{"id":438829,"date":"2024-10-20T08:05:38","date_gmt":"2024-10-20T08:05:38","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60728-112023-2\/"},"modified":"2024-10-26T15:10:02","modified_gmt":"2024-10-26T15:10:02","slug":"bs-en-iec-60728-112023-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60728-112023-2\/","title":{"rendered":"BS EN IEC 60728-11:2023"},"content":{"rendered":"

This part of IEC 60728 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. Additional requirements may be applied, for example, referring to: \u2022 electrical installations of buildings and overhead lines, \u2022 other telecommunication services distribution systems, \u2022 water distribution systems, \u2022 gas distribution systems, \u2022 lightning systems. This document is intended to provide requirements specifically for the safety of the system, personnel working on it, subscribers and subscriber equipment. It deals only with safety aspects and is not intended to define a standard for the protection of the equipment used in the system.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
5<\/td>\nAnnex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
7<\/td>\nAnnex ZB (informative)A-deviations <\/td>\n<\/tr>\n
8<\/td>\nAnnex ZC (normative)Special national conditions <\/td>\n<\/tr>\n
16<\/td>\nBlank Page <\/td>\n<\/tr>\n
17<\/td>\nCONTENTS <\/td>\n<\/tr>\n
21<\/td>\nFOREWORD <\/td>\n<\/tr>\n
23<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
24<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
25<\/td>\n3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions <\/td>\n<\/tr>\n
33<\/td>\n3.2 Symbols
3.3 Abbreviated terms <\/td>\n<\/tr>\n
34<\/td>\n4 Fundamental requirements
4.1 General <\/td>\n<\/tr>\n
35<\/td>\n4.2 Mechanical requirements
4.2.1 General
4.2.2 Equipment design and construction
4.2.3 Accessible parts
4.3 Radiation
4.4 Electromagnetic radiation
4.5 Thermal protection
4.6 Safety in case of fire and fire reaction <\/td>\n<\/tr>\n
36<\/td>\n5 Protection against environmental influences
6 Equipotential bonding and earthing
6.1 General requirements
6.2 Equipotential bonding mechanisms <\/td>\n<\/tr>\n
38<\/td>\nFigures
Figure 1 \u2013 Example of equipotential bonding and earthing of a metal enclosure inside a non-conductive cabinet for outdoor-use <\/td>\n<\/tr>\n
39<\/td>\nFigure 2 \u2013 Example of equipotential bonding of a building installation <\/td>\n<\/tr>\n
40<\/td>\nFigure 3 \u2013 Example of equipotential bonding and indirect earthing of a metal enclosure inside a non-conductive cabinet for outdoor-use <\/td>\n<\/tr>\n
42<\/td>\nFigure 4 \u2013 Example of equipotential bonding and earthingof a building installation (underground connection) <\/td>\n<\/tr>\n
43<\/td>\nFigure 5 \u2013 Example of equipotential bonding and earthing of a building installation (above ground connection) <\/td>\n<\/tr>\n
44<\/td>\nFigure 6 \u2013 Example of equipotential bonding with a galvanic isolated cable entering a building (underground connection) <\/td>\n<\/tr>\n
46<\/td>\nFigure 7 \u2013 Example of maintaining equipotential bonding whilst a unit is removed <\/td>\n<\/tr>\n
47<\/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
48<\/td>\n6.3.5 Measures
7 Mains-supplied equipment <\/td>\n<\/tr>\n
49<\/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
Tables
Table 1 \u2013 Maximum allowed operation voltages and maximum recommended currents for coaxial cables <\/td>\n<\/tr>\n
50<\/td>\n8.2 Remote powering from subscriber premises
9 Segregation distances and protection against indirect contact to electric power distribution systems
9.1 General
9.2 Overhead lines
9.2.1 Overhead lines up to 1 000 V
9.2.2 Overhead lines above 1 000 V
9.3 House installations up to 1 000 V <\/td>\n<\/tr>\n
51<\/td>\n10 System outlets and transfer points
10.1 General
10.2 System outlet
10.2.1 Types of system outlets <\/td>\n<\/tr>\n
52<\/td>\n10.2.2 Fully isolated system outlet
10.2.3 Semi-isolated system outlet
10.2.4 Non-isolated system outlet with protective element
10.2.5 Non-isolated system outlet without protective element
10.2.6 Fully-isolated system outlet provided by means of a FTTH system <\/td>\n<\/tr>\n
54<\/td>\n10.3 Transfer point
Figure 8 \u2013 MDU building installed with FTTH technology <\/td>\n<\/tr>\n
55<\/td>\n11 Protection against atmospheric overvoltages and elimination of potential differences
11.1 General <\/td>\n<\/tr>\n
56<\/td>\n11.2 Protection of the antenna system
11.2.1 Selection of appropriate methods for protection of antenna systems
Figure 9 \u2013 Areas of antenna-mounting in oron buildings, where earthing is not mandatory <\/td>\n<\/tr>\n
57<\/td>\n11.2.2 Building equipped with a lightning protection system (LPS)
Table 2 \u2013 Solutions for protection of antenna systems against atmospheric overvoltage <\/td>\n<\/tr>\n
59<\/td>\nFigure 10 \u2013 Flow chart for selection of the appropriate method for protecting the antenna system against atmospheric overvoltages <\/td>\n<\/tr>\n
