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General technical requirements for electro-conductive material-over-foam gasket
Specification of supervision and administration for electricity meter
General specification for electromagnetic shielding heat-shrinkable tubes
本文件規定了預應力鋼筒混凝土管采用遠場渦流電磁法無損檢測預應力鋼絲完整性的工作原理、檢測系統、標定試驗、檢測對象、檢測準備、檢測實施及質量控制等要求,描述了數據分析方法,給出了結果報告的基本內容。 本文件適用于水利、市政等工程用預應力鋼筒混凝土管道檢測。
Technical requirements for nondestructive testing (electromagnetic method based on remote field eddy current) on prestressed concrete cylinder pipe
本文件界定了0 Hz~500GHz頻率范圍內具有電磁屏蔽作用的材料的術語和定義。 本文件適用于電磁屏蔽材料領域及相關的設備、人體和環境等領域的電磁屏蔽。 注:為方便使用,附錄A給出了電磁屏蔽材料輔助性名詞術語。
Terminology for electromagnetic shielding materials
GB/T37977的本部分規定了用于避免靜電電荷累積的固體平面材料的電阻和電阻率的測試方法,測試電阻的適用范圍從10"Q到10Q
Electrostatics—Part 2-3:Methods of test for determining the resistance and resistivity of solid planar materials used to avoid electrostatic charge accumulation
General technical requirements for electromagnetic shielding all-round conductive foam
本標準規定了數字多用表校準儀(以下簡稱校準儀)的術語、產品分類、要求、試驗方法、檢驗規則、標志、包裝、運輸、貯存和隨機文件。 本標準適用于以校準數字多用表為目的的各種校準儀器和校準裝置。
General specification for calibrator of digital multimeter
本標準規定了對0 Hz~300 GHz頻率范圍的電磁場具有電磁屏蔽作用的材料的術語和定義。 本標準適用于電磁屏蔽材料領域及相關的設備、人體和環境等領域的電磁屏蔽。
Terminology for electromagnetic shielding materials
本標準適用于以校準數字多用表為目的的各種校準儀器和校準裝置。 本標準不適用于各種通用的交直流電壓、電流穩定電源,也不適用于各種標準電阻和電阻箱。
Generic specification for calibrator of digital multimeter
IEC 62836:2024 provides an efficient and reliable procedure to test the internal electric field in the insulating materials used for high-voltage applications, by using the pressure wave propagation (PWP) method. It is suitable for a planar and coaxial geometry sample with homogeneous insulating materials of thickness larger or equal to 0,5 mm and an electric field higher than 1 kV/mm, but it is also dependent on the thickness of the sample and the pressure wave generator. This first edition cancels and replaces IEC TS 62836 published in 2020. This edition includes the following significant technical changes with respect to IEC TS 62836: a) addition of Clause 12 for the measurement of space charge distribution in a planar sample; b) addition of Clause 13 for coaxial geometry samples; c) addition of Annex D with measurement examples for coaxial geometry samples; d) addition of a Bibliography; e) measurement examples for a planar sample have been moved from Clause 12 in IEC TS 62836 to Annex C.
Measurement of internal electric field in insulating materials - Pressure wave propagation method
IEC 60674-2:2016 is applicable to plastic films used for electrical purposes. This part of IEC 60674 gives methods of test. This second edition cancels and replaces the first edition published in 1988 and Amendment 1 (2001). This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - this document was completely revised editorially and technically and included in the IEC 60674 series of standards; - the test methods are updated to reflect today's state of the art; - a method to obtain DC electric strength is now specified according to IEC 60243-2. Keywords: plastic films for electrical purposes The contents of the corrigendum of December 2017 have been included in this copy.
Specification for plastic films for electrical purposes - Part 2: Methods of test
本文件規定了城市軌道交通工程弱電設備機房的電磁干擾防護基本規定、性能要求、測試方法和測試報告。
Performance requirements and test methods for anti-electromagnetic interference of weak current equipment room in urban rail transit construction
IEC 60455-2:2023 is available as IEC 60455-2:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60455-2:2023 specifies methods of test to be used for testing resin based reactive compounds, their components and cured compounds used for electrical insulation. This fourth edition cancels and replaces the third edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Introduction of test methods related to IEC 60455-3-8; b) Additional and updated test methods for resins.
Resin based reactive compounds used for electrical insulation - Part 2: Methods of test
IEC TS 62749:2020 is available as IEC TS 62749:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC TS 62749:2020 specifies the expected characteristics of electricity at the SUPPLY TERMINALS of public low, medium and high voltage, 50 Hz or 60 Hz, networks. NOTE 1 The boundaries between the various voltage levels can be different for different countries/regions. In the context of this TS, the following terms for system voltage are used: - low voltage (LV) refers to less than or equal to 1 kV; - medium voltage (MV) refers to between 1 kV and 35 kV; - high voltage (HV) refers to between 35 kV and 230 kV. While power quality is related to EMC in a number of ways this document is not an EMC publication. This second edition cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) minimum number of remaining data for weekly analysis, b) improvement of the compatibility between EN 50160 and IEC TS 62749, c) further explanation of the conception of daily sliding window, d) further explanation of the aggregation method used for events, e) further explanation of the relation between Power Quality and EMC, f) addition of a new definition of mains communicating system (MCS), g) addition of a new Annex G: Other phenomena, h) transfer of the main content of IEC TR 62510 to IEC TS 62749.
