{"id":242261,"date":"2024-10-19T15:52:40","date_gmt":"2024-10-19T15:52:40","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-cispr-tr-18-22017\/"},"modified":"2024-10-25T10:44:32","modified_gmt":"2024-10-25T10:44:32","slug":"bsi-pd-cispr-tr-18-22017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-cispr-tr-18-22017\/","title":{"rendered":"BSI PD CISPR\/TR 18-2:2017"},"content":{"rendered":"

CISPR TR 18-2:2017 est disponible sous forme de CISPR TR 18-2:2017 RLV<\/span> qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l’\u00e9dition pr\u00e9c\u00e9dente.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
4<\/td>\nCONTENTS <\/td>\n<\/tr>\n
8<\/td>\nFOREWORD <\/td>\n<\/tr>\n
10<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
12<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
13<\/td>\n3 Terms and definitions
4 Measurements
4.1 Measuring instruments
4.1.1 Response of a standard quasi-peak CISPR measuring receiver to AC generated corona noise <\/td>\n<\/tr>\n
14<\/td>\n4.1.2 Other measuring instruments
4.2 On-site measurements on HV overhead power lines
4.2.1 General
4.2.2 Measurements in the frequency range 0,15\u00a0MHz to 30\u00a0MHz <\/td>\n<\/tr>\n
16<\/td>\n4.2.3 Measurements in the frequency range from 30\u00a0MHz to 300\u00a0MHz <\/td>\n<\/tr>\n
17<\/td>\n4.2.4 Measurements in the frequency range from 300\u00a0MHz to 3\u00a0GHz
4.3 Statistical evaluation of the radio noise level of a line <\/td>\n<\/tr>\n
18<\/td>\nTables
Table 1 \u2013 Number of n sets of the radio noise level measurements and corresponding values for factor k <\/td>\n<\/tr>\n
19<\/td>\n4.4 Additional information to be given in the report
4.5 Measurements on HV equipment in the laboratory
4.5.1 Overview
4.5.2 State of the test object <\/td>\n<\/tr>\n
20<\/td>\n4.5.3 Test area
4.5.4 Atmospheric conditions
4.5.5 Test circuit \u2013 Basic diagram <\/td>\n<\/tr>\n
21<\/td>\n4.5.6 Practical arrangement of the test circuit
4.5.7 Test circuit components <\/td>\n<\/tr>\n
22<\/td>\n4.5.8 Measuring receiver connections <\/td>\n<\/tr>\n
23<\/td>\n4.5.9 Mounting and arrangement of test object
4.5.10 Measurement frequency
4.5.11 Checking of the test circuit <\/td>\n<\/tr>\n
24<\/td>\n4.5.12 Calibration of the test circuit <\/td>\n<\/tr>\n
25<\/td>\n4.5.13 Test procedure <\/td>\n<\/tr>\n
26<\/td>\n4.5.14 Related observations during the test
4.5.15 Data to be given in test report
5 Methods for derivation of limits for HV power systems
5.1 Overview <\/td>\n<\/tr>\n
27<\/td>\n5.2 Significance of CISPR limits for power lines <\/td>\n<\/tr>\n
28<\/td>\n5.3 Technical considerations for derivation of limits for lines
5.3.1 Basic approach
5.3.2 General <\/td>\n<\/tr>\n
29<\/td>\n5.3.3 Minimum broadcast signal levels to be protected
Table 2 \u2013 Minimum usable broadcast signal field strengths in the v.h.f bands according to CCIR <\/td>\n<\/tr>\n
30<\/td>\n5.3.4 Required signal-to-noise ratio <\/td>\n<\/tr>\n
31<\/td>\n5.3.5 Use of data on radio noise compiled during measurements in the field <\/td>\n<\/tr>\n
32<\/td>\n5.3.6 Use of data obtained by prediction of the radio noise from high-voltage overhead power lines <\/td>\n<\/tr>\n
33<\/td>\n5.4 Methods of determining compliance of measured data with limits
5.4.1 Long-term recording
5.4.2 Sampling method <\/td>\n<\/tr>\n
34<\/td>\n5.4.3 Survey methods
5.4.4 Alternative criteria for an acceptable noise level <\/td>\n<\/tr>\n
35<\/td>\n5.5 Examples for derivation of limits in the frequency range below 30\u00a0MHz
5.5.1 Radio reception <\/td>\n<\/tr>\n
37<\/td>\n5.5.2 Television reception, 47\u00a0MHz to 230\u00a0MHz
5.5.3 Digital terrestrial television reception, 470\u00a0MHz to 950\u00a0MHz
5.6 Additional remarks
