{"id":418082,"date":"2024-10-20T06:19:16","date_gmt":"2024-10-20T06:19:16","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60216-62022\/"},"modified":"2024-10-26T11:47:23","modified_gmt":"2024-10-26T11:47:23","slug":"bs-en-iec-60216-62022","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60216-62022\/","title":{"rendered":"BS EN IEC 60216-6:2022"},"content":{"rendered":"

This part of IEC 60216 specifies the experimental and calculation procedures for deriving the thermal endurance characteristics, temperature index (TI) and relative temperature index (RTI) of an electrical insulating material (EIM) using the “fixed time frame method (FTFM)”. In this protocol, the ageing takes place for a small number of fixed times, using the appropriate number of ageing temperatures throughout each time, the properties of the specimens being measured at the end of the relevant time interval. This differs from the procedure of IEC 60216-1, where ageing is conducted at a small number of fixed temperatures, property measurement taking place after ageing times dependent on the progress of ageing. The diagnostic tests employed in the fixed time frame method are restricted to destructive tests. The method has not yet been applied to non-destructive or proof test procedures. Both the TI and the RTI determined according to the FTFM protocol are derived from experimental data obtained in accordance with the instructions of IEC 60216-1 and IEC 60216-2 as modified in this part of IEC 60216. The calculation procedures and statistical tests are modified from those of IEC 60216-3 and IEC 60216-5.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
7<\/td>\nAnnex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
9<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
12<\/td>\nFOREWORD <\/td>\n<\/tr>\n
14<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
15<\/td>\n3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions <\/td>\n<\/tr>\n
18<\/td>\n3.2 Symbols and abbreviated terms <\/td>\n<\/tr>\n
19<\/td>\n4 FTFM protocol
4.1 Principles of FTFM protocol
4.2 Objective of FTFM protocol <\/td>\n<\/tr>\n
20<\/td>\n5 TI determination
5.1 Ageing procedures
5.2 Ageing times and temperatures
5.3 Test specimens
5.3.1 Preparation <\/td>\n<\/tr>\n
21<\/td>\n5.3.2 Number of specimens
5.4 Diagnostic tests <\/td>\n<\/tr>\n
22<\/td>\n5.5 Selection of end-points
5.6 Establishment of initial property value
5.7 Ageing conditions
5.7.1 Ageing ovens
5.7.2 Environmental conditions <\/td>\n<\/tr>\n
23<\/td>\n5.7.3 Conditions for property measurement
5.8 Procedure for ageing
6 Calculation procedures
6.1 General principles
6.1.1 Thermal endurance calculation <\/td>\n<\/tr>\n
24<\/td>\n6.1.2 Property value \u2013 equivalent temperature transform(Calculation of hypothetical ageing temperature derived from the value of a property)
6.2 Precision of calculations
6.3 Derivation of temperatures equivalent to property values
6.3.1 General
6.3.2 Preliminary calculations <\/td>\n<\/tr>\n
25<\/td>\n6.3.3 Regression calculations (property on temperature) <\/td>\n<\/tr>\n
27<\/td>\n6.3.4 Linearity test <\/td>\n<\/tr>\n
28<\/td>\n6.3.5 Estimation of end-point temperatures equivalent to property values
6.4 Regression analysis (temperature on time)
6.4.1 General
6.4.2 Group means and variances
6.4.3 General means and variances <\/td>\n<\/tr>\n
29<\/td>\n6.4.4 Regression <\/td>\n<\/tr>\n
30<\/td>\n6.5 Statistical tests
6.5.1 Variance equality test <\/td>\n<\/tr>\n
31<\/td>\n6.5.2 Linearity test (F-test)
6.5.3 Estimates of x and y and their confidence limits <\/td>\n<\/tr>\n
33<\/td>\n6.6 Thermal endurance graph