60<\/td>\nFigure 11 \u2013 Example of equipotential bonded headends and antennas in a protected volume of the building LPS <\/td>\n<\/tr>\n
61<\/td>\nFigure 12 \u2013 Example of equipotential bonded headends and antennas in a protected volume of an external horizontally isolated ATS <\/td>\n<\/tr>\n
62<\/td>\nFigure 13 \u2013 Example of equipotential bonded headends and antennas in a protected volume of an external vertically isolated ATS <\/td>\n<\/tr>\n
63<\/td>\nFigure 14 \u2013 Example of equipotential bonded antennas (not installed in a protected volume) and headend with direct connection to building LPS <\/td>\n<\/tr>\n
64<\/td>\n11.2.3 Building not equipped with an LPS <\/td>\n<\/tr>\n
66<\/td>\nFigure 15 \u2013 Example of equipotential bonded headendand earthed antennas (building without LPS) <\/td>\n<\/tr>\n
67<\/td>\n11.3 Earthing and bonding of the antenna system
11.3.1 Internal protection system
Figure 16 \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
68<\/td>\n11.3.2 Earthing conductors <\/td>\n<\/tr>\n
70<\/td>\n11.3.3 Earth termination system
Figure 17 \u2013 Example of protecting an antenna system (not installedin a protected volume) by additional bonding conductors (R > RT) <\/td>\n<\/tr>\n
73<\/td>\nFigure 18 \u2013 Examples of earthing mechanisms <\/td>\n<\/tr>\n
74<\/td>\n11.4 Overvoltage protection
Figure 19 \u2013 Example of an overvoltage protective device for single dwelling unit <\/td>\n<\/tr>\n
75<\/td>\n12 Mechanical stability
12.1 General requirements
12.2 Bending moment <\/td>\n<\/tr>\n
76<\/td>\nFigure 20 \u2013 Example of bending moment of an antenna mast <\/td>\n<\/tr>\n
77<\/td>\n12.3 Wind-pressure values
12.4 Mast construction <\/td>\n<\/tr>\n
78<\/td>\n12.5 Data to be published <\/td>\n<\/tr>\n
79<\/td>\nAnnex A (normative) Earth loop impedance
A.1 General
A.2 Earthing for fault conditions <\/td>\n<\/tr>\n
80<\/td>\nA.3 Earthing to protect against hazardous touch voltage
Figure A.1 \u2013 Systematic of earth loop resistance <\/td>\n<\/tr>\n
81<\/td>\nA.4 Temporary safety measures <\/td>\n<\/tr>\n
82<\/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 underground cables
Table B.1 \u2013 Conductivity of different types of soil <\/td>\n<\/tr>\n
83<\/td>\nFigure B.1 \u2013 Principle of single shield wire
Table B.2 \u2013 Protection factors (Kp) of protection measures against direct lightning strokes for buried cables <\/td>\n<\/tr>\n
84<\/td>\nFigure B.2 \u2013 Principle of two shield wires <\/td>\n<\/tr>\n
85<\/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
86<\/td>\nC.3.2 Equipotential bonding mechanism for cable networks
Figure C.1 \u2013 IT power distribution system in Norway <\/td>\n<\/tr>\n
87<\/td>\nFigure C.2 \u2013 Example of installations located farther than 20 m away from a transforming station
Figure C.3 \u2013 Example of installations located closer than 20 m from a transforming station <\/td>\n<\/tr>\n
88<\/td>\nFigure C.4 \u2013 Example of cabinets for cable network with locally fed equipment and mains placed less than 2 m apart <\/td>\n<\/tr>\n
89<\/td>\nFigure C.5 \u2013 Example of cabinets for cable network with remotely fed equipmentand mains placed less than 2 m apart <\/td>\n<\/tr>\n
90<\/td>\nFigure C.6 \u2013 Example of cabinets for cable network with locally fed equipment and mains placed more than 2 m apart <\/td>\n<\/tr>\n
91<\/td>\nC.3.3 Use of galvanic isolation in a cable network with remote power feeding
Figure C.7 \u2013 Example of cabinets for cable network with remotely fed equipment and mains placed more than 2 m apart <\/td>\n<\/tr>\n
92<\/td>\nC.3.4 Use of voltage dependent protective device in a cable network
Figure C.8 \u2013 Example of an installation placing the amplifier in front of the galvanic isolator <\/td>\n<\/tr>\n
93<\/td>\nC.4 Subclause 8.1.1 \u2013 Japan
Figure C.9 \u2013 Example of protection using a voltage dependingdevice on network installations on poles <\/td>\n<\/tr>\n
94<\/td>\nC.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
C.9 Subclause 11.1 \u2013 Japan <\/td>\n<\/tr>\n
95<\/td>\nC.10 Subclause 11.2
C.10.1 Germany
C.10.2 Japan
Figure C.10 \u2013 Example of the installation of a safety terminal in Japan <\/td>\n<\/tr>\n
96<\/td>\nC.11 Subclause 11.3.2 \u2013 Japan
C.12 Subclause 11.3.3 \u2013 Japan
Figure C.11 \u2013 Examples of installation of a lightning protection system in Japan <\/td>\n<\/tr>\n
97<\/td>\nC.13 Subclause 12.2 \u2013 Japan
C.14 Subclause 12.3 \u2013 Finland <\/td>\n<\/tr>\n
98<\/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>\n2023<\/td>\n100<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":438839,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[612,2641],"product_tag":[],"class_list":{"0":"post-438829","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\/438829","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\/438839"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=438829"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=438829"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=438829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}