{"id":228789,"date":"2024-10-19T14:52:42","date_gmt":"2024-10-19T14:52:42","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-60728-112017\/"},"modified":"2024-10-25T08:58:52","modified_gmt":"2024-10-25T08:58:52","slug":"bs-en-60728-112017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-60728-112017\/","title":{"rendered":"BS EN 60728-11:2017"},"content":{"rendered":"

IEC 60728-11:2016 deals with the safety requirements applicable to fixed sited systems and equipment. As far as applicable, it is also valid for mobile and temporarily installed systems, for example, caravans. This fourth edition cancels and replaces the third edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – Correction of minimum cross-section of bonding conductor in Figure 6, Figure 14 and Figure 17. – Creation of new symbols for “overvoltage protective device – (OPD)” and for “coaxial overvoltage protective device – (COPD)”. – Introduction of new OPD symbol to 3.2, Figure 3 and Figure 6. – Introduction of new COPD symbol to 3.2 and Figure 19. – In 3.1 replacement of terms CATV, MATV and SMATV by new terms and definitions due to changes in technology and use of cable networks. – Extension for remote feeding voltage on subscriber feeder. – Adaption to Edition 2.0 of the IEC 62305 series. – Deletion of informative Annex C and normative reference to the simplified software for the calculation of risk due to lightning (Annex J of IEC 62305-2:2006.) – New subclause 10.2.6 Fully-isolated system outlet provided by means of a FTTH system. The contents of the corrigendum of July 2016 have been included in this copy.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
15<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
19<\/td>\nFOREWORD <\/td>\n<\/tr>\n
21<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
22<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
23<\/td>\n3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions <\/td>\n<\/tr>\n
30<\/td>\n3.2 Symbols
3.3 Abbreviations <\/td>\n<\/tr>\n
31<\/td>\n4 Fundamental requirements
4.1 General <\/td>\n<\/tr>\n
32<\/td>\n4.2 Mechanical requirements
4.3 Accessible parts
4.4 Laser radiation
5 Protection against environmental influences
6 Equipotential bonding and earthing
6.1 General requirements
6.2 Equipotential bonding mechanisms <\/td>\n<\/tr>\n
34<\/td>\nFigures
Figure\u00a01 \u2013 Example of equipotential bonding and earthing of a metal enclosure inside a non-conductive cabinet for outdoor-use <\/td>\n<\/tr>\n
35<\/td>\nFigure\u00a02 \u2013 Example of equipotential bonding of a building installation <\/td>\n<\/tr>\n
36<\/td>\nFigure\u00a03 \u2013 Example of equipotential bonding and indirect earthing of a metal enclosure inside a non-conductive cabinet for outdoor-use <\/td>\n<\/tr>\n
38<\/td>\nFigure\u00a04 \u2013 Example of equipotential bonding and earthing of a building installation (underground connection) <\/td>\n<\/tr>\n
39<\/td>\nFigure\u00a05 \u2013 Example of equipotential bonding and earthing of a building installation (above ground connection) <\/td>\n<\/tr>\n
40<\/td>\nFigure\u00a06 \u2013 Example of equipotential bonding with a galvanic isolated cable entering a building (underground connection) <\/td>\n<\/tr>\n
42<\/td>\nFigure\u00a07 \u2013 Example of maintaining equipotential bonding whilst a unit is removed <\/td>\n<\/tr>\n
43<\/td>\n6.3 Equipotential bonding in meshed systems
6.3.1 References to other standards
6.3.2 General on AC mains
6.3.3 AC power distribution and connection of the protective conductor
6.3.4 Dangers and malfunction <\/td>\n<\/tr>\n
44<\/td>\n6.3.5 Measures
7 Mains-supplied equipment <\/td>\n<\/tr>\n
45<\/td>\n8 Remote power feeding in cable networks
8.1 Remote power feeding
8.1.1 Maximum allowed voltages
8.1.2 General requirements for equipment
8.1.3 Current-carrying capacity and dielectric strength of the components <\/td>\n<\/tr>\n
