29.240.20 标准查询与下载



共找到 895 条与 相关的标准,共 60

This part of IEC 63042 provides common rules for the design of overhead transmission lines with the highest voltages of AC transmission systems exceeding 800 kV, so as to provide safety and proper functioning for the intended use. This technical specification aims to give the mai

UHV AC transmission systems - Part 202: UHV AC Transmission line design

ICS
29.240.20
CCS
发布
2021-10-01
实施

本标准内容主要涉及到直升机悬吊法带电检修作业的一般要求、 作业流程、作业前准备、工作许可、起飞检查、吊篮/人员吊挂、 吊篮 (吊索)进入工作位置、开展检修科目、吊篮(吊索)退出工作位置、工作终结、安全应急措施等内容 。本标准共 16 章,标准的主要结构和内容如下: 第1章为范围,规定了本规范适用范围。 第2章为规范性引用标准及文件。 第3章为术语和定义。 第4章规范了作业的一般要求 第5章规范了作业的主要流程。 第6章规范了作业前准备的各项内容。 第7章规范了作业准备的各项内容。 第8章规范了工作许可的各项内容。 第9章规范了吊篮/人员吊挂的各项内容。 第10章规范了飞临作业点的各项内容。 第11章规范了投放至作业位置的各项内容。 第12章规范了开展检修作业的各项内容。 第13章规范了退出工作位置的各项内容。 第14章规范了直升机返回起降点的各项内容。 第15章规范了工作结束的各项内容。 第16章规范了安全应急措施的各项内容。 附录A为资料性附录,检修科目明细表。 附录B为资料性附录,直升机悬吊法带电作业示意图。 附录C为规范性附录,特高压交直流线路导地线排列形式及电位进入方式。 附录D为规范性附录,作业手势示意图。

Technical guide for helicopter live working with suspension method on overhead transmission line

ICS
29.240.20
CCS
C382
发布
2021-09-28
实施
2021-11-23

针对输电线路工程接地体应用现状,结合软体石墨接地装置独有的施工特性,重点对连接工艺、不同地形、土壤电阻率条件下的施工方法等提出了要求。 (1)针对软体石墨接地装置提出了具有创新意义的、便捷的连接方式:简 单搭接,只需保证软体石墨接地装置之间充分贴合,同时使用石墨线束或金属丝 缠绕固定即可,无需设计复杂的端口连接结构,不需要再搬运焊机等笨重设备, 大大缩短了安装施工时间,减轻了施工人员的劳动强度。在山区等恶劣地形条件 下施工,软体石墨接地装置的施工特性、技术经济特性更加突出。 (2)根据软体石墨接地装置的使用量计算方公式,提出了针对不同土壤电 阻率的施工设计方法,以土壤电阻率这个指标为依据,共分为四种设计方法,施 工针对性强。如遇到土壤电阻率很高的情况下,还可以将软体石墨接地装置作为 接地模块使用,进一步降低接地电阻,施工拓展性广。 (3)软体石墨接地装置抗拉强度高,“绳”状的特殊结构和一定的柔韧性,使其克服了某些接地体弯曲性弱、延展性差的特点,可以针对山区等特殊地形进 行多样化的埋设方案(弯曲型等多样化沟槽),更贴近施工现场实际情况,施工 灵活性大。 (4)软体石墨接地装置与铁塔之间的连接采用专用连接板,不仅不需要焊 接,也规避了稳定性差、连接不稳固等不利因素。连接板的导杆长度可根据实际 需要进行选择,焊接组装完成后带入施工现场,连接时仅需调节紧固件的松紧程 度便可完成连接,提高了接地施工效率。

Standard procedures of flexible graphite ground electrode in transmission lines

ICS
29.240.20
CCS
C383
发布
2021-09-28
实施
2021-11-23

Overhead line structures. Loading tests

ICS
29.240.20
CCS
F21
发布
2021-09-24
实施
2021-09-24

Overhead line structures – Loading tests

ICS
29.240.20
CCS
发布
2021-09-23
实施
2021-09-23

Distribution automation using distribution line carrier systems-Part 4-32:Data communication protocols-Data link layer-Logical link control(LLC)

ICS
29.240.20
CCS
发布
20210917
实施
20210917

IEC 60652:2021 is available as IEC 60652:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60652:2021 specifies the methods and procedures of testing supports for overhead lines. It applies to the testing of supports and structures of overhead lines. There is no restriction on the type of material used in the fabrication of the supports which may include, but not be limited to, metallic alloys, concrete, timber, laminated wood and composite materials. If required by the client, this document can also be applied to the testing of telecommunication supports, railway/tramway overhead electrification supports, electrical substation gantries, street lighting columns, wind turbine towers, ski-lift supports, etc. Tests on reduced scale models of supports are not covered by this document. This third edition cancels and replaces the second edition published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Title modified; b) Added reference to CIGRE Brochure 399; c) In Clause 7, added test limitation for wind speed and direction during testing; d) In paragraph 10.5, added load increments for destruction tests; e) In paragraph 10.7, added a requirement for an agreement between client and testing station when testing supports made of creep-sensitive materials; f) In Clause 17, added requirements for sampling procedure to be provided in the test report.

