{"id":241235,"date":"2024-10-19T15:47:52","date_gmt":"2024-10-19T15:47:52","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iec-60287-2-11994a22006\/"},"modified":"2024-10-25T10:36:03","modified_gmt":"2024-10-25T10:36:03","slug":"bs-iec-60287-2-11994a22006","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iec-60287-2-11994a22006\/","title":{"rendered":"BS IEC 60287-2-1:1994+A2:2006"},"content":{"rendered":"

The contents of the corrigendum of January 2008 have been included in this copy.Applicable to steady-state operation of cables at all alternating voltages and direct voltages up to 5 kV. This section provides formulae for thermal resistance.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\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
3<\/td>\nContents <\/td>\n<\/tr>\n
5<\/td>\nIntroduction
1 General
1.1 Scope <\/td>\n<\/tr>\n
6<\/td>\n1.2 Symbols <\/td>\n<\/tr>\n
8<\/td>\n2 Calculation of thermal resistances
2.1 Thermal resistance of the constituent parts of a cable, <\/td>\n<\/tr>\n
13<\/td>\n2.2 External thermal resistance <\/td>\n<\/tr>\n
20<\/td>\n3 Digital calculation of quantities given graphically
3.1 General <\/td>\n<\/tr>\n
23<\/td>\n3.2 Calculation <\/td>\n<\/tr>\n
24<\/td>\nTable 1 Thermal resistivities of materials <\/td>\n<\/tr>\n
25<\/td>\nTable 2 Values for constants <\/td>\n<\/tr>\n
26<\/td>\nTable 3 Absorption coefficient of solar radiation for cable surfaces
Table 4 Values of constants
Figure 1 Diagram showing a group of q cables and their reflection in the ground-air surface <\/td>\n<\/tr>\n
27<\/td>\nFigure 2 Geometric factor G for two-core belted cables with circular conductors <\/td>\n<\/tr>\n
28<\/td>\nFigure 3 Geometric factor <\/td>\n<\/tr>\n
29<\/td>\nFigure 4 Thermal resistance of three-core screened cables with circular conductors compared to that of a c… <\/td>\n<\/tr>\n
30<\/td>\nFigure 5 Thermal resistance of three-core screened cables with sector-shaped conductors compared with that… <\/td>\n<\/tr>\n
31<\/td>\nFigure 6 Geometric factor <\/td>\n<\/tr>\n
32<\/td>\nFigure 7a Heat dissipation coefficient for black surfaces of cables in free air <\/td>\n<\/tr>\n
33<\/td>\nFigure 7b Heat dissipation coefficient for black surfaces of cables in free air <\/td>\n<\/tr>\n
34<\/td>\nFigure 7c Heat dissipation coefficient for black surfaces of cables in free air <\/td>\n<\/tr>\n
35<\/td>\nFigure 8 Graph for the calculation of external thermal resistance of cables in air <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Electric cables. Calculation of the current rating – Thermal resistance – Calculation of thermal resistance<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2008<\/td>\n36<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":241240,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[493,2641],"product_tag":[],"class_list":{"0":"post-241235","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\/241235","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\/241240"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=241235"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=241235"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=241235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}