{"id":233672,"date":"2024-10-19T15:14:12","date_gmt":"2024-10-19T15:14:12","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iec-61156-92016\/"},"modified":"2024-10-25T09:44:40","modified_gmt":"2024-10-25T09:44:40","slug":"bs-iec-61156-92016","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iec-61156-92016\/","title":{"rendered":"BS IEC 61156-9:2016"},"content":{"rendered":"<p>This part of <span class=\"std\"> <span class=\"std-ref\">IEC&nbsp;61156<\/span> <\/span> describes cables primarily intended for the fixed part of channels as defined in <span class=\"std\"> <span class=\"std-ref\">ISO\/IEC&nbsp;11801<\/span> <\/span> and in <span class=\"std\"> <span class=\"std-ref\">ISO\/IEC&nbsp;TR&nbsp;11801\u20119901<\/span> <\/span> which is planned to be included in the next edition of <span class=\"std\"> <span class=\"std-ref\">ISO\/IEC&nbsp;11801\u20111<\/span> <\/span>. It covers overall screened cables with screened (X\/FTP) or unscreened (X\/UTP) pairs, where X stands for F, S or SF, as well as pair-screened cables without overall screen (U\/FTP). The transmission characteristics of these cables are specified up to a frequency of 2&nbsp;000&nbsp;MHz and at a temperature of 20&nbsp;\u00b0C. Two categories of cables are recognised:<\/p>\n<ul>\n<li>\n<p>Category&nbsp;8.1 for use in Class I according to <span class=\"std\"> <span class=\"std-ref\">ISO\/IEC&nbsp;TR&nbsp;11801\u20119901<\/span> <\/span>;<\/p>\n<\/li>\n<li>\n<p>Category&nbsp;8.2 for use in Class II according to <span class=\"std\"> <span class=\"std-ref\">ISO\/IEC&nbsp;TR&nbsp;11801\u20119901<\/span> <\/span>.<\/p>\n<\/li>\n<\/ul>\n<p>These cables are intended to be used for communication channels which use at least four pairs simultaneously.<\/p>\n<p>The cables covered by this International Standard are intended to operate with voltages and currents normally encountered in communication systems. While these cables are not intended to be used in conjunction with low impedance sources, e.g. the electric power supplies of public utility mains, they are intended to be used to support the delivery of low voltage remote powering applications such as IEEE&nbsp;802.3af (Power over Ethernet) or further developments e.g. according to IEEE&nbsp;802.3at or IEEE&nbsp;802.3bt. More information on the capacity to support these applications according to the installation practices is given in <span class=\"std\"> <span class=\"std-ref\">IEC&nbsp;PAS&nbsp;61156\u20111\u20114<\/span> <\/span>, <span class=\"std\"> <span class=\"std-ref\">IEC&nbsp;TR&nbsp;61156\u20111\u20116<\/span> <\/span> and <span class=\"std\"> <span class=\"std-ref\">ISO\/IEC&nbsp;TR&nbsp;29125<\/span> <\/span>.<\/p>\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>4<b><\/td>\n<td>CONTENTS  <\/td>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>FOREWORD  <\/td>\n<\/tr>\n<tr>\n<td><b>8<b><\/td>\n<td>1 Scope <br \/> 2 Normative references  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>3 Terms and definitions <br \/> 4 Installation considerations <br \/> 5 Materials and cable construction <br \/> 6 Characteristics and requirements <br \/> 6.1 General remarks  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>6.2 Electrical characteristics and tests <br \/> 6.2.1 Conductor resistance <br \/> 6.2.2 Resistance unbalance <br \/> 6.2.3 Dielectric strength <br \/> 6.2.4 Insulation resistance <br \/> 6.2.5 Mutual capacitance <br \/> 6.2.6 Capacitance unbalance <br \/> 6.2.7 Transfer impedance <br \/> 6.2.8 Coupling attenuation  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>6.2.9 Current-carrying capacity <br \/> 6.3 Transmission characteristics <br \/> 6.3.1 Velocity of propagation (phase velocity) <br \/> 6.3.2 Phase delay and differential delay (delay skew) <br \/> 6.3.3 Attenuation (\u03b1) <br \/> Tables <br \/> Table 1 \u2013 Coupling attenuation  