u00f6te<\/strong>\n <\/td>–<\/td>3750<\/td>3750<\/td>1554<\/td><\/tr>
\n L\u00e4ht\u00f6<\/strong>\n <\/td>3750<\/td>–<\/td>\n \n 0<\/mark>\n <\/strong>\n <\/td>1554<\/td><\/tr>
\n Himmennys<\/strong>\n <\/td>3750<\/td>\n \n 0<\/mark>\n <\/strong>\n <\/td>–<\/td>1554<\/td><\/tr>
\n Asia<\/strong>\n <\/td>1554<\/td>1554<\/td>1554<\/td>–<\/td><\/tr><\/tbody><\/table><\/figure>\n\n

Erilliset himmennykseen liittyv\u00e4t standardit<\/h2>\n\n

UL8750 Supplement SF<\/h3>\n\n

Supplement SF julkaistiin osana ANSI\/UL 8750 -standardia hein\u00e4kuussa 2017. Syyskuussa 2017 UL:n sertifiointiorganisaatio perusti toimialan tiedostotarkistuksen t\u00e4m\u00e4n t\u00e4ydennyksen hyv\u00e4ksymiseksi, ja se tulee voimaan 2.11.2020. <\/p>\n\n

\"eristetty<\/figure>\n\n
<\/div>\n\n

Luku 15.4, IEC 61347-1,2015<\/h3>\n\n

IEC-standardit ilmoittivat vaatimuksen eristetyst\u00e4 himmennyksest\u00e4 aikaisemmin kuin UL, kuten alla.<\/p>\n\n

\"eristetty<\/figure>\n\n
<\/div>\n\n

Yhteenveto<\/h2>\n\n

Eristetty himmennys otetaan yh\u00e4 enemm\u00e4n k\u00e4ytt\u00f6\u00f6n yleisvalaistuksessa, joten suunnittelijoiden tulee ymm\u00e4rt\u00e4\u00e4 erot eristetyn himmennyksen ja virtal\u00e4hteen v\u00e4lill\u00e4 voidakseen valita oikeat tuotteet valaisimiin. Jos sinulla on kysytt\u00e4v\u00e4\u00e4, ota meihin yhteytt\u00e4 osoitteessa sales@upowertek.com.<\/p>\n","protected":false},"excerpt":{"rendered":"

On joitain avainsanoja, jotka on melko helppo sekoittaa yhteen LED-valaistusteollisuudessa, kuten PWM-himmennyssignaali ja PWM-LED-virta, luokka 2 ja luokka II, eristetty virtal\u00e4hde ja eristetty himmennys jne. T\u00e4m\u00e4 artikkeli keskittyy vain eristettyyn himmennysliittym\u00e4\u00e4n. Eristetty himmennys vs. eristetty virtal\u00e4hde Eristetty himmennys tarkoittaa, ett\u00e4 himmennysliit\u00e4nt\u00e4 on eristetty sek\u00e4 tuloon ett\u00e4 l\u00e4ht\u00f6\u00f6n. Joskus himmennyssignaali on matalaj\u00e4nnite ja turvallinen 0-10 V […]<\/p>\n","protected":false},"author":6,"featured_media":36068,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"molemmat","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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