{"id":2374,"date":"2025-05-16T08:17:10","date_gmt":"2025-05-16T06:17:10","guid":{"rendered":"https:\/\/malux.com\/?post_type=kunskapsbankinlagg&#038;p=2374"},"modified":"2025-05-27T16:18:19","modified_gmt":"2025-05-27T14:18:19","slug":"ventilation-klassning-av-riskomraden","status":"publish","type":"kunskapsbankinlagg","link":"https:\/\/www.malux.com\/sv\/kunskapsbankinlagg\/ventilation-klassning-av-riskomraden\/","title":{"rendered":"Ventilation &#8211; Klassning av riskomr\u00e5den"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-94b0ecf stk-block-background\" data-block-id=\"94b0ecf\"><style>.stk-94b0ecf {background-color:#f5f5f5 !important;padding-top:80px !important;padding-bottom:80px !important;margin-bottom:0px !important;}.stk-94b0ecf:before{background-color:#f5f5f5 !important;}@media screen and (max-width: 767px){.stk-94b0ecf {padding-top:60px !important;padding-bottom:60px !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-94b0ecf-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-194d026\" data-v=\"4\" data-block-id=\"194d026\"><style>.stk-194d026 {max-width:1024px !important;min-width:auto !important;margin-right:auto !important;margin-left:auto !important;}@media screen and (max-width: 1023px){.stk-194d026 {max-width:90% !important;min-width:auto !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-194d026-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-194d026-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-36f6796\" data-block-id=\"36f6796\"><style>.stk-36f6796 {margin-bottom:30px !important;}@media screen and (max-width: 1023px){.stk-36f6796 {margin-bottom:30px !important;}}<\/style><p class=\"stk-block-text__text\"><em><em><em> Fr\u00e5nluftning ska anordnas s\u00e5, att explosiv\u00e4mnesdamm och explosiv\u00e4mnes\u00e5ngor f\u00e5ngas upp utan att f\u00f6rst spridas i rummet (punktutsugning).<\/em><\/em><\/em><br><br>S\u00e5dana riskomr\u00e5den vilkas begr\u00e4nsning \u00e4r beroende av mekanisk ventilation b\u00f6r ha undertryck i f\u00f6rh\u00e5llande till omgivningen. Ventilationen utformas f\u00f6r en god genomluftning av riskomr\u00e5det.<br><br>Ibland finns behov av sektionering f\u00f6r att spridning av brand eller tryck mellan flera rum i samma byggnad ska f\u00f6rhindras. I dessa fall \u00e4r det n\u00f6dv\u00e4ndigt att sektionera \u00e4ven ventilationsanl\u00e4ggningen. Detta kan \u00e5stadkommas t ex genom brandspj\u00e4ll eller genom f\u00f6r varje rum helt separerad ventilationsanl\u00e4ggning.<br><br>Vid utformning av ventilationsanl\u00e4ggningar fordras att kunskap om och erfarenhet av de explosiv\u00e4mnen som ska hanteras ligger till grund f\u00f6r konstruktionsprincip, material o d. T ex ska fr\u00e5nluftsfl\u00e4kt f\u00f6r zon E1 ha motorn utanf\u00f6r luftstr\u00f6mmen och l\u00e4mpligen vara placerad utomhus.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-44ba255 stk-block-background\" data-block-id=\"44ba255\"><style>.stk-44ba255 {background-color:#ffdc2e !important;padding-top:80px !important;padding-bottom:80px !important;margin-bottom:0px !important;}.stk-44ba255:before{background-color:#ffdc2e !important;}@media screen and (max-width: 767px){.stk-44ba255 {padding-top:60px !important;padding-bottom:60px !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-44ba255-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-6ccf675\" data-v=\"4\" data-block-id=\"6ccf675\"><style>.stk-6ccf675 {max-width:1024px !important;min-width:auto !important;margin-right:auto !important;margin-left:auto !important;}@media screen and (max-width: 1023px){.stk-6ccf675 {max-width:90% !important;min-width:auto !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-6ccf675-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-6ccf675-inner-blocks\">\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-370915b\" data-block-id=\"370915b\"><style>.stk-370915b {margin-bottom:30px !important;}.stk-370915b-column{--stk-columns-spacing:0px !important;--stk-column-gap:60px !important;}@media screen and (max-width: 767px){.stk-370915b {margin-bottom:0px !