{"id":693000,"date":"2024-11-06T05:31:35","date_gmt":"2024-11-06T05:31:35","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ul-1446a2019\/"},"modified":"2024-11-06T05:31:35","modified_gmt":"2024-11-06T05:31:35","slug":"ul-1446a2019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ul\/ul-1446a2019\/","title":{"rendered":"UL 1446A:2019"},"content":{"rendered":"<p><b>1 Scope<\/b><\/p>\n<p>1.1 These requirements cover test procedures used in the evaluation of Class 120 (E) or higher rated electrical insulation systems (EIS) with operating voltages of 600V and above for use in; open wound, cast coil, resin encapsulated and pre-preg flexible sheet rolled, dry-type high-voltage transformers where the thermal factor is the dominating aging factor and where transient over-voltages or partial discharge may be present.<\/p>\n<p>1.2 This outline is intended to evaluate a single EIS and establish a Voltage Stress Level [VSL] for the various insulation functions tested such as turn-to-turn, layer-to-layer, section-to-section, coil-to-coil and coil-to-ground. An EIS established under this outline is suitable for all transformers constructed with this EIS such that the design maintains the insulation thickness at or below the tested VSL values.<\/p>\n<p>These requirements for the evaluation of an EIS do not establish thermal ratings for\/or alter established thermal ratings for individual components.<\/p>\n<p>1.4 These requirements do not cover insulation systems exposed to radiation or operating in oils,refrigerants, soaps, or other media that potentially degrade insulating materials.<\/p>\n<p>1.5 When any performance aspect of an end-product requirement is not covered by this outline, the applicable standard shall be used.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Outline of Investigation for Dry Type Transformer Insulation Systems Rated Above 600V<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/ul\/\"><b>UL<\/b><\/a><\/td>\n<td>2019-06-18<\/td>\n<td>12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":693010,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2680],"product_tag":[],"class_list":{"0":"post-693000","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ul","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/693000","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/693010"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=693000"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=693000"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=693000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}