5.7 Technical considerations for derivation of limits for line equipment and HVAC\u00a0substations
5.7.1 General <\/td>\n<\/tr>\n
38<\/td>\n5.7.2 Current injected by line components and hardware
5.7.3 Current injected by substation equipment <\/td>\n<\/tr>\n
39<\/td>\n5.7.4 Practical derivation of limits in the l.f. and m.f.\u00a0band <\/td>\n<\/tr>\n
40<\/td>\n6 Methods for derivation of limits for the radio noise produced by insulator sets
6.1 General considerations <\/td>\n<\/tr>\n
41<\/td>\n6.2 Insulator types
6.3 Influence of insulator surface conditions
6.3.1 General <\/td>\n<\/tr>\n
42<\/td>\n6.3.2 Clean insulators
6.3.3 Slightly polluted insulators
6.3.4 Polluted insulators <\/td>\n<\/tr>\n
43<\/td>\n6.4 Criteria for setting up radio noise limits for insulators
6.4.1 General
6.4.2 Criterion for insulators to be installed in type A areas
6.4.3 Criterion for insulators to be installed in type B areas <\/td>\n<\/tr>\n
44<\/td>\n6.4.4 Criterion for insulators to be installed in type C areas
6.5 Recommendations <\/td>\n<\/tr>\n
45<\/td>\nTable 3 \u2013 Recommendations for the radio noise voltage limits and for the test methods for insulator sets installed in different areas <\/td>\n<\/tr>\n
46<\/td>\n7 Methods for derivation of limits for the radio noise due to HVDC converter stations and similar installations
7.1 General considerations
7.2 Sources of interference
7.2.1 Mechanism of radio noise generation <\/td>\n<\/tr>\n
48<\/td>\n7.2.2 Influence of station design on radio interference
7.3 Radiated fields from valve halls
7.3.1 Frequency spectra
7.3.2 Lateral attenuation
7.3.3 Reduction of the radio interference due to direct radiation from the valve hall <\/td>\n<\/tr>\n
49<\/td>\n7.4 Conducted interference along the transmission lines
7.4.1 Description of the mechanism and typical longitudinal profiles <\/td>\n<\/tr>\n
50<\/td>\n7.4.2 Reduction of the interference conducted along the transmission lines
7.5 General criteria for stating limits
7.5.1 Overview
7.5.2 Direct radiation
7.5.3 Propagation along the lines <\/td>\n<\/tr>\n
52<\/td>\n8 Figures
Figures
Figure 1 \u2013 Transformation of pulses through a CISPR measuring receiver <\/td>\n<\/tr>\n
53<\/td>\nFigure 2 \u2013 Bursts of corona pulses generated by alternating voltage
Figure 3 \u2013 Example of extrapolation to determine the radio noise field strength reference level of a power line, here at the direct reference distance of 20\u00a0m <\/td>\n<\/tr>\n
54<\/td>\nFigure 4 \u2013 Basic test circuit
Figure 5 \u2013 Standard test circuit <\/td>\n<\/tr>\n
55<\/td>\nFigure 6 \u2013 Connection to the measuring receiver by a coaxial cable
Figure 7 \u2013 Connection to the measuring receiver by a balanced cable
Figure 8 \u2013 Special test circuit <\/td>\n<\/tr>\n
56<\/td>\nFigure 9 \u2013 Arrangement for calibration of the standard test circuit <\/td>\n<\/tr>\n
57<\/td>\nFigure 10 \u2013 Map showing boundaries of zones A, B, and C in regions 1 and 3 <\/td>\n<\/tr>\n
58<\/td>\nFigure 11 \u2013 Illustration of the four basic parameters for a power transmission line <\/td>\n<\/tr>\n
59<\/td>\nFigure 12 \u2013 Example of typical statistical yearly "all-weather" distributions of the radio-noise levels of a bipolar direct current line (—–) and for an alternating current line in a moderate climate (- \u2013 -)
Figure 13 \u2013 Example of radio noise voltage level V, as a function of the relative air humidity R.H., in clean conditions and slightly polluted conditions, of astandard insulator (—–) and a particular type of "low noise" insulator (- \u2013 -) <\/td>\n<\/tr>\n
60<\/td>\nFigure 14 \u2013 Example of frequency spectra of pulses with different rise times, simulating commutation phenomena in mercury valves and in thyristor valves <\/td>\n<\/tr>\n
