{"id":36800,"date":"2014-08-10T09:58:09","date_gmt":"2014-08-10T09:58:09","guid":{"rendered":"http:\/\/helseforhandleren.no\/butikk\/uncategorized\/mu-metal-folie-nmf25-mot-magnetfelt-25-cm-bred-50m-rull\/"},"modified":"2025-10-16T20:17:35","modified_gmt":"2025-10-16T18:17:35","slug":"mu-metal-folie-nmf25-mot-magnetfelt-25-cm-bred-50m-rull","status":"publish","type":"product","link":"https:\/\/helseforhandleren.no\/en\/shop\/shieldin-en\/magnetic-field-shielding\/mu-metal-folie-nmf25-mot-magnetfelt-25-cm-bred-50m-rull\/","title":{"rendered":"Mu-metal folie NMF25 mot magnetfelt (25 cm bred) 50m Rull"},"content":{"rendered":"<p>M\u00e5l:<br \/>0,1 mm tykk, 250 mm bredde.<\/p>\n<p>Leveres i ruller og bestilles metervis.<\/p>\n<p>Bruksomr\u00e5der:<\/p>\n<p>&#8211; avskjerming av transformatorer,&nbsp; ogs\u00e5 sm\u00e5 ladere \/trafo i huset&nbsp; som f.eks. i lysstoffr\u00f8r, halogenlamper, mobilladere &#8230;<br \/>&#8211; sikringsskap, str\u00f8minntak, etc.<br \/>&#8211; magnetfelt i bilen<br \/>&#8211; kabler<\/p>\n<p>Mu-metall brukes ogs\u00e5 i industrien: B\u00e5de for \u00e5 skjerme arbeideren mot felt fra motorer, trafoer etc &#8211; og for \u00e5 sikre maskiner og&nbsp; deler i apparaturer og utstyr mot interferens.<\/p>\n<p>Montering:<\/p>\n<p>For \u00e5 oppn\u00e5 maksimal effekt, monteres mu-metallfolien n\u00e6rmest mulig str\u00e5lekilden. <br \/>Magnetfeltet sprer seg i en radius rundt str\u00e5llingskilden, derfor b\u00f8r&nbsp; ogs\u00e5 alle sider av str\u00e5lekilden skjermes for \u00e5 oppn\u00e5&nbsp; full effekt.<br \/>NMF25 is a Mu-metal foil for shielding of low-frequency magnetic fields. Due to the low electrical resistance even for shielding low-frequency electric fields (LF) and high-frequency radiation (HF).<\/p>\n<p>For small areas by using a double sided adhesive tape or for large-surface applications with glue. Can easily be bent and folded and be cut with scissors or a knife. Good corrosion resistance in a normal environment.<\/p>\n<p>Technical data<\/p>\n<p>&nbsp;&nbsp;&nbsp; Width: 25 cm<br \/>&nbsp;&nbsp;&nbsp; Length: By the meter \/ 50 m roll<br \/>&nbsp;&nbsp;&nbsp; Attenuation LF magnetic field: 14 dB (80 % shielding); for more shielding use multiple layers!<br \/>&nbsp;&nbsp;&nbsp; Attenuation HF: 100 dB at 1 GHz<br \/>&nbsp;&nbsp;&nbsp; Saturation flux density: 0.8 T<br \/>&nbsp;&nbsp;&nbsp; Weight: 900 g\/m\u00b2<br \/>&nbsp;&nbsp;&nbsp; Material thickness: 0.1 mm<br \/>&nbsp;&nbsp;&nbsp; Color: Silver<br \/>&nbsp;&nbsp;&nbsp; Materials: Alloy of nickel, iron, molybdenum<br \/>&nbsp;&nbsp;&nbsp; Surface conductivity: 0.004 ohm (square resistance)<\/p>\n<p>Processing<\/p>\n<p>In the case of processing in electronic applications, standard double sided adhesive tapes can be used for bonding on the surface. For walls, ceilings and floors (for shielding cables or fuse boxes) use viscous glue with high adhesive strength. The strips of the foil should be overlapped at least 1 cm. Fuse boxes should be shielded with at least 2 x 2m! After drying, NMF25 can be painted over with commercial diespersion paint.<\/p>\n<p>Grounding<\/p>\n<p>Due to the highly conductive surface this material can be contacted and grounded easy to shield low frequency (LF) electric fields. For professional grounding we recommend our grounding strap EB in combination with our grouding set ES.<\/p>\n<p>Shielding attenuation<\/p>\n<p>The shielding attenuation is regularly tested in our own laboratory or by Professor Dipl.Ing. Pauli at the University of the German Federal Armed Forces in Munich due to the standards ASTM D4935-10 and\/or IEEE-STD-299-2006. Current expert report is available uppon request. Important: The diagram above shows the high-frequency attenuation! The LF magnetic field attenuation is 14 dB, whats a shielding of 80 %.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mu-metall er den enste virkelig efektive m\u00e5ten \u00e5 skjerme lavfrekvente magnetfelt p\u00e5.<br \/>Mu-metall blir spesiallaget av ulike metaller og kommer i folier&nbsp; eller ferdiglagete plater. Foien er p\u00e5 25 cm bredde og lengden selges etter \u00f8nsket m\u00e5ll.&nbsp; Folien kan kuttes med saks og b\u00f8yes, f.eks. rundt magnetfelt-kilden. Den kan enkelt festets med tosidet tape eller dispersjonslim. Slik kan folien klistres p\u00e5 kildene til magnetfeltene.<\/p>\n","protected":false},"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[582,1040,596,845,929],"product_tag":[],"class_list":{"0":"post-36800","1":"product","2":"type-product","3":"status-publish","5":"product_cat-household","6":"product_cat-magnetic-field-shielding","7":"product_cat-radiation-emf-en","8":"product_cat-shieldin-en","9":"product_cat-shield-end-building-materials","11":"first","12":"outofstock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/helseforhandleren.no\/en\/wp-json\/wp\/v2\/product\/36800","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/helseforhandleren.no\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/helseforhandleren.no\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/helseforhandleren.no\/en\/wp-json\/wp\/v2\/comments?post=36800"}],"wp:attachment":[{"href":"https:\/\/helseforhandleren.no\/en\/wp-json\/wp\/v2\/media?parent=36800"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/helseforhandleren.no\/en\/wp-json\/wp\/v2\/product_brand?post=36800"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/helseforhandleren.no\/en\/wp-json\/wp\/v2\/product_cat?post=36800"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/helseforhandleren.no\/en\/wp-json\/wp\/v2\/product_tag?post=36800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}