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>6.3.4 Unbalance attenuation (TCL) <br \/> 6.3.5 Near-end crosstalk (NEXT) <br \/> Table 2 \u2013 Attenuation equation constants <br \/> Table 3 \u2013 TCL requirements <br \/> Table 4 \u2013 ELTCTL requirements  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>6.3.6 Far-end crosstalk (ACR-F) <br \/> 6.3.7 Alien (exogenous) near-end crosstalk (ANEXT) <br \/> Table 5 \u2013 NEXT and PS NEXT requirements <br \/> Table 6 \u2013 ACR-F and PS ACR-F requirements <br \/> Table 7 \u2013 PS ANEXT requirements  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>6.3.8 Alien (exogenous) far-end crosstalk (AFEXT) <br \/> 6.3.9 Alien (exogenous) crosstalk of bundled cables <br \/> 6.3.10 Impedance <br \/> 6.3.11 Return loss (RL) <br \/> Table 8 \u2013 PS AACR-F requirements <br \/> Table 9 \u2013 RL requirements  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>6.4 Mechanical and dimensional characteristics and requirements  <br \/> 6.4.1 Dimensional requirements  <br \/> 6.4.2 Elongation at break of the conductors  <br \/> 6.4.3 Tensile strength of the insulation  <br \/> 6.4.4 Elongation at break of the insulation  <br \/> 6.4.5 Adhesion of the insulation to the conductor  <br \/> 6.4.6 Elongation at break of the sheath  <br \/> 6.4.7 Tensile strength of the sheath  <br \/> 6.4.8 Crush test of the cable  <br \/> 6.4.9 Impact test of the cable  <br \/> 6.4.10 Bending under tension   <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>6.4.11 Repeated bending of the cable  <br \/> 6.4.12 Tensile performance of the cable  <br \/> 6.4.13 Shock-test requirements of the cable  <br \/> 6.4.14 Bump-test requirements of the cable  <br \/> 6.4.15 Vibration-test requirements of a cable  <br \/> 6.5 Environmental characteristics  <br \/> 6.5.1 Shrinkage of insulation  <br \/> 6.5.2 Wrapping test of insulation after thermal ageing  <br \/> 6.5.3 Bending test of insulation at low temperature  <br \/> 6.5.4 Elongation at break of the sheath after ageing  <br \/> 6.5.5 Tensile strength of the sheath after ageing  <br \/> 6.5.6 Sheath pressure test at high temperature  <br \/> 6.5.7 Cold bend test of the cable  <br \/> 6.5.8 Heat shock test   <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>6.5.9 Damp heat steady state  <br \/> 6.5.10 Solar radiation (UV test)  <br \/> 6.5.11 Solvents and contaminating fluids  <br \/> 6.5.12 Salt mist and sulphur dioxide  <br \/> 6.5.13 Water immersion  <br \/> 6.5.14 Hygroscopicity  <br \/> 6.5.15 Wicking  <br \/> 6.5.16 Flame propagation characteristics of a single cable  <br \/> 6.5.17 Flame propagation characteristics of bunched cables  <br \/> 6.5.18 Halogen gas evolution  <br \/> 6.5.19 Smoke generation  <br \/> 6.5.20 Toxic gas emission  <br \/> 6.5.21 Integrated fire test   <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>7 Bundled cables requirements <br \/> 8 Introduction to the blank detail specification  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>Bibliography  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Multicore and symmetrical pair\/quad cables for digital communications &#8211; Cables for channels with transmission characteristics up to 2 GHz. Sectional specification<\/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>2016<\/td>\n<td>22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":233676,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[631,2641],"product_tag":[],"class_list":{"0":"post-233672","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-120-20","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\/233672","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\/233676"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=233672"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=233672"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=233672"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}