46<\/td>\n8.2 Remote powering from subscriber premises
9 Protection against contact and proximity to electric power distribution systems
9.1 General
9.2 Overhead lines
9.2.1 Overhead lines up to 1\u00a0000\u00a0V
Tables
Table\u00a01 \u2013 Maximum allowed operation voltages and maximum recommendedcurrents for coaxial cables in the EN 50117 series <\/td>\n<\/tr>\n
47<\/td>\n9.2.2 Overhead lines above 1\u00a0000\u00a0V
9.3 House installations up to 1\u00a0000\u00a0V
10 System outlets and transfer points
10.1 General <\/td>\n<\/tr>\n
48<\/td>\n10.2 System outlet
10.2.1 Types of system outlets
10.2.2 Fully isolated system outlet
10.2.3 Semi-isolated system outlet
10.2.4 Non-isolated system outlet with protective element <\/td>\n<\/tr>\n
49<\/td>\n10.2.5 Non-isolated system outlet without protective element
10.2.6 Fully-isolated system outlet provided by means of a FTTH system
10.3 Transfer point
Figure\u00a08\u00a0\u2212\u00a0MDU building installed with FTTH technology <\/td>\n<\/tr>\n
50<\/td>\n11 Protection against atmospheric overvoltages and elimination of potential differences
11.1 General <\/td>\n<\/tr>\n
51<\/td>\n11.2 Protection of the antenna system
11.2.1 Selection of appropriate methods for protection of antenna systems
Figure\u00a09 \u2013 Areas of antenna-mounting in or on buildings, where earthing is not mandatory <\/td>\n<\/tr>\n
52<\/td>\n11.2.2 Building equipped with a lightning protection system (LPS)
Table\u00a02\u00a0\u2013\u00a0Solutions for protection of antenna systems against atmospheric overvoltages <\/td>\n<\/tr>\n
54<\/td>\nFigure\u00a010\u00a0\u2013\u00a0Flow chart for selection of the appropriate method for protecting the antenna system against atmospheric overvoltages <\/td>\n<\/tr>\n
56<\/td>\nFigure\u00a011\u00a0\u2013\u00a0Example of equipotential bonded headends and antennas in a protected volume of the building LPS <\/td>\n<\/tr>\n
57<\/td>\nFigure\u00a012\u00a0\u2013\u00a0Example of equipotential bonded headends and antennas in a protected volume of the building LPS <\/td>\n<\/tr>\n
58<\/td>\nFigure\u00a013\u00a0\u2013\u00a0Example of equipotential bonded headends and antennas in a protected volume of an external isolated ATS <\/td>\n<\/tr>\n
59<\/td>\nFigure\u00a014 \u2013 Example of equipotential bonded antennas (not installed in a protected volume) and headend with direct connection to building LPS <\/td>\n<\/tr>\n
60<\/td>\n11.2.3 Building not equipped with an LPS <\/td>\n<\/tr>\n
62<\/td>\nFigure 15 \u2013 Example of equipotential bonded headend and earthed antennas (building without LPS) <\/td>\n<\/tr>\n
63<\/td>\nFigure\u00a016 \u2013 Example of bonding for antennas and headend (building without LPS and lightning risk lower than or equal to the tolerable risk) <\/td>\n<\/tr>\n
64<\/td>\n11.3 Earthing and bonding of the antenna system
11.3.1 Internal protection system
11.3.2 Earthing conductors <\/td>\n<\/tr>\n
66<\/td>\nFigure 17 \u2013 Example of protecting an antenna system (not installed in a protected volume) by additional bonding conductors (R > RT) <\/td>\n<\/tr>\n
67<\/td>\n11.3.3 Earth termination system <\/td>\n<\/tr>\n
69<\/td>\n11.4 Overvoltage protection
Figure\u00a018 \u2013 Examples of earthing mechanisms (minimum dimensions) <\/td>\n<\/tr>\n
70<\/td>\n12 Mechanical stability
12.1 General requirements
Figure\u00a019 \u2013 Example of an overvoltage protective device for single dwelling unit <\/td>\n<\/tr>\n
71<\/td>\n12.2 Bending moment
Figure\u00a020 \u2013 Example of bending moment of an antenna mast <\/td>\n<\/tr>\n
72<\/td>\n12.3 Wind-pressure values
12.4 Mast construction
12.5 Data to be published <\/td>\n<\/tr>\n
74<\/td>\nAnnex A (informative) Earth loop impedance
A.1 General
A.2 Earthing for fault conditions <\/td>\n<\/tr>\n
75<\/td>\nA.3 Earthing to protect against hazardous touch voltage
