標(biāo)準(zhǔn)解讀

《GB/T 25020.1-2025 電氣化鐵路接觸網(wǎng)支柱 第1部分:鋼支柱》是針對(duì)電氣化鐵路中使用的鋼制接觸網(wǎng)支柱制定的標(biāo)準(zhǔn)。該標(biāo)準(zhǔn)詳細(xì)規(guī)定了鋼支柱的設(shè)計(jì)、制造、檢驗(yàn)及試驗(yàn)要求,以確保其在電氣化鐵路系統(tǒng)中的安全性和可靠性。

標(biāo)準(zhǔn)首先明確了適用范圍,即適用于標(biāo)稱(chēng)電壓為交流25kV的單相工頻電氣化鐵路用接觸網(wǎng)系統(tǒng)的鋼支柱。它不僅涵蓋了直立式支柱,還包括斜撐式等不同形式的結(jié)構(gòu)設(shè)計(jì),旨在滿(mǎn)足各種地理環(huán)境和工程需求下的應(yīng)用條件。

對(duì)于材料選擇方面,《GB/T 25020.1-2025》提出了嚴(yán)格的要求,包括但不限于鋼材牌號(hào)的選擇、化學(xué)成分分析以及機(jī)械性能測(cè)試等內(nèi)容,確保所選用材料能夠承受預(yù)期的工作負(fù)荷,并具有良好的耐腐蝕性與抗疲勞特性。

此外,標(biāo)準(zhǔn)還對(duì)生產(chǎn)過(guò)程中的焊接工藝進(jìn)行了規(guī)范,比如焊縫質(zhì)量等級(jí)、無(wú)損檢測(cè)方法等,這些都是保證最終產(chǎn)品質(zhì)量的關(guān)鍵因素之一。同時(shí),也制定了詳細(xì)的尺寸公差要求,從外觀(guān)到內(nèi)部結(jié)構(gòu)都做了明確規(guī)定,以便于控制加工精度,提高安裝效率。

關(guān)于檢驗(yàn)與驗(yàn)收環(huán)節(jié),《GB/T 25020.1-2025》列出了出廠(chǎng)前必須執(zhí)行的各項(xiàng)檢查項(xiàng)目,如外觀(guān)檢查、尺寸測(cè)量、力學(xué)性能測(cè)試等,并且給出了具體的操作指南。通過(guò)這些嚴(yán)格的檢驗(yàn)程序,可以有效排除不合格產(chǎn)品流入市場(chǎng)或施工現(xiàn)場(chǎng)的風(fēng)險(xiǎn)。

最后,標(biāo)準(zhǔn)還特別強(qiáng)調(diào)了標(biāo)志與包裝的重要性,要求每個(gè)合格的產(chǎn)品都應(yīng)該附有清晰可見(jiàn)的產(chǎn)品信息標(biāo)簽,包括制造商名稱(chēng)、型號(hào)規(guī)格、生產(chǎn)日期等關(guān)鍵數(shù)據(jù);而合理的包裝方式則能有效保護(hù)產(chǎn)品在運(yùn)輸過(guò)程中免受損傷。


如需獲取更多詳盡信息,請(qǐng)直接參考下方經(jīng)官方授權(quán)發(fā)布的權(quán)威標(biāo)準(zhǔn)文檔。

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文檔簡(jiǎn)介

ICS29.280

CCSS82

中華人民共和國(guó)國(guó)家標(biāo)準(zhǔn)

GB/T25020.1—2025

代替GB/T25020.1—2010,GB/T25020.3—2016,GB/T25020.4—2016

電氣化鐵路接觸網(wǎng)支柱

第1部分:鋼支柱

Poleforoverheadcontactsystemofelectrifiedrailways—

Part1:Steelpole

2025?01?24發(fā)布2025?08?01實(shí)施

國(guó)家市場(chǎng)監(jiān)督管理總局

國(guó)家標(biāo)準(zhǔn)化管理委員會(huì)發(fā)布

GB/T25020.1—2025

目次

前言··························································································································Ⅲ