Assessment of power quality - Characteristics of electricity supplied by public networks
1. 磁探測性能:收信靈敏度,磁信號分辨率,動態范圍,本底噪聲 2. 通信接收性能:頻率失真率,工作頻率,采樣率,耐壓性,密封性 3. 其他技術要求:環境適應性,連續工作時間,電磁兼容性,可靠性,互換性
Technical requirements and test methods for superconducting communication receiver
1 范圍 本規范適用于電子密度范圍1012m-3~1018m-3,電子溫度范圍1eV~10eV的低溫等離子體朗繆爾單探針等離子體測試儀(下文簡稱等離子體測試儀)的校準。 2 引用文件 本規范引用了下列文件: GJB 7363—2011 空間等離子體環境效應動態試驗方法 凡是注日期的引用文件,僅注日期的版本適用于本規范;凡是不注日期的引用文件,其最新版本(包括所有的修改單)適用本規范。 3 術語和定義 GJB 7363—2011界定的及以下術語和定義適用于本規范。 3.1 等離子體 plasma 等離子體由大量帶電粒子(正離子、負電子)和中性粒子所組成,常被視為物質的第四態。在宏觀尺度上(大于德拜長度)正離子和負電子的密度相等,呈準中性。 3.2 等離子體發生器 plasma generator 通過能量轉變方式將物質的狀態轉變為等離子體態的設備。 3.3 等離子體電子密度 plasma electron density 等離子體內部單位體積內可自由運動的電子數,單位為m-3。 3.4 等離子體電子溫度 plasma electron temperature 等離子體內電子達到局部熱平衡時的平均動能,單位為eV(1eV的平均動能換算溫度為11600K)。 4 概述 等離子體測試儀是一種接觸式等離子體測量設備,主要用于等離子體電子溫度和電子密度的測量,由探針、掃描電源、采集和調理系統組成。探針的探頭通常采用耐高溫、耐濺射的導電材料,通常選用鎢作為探頭材料,測量時將其置于等離子體環境中。等離子體測試儀的掃描電源產生周期性的掃描電壓,并將其加載到探針上。當掃描電壓從負變為正(或從正變為負)的過程中,通過采集和調理系統測量探針對等離子體容器壁(接地)的電壓和探針與等離子體組成的回路電流,即可得到一條關于被測等離子體的伏安特性曲線。根據經典朗繆爾探針理論,通過伏安特性曲線求解即可計算等離子體電子溫度(Te)和電子密度(Ne)參數。 5 計量特性 5.1 電子密度示值誤差 電子密度測量范圍:1012m-3~1018m-3; 最大允許誤差:±(30%~60%)。 5.2 電子溫度示值誤差 電子溫度測量范圍:1eV~10eV; 最大允許誤差:±(30%~60%)。 5.3 掃描電源輸出電壓設置值誤差 測量范圍:-150V~150V; 最大允許誤差:±(5%設定值+0.05V)。 5.4 采集和調理系統電壓示值誤差 測量范圍:-150V~150V; 最大允許誤差:±(5%顯示值+0.05V)。 5.5 采集和調理系統電流示值誤差 測量范圍:0.01mA~300mA; 最大允許誤差:±(5%顯示值+0.005mA)。 6 校準條件 6.1 環境條件 a) 環境溫度:20℃±5℃; b) 相對濕度:≤80%; c) 供電電源:(220±22)V,(50±1)Hz; d) 其他:周圍無影響正常校準的電磁干擾和機械振動。 6.2 校準用設備 校準用設備應經過計量技術機構檢定或校準,滿足校準使用要求,并在有效期內。 a) 等離子體發生器標準裝置(包含真空獲得系統、真空測量系統、標準等離子體發生器和標準朗繆爾探針測試系統) 1)放電氣體種類:Ar、Ne、Xe等; 2)放電氣壓范圍:1×10-4Pa~10Pa; 3)等離子體發生器放電功率:(0~1250)W; 4)電子密度測量范圍:1012m-3~1018m-3; 5)電子密度最大允許誤差:±7.5%; 6)電子溫度測量范圍:1eV~10eV; 7)電子溫度最大允許誤差:±7.5%。 b) 數字示波器(含10:1探頭) 1)帶寬:≥1MHz; 2)交流電壓幅度測量最大允許誤差:±2%; 3)輸入電阻:1MΩ。 c) 直流數字電壓表 1)測量范圍:-150V~150V; 2)直流電壓測量最大允許誤差:±(1%讀數+0.01V)。 d) 直流數字電流表 1)測量范圍:0.01mA~300mA; 2)直流電流測量最大允許誤差:±(1%讀數+0.001mA)。 e) 直流電阻箱 1)直流電阻范圍:0.01Ω~100kΩ; 2)最大允許誤差:±(0.1%設置值+0.005Ω)。
Calibration Specification for Single Langmuir Probe Plasma Instrument
Experimental methods for testing secondary batteries and their key materials using time-of-flight secondary ion mass spectrometry
1. 磁探測性能:收信靈敏度,磁信號分辨率,動態范圍,本底噪聲 2. 通信接收性能:頻率失真率,工作頻率,采樣率,耐壓性,密封性 3. 其他技術要求:環境適應性,連續工作時間,電磁兼容性,可靠性,互換性
Technical requirements and test methods for superconducting communication receiver
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