{"id":401400,"date":"2024-10-20T04:56:09","date_gmt":"2024-10-20T04:56:09","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-61557-52021\/"},"modified":"2024-10-26T08:43:54","modified_gmt":"2024-10-26T08:43:54","slug":"bs-en-iec-61557-52021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-61557-52021\/","title":{"rendered":"BS EN IEC 61557-5:2021"},"content":{"rendered":"

IEC 61557-5:2019 is available as IEC 61557-5:2019 RLV<\/span> which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.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: a) definitions and symbols in Clause 3 modified; b) subclauses in Clause 4 restructured and aligned with other parts of the series; c) limits for reduced voltages 25 V RMS or 35 V peak removed from 4.5; d) requirements for clamps added; e) marking for rated voltages to earth and measurement category added to Clause 5; f) warning about absence of hazardous voltage added in Clause 5; g) the term “percentage operating uncertainty” replaced by “operating uncertainty” in Clause 6; h) equation for uncertainty corrected in Table 1;i) new Annex A on test measurements with loop clamps added.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
7<\/td>\nAnnex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
12<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
13<\/td>\nFOREWORD <\/td>\n<\/tr>\n
15<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
17<\/td>\n4 Requirements
4.1 General
4.2 Output voltage
4.3 Disturbance voltage
4.4 Permissible resistance of probe and auxiliary earth electrode
4.5 Electrical safety <\/td>\n<\/tr>\n
18<\/td>\n4.6 Clamps intended to measure earth loop resistances according to IEC 60364\ufffd6:2016, Annex C, Clause C.3
5 Marking and operating instructions
5.1 Marking
5.2 Operating instructions
6 Tests
6.1 General <\/td>\n<\/tr>\n
19<\/td>\n6.2 Operating uncertainty
Table 1 \u2013 Calculation of operating uncertainty <\/td>\n<\/tr>\n
20<\/td>\n6.3 Electrical safety <\/td>\n<\/tr>\n
21<\/td>\nAnnex A (informative) Recommended test configuration for earth loop clamps
A.1 General
A.2 Test purpose
A.3 Test result <\/td>\n<\/tr>\n
22<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures – Resistance to earth<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2022<\/td>\n24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":401409,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[543,2641],"product_tag":[],"class_list":{"0":"post-401400","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-240-01","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/401400","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\/401409"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=401400"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=401400"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=401400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}