引言··························································································································Ⅴ

1范圍·······················································································································1

2規(guī)范性引用文件········································································································1

3術(shù)語(yǔ)和定義··············································································································2

4分類(lèi)與表示方法········································································································2

4.1分類(lèi)·················································································································2

4.2表示方法···········································································································3

5技術(shù)要求·················································································································3

5.1一般要求···········································································································3

5.2材料·················································································································4

5.3制造要求···········································································································4

5.4外形尺寸偏差·····································································································5

5.5結(jié)構(gòu)性能···········································································································6

6試驗(yàn)方法·················································································································7

6.1外形尺寸···········································································································7

6.2鍍層·················································································································7

6.3結(jié)構(gòu)性能···········································································································7

7檢驗(yàn)規(guī)則·················································································································7

7.1檢驗(yàn)分類(lèi)···········································································································7

7.2出廠(chǎng)檢驗(yàn)···········································································································7

7.3型式檢驗(yàn)···········································································································8

8標(biāo)志與產(chǎn)品合格證···································································································10

9儲(chǔ)存及運(yùn)輸············································································································10

附錄A(規(guī)范性)支柱外形尺寸及檢驗(yàn)彎矩······································································11

附錄B(規(guī)范性)支柱結(jié)構(gòu)性能試驗(yàn)方法·········································································22

GB/T25020.1—2025

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分:標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

本文件是GB/T25020《電氣化鐵路接觸網(wǎng)支柱》的第1部分。GB/T25020已經(jīng)發(fā)布了以下部分:

——第1部分:鋼支柱。

本文件代替GB/T25020.1—2010《電氣化鐵路接觸網(wǎng)鋼支柱第1部分:格構(gòu)式支柱》、

GB/T25020.3—2016《電氣化鐵路接觸網(wǎng)鋼支柱第3部分:環(huán)形鋼管支柱》和GB/T25020.4—2016

《電氣化鐵路接觸網(wǎng)鋼支柱第4部分:H形支柱》,本文件合并修訂GB/T25020.1—2010、

GB/T25020.3—2016和GB/T25020.4—2016,與上述文件相比,除結(jié)構(gòu)調(diào)整和編輯性改動(dòng)外,主要技

術(shù)變化如下:

a)增加了鋼板的技術(shù)要求(見(jiàn)5.2.1.2);

b)增加了角鋼的技術(shù)要求(見(jiàn)5.2.1.3);

c)增加了H型鋼的技術(shù)要求(見(jiàn)5.2.1.4);

d)更改了鋼材剪切下料的環(huán)境溫度要求(見(jiàn)5.3.2.5,GB/T25020.1—2010的5.3.1.2,

GB/T25020.3—2016的5.3.2.2,GB/T25020.4—2016的5.3.2.3);

e)更改了鍍層表面質(zhì)量的技術(shù)要求(見(jiàn)5.3.5.1,GB/T25020.1—2010的5.4.2.1,GB/T25020.3—

2016的5.5.1,GB/T25020.4—2016的5.4.1.2);

f)更改了鍍層厚度的技術(shù)要求(見(jiàn)表1,GB/T25020.1—2010的5.4.4.1,GB/T25020.3—2016

的5.4.3,GB/T25020.4—2016的5.4.1.5);

g)更改了構(gòu)件的外形尺寸技術(shù)要求(見(jiàn)表2、表3、表4,GB/T25020.1—2010的表3,GB/T25020.3—

2016的表3,GB/T25020.4—2016的表3);

h)更改了出廠(chǎng)檢驗(yàn)批量的要求(見(jiàn)7.2.3,GB/T25020.1—2010的7.1.2,GB/T25020.3—2016

的7.1.2,GB/T25020.4—2016的7.1.2);

i)更改了合格性判定方法(見(jiàn)7.2.4,7.3.4,GB/T25020.1—2010的7.1.4、7.2.4,GB/T25020.3—

2016的7.1.4、7.2.4,GB/T25020.4—2016的7.1.4、7.2.4)

