{"id":20,"date":"2026-02-11T18:50:10","date_gmt":"2026-02-11T17:50:10","guid":{"rendered":"https:\/\/orks.no\/?page_id=20"},"modified":"2026-02-12T17:27:54","modified_gmt":"2026-02-12T16:27:54","slug":"spenningsfall","status":"publish","type":"page","link":"https:\/\/orks.no\/?page_id=20","title":{"rendered":"Spenningsfall"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-3a88641f wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"border-width:2px;background-color:#ffffff;flex-basis:50%\">\n<h2>3fas<\/h2>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><mrow><mi mathvariant=\"normal\">\u0394<\/mi><\/mrow><mi>U<\/mi><mo>=<\/mo><mfrac><mrow><msub><mi>I<\/mi><mi>b<\/mi><\/msub><mo>\u2217<\/mo><mi>\u03c1<\/mi><mo>\u2217<\/mo><mi>l<\/mi><mo>\u2217<\/mo><msqrt><mn>3<\/mn><\/msqrt><mo>\u2217<\/mo><mi>c<\/mi><mi>o<\/mi><mi>s<\/mi><mi>\u03c6<\/mi><\/mrow><mi>A<\/mi><\/mfrac><\/mrow><annotation encoding=\"application\/x-tex\">\u0394U= \\frac{I_{b}*\u03c1*l*\\sqrt{3}*cos\u03c6}A<\/annotation><\/semantics><\/math><\/div>\n\n\n<div class=\"formbox-wrapper\"><form action=\"https:\/\/orks.no\/?page_id=20\" name=\"formbox\" class=\"formbox formbox-2\" id=\"calculator_2\">\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<fieldset class=\"formbox__container\"><div class=\"formbox__title\">I<\/div><div class=\"formbox__body\"><div class=\"formbox__field has-addon is-right\"><span class=\"formbox__field-addon\">A<\/span><label class=\"formbox__field-lable\" for=\"formbox-field-1\">I<\/label><input type=\"number\" class=\"formbox__field-input\" value=\"\" step=\"0.01\" required=\"\" placeholder=\"belastning\" name=\"formbox-field-1\" id=\"formbox-field-1\"><\/div><\/div> <\/fieldset><fieldset class=\"formbox__container\"><div class=\"formbox__title\">Lengde<\/div><div class=\"formbox__body\"><div class=\"formbox__field has-addon is-right\" style=\"box-shadow: none\"><span class=\"formbox__field-addon\">m<\/span><label class=\"formbox__field-lable\" for=\"formbox-field-2\">Lengde<\/label><input type=\"number\" class=\"formbox__field-input\" value=\"\" required=\"\" name=\"formbox-field-2\" id=\"formbox-field-2\"><\/div><\/div> <\/fieldset><fieldset class=\"formbox__container\"><div class=\"formbox__title\">cos\u03c6<\/div><div class=\"formbox__body\"><div class=\"formbox__field\"><label class=\"formbox__field-lable\" for=\"formbox-field-3\">cos\u03c6<\/label><input type=\"number\" class=\"formbox__field-input\" value=\"\" required=\"\" placeholder=\"1\" name=\"formbox-field-3\" id=\"formbox-field-3\"><\/div><\/div> <\/fieldset><fieldset class=\"formbox__container\"><div class=\"formbox__title\">Areal<\/div><div class=\"formbox__body\"><div class=\"formbox__field has-addon is-right\" style=\"box-shadow: none\"><span class=\"formbox__field-addon\">mm2<\/span><label class=\"formbox__field-lable\" for=\"formbox-field-4\">Areal<\/label><input type=\"number\" class=\"formbox__field-input\" value=\"\" required=\"\" name=\"formbox-field-4\" id=\"formbox-field-4\"><\/div><\/div> <\/fieldset><fieldset class=\"formbox__container has-result is-hidden\"><div class=\"formbox__title\" style=\"box-shadow: none\">\u2206U=<\/div><div class=\"formbox__body\"><div class=\"formbox__field is-result has-addon is-right\" style=\"box-shadow: none\"><span class=\"formbox__field-addon\">V<\/span><label class=\"formbox__field-lable\" for=\"formbox-field-5\">\u2206U=<\/label><input type=\"text\" class=\"formbox__field-result\" readonly=\"\" name=\"formbox-field-5\" id=\"formbox-field-5\"><\/div><\/div> <\/fieldset><fieldset class=\"formbox__container\"><hr> <\/fieldset><fieldset class=\"formbox__container\"><div class=\"formbox__title\">U<\/div><div class=\"formbox__body\"><div class=\"formbox__field has-addon is-right\"><span class=\"formbox__field-addon\">V<\/span><label class=\"formbox__field-lable\" for=\"formbox-field-6\">U<\/label><input type=\"number\" class=\"formbox__field-input\" value=\"\" name=\"formbox-field-6\" id=\"formbox-field-6\"><\/div><\/div> <\/fieldset><fieldset class=\"formbox__container has-result is-hidden\"><div class=\"formbox__title\">\u2206U%=<\/div><div class=\"formbox__body\"><div class=\"formbox__field is-result has-addon is-right\" style=\"box-shadow: none\"><span class=\"formbox__field-addon\">%<\/span><label class=\"formbox__field-lable\" for=\"formbox-field-7\">\u2206U%=<\/label><input type=\"text\" class=\"formbox__field-result\" readonly=\"\" name=\"formbox-field-7\" id=\"formbox-field-7\"><\/div><\/div> <\/fieldset>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/form><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"border-width:2px;background-color:#ffffff;flex-basis:50%\">\n<h2>1-2fas<\/h2>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><mrow><mi