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-370915b-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-abbd3e7\" data-v=\"4\" data-block-id=\"abbd3e7\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-abbd3e7-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-abbd3e7-inner-blocks\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-2d0f0b6\" id=\"tilluft\" data-block-id=\"2d0f0b6\"><h2 class=\"stk-block-heading__text\">Tilluft<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-171e36a\" data-block-id=\"171e36a\"><style>@media screen and (max-width: 1023px){.stk-171e36a {margin-bottom:30px !important;}}<\/style><p class=\"stk-block-text__text\">Tilluft kan tillf\u00f6ras med fl\u00e4kt eller som \u00f6verluft fr\u00e5n angr\u00e4nsande icke brand- eller explosionsfarligt rum. \u00c5terluft b\u00f6r undvikas.<br><br>Tilluften tillf\u00f6rs lokalen med don, s\u00e5 placerade att en god genomluftning av riskomr\u00e5det erh\u00e5lls.<br><br>Det \u00e4r v\u00e4sentligt att tilluftsdon placeras s\u00e5, att luften styrs via riskk\u00e4llan mot fr\u00e5nluftsdon.<br><br>Luftintag f\u00e5r inte placeras inom riskomr\u00e5de. Detta g\u00e4ller \u00e4ven riskomr\u00e5de orsakat av explosiv gasblandning eller av br\u00e4nnbart damm.&nbsp;<\/p><\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-ed6de63\" data-v=\"4\" data-block-id=\"ed6de63\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-ed6de63-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-ed6de63-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-1313abe\" data-block-id=\"1313abe\"><style>@media screen and (max-width: 1023px){.stk-1313abe {margin-bottom:30px !important;}}<\/style><p class=\"stk-block-text__text\">I L\u00e4mpligen placeras tilluftsaggregat med tillh\u00f6rande elutrustning utanf\u00f6r riskomr\u00e5det. Tilluftsanl\u00e4ggning som ventilerar ett riskomr\u00e5de och som \u00e4r placerad utanf\u00f6r detta anses inte som riskomr\u00e5de. De delar av tilluftsanl\u00e4ggningen som genomstr\u00f6mmas av luft, oberoende av att tilluftskanal kan vara placerad i riskomr\u00e5de, betraktas vanligen inte som riskomr\u00e5de.<br><br>F\u00f6r uppv\u00e4rmning av tilluft b\u00f6r vattenv\u00e4rmda v\u00e4rmebatterier anv\u00e4ndas. Betr\u00e4ffande anv\u00e4ndning av elv\u00e4rmefl\u00e4kt.<br><\/p><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-3340d8d stk-block-background\" data-block-id=\"3340d8d\"><style>.stk-3340d8d {background-color:#f5f5f5 !important;padding-top:80px !important;padding-bottom:80px !important;margin-bottom:0px !important;}.stk-3340d8d:before{background-color:#f5f5f5 !important;}@media screen and (max-width: 767px){.stk-3340d8d {padding-top:60px !important;padding-bottom:60px !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-3340d8d-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-1d4aa1e\" data-v=\"4\" data-block-id=\"1d4aa1e\"><style>.stk-1d4aa1e {max-width:1024px !important;min-width:auto !important;margin-right:auto !important;margin-left:auto !important;}@media screen and (max-width: 1023px){.stk-1d4aa1e {max-width:90% !important;min-width:auto !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-1d4aa1e-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-1d4aa1e-inner-blocks\">\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-6fd47e2\" data-block-id=\"6fd47e2\"><style>.stk-6fd47e2 {margin-bottom:30px !important;}.stk-6fd47e2-column{--stk-columns-spacing:0px !important;--stk-column-gap:60px !important;}@media screen and (max-width: 767px){.stk-6fd47e2 {margin-bottom:0px !