{"id":240847,"date":"2024-10-19T15:46:12","date_gmt":"2024-10-19T15:46:12","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-7870-8-62003\/"},"modified":"2024-10-25T10:31:45","modified_gmt":"2024-10-25T10:31:45","slug":"bs-7870-8-62003","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-7870-8-62003\/","title":{"rendered":"BS 7870-8.6:2003"},"content":{"rendered":"<p>This section of BS 7870 specifies requirements for the construction, dimensions and mechanical and physical properties of multipair cables with halogen-free insulation and sheaths, having reduced fire propagation performance and low emission of smoke when affected by fire.<\/p>\n<p>It specifies requirements for multipair cables (up to 200-pair) with copper conductors, a collective screen and armouring consisting of a single layer of steel wires or a double layer of steel tapes.<\/p>\n<p>It specifies requirements for both Type 1 and Type 2 cables, which are defined as follows:<\/p>\n<ul>\n<li>Type 1: cable designed for the installation and operating conditions prevailing in a conventional fossil fuelled power station or equivalent location;<\/li>\n<li>Type 2: cable designed for the installation and operating conditions prevailing in a PWR power station, but excluding location in or around the containment area.<\/li>\n<\/ul>\n<p>The requirements specified in this section of BS 7870 are applicable to both Type 1 and Type 2 cables unless otherwise indicated.<\/p>\n<p>This section of BS 7870 is applicable to cables for use in and around power stations and other installations having similar cable densities.<\/p>\n<blockquote>\n<p>NOTE A \u201cguide to use\u201d is given in Annex A.<\/p>\n<\/blockquote>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>1<b><\/td>\n<td>BRITISH STANDARD  <\/td>\n<\/tr>\n<tr>\n<td><b>2<b><\/td>\n<td>Committees responsible for this British Standard  <\/td>\n<\/tr>\n<tr>\n<td><b>3<b><\/td>\n<td>Contents  <\/td>\n<\/tr>\n<tr>\n<td><b>5<b><\/td>\n<td>1 Scope <br \/> 2 Normative references  <\/td>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>3 Rated voltage <br \/> 4 Conductors <br \/> 5 Insulation <br \/> 6 Identification of cores <br \/> 6.1 Cores  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>Table 1 &#8211; Colour codes <br \/> 6.2 Pairs, quads and units  <\/td>\n<\/tr>\n<tr>\n<td><b>8<b><\/td>\n<td>7 Assembly of cores, fillers and binders <br \/> 8 Rip cord <br \/> 9 Collective screen <br \/> 10 Bedding layer <br \/> 11 Armouring <br \/> 12 Oversheath  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>13 Marking <br \/> 13.1 External marking <br \/> 13.2 Identification of year of manufacture <br \/> 13.3 Mark of an approval organization  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>13.4 Additional marking <br \/> 14 Dimensions  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>Table 2 &#8211; Multipair cables (Type 1) <br \/> Table 3 &#8211; Multipair cables (Type 2)  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>15 Tests <br \/> Table 4 &#8211; Schedule of tests  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>16 Routine tests <br \/> 16.1 General <br \/> 16.2 Conductor resistance <br \/> 16.3 Insulation resistance <br \/> 16.4 Voltage test <br \/> 16.5 Spark test on oversheath <br \/> 16.6 Cable markings <br \/> 16.7 Diameters over bedding and overall  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>17 Sample tests <br \/> 17.1 General <br \/> 17.2 Conductor material and construction <br \/> 17.3 Insulation <br \/> 17.4 Capacitance unbalance <br \/> 17.5 Identification <br \/> 17.6 Laid-up cores <br \/> 17.7 Rip cord <br \/> 17.8 Collective screen  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>17.9 Bedding layer <br \/> 17.10 Armour wire <br \/> Table 5 &#8211; Diameter of armour wire <br \/> 17.11 Armour tape <br \/> 17.12 Oversheath <br \/> 17.13 Tests under fire conditions  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>18 Type tests <br \/> 18.1 General <br \/> 18.2 Type approval <br \/> Table 6 &#8211; Type approval tests <br \/> 18.3 Mutual capacitance <br \/> 18.4 Capacitance unbalance <br \/> 18.5 Mutual inductance <br \/> 18.6 Voltage test after bending  <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>18.7 Armour <br \/> Table 7 &#8211; Mass of zinc coating <br \/> 18.8 Insulation <br \/> Table 8 &#8211; Requirements for non-electrical tests on polyethylene  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>Table 9 &#8211; Requirements for non-electrical tests on aromatic compound <br \/> 18.9 Bedding <br \/> 18.10 Oversheath  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>Table 10 &#8211; Requirements for non-electrical tests for non-halogenated bedding and oversheath  <\/td>\n<\/tr>\n<tr>\n<td><b>21<b><\/td>\n<td>18.11 Abrasion resistance <br \/> 18.12 Special type tests on completed cable (Type 2 only)  <\/td>\n<\/tr>\n<tr>\n<td><b>22<b><\/td>\n<td>Table 11 &#8211; Special type tests for Type 2 cables <br \/> 18.13 Tests under fire conditions  <\/td>\n<\/tr>\n<tr>\n<td><b>24<b><\/td>\n<td>Annex A (informative) <br \/> Guide to use <br \/> A.1 General <br \/> A.2 Recommendations for selection <br \/> A.2.1 Permissible application <br \/> A.2.2 Maximum permissible voltage <br \/> A.3 Recommendations for storage, transport and disposal <br \/> A.3.1 Storage <br \/> A.3.2 Transport <br \/> A.3.3 Incineration of scrap cable <br \/> A.3.4 Cable end sealing <br \/> A.4 Recommendations for cable laying and installation <br \/> A.4.1 General <br \/> A.4.2 Environmental conditions  <\/td>\n<\/tr>\n<tr>\n<td><b>25<b><\/td>\n<td>A.4.3 Pulling tensions <br \/> A.4.4 Bending radii <br \/> A.4.5 Cable installation  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>LV and MV polymeric insulated cables for use by distribution and generation utilities. Specification for multicore and multipair cables for installation above and below ground &#8211; Single wire or double steel tape armoured and non-halogenated sheathed multipair cable with copper conductors &#8211; Section 8.6 Single wire or double steel tape armoured and non-halogenated sheathed multipair cable with copper conductors<\/b><\/p>\n<table class=\"shortdes-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\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2003<\/td>\n<td>28<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":240852,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[493,2641],"product_tag":[],"class_list":{"0":"post-240847","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\/240847","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\/240852"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=240847"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=240847"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=240847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}