Overhead line structures - Loading tests

ICS
29.240.20
CCS
发布
2021-09-17
实施
2021-12-03 (7)

Covered conductors for overhead lines and the related accessories for rated voltages above 1 kV a.c. and not exceeding 36 kV a.c. - Part 3: Guide to use (english version)

ICS
29.240.20
CCS
发布
2021-09-15
实施
2021-09-15

Amendment 3 - International Electrotechnical Vocabulary (IEV) - Part 466: Overhead lines

ICS
29.240.20
CCS
发布
2021-09-03
实施

Overhead electrical conductors. Calculation methods for stranded bare conductors

ICS
29.240.20
CCS
发布
2021-07-30
实施
2021-07-30

Overhead line structures - Loading tests

ICS
29.240.20
CCS
发布
2021-07-30
实施

Overhead electrical conductors – Calculation methods for stranded bare conductors

ICS
29.240.20
CCS
发布
2021-07-06
实施
2021-07-06

This document specifies the methods and procedures of testing supports for overhead lines. It applies to the testing of supports and structures of overhead lines. There is no restriction on the type of material used in the fabrication of the supports which may include, but not be

Overhead line structures - Loading tests

ICS
29.240.20
CCS
F21
发布
2021-07-01
实施

NEW! IEC 60826:2017 is available as IEC 60826:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60826:2017: specifies the loading and strength requirements of overhead lines derived from reliability-based design principles. These requirements apply to lines 45 kV and above, but can also be applied to lines with a lower nominal voltage. This document also provides a framework for the preparation of national standards dealing with overhead transmission lines, using reliability concepts and employing probabilistic or semi-probabilistic methods. These national standards will need to establish the local climatic data for the use and application of this standard, in addition to other data that are country- specific. Although the design criteria in this standard apply to new lines, many concepts can be used to address the design and reliability requirements for refurbishment, upgrading and uprating of existing lines. This document does not cover the detailed design of line components such as supports, foundations, conductors or insulators strings. This fourth edition cancels and replaces the third edition published in 2003. It constitutes a technical revision. The main technical changes with regard to the previous edition are as follows: This standard has been further simplified by removing many informative annexes and theoretical details that can now be found in CIGRE Technical Brochure 178 and referred to as needed in the text of the standard. Many revisions have also been made that reflect the users experience in the application of this standard, together with information about amplification of wind speed due to escarpments. The annexes dealing with icing data have also been updated using new work by CIGRE. Key words: Overhead lines, Overhead transmission lines, reliability, energy

Design criteria of overhead transmission lines

ICS
29.240.20
CCS
发布
2021-07-01
实施

High-voltage switchgear and controlgear - Part 215: Phase comparator used with VDIS

ICS
29.240.20
CCS
发布
2021-06-29
实施

本文件规定了输电线路气象监测装置(简称监测装置)的监测参数与装置组成、功能要求、技术要求、试验方法、检验规则、标志、包装、运输与贮存。 本文件适用于 110(66)kV 及以上电压等级交流和直流输电线路气象监测装置,其他电压等级的输电线路气象监测装置可参照执行。

Technical specifications for meteorological monitoring devices for transmission lines

ICS
29.240.20
CCS
D4420
发布
2021-06-29
实施
2022-07-02

本文件规定了架空输电线路巡检影像标注的总体原则、标注要求、标注信息记录和资料管理等要求。 本文件适用于架空输电线路无人机巡检、直升机巡检、人工巡检、通道监拍等方式获取的可见光、红外巡检影像的标注,配电线路巡检影像标注可参照使用。

Specifications for image labeling for inspection of overhead transmission lines

ICS
29.240.20
CCS
D4420
发布
2021-06-29
实施
2022-07-02

1.0.1 本部分规定了变电站(换流站)工程(以下简称工程)三维设计中对各专业设计范围和深度的要求。 1.0.2 本部分适用于110(66)kV 及以上工程初步设计、施工图设计和竣工图编制阶段的三维设计。 1.0.3 工程三维设计应满足国家、行业现行规程、规范要求,成果的保存和使用应符合相关信息安全要求。

Application scope and depth regulations of 3D design for power transmission and transformation projects Part 1: Substation (converter station)

ICS
29.240.20
CCS
D4420
发布
2021-06-29
实施
2022-07-02

1.0.1 为规范输变电工程电缆线路工程的移交,制定本导则。 1.0.2 本导则适用于 35 kV 及以上输变电工程初步设计、施工图设计和竣工图编制的三维设计模型移交。 1.0.3 输变电工程三维设计移交应遵守国家相关法律法规及信息安全的相关规定。 1.0.4 输变电工程三维设计移交技术,除应按本导则规定执行外,尚应符合国家及电力行业现行有关技术标准的规定。

Technical guidelines for digital transfer of cable line engineering

ICS
29.240.20
CCS
D4420
发布
2021-06-29
实施
2022-07-02

1.0.1 为规范架空线路三维设计模型建模方法、几何细度和属性细度,制定本部分。 1.0.2 本部分适用于 35 kV 及以上架空线路初步设计、施工图设计和竣工图编制的三维设计模型建立。 1.0.3 架空线路三维设计模型建模应符合相关国家法律法规及信息安全的规定。 1.0.4 架空线路三维设计建模除应符合本部分外,尚应符合国家现行有关标准的规定。

Specifications for 3D Design and Modeling of Power Transmission and Transformation Engineering Part 2: Overhead Lines

ICS
29.240.20
CCS
D4420
发布
2021-06-29
实施
2022-07-02



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