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-6fd47e2-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-62531db\" data-v=\"4\" data-block-id=\"62531db\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-62531db-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-62531db-inner-blocks\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-137882c\" id=\"franluft\" data-block-id=\"137882c\"><h2 class=\"stk-block-heading__text\">Fr\u00e5nluft<\/h2><\/div>\n\n\n\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-a26f843\" data-block-id=\"a26f843\"><style>@media screen and (max-width: 1023px){.stk-a26f843 {margin-bottom:30px !important;}}<\/style><p class=\"stk-block-text__text\">FFr\u00e5nluften tas till st\u00f6rre delen n\u00e4ra riskk\u00e4llan.<br>Fr\u00e5nluftskanal fr\u00e5n zon E1 ska mynna p\u00e5 l\u00e4mplig plats och f\u00e5r inte kombineras med kanal f\u00f6r annan ventilation. D\u00e4r s\u00e5 \u00e4r m\u00f6jligt kompletteras fr\u00e5nluft med hel eller delvis inkapsling (k\u00e5pa) av enheter fr\u00e5n vilka damm sprids. Vid installation av ventilation ska m\u00f6jligheter till reng\u00f6ring beaktas.<br>Fr\u00e5nluftskanal klassas vanligen lika som det riskomr\u00e5de varifr\u00e5n luften sugs.<br>En l\u00e4mpligt utformad fr\u00e5nluftsanl\u00e4ggning med v\u00e4l fungerande punktventilation kan medf\u00f6ra att det omr\u00e5de som klassas kan minskas i utstr\u00e4ckning.<br><br><strong>Fr\u00e5nluftsdon<\/strong><br>Fr\u00e5nluftsdon (munstycke, k\u00e5pa o d) ska vara s\u00e5 utformade att luftf\u00f6roreningar f\u00e5ngas upp p\u00e5 b\u00e4sta m\u00f6jliga s\u00e4tt. Om en dammande verksamhet bedrivs inom ett begr\u00e4nsat omr\u00e5de, t ex dragsk\u00e5p, och lufthastigheten i \u00f6ppningarna \u00e4r 0,5 m\/s eller mer, kan man anse att zon E1 inte str\u00e4cker sig utanf\u00f6r detta omr\u00e5de.<br><strong>Ventilationskanaler<\/strong><br>Ventilationskanaler ska utformas s\u00e5, att de l\u00e4tt kan demonteras, inspekteras och reng\u00f6ras s\u00e5v\u00e4l inv\u00e4ndigt som utv\u00e4ndigt. Detta kan \u00e5stadkommas genom t ex snabbkopplingar och kanaler med sl\u00e4ta inv\u00e4ndiga ytor. De ska ocks\u00e5 utformas s\u00e5 att ansamling av explosiv\u00e4mne undviks.<\/p><\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-01778c3\" data-v=\"4\" data-block-id=\"01778c3\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-01778c3-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-01778c3-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-e7565aa\" data-block-id=\"e7565aa\"><style>@media screen and (max-width: 1023px){.stk-e7565aa {margin-bottom:30px !important;}}<\/style><p class=\"stk-block-text__text\">Vid klassningen ska h\u00e4nsyn tas till behov av s\u00e5dana drift\u00e5tg\u00e4rder som medf\u00f6r att slutna system \u00f6ppnas f\u00f6r t ex filterbyte, underh\u00e5llsarbete, t\u00f6mning eller reng\u00f6ring.\n\nVid klassning av riskomr\u00e5de b\u00f6r framtida f\u00f6r\u00e4ndringar beaktas som kan inneb\u00e4ra att riskomr\u00e5det f\u00e5r en str\u00e4ngare klassning.\n\nOm tillverkningsutrustningen \u00e4r s\u00e5 utf\u00f6rd att explosiv\u00e4mnet kan frig\u00f6ras, vilket \u00e4r fallet f\u00f6r de flesta mekaniska installationer (apparater), \u00e4r det n\u00f6dv\u00e4ndigt att best\u00e4mma typ av riskk\u00e4lla. Riskk\u00e4llan kan vara prim\u00e4r eller sekund\u00e4r. Detta best\u00e4ms utifr\u00e5n definitionen i artikeln Riskk\u00e4llor och riskomr\u00e5den.\n\nSom exempel p\u00e5 prim\u00e4r riskk\u00e4lla kan anges all \u00f6ppen hantering av explosiv\u00e4mne d\u00e4r damm, v\u00e4tska eller \u00e5nga kan avges i beaktansv\u00e4rd omfattning till omgivningen och d\u00e4rvid f\u00f6rorsaka skador, om \u00e4mnet ant\u00e4nds. En prim\u00e4r riskk\u00e4lla f\u00f6rorsakar som regel ett zon E1-omr\u00e5de.