j)更改了型式檢驗(yàn)條件的要求(見(jiàn)7.3.1,GB/T25020.1—2010的7.2.1,GB/T25020.3—2016

的7.2.1,GB/T25020.4—2016的7.2.1);

k)更改了格構(gòu)式支柱的型號(hào)(見(jiàn)表A.1,GB/T25020.1—2010的4.1);

l)增加了格構(gòu)式支柱的平行線(xiàn)路方向承載力檢驗(yàn)彎矩的要求(見(jiàn)表A.2);

m)更改了H形支柱的型號(hào)(見(jiàn)表A.4,GB/T25020.4—2016的4.1);

n)刪除了錐形鋼管支柱類(lèi)型(見(jiàn)GB/T25020.3—2016的表2);

o)刪除了涂料涂裝要求(見(jiàn)GB/T25020.3—2016的5.4.6,GB/T25020.4—2016的5.4.2)。

請(qǐng)注意本文件的某些內(nèi)容可能涉及專(zhuān)利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識(shí)別專(zhuān)利的責(zé)任。

本文件由全國(guó)軌道交通電氣設(shè)備與系統(tǒng)標(biāo)準(zhǔn)化技術(shù)委員會(huì)(SAC/TC278)提出并歸口。

本文件起草單位:中國(guó)鐵道科學(xué)研究院集團(tuán)有限公司鐵道建筑研究所、中鐵電氣化局集團(tuán)有限公

司、中鐵電氣化勘測(cè)設(shè)計(jì)研究院有限公司、中鐵電工保定制品有限公司、中國(guó)鐵路設(shè)計(jì)集團(tuán)有限公司、

中鐵檢驗(yàn)認(rèn)證中心有限公司。

本文件主要起草人:仲新華、蘇婉玉、孫明新、周啟斌、劉峰濤、徐偉超、張曼華、邢彤、渠亞男、

胡會(huì)良、王家赫。

GB/T25020.1—2025

本文件及其所代替文件的歷次版本發(fā)布情況為:

——GB/T25020.1—2010;

——GB/T25020.3—2010,2016年第一次修訂;

——GB/T25020.4—2010,2016年第一次修訂。

GB/T25020.1—2025

引言

電氣化鐵路接觸網(wǎng)支柱按材質(zhì)分為鋼支柱和混凝土支柱。為了統(tǒng)一技術(shù)要求,增強(qiáng)通用性,

GB/T25020《電氣化鐵路接觸網(wǎng)支柱》給出了接觸網(wǎng)支柱的要求及指南,擬由兩個(gè)部分構(gòu)成。

——第1部分:鋼支柱。目的在于規(guī)定電氣化鐵路接觸網(wǎng)鋼支柱分類(lèi)、技術(shù)要求、試驗(yàn)方法、檢驗(yàn)

規(guī)則等。

——第2部分:混凝土支柱。目的在于規(guī)定電氣化鐵路接觸網(wǎng)混凝土支柱分類(lèi)、技術(shù)要求、試驗(yàn)方

法、檢驗(yàn)規(guī)則等。

GB/T25020.1—2025

電氣化鐵路接觸網(wǎng)支柱

第1部分:鋼支柱

1范圍

本文件規(guī)定了電氣化鐵路接觸網(wǎng)鋼支柱的分類(lèi)與表示方法、技術(shù)要求、試驗(yàn)方法、檢驗(yàn)規(guī)則、標(biāo)志

與產(chǎn)品合格證、儲(chǔ)存及運(yùn)輸。

本文件適用于電氣化鐵路接觸網(wǎng)鋼支柱,城市軌道交通采用的同類(lèi)支柱參照?qǐng)?zhí)行。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過(guò)文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中,注日期的引用文

件,僅該日期對(duì)應(yīng)的版本適用于本文件;不注日期的引用文件,其最新版本(包括所有的修改單)適用于

本文件。

GB/T411型

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