7 Calculation and requirements for results
7.1 Calculation of thermal endurance characteristics <\/td>\n<\/tr>\n
34<\/td>\n7.2 Reporting of results
7.2.1 Summary of statistical tests and reporting
7.2.2 Report format
8 Report <\/td>\n<\/tr>\n
35<\/td>\n9 RTI determination
10 Additional symbols <\/td>\n<\/tr>\n
36<\/td>\n11 Experimental procedures
11.1 Selection of reference EIM
11.2 Selection of diagnostic test for extent of ageing
11.3 Ageing procedures
12 Calculation procedures
12.1 General principles
12.2 Input data <\/td>\n<\/tr>\n
37<\/td>\n12.3 RTI
Tables
Table 1 \u2013 Intermediate data values <\/td>\n<\/tr>\n
38<\/td>\n12.4 Confidence limits <\/td>\n<\/tr>\n
39<\/td>\n12.5 Extrapolation <\/td>\n<\/tr>\n
40<\/td>\n13 Results and report
13.1 Results of statistical and numerical tests
13.2 Result
13.3 Report <\/td>\n<\/tr>\n
41<\/td>\nAnnexes
Annex A (normative) Decision flow chart <\/td>\n<\/tr>\n
42<\/td>\nFigures
Figure A.1 \u2013 Decision flow chart <\/td>\n<\/tr>\n
43<\/td>\nAnnex B (normative) Decision table
Table B.1 \u2013 Decision table <\/td>\n<\/tr>\n
44<\/td>\nAnnex C (informative) Statistical tables
Table C.1 \u2013 \u03c7 2-function
Table C.2 \u2013 t-function <\/td>\n<\/tr>\n
45<\/td>\nTable C.3 \u2013 F-function, P = 0,05 <\/td>\n<\/tr>\n
46<\/td>\nTable C.4 \u2013 F-function, P = 0,005 <\/td>\n<\/tr>\n
48<\/td>\nAnnex D (informative) Suggested ageing times and temperatures
D.1 TI determination
D.1.1 Correlation time (TI) = 20 000 h
D.1.2 Other correlation times for TI calculation (see 12.3)
Table D.1 \u2013 Ageing temperatures and times <\/td>\n<\/tr>\n
49<\/td>\nD.2 RTI determination <\/td>\n<\/tr>\n
50<\/td>\nAnnex E (informative) Figures
Figure E.1 \u2013 Property-temperature graph with regression line
Figure E.2 \u2013 Thermal endurance graph <\/td>\n<\/tr>\n
51<\/td>\nFigure E.3 \u2013 Ageing times and temperatures in relation to thermal endurance graph
Figure E.4 \u2013 Ageing times and temperatures in relation to thermal endurance graph <\/td>\n<\/tr>\n
52<\/td>\nFigure E.5 \u2013 Ageing times and temperatures in relation to thermal endurance graph <\/td>\n<\/tr>\n
53<\/td>\nAnnex F (normative) Statistical significance of the difference between two regression estimates <\/td>\n<\/tr>\n
54<\/td>\nAnnex G (informative) Computer program
G.1 General
G.1.1 Overview <\/td>\n<\/tr>\n
55<\/td>\nG.1.2 Convenience program execution <\/td>\n<\/tr>\n
56<\/td>\nG.2 Data files
Figure G.1 \u2013 Shortcut property dialog for program launch <\/td>\n<\/tr>\n
57<\/td>\nG.2.1 Content of file Control6.ftd <\/td>\n<\/tr>\n
59<\/td>\nG.2.2 Report <\/td>\n<\/tr>\n
61<\/td>\nG.2.3 Thermal endurance graph
Figure G.2 \u2013 Thermal endurance graph <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Electrical insulating materials. Thermal endurance properties – Determination of thermal endurance indices (TI and RTI) of an insulating material using the fixed time frame method<\/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>\n62<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":418093,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[286,2641],"product_tag":[],"class_list":{"0":"post-418082","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-220-99","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\/418082","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\/418093"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=418082"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=418082"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=418082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}