\n\nExempel p\u00e5 sekund\u00e4r riskk\u00e4lla \u00e4r st\u00e4llen d\u00e4r explosiv\u00e4mne under normal drift inte sprids till omgivningen men d\u00e4r p\u00e5 grund av driftst\u00f6rningar e d, som inte beh\u00f6ver vara av haveri- eller katastrofkarakt\u00e4r, utsl\u00e4pp kan ske. S\u00e5dan st\u00e4llen kan vara fl\u00e4nsf\u00f6rband, mekaniska packningar, icke t\u00e4ttslutande lock e d.\n\nSedan riskk\u00e4llan best\u00e4mts, \u00e4r det n\u00f6dv\u00e4ndigt att best\u00e4mma utsl\u00e4ppets storlek samt beakta andra faktorer som kan p\u00e5verka zonerna och deras utstr\u00e4ckning.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-dd5303e stk-block-background\" data-block-id=\"dd5303e\"><style>.stk-dd5303e {background-color:#f5f5f5 !important;padding-top:80px !important;padding-bottom:80px !important;margin-bottom:0px !important;}.stk-dd5303e:before{background-color:#f5f5f5 !important;}@media screen and (max-width: 767px){.stk-dd5303e {padding-top:60px !important;padding-bottom:60px !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-dd5303e-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-fb095a1\" data-v=\"4\" data-block-id=\"fb095a1\"><style>.stk-fb095a1 {max-width:1024px !important;min-width:auto !important;margin-right:auto !important;margin-left:auto !important;}@media screen and (max-width: 1023px){.stk-fb095a1 {max-width:90% !important;min-width:auto !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-fb095a1-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-fb095a1-inner-blocks\">\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-b55157f\" data-block-id=\"b55157f\"><style>.stk-b55157f {margin-bottom:30px !important;}.stk-b55157f-column{--stk-columns-spacing:0px !important;--stk-column-gap:60px !important;}@media screen and (max-width: 767px){.stk-b55157f {margin-bottom:0px !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-b55157f-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-daf32bb\" data-v=\"4\" data-block-id=\"daf32bb\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-daf32bb-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-daf32bb-inner-blocks\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-342a657\" id=\"atgarder-i-riskomrade\" data-block-id=\"342a657\"><h3 class=\"stk-block-heading__text\">\u00c5tg\u00e4rder i riskomr\u00e5de<\/h3><\/div>\n\n\n\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-994ff68\" data-block-id=\"994ff68\"><style>@media screen and (max-width: 1023px){.stk-994ff68 {margin-bottom:30px !important;}}<\/style><p class=\"stk-block-text__text\">Fr\u00e5nluften tas till st\u00f6rre delen n\u00e4ra riskk\u00e4llan.<br><br>Fr\u00e5nluftskanal fr\u00e5n zon E1 ska mynna p\u00e5 l\u00e4mplig plats och f\u00e5r inte kombineras med kanal f\u00f6r annan ventilation. D\u00e4r s\u00e5 \u00e4r m\u00f6jligt kompletteras fr\u00e5nluft med hel eller delvis inkapsling (k\u00e5pa) av enheter fr\u00e5n vilka damm sprids. Vid installation av ventilation ska m\u00f6jligheter till reng\u00f6ring beaktas.<br><br>Fr\u00e5nluftskanal klassas vanligen lika som det riskomr\u00e5de varifr\u00e5n luften sugs.<br><br>En l\u00e4mpligt utformad fr\u00e5nluftsanl\u00e4ggning med v\u00e4l fungerande punktventilation kan medf\u00f6ra att det omr\u00e5de som klassas kan minskas i utstr\u00e4ckning.<br><br><strong>Fr\u00e5nluftsdon<\/strong><br>Fr\u00e5nluftsdon (munstycke, k\u00e5pa o d) ska vara s\u00e5 utformade att luftf\u00f6roreningar f\u00e5ngas upp p\u00e5 b\u00e4sta m\u00f6jliga s\u00e4tt. Om en dammande verksamhet bedrivs inom ett begr\u00e4nsat omr\u00e5de, t ex dragsk\u00e5p, och lufthastigheten i \u00f6ppningarna \u00e4r 0,5 m\/s eller mer, kan man anse att zon E1 inte str\u00e4cker sig utanf\u00f6r detta omr\u00e5de.<br><br><strong>Ventilationskanaler<\/strong><br>Ventilationskanaler ska utformas s\u00e5, att de l\u00e4tt kan demonteras, inspekteras och reng\u00f6ras s\u00e5v\u00e4l inv\u00e4ndigt som utv\u00e4ndigt. Detta kan \u00e5stadkommas genom t ex snabbkopplingar och kanaler med sl\u00e4ta inv\u00e4ndiga ytor. De ska ocks\u00e5 utformas s\u00e5 att ansamling av explosiv\u00e4mne undviks.