{"id":240785,"date":"2024-10-19T15:45:55","date_gmt":"2024-10-19T15:45:55","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-7769-1-11997\/"},"modified":"2024-10-25T10:31:11","modified_gmt":"2024-10-25T10:31:11","slug":"bs-7769-1-11997","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-7769-1-11997\/","title":{"rendered":"BS 7769-1.1:1997"},"content":{"rendered":"

Applicable to steady-state operation of cables at all alternating voltages and direct voltages up to 5 kV, buried as well as in air. This section provides formulae for current ratings and losses.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nBRITISH STANDARD <\/td>\n<\/tr>\n
2<\/td>\nCommittees responsible for this British\ufffdStandard <\/td>\n<\/tr>\n
3<\/td>\nContents <\/td>\n<\/tr>\n
5<\/td>\n1 General
1.1 Scope <\/td>\n<\/tr>\n
6<\/td>\n1.2 Normative references
1.3 Symbols <\/td>\n<\/tr>\n
9<\/td>\n1.4 Permissible current rating of cables <\/td>\n<\/tr>\n
12<\/td>\n2 Calculation of losses
2.1 AC resistance of conductor <\/td>\n<\/tr>\n
14<\/td>\n2.2 Dielectric losses (applicable to a.c. cables only) <\/td>\n<\/tr>\n
15<\/td>\n2.3 Loss factor for sheath and screen <\/td>\n<\/tr>\n
22<\/td>\n2.4 Loss factor for armour, reinforcement and steel pipes (applicable to power frequency a.c. cables … <\/td>\n<\/tr>\n
27<\/td>\nTable 1 – Electrical resistivities and temperature coefficients of metals used <\/td>\n<\/tr>\n
28<\/td>\nTable 2 – Skin and proximity effects \u2014 Experimental values for the coefficients <\/td>\n<\/tr>\n
29<\/td>\nTable 3 – Values of relative permittivity and loss factors for the insulation of high-voltage and medium-vo… <\/td>\n<\/tr>\n
30<\/td>\nTable 4 – Absorption coefficient of solar radiation for cable surfaces <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Electric cables. Calculation of the current rating. Current rating equations (100% load factor) and calculation of losses – General<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2002<\/td>\n32<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":240793,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[493,2641],"product_tag":[],"class_list":{"0":"post-240785","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-060-20","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\/240785","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\/240793"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=240785"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=240785"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=240785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}