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BS EN IEC 61897:2020 架空线路风振减振器的要求和测试

What is BS EN IEC 61897 about? BS EN IEC 61897 discusses about aeolian vibration dampers for overhead lines which enables prevention of conduction fatigue due to wind vibration. BS EN IEC 61897 applies to eolian vibration dampers intended for single conductors or earth wires or conductor bundles where dampers are directly attached to each sub conductor. BS EN IEC 61897 specifies the requirements for cables different from those mentioned above (e.g., optical ground wires (OPGW), all dielectric self-supporting optical cables (ADSS)). Throughout BS EN IEC 61897,

Overhead lines. Requirements and tests for Aeolian vibration dampers

ICS: 29.240.20
CCS
发布: 2020-04-30
实施: 2020-04-30

BS EN IEC 61854:2020 架空线路垫片的要求和测试

What is BS EN IEC 61854 about?   BS EN IEC 61854 discusses about overhead line requirements and tests for spacers which enables stability and operability of overhead lines during chaotic weather conditions. BS EN IEC 61854 applies to spacers for conductors bundles of overhead line. BS EN IEC 61854 covers rigid spacers, flexible spacers and spacer dampers. BS EN IEC 61854 covers the line design practices and spacers most commonly used at the time of writing. Note : BS EN IEC 61854 does not apply to interphase spacers, hoop spacers and bonding spacers. Who is BS EN IEC 61854 for? BS EN IEC 61854 on overhead lines for spacers is useful for:

Overhead lines. Requirements and tests for spacers

ICS: 29.240.20
CCS
发布: 2020-04-30
实施: 2020-04-30

EN IEC 61897:2020 架空线路 Aeolian 减振器的要求和测试

IEC 61897:2020 is available as IEC 61897:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 61897:2020 applies to aeolian vibration dampers intended for single conductors or earth wires or conductor bundles where dampers are directly attached to each subconductor. The purchaser may adopt part(s) of this document when specifying requirements for cables different from those mentioned above (e.g. optical ground wires (OPGW), all dielectric self-supporting optical cables (ADSS)). In some cases, test procedures and test values are left to agreement between the purchaser and the supplier and are stated in the procurement contract. Annex A lists the minimum technical details to be agreed between purchaser and supplier. Throughout this document, the word “conductor” is used when the test applies to dampers for conductors or earth wires. This second edition cancels and replaces the first edition published in 1998. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Consider, in addition to Stockbridge type aeolian vibration dampers, also spiral aeolian vibration dampers and elastomeric aeolian vibration dampers. b) Consider the application of dampers on high temperature conductors, specifying additional high temperature tests in clamp slip tests. c) Simplify the procedure of the damper effectiveness evaluation. d) Introduce test at low temperature on fastener components such as break away bolts and conical spring washers. e) Include figures showing the test arrangements for the main mechanical tests. Key words: Overhead Lines, Aeolian Vibration Dampers

Overhead lines - Requirements and tests for Aeolian vibration dampers

ICS: 29.240.20
CCS
发布: 2020-04-17
实施: 2020-07-07 (7)

EN IEC 61854:2020 架空线垫片的要求和测试

IEC 61854:2020 is available as IEC 61854:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61854:2020 applies to spacers for conductor bundles of overhead lines. It covers rigid spacers, flexible spacers and spacer dampers. It does not apply to interphase spacers, hoop spacers and bonding spacers. This document is written to cover the line design practices and spacers most commonly used at the time of writing. There may be other spacers available for which the specific tests reported in this document may not be applicable. In some cases, test procedures and test values are left to agreement between purchaser and supplier and are stated in the procurement contract. The purchaser is best able to evaluate the intended service conditions, which should be the basis for establishing the test severity. In Annex A, the minimum technical details to be agreed between purchaser and supplier are listed. This second edition cancels and replaces the first edition published in 1998. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Consider the application of spacers on high temperature conductors specifying additional high temperature tests in clamp slip tests and for the characterization of elastic and damping properties; b) Specify as far as possible test parameters and acceptance values; c) Avoid as far as possible the alternative procedures for the same test; d) Introduce a simpler test device for the simulated short circuit current test; e) Introduce test at low temperature on fastener components such as break away bolts and conical spring washers; f) Prescribe a different procedure for subspan oscillation tests on spacers equipped with clamps having rod attachments; g) Modify the test procedure for the aeolian vibration tests; h) Prescribe a different procedure for aeolian vibration tests on spacers equipped with clamps having rod attachments; i) Re-edit all the figures in order to make them more clear and homogeneous; j) Introduce an additional test device for the simulated short circuit current test. Key words: Overhead Lines, Spacers

Overhead lines - Requirements and tests for spacers

ICS: 29.240.20
CCS
发布: 2020-04-17
实施: 2020-06-24 (7)

IEC 61897:2020 架空线路风振减振器的要求和试验

Overhead lines - Requirements and tests for Aeolian vibration dampers

ICS: 29.240.20
CCS
发布: 2020-03-03
实施

IEC 61897:2020 RLV 架空线路.风振减振器的要求和试验

Overhead lines - Requirements and tests for Aeolian vibration dampers

ICS: 29.240.20
CCS
发布: 2020-03-03
实施

IEC 61854:2020 架空线路.垫片的要求和试验

Overhead lines - Requirements and tests for spacers

ICS: 29.240.20
CCS
发布: 2020-02-18
实施

IEC 61854:2020 RLV 架空线路.垫片的要求和试验

Overhead lines - Requirements and tests for spacers

ICS: 29.240.20
CCS
发布: 2020-02-18
实施

ASTM F2321-14(2020) 柔性和刚性绝缘临时旁路跳线的标准规范

1.1 These specifications cover the manufacture and testing of flexible insulated temporary By-Pass jumpers (By-Pass jumpers) used on energized power lines and equipment. 1.2 It is common practice for the user of this protective equipment to prepare complete instructions and safety regulations to govern in detail the correct and safe use of such equipment. Also see 4.2. 1.3 The use and maintenance of this equipment are beyond the scope of these specifications. 1.4 These specifications for a system of By-Pass jumpers is covered in four parts as follows: Title Sections Clamps for By-Pass Jumpers 5 – 17 Ferrules for By-Pass Jumpers 18 – 31 Cable for By-Pass Jumpers 32 – 40 By-Pass Jumpers (complete assembly with clamps, ferrules, and cable) 41 – 55 1.5 Each of the four parts is an entity of itself, but is listed as a part of the system for completeness and clarification. 1.6 The values stated in SI units are to be regarded as the standard. See IEEE/ASTM SI 10. 1.7 The following precautionary caveat pertains only to the test method portions, Sections 13, 26, 48, and 55 of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Specification for Flexible and Rigid Insulated Temporary By-Pass Jumpers

ICS: 29.240.20
CCS
发布: 2020-02-15
实施

ASTM B263/B263M-14(2020) 用于确定绞合导体横截面积的标准测试方法

1.1 This test method covers the procedure for determining the cross-sectional area of stranded conductors by the mass method. 1.2 The values stated in inch-pound or SI units are to be regarded separately as the standard. The values in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Method for Determination of Cross-Sectional Area of Stranded Conductors