<\/p><\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-c9b1d64\" data-v=\"4\" data-block-id=\"c9b1d64\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-c9b1d64-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-c9b1d64-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-260632f\" data-block-id=\"260632f\"><style>@media screen and (max-width: 1023px){.stk-260632f {margin-bottom:30px !important;}}<\/style><p class=\"stk-block-text__text\">Kanalerna ska g\u00f6ras s\u00e5 korta och raka som m\u00f6jligt och s\u00e5dana anl\u00e4ggningsdelar undvikas som p\u00e5 grund av sin utformning ger o\u00f6nskade str\u00f6mningsf\u00f6rluster, t ex T-stycken, skarpa kr\u00f6kar och \u00f6verg\u00e5ngar. F\u00f6r att undvika uppladdning p\u00e5 grund av statisk elektricitet, ska samtliga delar i ventilationsanl\u00e4ggningen potentialutj\u00e4mnas.\n\nDammavskiljning\nI de fall fr\u00e5nluften inneh\u00e5ller explosiv\u00e4mnesdamm b\u00f6r anl\u00e4ggningen ha dammavskiljning.\n\nI m\u00e5nga fall kan explosiv\u00e4mnesdammet flegmatiseras (g\u00f6ras mindre k\u00e4nsligt) med vatten, varf\u00f6r v\u00e5tavskiljare kan vara l\u00e4mplig.\n\nRutiner f\u00f6r t\u00f6mning av dammavskiljare ska finnas f\u00f6r att m\u00e4ngden explosiv\u00e4mnesdamm i avskiljaren ska begr\u00e4nsas.\n\nDammavskiljarens effektivitet b\u00f6r kontrolleras regelbundet, t ex genom inspektion av kanal mellan avskiljare och fl\u00e4kt.\n\nEnergi\u00e5tervinning\n\u00c5terluft eller installation av v\u00e4rmev\u00e4xlare kan accepteras fr\u00e5n zon E2 och zon E3, om ingen risk f\u00f6r avs\u00e4ttning av damm, kondensat eller sublimat f\u00f6religger.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-b38ad0e stk-block-background\" data-block-id=\"b38ad0e\"><style>.stk-b38ad0e {background-color:#f5f5f5 !important;padding-top:80px !important;padding-bottom:80px !important;margin-bottom:0px !important;}.stk-b38ad0e:before{background-color:#f5f5f5 !important;}@media screen and (max-width: 767px){.stk-b38ad0e {padding-top:60px !important;padding-bottom:60px !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-b38ad0e-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-ca538ba\" data-v=\"4\" data-block-id=\"ca538ba\"><style>.stk-ca538ba {max-width:1024px !important;min-width:auto !important;margin-right:auto !important;margin-left:auto !important;}@media screen and (max-width: 1023px){.stk-ca538ba {max-width:90% !important;min-width:auto !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-ca538ba-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-ca538ba-inner-blocks\">\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-27ee891\" data-block-id=\"27ee891\"><style>.stk-27ee891 {margin-bottom:30px !important;}.stk-27ee891-column{--stk-columns-spacing:0px !important;--stk-column-gap:60px !important;}@media screen and (max-width: 767px){.stk-27ee891 {margin-bottom:0px !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-27ee891-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-da330bc\" data-v=\"4\" data-block-id=\"da330bc\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-da330bc-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-da330bc-inner-blocks\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-5cd1834\" id=\"ventilationsmangder\" data-block-id=\"5cd1834\"><h3 class=\"stk-block-heading__text\">Ventilationsm\u00e4ngder<\/h3><\/div>\n\n\n\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-95fe23e\" data-block-id=\"95fe23e\"><style>@media screen and (max-width: 1023px){.stk-95fe23e {margin-bottom:30px !important;}}<\/style><p class=\"stk-block-text__text\">Generella riktlinjer f\u00f6r erforderlig ventilation kan inte ges. Denna m\u00e5ste avg\u00f6ras fr\u00e5n fall till fall, varvid