mathvariant=\"normal\">\u0394<\/mi><\/mrow><mi>U<\/mi><mo>=<\/mo><mfrac><mrow><msub><mi>I<\/mi><mi>b<\/mi><\/msub><mo>\u2217<\/mo><mi>\u03c1<\/mi><mo>\u2217<\/mo><mi>l<\/mi><mo>\u2217<\/mo><mn>2<\/mn><mo>\u2217<\/mo><mi>c<\/mi><mi>o<\/mi><mi>s<\/mi><mi>\u03c6<\/mi><\/mrow><mi>A<\/mi><\/mfrac><\/mrow><annotation encoding=\"application\/x-tex\">\u0394U= \\frac{I_{b}*\u03c1*l*2*cos\u03c6}A<\/annotation><\/semantics><\/math><\/div>\n\n\n<div class=\"formbox-wrapper\"><form action=\"https:\/\/orks.no\/?page_id=20\" name=\"formbox\" class=\"formbox formbox-3\" id=\"calculator_3\">\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<fieldset class=\"formbox__container\"><div class=\"formbox__title\">Ib<\/div><div class=\"formbox__body\"><div class=\"formbox__field has-addon is-right\" style=\"box-shadow: none\"><span class=\"formbox__field-addon\">A<\/span><label class=\"formbox__field-lable\" for=\"formbox-field-1\">Ib<\/label><input type=\"number\" class=\"formbox__field-input\" value=\"\" step=\"0.01\" required=\"\" name=\"formbox-field-1\" id=\"formbox-field-1\"><\/div><\/div> <\/fieldset><fieldset class=\"formbox__container\"><div class=\"formbox__title\">Lengde<\/div><div class=\"formbox__body\"><div class=\"formbox__field has-addon is-right\" style=\"box-shadow: none\"><span class=\"formbox__field-addon\">m<\/span><label class=\"formbox__field-lable\" for=\"formbox-field-2\">Lengde<\/label><input type=\"number\" class=\"formbox__field-input\" value=\"\" required=\"\" name=\"formbox-field-2\" id=\"formbox-field-2\"><\/div><\/div> <\/fieldset><fieldset class=\"formbox__container\"><div class=\"formbox__title\">cos\u03c6<\/div><div class=\"formbox__body\"><div class=\"formbox__field\"><label class=\"formbox__field-lable\" for=\"formbox-field-3\">cos\u03c6<\/label><input type=\"number\" class=\"formbox__field-input\" value=\"\" required=\"\" placeholder=\"1\" name=\"formbox-field-3\" id=\"formbox-field-3\"><\/div><\/div> <\/fieldset><fieldset class=\"formbox__container\"><div class=\"formbox__title\">Areal<\/div><div class=\"formbox__body\"><div class=\"formbox__field has-addon is-right\" style=\"box-shadow: none\"><span class=\"formbox__field-addon\">mm2<\/span><label class=\"formbox__field-lable\" for=\"formbox-field-4\">Areal<\/label><input type=\"number\" class=\"formbox__field-input\" value=\"\" required=\"\" name=\"formbox-field-4\" id=\"formbox-field-4\"><\/div><\/div> <\/fieldset><fieldset class=\"formbox__container has-result is-hidden\"><div class=\"formbox__title\" style=\"box-shadow: none\">\u2206U=<\/div><div class=\"formbox__body\"><div class=\"formbox__field is-result has-addon is-right\" style=\"box-shadow: none\"><span class=\"formbox__field-addon\">V<\/span><label class=\"formbox__field-lable\" for=\"formbox-field-5\">\u2206U=<\/label><input type=\"text\" class=\"formbox__field-result\" readonly=\"\" name=\"formbox-field-5\" id=\"formbox-field-5\"><\/div><\/div> <\/fieldset><fieldset class=\"formbox__container\"><hr> <\/fieldset><fieldset class=\"formbox__container\"><div class=\"formbox__title\">U<\/div><div class=\"formbox__body\"><div class=\"formbox__field has-addon is-right\"><span class=\"formbox__field-addon\">V<\/span><label class=\"formbox__field-lable\" for=\"formbox-field-6\">U<\/label><input type=\"number\" class=\"formbox__field-input\" value=\"\" name=\"formbox-field-6\" id=\"formbox-field-6\"><\/div><\/div> <\/fieldset><fieldset class=\"formbox__container has-result is-hidden\"><div class=\"formbox__title\">\u2206U%=<\/div><div class=\"formbox__body\"><div class=\"formbox__field is-result has-addon is-right\" style=\"box-shadow: none\"><span class=\"formbox__field-addon\">%<\/span><label class=\"formbox__field-lable\" for=\"formbox-field-7\">\u2206U%=<\/label><input type=\"text\" class=\"formbox__field-result\" readonly=\"\" name=\"formbox-field-7\" id=\"formbox-field-7\"><\/div><\/div> <\/fieldset>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/form><\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":8,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"pagelayer_contact_templates":[],"_pagelayer_content":"","footnotes":""},"class_list":["post-20","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/orks.no\/index.php?rest_route=\/wp\/v2\/pages\/20","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/orks.no\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/orks.no\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/orks.no\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/orks.no\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=20"}],"version-history":[{"count":10,"href":"https:\/\/orks.no\/index.php?rest_route=\/wp\/v2\/pages\/20\/revisions"}],"predecessor-version":[{"id":36,"href":"https:\/\/orks.no\/index.php?rest_route=\/wp\/v2\/pages\/20\/revisions\/36"}],"up":[{"embeddable":true,"href":"https:\/\/orks.no\/index.php?rest_route=\/wp\/v2\/pages\/8"}],"wp:attachment":[{"href":"https:\/\/orks.no\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}