61<\/td>\nFigure 15 \u2013 Example of frequency spectra of the radio interference recorded outside the hall of a mercury arc valve converter station with and without toroidal filters
Figure 16 \u2013 Example of frequency spectra of the radio interference recorded outside the hall of a thyristor valve converter station for different operating conditions <\/td>\n<\/tr>\n
62<\/td>\nFigure 17 \u2013 Attenuation of the field strength as a function of the distance on a horizontal plane, for different frequencies <\/td>\n<\/tr>\n
63<\/td>\nFigure 18 \u2013 Example of frequency spectrum of the radio interference in the vicinity of a DC line (30 m) at a short distance from the converter station <\/td>\n<\/tr>\n
64<\/td>\nFigure 19 \u2013 Example of frequency spectra of the radio interference in the vicinity of an AC line (20 m) at a short distance from the converter station
Figure 20 \u2013 Frequency spectra of radio interference at 20 m from the electrode line at 1,5 km from the Gotland HVDC link in Sweden with mercury arc groupsor thyristor groups in operation <\/td>\n<\/tr>\n
65<\/td>\nFigure 21 \u2013 Frequency spectra of radio interference at 20 m from the electrode line at 1,5 km and 4,5 km from the Gotland HVDC link in Sweden with mercury arc groups in operation
Figure 22 \u2013 Frequency spectra of the radio interference recorded along a 200 kV DC line, at 20\u00a0m from the conductor, at different distances from the converter station <\/td>\n<\/tr>\n
66<\/td>\nAnnexes
Annex A (informative) Radio interference measuring apparatus differing from the CISPR basic standard instruments <\/td>\n<\/tr>\n
67<\/td>\nAnnex B (normative) List of additional information to be included in the report on the results of measurements on operational lines <\/td>\n<\/tr>\n
68<\/td>\nAnnex C (informative) Minimum radio signal levels to be protected \u2013ITU recommendations
Table C.1 \u2013 Minimum field strength (l.f. and m.f. radio)
Table C.2 \u2013 Nominal usable field strength <\/td>\n<\/tr>\n
69<\/td>\nTable C.3 \u2013 Minimum field strength (h.f. radio) <\/td>\n<\/tr>\n
70<\/td>\nTable C.4 \u2013 Field strength limit (amateur radio) <\/td>\n<\/tr>\n
71<\/td>\nAnnex D (informative) Minimum broadcast signals to be protected \u2013North American standards
Table D.1 \u2013 Signal levels at the edge of the service area in North America <\/td>\n<\/tr>\n
72<\/td>\nAnnex E (informative) Required signal-to-noise ratios for satisfactory reception
Table E.1 \u2013 Summary of signal-to-noise ratios for corona from AC lines (Signal measured with average detector, noise measured with quasi-peak detector) <\/td>\n<\/tr>\n
73<\/td>\nTable E.2 \u2013 Quality of radio reception or degree of annoyance due to RFI <\/td>\n<\/tr>\n
75<\/td>\nAnnex F (informative) Derivation of the equation for the protected distance <\/td>\n<\/tr>\n
76<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Radio interference characteristics of overhead power lines and high-voltage equipment – Part 2: Methods of measurement and procedure for determining limits<\/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>\n80<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":242264,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[624,2641],"product_tag":[],"class_list":{"0":"post-242261","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-100-01","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\/242261","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\/242264"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=242261"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=242261"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=242261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}