h\u00e4nsyn tas bl a till riskk\u00e4llans l\u00e4ge, typ och m\u00e4ngd explosiv\u00e4mnesdamm, punktutsugningens utformning samt f\u00f6rdelningen mellan punktutsugning och allm\u00e4n ventilation<\/p><\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-8fa45a2\" data-v=\"4\" data-block-id=\"8fa45a2\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-8fa45a2-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-8fa45a2-inner-blocks\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-028ecf5\" id=\"skyddsatgarder-vid-mekanisk-ventilation\" data-block-id=\"028ecf5\"><h3 class=\"stk-block-heading__text\">Skydds\u00e5tg\u00e4rder vid mekanisk ventilation<\/h3><\/div>\n\n\n\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-9b5197f\" data-block-id=\"9b5197f\"><style>@media screen and (max-width: 1023px){.stk-9b5197f {margin-bottom:30px !important;}}<\/style><p class=\"stk-block-text__text\">Ventilationsbortfall beaktas t ex genom att elektrisk materiel som inte uppfyller kraven p\u00e5 det explosionsfarliga omr\u00e5de som uppst\u00e5r vid ventilationsbortfall fr\u00e5nkopplas och genom att verksamheten avbryts.\n\nKonsekvenserna av ventilationsbortfallet beaktas f\u00f6re \u00e5terinkoppling av elektrisk materiel.<\/p><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-ae3776a stk-block-background\" data-block-id=\"ae3776a\"><style>.stk-ae3776a {background-color:#f5f5f5 !important;padding-top:80px !important;padding-bottom:80px !important;margin-bottom:0px !important;}.stk-ae3776a:before{background-color:#f5f5f5 !important;}@media screen and (max-width: 767px){.stk-ae3776a {padding-top:60px !important;padding-bottom:60px !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-ae3776a-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dd9beb2\" data-v=\"4\" data-block-id=\"dd9beb2\"><style>.stk-dd9beb2 {max-width:1024px !important;min-width:auto !important;margin-right:auto !important;margin-left:auto !important;}@media screen and (max-width: 1023px){.stk-dd9beb2 {max-width:90% !important;min-width:auto !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dd9beb2-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dd9beb2-inner-blocks\">\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-2d51515\" data-block-id=\"2d51515\"><style>.stk-2d51515 {margin-bottom:30px !important;}.stk-2d51515-column{--stk-columns-spacing:0px !important;--stk-column-gap:60px !important;}@media screen and (max-width: 767px){.stk-2d51515 {margin-bottom:0px !important;}}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-2d51515-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-2fafc88\" data-v=\"4\" data-block-id=\"2fafc88\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-2fafc88-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-2fafc88-inner-blocks\">\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-6aa396a\" data-block-id=\"6aa396a\"><style>@media screen and (max-width: 1023px){.stk-6aa396a {margin-bottom:30px !important;}}<\/style><p class=\"stk-block-text__text\"><br><br>SEK Svensk Elstandard<\/p><\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-3370513\" data-v=\"4\" data-block-id=\"3370513\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-3370513-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-3370513-inner-blocks\"><\/div><\/div><\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Vid hantering, framf\u00f6r allt vid tillverkning, av explosiva varor erfordras som regel mekanisk ventilation f\u00f6&#8230;<\/p>\n","protected":false},"featured_media":2371,"template":"","meta":{"_acf_changed":false},"kunskapsbankskategori":[10],"class_list":["post-2374","kunskapsbankinlagg","type-kunskapsbankinlagg","status-publish","has-post-thumbnail","hentry","kunskapsbankskategori-industri"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - 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