?u= Tue, 05 Nov 2024 19:13:07 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.1 ?u=/wp-content/uploads/2024/11/cropped-icon-150x150.png ?u= 32 32 ?u=/product/publishers/iec/iec-61051-12007/ Tue, 05 Nov 2024 19:13:07 +0000 Varistors for use in electronic equipment - Part 1: Generic specification

Published By	Publication Date	Number of Pages
IEC	2007-04-11	74

]]> IEC 61051-1:2007 is applicable to varistors with symmetrical voltage current characteristics for use in electronic equipment. This second edition cancels and replaces the first edition published in 1991 and constitutes a minor revision related to tables, figures and references.

]]> ?u=/product/publishers/iec/iec-61051-12018/ Tue, 05 Nov 2024 19:13:07 +0000 Varistances utilisées dans les équipements électroniques - Partie 1 : Spécification générique

Published By	Publication Date	Number of Pages
IEC	2018-10-28	122

]]> Varistances utilisées dans les équipements électroniques - Partie 1 : Spécification générique

Published By	Publication Date	Number of Pages
IEC	2018-10-28	122

]]> ?u=/product/publishers/aenor/une-en-iec-61051-12018/ Tue, 05 Nov 2024 11:53:53 +0000 Varistors for use in electronic equipment - Part 1: Generic specification

Published By	Publication Date	Number of Pages
AENOR	2019-01-01	66

]]> Varistors for use in electronic equipment - Part 1: Generic specification

Published By	Publication Date	Number of Pages
AENOR	2019-01-01	66

]]> ?u=/product/publishers/aenor/une-en-61051-12008/ Tue, 05 Nov 2024 11:18:52 +0000 Varistors for use in electronic equipment - Part 1: Generic specification

Published By	Publication Date	Number of Pages
AENOR	2009-02-01	40

]]> Varistors for use in electronic equipment - Part 1: Generic specification

Published By	Publication Date	Number of Pages
AENOR	2009-02-01	40

]]> ?u=/product/publishers/bsi/bs-en-iec-60477-12022-tc/ Sun, 20 Oct 2024 05:42:22 +0000 Tracked Changes. Laboratory resistors - Laboratory DC resistors

Published By	Publication Date	Number of Pages
BSI	2022	80

]]> IEC 60477-1:2022 applies to resistors intended for use as laboratory DC resistors (hereinafter referred to as “resistors”) comprising standard resistors, single or multiple resistors of accuracy Classes 0,000 05 to 10 and single or multi-dial resistors of accuracy Classes 0,000 5 to 10. This document does not apply to: 1) resistors which are intended for use solely as permanently mounted circuit components, 2) resistors used on alternating current or on pulsed current, 3) active resistors, 4) series resistors and shunts which are considered as accessories of electrical measuring instruments in the relevant IEC document (examples of these are as follows). IEC 60477-1:2022 cancels and replaces the first edition of IEC 60477 published in 1974, and its Amendment 1:1997. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) extended the resistor accuracy classes; b) deleted the resistor accuracy class expression in parts per million (ppm); c) excluded the active resistor from the scope of this document; d) updated the terms and definitions according to new IEC 60050 series; e) changed the term “resistance decade” to “resistance dial” to cover the multi-dial resistors with other resistance step values; f) updated the intrinsic error to intrinsic uncertainty according to IEC 60359; g) added the limits of relative stability for resistors of classes 0,000 05 to 0,01; h) added the requirements of high voltage resistors; i) updated the safety symbols and requirements according to the new IEC 61010 series; j) updated the insulation resistance requirements of resistors; k) added the requirements of temperature coefficient; l) updated the temperature requirements for transport and storage of resistors.

PDF Catalog

PDF Pages	PDF Title
48	undefined
51	Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
52	Blank Page
53	English CONTENTS
55	FOREWORD
57	1 Scope 2 Normative references 3 Terms and definitions
58	3.1 General terms
60	3.2 Characteristic values
61	3.3 Accuracy class, class index
62	3.4 Influence quantities, reference conditions, nominal range of use
64	3.5 Uncertainty and variations
67	4 Classification and construction 4.1 Classification 4.2 Construction 5 Limits of intrinsic uncertainty 5.1 General
68	5.2 Requirement for multiple resistors 6 Reference conditions Tables Table 1 – Limits of intrinsic relative uncertainty and limits of relative stability
69	7 Permissible variations 7.1 Limits of variation Table 2 – Reference conditions and permissible range of influence quantities
70	7.2 Conditions for the determination of the variations 7.3 Influence of self-heating (power dissipation) Table 3 – Nominal range of use for influence quantities(applicable unless marked otherwise)
71	7.4 Influence of position 8 Further electrical and mechanical requirements 8.1 Electrical safety requirements 8.2 Insulation resistance 8.3 Storage and transport conditions 8.4 Terminal
72	8.5 Provision of temperature measuring facilities 8.6 Guarding and screening requirements 9 Information, markings and symbols 9.1 Information
73	9.2 Markings, symbols and their locations 9.3 Marking relating to the reference conditions and nominal ranges of use
74	Table 4 – Examples of markings for temperature
75	Table 5 – Symbols for marking resistors
76	Annex A (informative)Reference information A.1 Thermoelectric effects (see Clause 6, Note 2) A.2 Reference range and nominal range of use Figures Figure A.1 – Effect of temperature
77	A.3 Example of marking for a single resistor A.4 Example of marking for a five-dial resistor Figure A.2 – Example of marking for a single resistor Figure A.3 – Example of marking for a five-dial resistor
78	Bibliography