Figure\u00a0A.1\u00a0\u2013\u00a0Systematic of earth loop resistance <\/td>\n<\/tr>\n
76<\/td>\nA.4 Temporary safety measures <\/td>\n<\/tr>\n
77<\/td>\nAnnex B (informative) Use of shield wires to protect installations with coaxial cables
B.1 General
B.2 Soil quality determines shield-wiring necessity
B.3 Protective measures against direct lightning strikes on under ground cables
Table\u00a0B.1 \u2013 Conductivity of different types of soil <\/td>\n<\/tr>\n
78<\/td>\nFigure B.1 \u2013 Principle of single shield wire
Table\u00a0B.2 \u2013 Protection factors (Kp) of protection measuresagainst direct lightning strokes for buried cables <\/td>\n<\/tr>\n
79<\/td>\nFigure\u00a0B.2 \u2013 Principle of two shield wires <\/td>\n<\/tr>\n
80<\/td>\nAnnex C (informative) Differences in some countries
C.1 Subclause 6.1
C.1.1 France
C.1.2 Japan
C.2 Subclause 6.2
C.2.1 France
C.2.2 Norway
C.2.3 Japan and Poland
C.3 Subclause 6.3 \u2013 Norway
C.3.1 Justification <\/td>\n<\/tr>\n
81<\/td>\nC.3.2 Equipotential bonding mechanism for cable networks
Figure\u00a0C.1 \u2013\u00a0IT power distribution system in Norway <\/td>\n<\/tr>\n
82<\/td>\nFigure\u00a0C.2\u00a0\u2013\u00a0Example of installations located farther than 20\u00a0m away from a transforming station <\/td>\n<\/tr>\n
83<\/td>\nFigure\u00a0C.3\u00a0\u2013\u00a0Example of installations located closer than 20m from a transforming station <\/td>\n<\/tr>\n
84<\/td>\nFigure\u00a0C.4\u00a0\u2013\u00a0Example of cabinets for cable network with locally fed equipment and mains placed less than 2 m apart
Figure\u00a0C.5\u00a0\u2013\u00a0Example of cabinets for cable network with remotely fed equipment and mains placed less than 2 m apart <\/td>\n<\/tr>\n
85<\/td>\nFigure\u00a0C.6\u00a0\u2013\u00a0Example of cabinets for cable network with locally fed equipmentand mains placed more than 2 m apart
Figure C.7 \u2013 Example of cabinets for cable network with remotely fed equipment and mains placed more than 2m apart <\/td>\n<\/tr>\n
86<\/td>\nC.3.3 Use of galvanic isolation in a cable network with remote power-feeding
C.3.4 Use of voltage dependent protective device in a cable network
Figure\u00a0C.8\u00a0\u2013\u00a0Example of an installation placing the amplifier in front of the galvanic isolator <\/td>\n<\/tr>\n
87<\/td>\nFigure C.9 \u2013 Example of protection using a voltage depending device on network installations on poles <\/td>\n<\/tr>\n
88<\/td>\nC.4 Subclause 8.1.1 \u2013 Japan
C.5 Subclause 9.1 \u2013 France
C.6 Subclause 9.2 \u2013 Japan
C.7 Subclause 10.1
C.7.1 Sweden
C.7.2 UK
C.8 Subclause 10.2 \u2013 Japan <\/td>\n<\/tr>\n
89<\/td>\nC.9 Subclause 11.1 \u2013 Japan
C.10 Subclause 11.2
C.10.1 Germany
C.10.2 Japan
Figure\u00a0C.10 \u2013 Example of the installation of a safety terminal in Japan <\/td>\n<\/tr>\n
90<\/td>\nC.11 Subclause 11.3.2 \u2013 Japan
C.12 Subclause 11.3.3 \u2013 Japan
C.13 Subclause 12.2 \u2013 Japan
Figure\u00a0C.11 \u2013 Examples of installation of a lightning protection system in Japan <\/td>\n<\/tr>\n
91<\/td>\nC.14 Subclause 12.3 \u2013 Finland <\/td>\n<\/tr>\n
92<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Cable networks for television signals, sound signals and interactive services – Safety<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2017<\/td>\n94<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":228793,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[612,2641],"product_tag":[],"class_list":{"0":"post-228789","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-060-40","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\/228789","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\/228793"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=228789"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=228789"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=228789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}