29.240.20 标准查询与下载



共找到 898 条与 相关的标准,共 60

本标准适用于发电厂及变电所配电装置中母线引下线与电气设备及电气设备间连接的设备线夹,亦可用于T型线夹引下线的接续。

Terminal clamp

ICS
29.240.20
CCS
K47
发布
1998-12-14
实施
1999-12-01

本标准规定了架空线路的一些重要术语,它涉及架空线路技术的主要范畴。 本标准适用于制定架空线路标准,编写和翻译专业文献、教材及书刊,与架空线路有关的其他领域亦可参照使用。

Electrotechnical terminology--Overhead line

ICS
29.240.20
CCS
K47
发布
1998-08-13
实施
1999-06-01

本标准规定了带电作业提线工具的分类、技术要求、试验方法、检验规则和标志等。 本标准适用于110~500kV带电更换悬垂绝缘子串提线工具。

General specifications for live-line lifting device

ICS
29.240.20
CCS
K47
发布
1995-07-25
实施
1996-08-01

本标准适用于架空电力线路在悬垂线夹中增加导线刚度和导线断股补修的预绞丝。

Preformed armour rods

ICS
29.240.20
CCS
K51
发布
1985-01-23
实施
1985-12-01

本文件是国家标准 GB 50233—2005《110~500kV架空送电线路施工及验收规范》的条文说明

Code for construction and acceptance of 110~500kV overhead transmission line (explanation)

ICS
29.240.20
CCS
P62
发布
实施

[2]Sheet1!F10

Deep regulations for the content of preliminary design of overhead transmission line project

ICS
29.240.20
CCS
P62
发布
2024-05-24
实施
2024-11-24

[2]Sheet1!F11

Deep regulations for design content of overhead power line construction drawings

ICS
29.240.20
CCS
P62
发布
2024-05-24
实施
2024-11-24

[2]Sheet1!F8

Design regulations for 35kV and below AC superconducting power cable lines

ICS
29.240.20
CCS
P62
发布
2024-05-24
实施
2024-11-24

IEC 60909-0:2016 is applicable to the calculation of short-circuit currents in low-voltage three-phase AC systems, and in high-voltage three-phase AC systems, operating at a nominal frequency of 50 Hz or 60 Hz. It establishes a general, practicable and concise procedure leading to results which are generally of acceptable accuracy and deals with the calculation of short-circuit currents in the case of balanced or unbalanced short circuits. This second edition cancels and replaces the first edition published in 2001. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - contribution of windpower station units to the short-circuit current; - contribution of power station units with ful size converters to the short-circuit current; - new document structure. This publication is to be read in conjunction with IEC TR 60909-1:2002, IEC TR 60909-2:2008, IEC 60909-3:2009 and IEC TR 60909-4:2000.

Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents

ICS
29.240.20
CCS
发布
2024-01-31
实施

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
2024-01-31
实施

4.基础施工 4.1章节概述 杆塔埋入地下的部分称为杆塔基础。根据杆塔材料的不同,架空电力线路杆塔基础可分为砼杆基础和铁塔(含窄基塔)和钢管塔基础三大类。本章介绍架空电力线路杆塔基础部分施工及工艺要求、验收要点等内容。 4.2砼杆基础 4.2.1施工流程 4.2.2施工准备 4.2.2.1机械/工器具准备 (1)施工机械设备/工器具进场清单及检验报告、试验报告、安全准用证、规格、型号等相关资料准备齐全并进行报审。 (2)主要机械、设备:发电机、移动配电箱、空压机等。 (3)主要工器具:水准仪、经纬仪、钢卷尺、挖勺、铁钎、锄头、铁铲等。 4.2.2.2施工人员准备 (1)对进场的施工人员(包括分包人员)需进行安全技术培训,经考试合格后报监理、业主项目部备案。特殊工种人员需持证上岗。 (2)按照批准的施工进度计划,统筹安排施工力量,进场的各工种施工人员数量应满足施工需要。 4.2.2.3临时围护等安全措施 施工区应实行封闭管理,应采用安全围栏进行围护、隔离、封闭,坑口应覆盖。夜间应挂警示灯。 4.2.2.4技术、安全、质量要求 (1)完成设计、安全技术交底和施工图会检工作。 (2)完成项目管理实施规划及施工方案的审批工作。 (3)技术、安全、质量交底:每个分项工程必须分级进行施工技术、安全、质量交底。交底内容要充实,具有针对性和指导性,全体参加施工的人员都要参加交底并签名,形成书面交底记录。 4.2.3施工及工艺 4.2.3.1线路复测 (1)10(20)kV配电线路,可使用水准仪、经纬仪、全站仪等测量仪器进行定位复测。测量人员应经培训合格后,持证上岗。 (2)复测时应同时对沿线地下管线和构筑物进行现场勘察,如有地下光缆、管道、电缆、交叉跨越等情况时应及时记录。与设计不符时应及时提出。 (3)在有地下设施的地方开挖时,应事先取得有关管理部门的同意,严禁采用大型机械和冲击工具盲目开挖。 (4)分坑测量前应依据设计提供的数据复核设计给定的杆塔位中心,并应以此作为测量的基准。复测时有下列情况之一时,应查明原因并予以纠正: 1)以两相邻直线为基准,其横线路方向偏差大于50mm。 2)用视距法复测时,顺线路方向两相邻杆塔位中心柱间的距离与设计值的偏差大于设计档距的1%。 3)转角柱的角度值,用方向法复测时对设计值的偏差大于30"。      4.2.3.2基础分坑 (1)分坑前施工人员应熟悉杆塔明细表。首先核对地点、线路方向、桩位、杆号、杆型等是否与杆塔明细表一致,再按照分坑尺寸进行分坑。 (2)基础分坑时,应根据杆塔位中心桩的位置定出必要的、作为施工及质量控制的辅助桩,其测量精度应能满足施工精度的要求。对施工中无法保留的杆塔位中心桩,必须钉立可靠的辅助桩,并对其位置做记录,以便恢复该中心桩复核横(顺)线路方向位移情况。 (3)拉线分坑时,拉线与横担水平夹角、拉线与地平面夹角应符合设计要求。分坑应根据定位的中心桩位,依照规定的尺寸,测量出基础开挖范围,用细白灰在地面上划出白线。为使坑洞明显清楚,同时沿白线内侧暂挖深0.1~0.15m。 4.2.3.3杆坑开挖 (1)在开挖前应对基础周边管线、构筑物情况进行确认,如有地下光缆、管道、电缆等地下设施的地方开挖时,应事先取得有关管理部门的同意,严禁采用大型机械和冲击工具盲目开挖。 (2)基面及基面附近的障碍物清除干净,挖掘土方应自上而下分层进行,不得采用掏空倒挖的施工方法。 (3)不带底盘卡盘的砼杆洞宜采用圆形坑为主。 (4)当埋深小于1.8m时,一次开挖成形。埋深大于1.8m时,宜采用阶梯形,以便于开挖施工人员立足,再继续开挖中心坑。 (5)砼杆基础坑深度应符合设计规定。砼杆埋设深度在设计未作规定时按表所列数值:(m) 杆长 10 12 15 18 埋深 1.7 1.9 2.3 2.8 (6)砼杆基础坑深度符合设计要求,其超深在 100mm~300mm 时,应采用填土或砂、石夯实处理,每层厚度不应超过100mm;遇到泥水坑时,应先清除坑内泥水后再铺石灌浆。当不能以填土或砂、石夯实处理时,其超深部分应按设计要求处理,设计无具体要求时应按铺石灌浆处理。坑深超过规定值 300mm 以上时应采用铺石灌浆处理,铺石灌浆的配合比应符合设计要求。 (7)遇有土质松软、流沙、地下水位较高等情况时,应采取加固杆基措施(如加底盘、卡盘、预制混凝土或浇筑混凝土基础等)。 4.2.3.4接地沟开挖 (1)依据施工图纸规定的接地装置型式进行开挖沟体,沟底应平整无杂物。 (2)开挖接地沟应避开公路、人行通道、地下管道、电缆设施等。遇其他障碍可以绕道,并应尽量减少弯曲,如无法避免时可采用垂直接地方式。 (3)接地沟开挖的长度和深度应符合设计要求并不得有负偏差,接地沟内如有影响接地体与土壤接触的杂物应予以清除。 (4)如有两条及以上接地沟布设时,两接地沟间平行距离不应小于5m。 4.2.3.5拉线坑开挖 (1)拉线基础坑深以拉线基础中心的地面标高为基准。 (2)开挖前要确认拉线盘的埋设深度和方向,应符合设计要求,拉线坑应有滑坡(马道)。 (3)拉线坑的坑底应垂直于拉线方向开挖成斜坡形。 (4)拉线坑深度不应有负偏差。