]]> ?u=/product/publishers/bsi/bs-en-iec-60477-12022/ Sun, 20 Oct 2024 04:57:26 +0000 Laboratory resistors - Laboratory DC resistors

Published By	Publication Date	Number of Pages
BSI	2022	34

]]> IEC 60477-1:2022 applies to resistors intended for use as laboratory DC resistors (hereinafter referred to as “resistors”) comprising standard resistors, single or multiple resistors of accuracy Classes 0,000 05 to 10 and single or multi-dial resistors of accuracy Classes 0,000 5 to 10. This document does not apply to: 1) resistors which are intended for use solely as permanently mounted circuit components, 2) resistors used on alternating current or on pulsed current, 3) active resistors, 4) series resistors and shunts which are considered as accessories of electrical measuring instruments in the relevant IEC document (examples of these are as follows). IEC 60477-1:2022 cancels and replaces the first edition of IEC 60477 published in 1974, and its Amendment 1:1997. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) extended the resistor accuracy classes; b) deleted the resistor accuracy class expression in parts per million (ppm); c) excluded the active resistor from the scope of this document; d) updated the terms and definitions according to new IEC 60050 series; e) changed the term “resistance decade” to “resistance dial” to cover the multi-dial resistors with other resistance step values; f) updated the intrinsic error to intrinsic uncertainty according to IEC 60359; g) added the limits of relative stability for resistors of classes 0,000 05 to 0,01; h) added the requirements of high voltage resistors; i) updated the safety symbols and requirements according to the new IEC 61010 series; j) updated the insulation resistance requirements of resistors; k) added the requirements of temperature coefficient; l) updated the temperature requirements for transport and storage of resistors.

PDF Catalog

PDF Pages	PDF Title
2	undefined
5	Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
6	Blank Page
7	English CONTENTS
9	FOREWORD
11	1 Scope 2 Normative references 3 Terms and definitions
12	3.1 General terms
14	3.2 Characteristic values
15	3.3 Accuracy class, class index
16	3.4 Influence quantities, reference conditions, nominal range of use
18	3.5 Uncertainty and variations
21	4 Classification and construction 4.1 Classification 4.2 Construction 5 Limits of intrinsic uncertainty 5.1 General
22	5.2 Requirement for multiple resistors 6 Reference conditions Tables Table 1 – Limits of intrinsic relative uncertainty and limits of relative stability
23	7 Permissible variations 7.1 Limits of variation Table 2 – Reference conditions and permissible range of influence quantities
24	7.2 Conditions for the determination of the variations 7.3 Influence of self-heating (power dissipation) Table 3 – Nominal range of use for influence quantities(applicable unless marked otherwise)
25	7.4 Influence of position 8 Further electrical and mechanical requirements 8.1 Electrical safety requirements 8.2 Insulation resistance 8.3 Storage and transport conditions 8.4 Terminal
26	8.5 Provision of temperature measuring facilities 8.6 Guarding and screening requirements 9 Information, markings and symbols 9.1 Information
27	9.2 Markings, symbols and their locations 9.3 Marking relating to the reference conditions and nominal ranges of use
28	Table 4 – Examples of markings for temperature
29	Table 5 – Symbols for marking resistors
30	Annex A (informative)Reference information A.1 Thermoelectric effects (see Clause 6, Note 2) A.2 Reference range and nominal range of use Figures Figure A.1 – Effect of temperature
31	A.3 Example of marking for a single resistor A.4 Example of marking for a five-dial resistor Figure A.2 – Example of marking for a single resistor Figure A.3 – Example of marking for a five-dial resistor
32	Bibliography

]]> ?u=/product/publishers/bsi/bsi-20-30395260-dc-2020/ Sun, 20 Oct 2024 01:38:57 +0000 BS EN IEC 60477-2. Laboratory resistors - Part 2. Laboratory a.c. resistors

Published By	Publication Date	Number of Pages
BSI	2020	27

]]> BS EN IEC 60477-2. Laboratory resistors - Part 2. Laboratory a.c. resistors

Published By	Publication Date	Number of Pages
BSI	2020	27

]]> ?u=/product/publishers/bsi/bsi-20-30394777-dc-2020/ Sun, 20 Oct 2024 01:38:54 +0000 BS EN IEC 60477. Laboratory d.c. resistors

Published By	Publication Date	Number of Pages
BSI	2020	28

]]> BS EN IEC 60477. Laboratory d.c. resistors

Published By	Publication Date	Number of Pages
BSI	2020	28

]]> ?u=/product/publishers/bsi/bs-en-60477-21999/ Sat, 19 Oct 2024 16:47:35 +0000 Laboratory resistors - Laboratory a.c. resistors

Published By	Publication Date	Number of Pages
BSI	1999	20

]]> Scope, definitions, resistor characterization, general requirements, permissible variations, electrical and mechanical requirements, markings and symbols. Appendices give examples of markings, general considerations and equivalent circuits.

]]> ?u=/product/publishers/bsi/bs-en-604771999/ Sat, 19 Oct 2024 16:47:34 +0000 Laboratory d.c. resistors

Published By	Publication Date	Number of Pages
BSI	1977	20

]]> Resistors of accuracy classes which, in the case of single or multiple resistors is 0.0005-0.2 and for single or multi-decade resistors is 0.0005-5. Specifies the limits of intrinsic error and conditions for determination of such errors, permissible variations and further electrical and mechanical requirements.

]]>