ICS

19.100

CCS

N78

中華人民共和國國家標(biāo)準(zhǔn)

GB/T26838—2024

代替GB/T26838—2011

無損檢測儀器

攜帶式工業(yè)X射線探傷機(jī)

Non-destructivetestinginstruments—

PortableindustrialX-rayradiographicequipment

2024-08-23發(fā)布2025-03-01實(shí)施

國家市場監(jiān)督管理總局發(fā)布

國家標(biāo)準(zhǔn)化管理委員會

GB/T26838—2024

目次

前言

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Ⅲ

1

范圍

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1

2

規(guī)范性引用文件

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1

3

術(shù)語和定義

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1

4

產(chǎn)品分類

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1

4.1

產(chǎn)品型號

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1

4.2

主要技術(shù)參數(shù)

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2

5

技術(shù)要求

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2

5.1

使用條件

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2

5.2

使用性能

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2

5.3

穩(wěn)定性

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4

5.4

輻射防護(hù)與安全

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4

5.5

外觀要求

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4

6

試驗(yàn)方法

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4

6.1

試驗(yàn)條件

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4

6.2

試驗(yàn)用主要儀器儀表和器具

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5

6.3

穿透力測定

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5

6.4

相對靈敏度測定

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7

6.5

射線輻射角和輻射場均勻性測定

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7

6.6

周向X射線機(jī)射線輻射角測定

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9

6.7

計時器誤差測定

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9

6.8

管電壓誤差測定

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9

6.9

管電壓調(diào)節(jié)裝置測定

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10

6.10

過電流保護(hù)測定

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10

6.11

過電壓保護(hù)測定

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10

6.12

溫度保護(hù)測定

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11

6.13

管電流欠毫安保護(hù)裝置測定

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11

6.14

連續(xù)工作穩(wěn)定性能測定

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11

6.15

變頻、氣絕緣主回路穩(wěn)壓電路輸出電壓波動測定

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11

6.16

漏射線所致周圍劑量當(dāng)量率測定

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11

6.17

低壓回路絕緣電阻測定

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11

6.18

接地保護(hù)裝置接地電阻測定

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11

6.19

低壓回路絕緣強(qiáng)度測定

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11

6.20

高壓回路絕緣強(qiáng)度測定

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12

Ⅰ

GB/T26838—2024

6.21

高壓變壓器次級對地絕緣強(qiáng)度測定

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12

6.22

高壓變壓器初級對地絕緣電阻測定

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12

6.23

燈絲變壓器初級對地絕緣強(qiáng)度測定

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12

6.24

外觀質(zhì)量檢測

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12

6.25

泄漏測定

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12

6.26

運(yùn)輸、貯存環(huán)境試驗(yàn)

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12

6.27

包裝試驗(yàn)

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12

7

檢驗(yàn)規(guī)則

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12

7.1

出廠檢驗(yàn)

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12

7.2

型式檢驗(yàn)

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12

8

標(biāo)志、包裝、運(yùn)輸和貯存

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13

8.1

標(biāo)志

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13

8.2

包裝

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14

8.3

運(yùn)輸和貯存

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14

附錄A（資料性）

工業(yè)X射線機(jī)用穿透力校驗(yàn)試塊

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15

Ⅱ

GB/T26838—2024

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。

本文件代替GB/T26838—2011《無損檢測儀器

攜帶式工業(yè)X射線探傷機(jī)》，與

GB/T26838—2011相比，除結(jié)構(gòu)調(diào)整和編輯性改動外，主要技術(shù)變化如下：

a）增加了“術(shù)語和定義”（見第3章）；

b）更改了“產(chǎn)品型號”（見4.1，2011年版的3.1）；

c）更改了“環(huán)境溫度”［見5.1b），2011年版的4.1b）]；

d）增加了“頻率”要求［見5.1e）]；

e）更改了“曝光量”（見表1、表2、表3，2011年版的表1、表2、表3、表4）；

f）刪除了“定向、工頻、油絕緣X射線機(jī)穿透力和主型號”的描述（見2011年版的表2）；

g）更改了“溫度保護(hù)裝置”（見5.2.9，2011年版的4.2.9）；

h）更改了“漏射線空氣比釋動能率”相關(guān)描述（見5.4.1，2011年版的4.4.1）；

i）更改了“穿透力測定”試驗(yàn)步驟（見6.3.2，2011年版的5.3.2）；

j）更改了“定向X射線機(jī)穿透力試驗(yàn)示意圖”（見圖2，2011年版的圖2）

k）增加了“周向X射線機(jī)穿透力試驗(yàn)示意圖”（見6.3.3.1的圖3）；

l）更改了“像質(zhì)計放置示意圖”（見圖4，2011年版的圖3）；

m）刪除了關(guān)于定向X射線機(jī)輻射角測定的部分描述（見2011年版的5.5.1）；

n）刪除了“用球隙放電法測定管電壓誤差”（見2011年版的5.8.1）；

o）更改了“漏射線空氣比釋動能率”試驗(yàn)方法（見6.16，2011年版的5.17）；

p）刪除了“清潔度檢測”（見2011年版的5.26）；

q）刪除了“工頻、油絕緣發(fā)生器密封性檢測”［見2011年版的5.28a）]。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識別專利的責(zé)任。

本文件由中國機(jī)械工業(yè)聯(lián)合會提出。

本文件由全國試驗(yàn)機(jī)標(biāo)準(zhǔn)化技術(shù)委員會（SAC/TC122）歸口。

本文件起草單位：遼寧儀表研究所有限責(zé)任公司、丹東市市場監(jiān)管事務(wù)服務(wù)中心（丹東市檢驗(yàn)檢測

認(rèn)證中心）、遼寧軌道交通職業(yè)學(xué)院、愛德森（廈門）電子有限公司、丹東奧龍射線儀器集團(tuán)有限公

司、丹東長英檢測儀器有限公司、臨沂正大檢測技術(shù)有限公司、杭州智感科技有限公司、山東魯能特種

設(shè)備檢驗(yàn)檢測有限公司、長沙戴卡科技有限公司、中機(jī)試驗(yàn)裝備股份有限公司。

本文件主要起草人：于志軍、趙小東、蔡靖、林俊明、曹高峰、姜盛杰、程雷、余長江、王琳、

侯文峰、程亞龍、劉軍、任霞。

本文件及其所代替文件的歷次版本發(fā)布情況為：

—2011年首發(fā)布為GB/T26838—2011；

—本次為第一次修訂。

Ⅲ

GB/T26838—2024