{"id":571589,"date":"2024-11-05T19:27:52","date_gmt":"2024-11-05T19:27:52","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iec-61557-52019\/"},"modified":"2024-11-05T19:27:52","modified_gmt":"2024-11-05T19:27:52","slug":"iec-61557-52019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iec\/iec-61557-52019\/","title":{"rendered":"IEC 61557-5:2019"},"content":{"rendered":"<p>IEC 61557-5:2019 specifies the requirements applicable to measuring equipment for measuring the resistance to earth using an AC voltage. IEC 61557-5:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:<br \/>\na) definitions and symbols in Clause 3 modified;<br \/>\nb) subclauses in Clause 4 restructured and aligned with other parts of the series;<br \/>\nc) limits for reduced voltages 25 V RMS or 35 V peak removed from 4.5;<br \/>\nd) requirements for clamps added;<br \/>\ne) marking for rated voltages to earth and measurement category added to Clause 5;<br \/>\nf) warning about absence of hazardous voltage added in Clause 5;<br \/>\ng) the term &#034;percentage operating uncertainty&#034; replaced by &#034;operating uncertainty&#034; in Clause 6;<br \/>\nh) equation for uncertainty corrected in Table 1;<br \/>\ni) new Annex A on test measurements with loop clamps added.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC &#8211; Equipment for testing, measuring or monitoring of protective measures &#8211; Part 5: Resistance to earth<\/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\/iec\/\"><b>IEC<\/b><\/a><\/td>\n<td>2019-07-26<\/td>\n<td>28<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":571601,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[285,495,543,2636],"product_tag":[],"class_list":{"0":"post-571589","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-220-20","7":"product_cat-29-080-01","8":"product_cat-29-240-01","9":"product_cat-iec","11":"first","12":"instock","13":"sold-individually","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/571589","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\/571601"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=571589"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=571589"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=571589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}