Construction process specifications for overhead lines of power distribution network

ICS
29.240.20
CCS
E487
发布
2023-12-29
实施
2024-01-01

4 总则 4.1 推进架空输电线路机械化施工,规范规划可研、工程设计阶段索道勘测设计深度,做到索道路径技术进步、经济合理、施工方便、运行安全。。 4.2 索道路径勘测,应积极推广能够加快工程进度和提高勘测工作质量的新技术和新手段。 4.3 索道路径勘测前,应对架空输电线路进行详细的调查分析,合理选择应用索道运输的塔位。 4.4 索道路径勘测应与架空输电线路设计和勘测工作的阶段相适应,一般分为三个阶段:可行性研究阶段、初步设计阶段和施工图设计阶段。 4.5 各阶段的水文气象勘测均应进行现场调查,相关要求应符合DL/T 5076的规定。

Investigation technical guide of aerial material ropeway for overhead transmission line

ICS
29.240.20
CCS
D4420
发布
2023-12-21
实施
2024-01-01

本文件适用于通信线路工程中使用的防腐木电杆产品。

Technical requirements and test methods for anticorrosive wood poles for communications

ICS
29.240.20
CCS
M21
发布
2023-12-20
实施
2024-04-01

本文件规定了采用无人机对架空输变配电线路进行巡检的巡检系统、巡检内容及路径规划、巡检作业流程、巡检作业要求、异常情况处理。

Technical standards for UAV power transmission and distribution inspection

ICS
29.240.20
CCS
D4420
发布
2023-12-08
实施
2023-12-11

标准确立了传统村落中低压配电网建设改造的基本要求,并规定了传统村落中低压配电网的中压配电网、低压配电网、低压户表和通信及自动化建设改造的技术要求,形成具有推广价值的适用于全省传统村落中低压配电网建设改造的首个技术标准。

Technical Guidelines for Construction and Renovation of Medium and Low Voltage Distribution Networks in Traditional Villages

ICS
29.240.20
CCS
D4420
发布
2023-10-31
实施
2023-11-03

本文件规定了输电线路带电作业的一般要求、工具要求、技术要求、注意事项的相关内容。 本文件适用于输电线路带电作业。

Technical requirements for live operations on transmission lines

ICS
29.240.20
CCS
D4420
发布
2023-10-30
实施
2023-11-05

1.1  This specification lists code word names for bare overhead electrical conductors that are recognized in North America. A procedure has been outlined for adding additional code word names to this standard. Code word names have been in existence for many years describing various conductor constructions used in North America, Europe and elsewhere in the world. Their origin is not clearly understood. The historical basis of this standard originates from code word names developed years ago by member utility companies that participated in the US Aluminum Association, Technical Committee. 1.2  The code word names are grouped into tables of like constructions. The code word name construction can be modified with the use of suffix modifiers that identify additional construction variations. For example the type of steel core material used in an ACSR type of conductor may be modified with the letter designation “/GA3” denoting the strength and type of coating for the steel core material. 1.3  The tables provide the applicable ASTM standard for which the conductor construction may be built to. For conductors that are unique to use in Canada, the applicable CSA International standard is referenced. 1.4  The tables include code word names that are referenced in Canadian CSA and European CENELEC standards. The information is believed to be correct however the user of this document is encouraged to consult the applicable CSA or CENELEC standard for confirmation. 1.5  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 Electrical Overhead Conductor Code Word Names

ICS
29.240.20
CCS
发布
2023-10-20
实施

本文件规定了绝缘穿刺线夹的分类及命名、技术要求、试验方法、判定准则、标志、包装、运输和贮存等要求。 本文件适用于额定电压20kV及以下架空线路、桥涵、隧道、矿道、电缆管井绝缘电缆的绝缘穿刺类线夹。

Insulation piercing clamp

ICS
29.240.20
CCS
K47
发布
2023-10-11
实施
2024-04-11

本标准适用于35kV(66kV)重覆冰交流架空输电线路的设计。

Design regulations for 35kV ice-covered overhead transmission lines

ICS
29.240.20
CCS
P62
发布
2023-10-11
实施
2024-04-11

本文件规定了T型线夹的分类及型式、技术要求、试验方法、判定准则及标志、包装、运输和贮存等要求。 本文件适用于架空线路、电厂及变电站配电装置中软母线与引流线T接的T型线夹。

T-shaped clip

ICS
29.240.20
CCS
K47
发布
2023-10-11
实施
2024-04-11



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