GB/T 25890.8-2010 English PDF

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GB/T 25890.8-2010: Railway applications -- Fixed installations -- DC switchgear -- Part 7-2: Measurement, control and protection devices for specific use in d.c. traction systems -- Isolating current transducers and other current measuring devices
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25890.8-2010	134	Add to Cart	3 days	Railway applications -- Fixed installations -- DC switchgear -- Part 7-2: Measurement, control and protection devices for specific use in d.c. traction systems -- Isolating current transducers and other current measuring devices	Valid

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GB/T 25123.2   GB/T 25123.1   GB/T 25123.4   GB/T 25890.3   GB/T 25890.4   GB/T 25890.2   

Basic data

Standard ID: GB/T 25890.8-2010 (GB/T25890.8-2010)
Description (Translated English): Railway applications -- Fixed installations -- DC switchgear -- Part 7-2: Measurement, control and protection devices for specific use in d.c. traction systems -- Isolating current transducers and other current measuring devices
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: S35
Classification of International Standard: 29.280
Word Count Estimation: 7,730
Date of Issue: 1/10/2011
Date of Implementation: 6/1/2011
Quoted Standard: GB/T 25890.1-2010; IEC 62236-2; IEC 62236-3-2; IEC 62236-1; IEC 62236-4; IEC 62236-5; IEC 62236-3-1; EN 50124-1-2001
Adopted Standard: IEC 61992-7-2-2006, IDT
Regulation (derived from): Announcement of Newly Approved National Standards 2011 No. (No. 166 overall) 1
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Standard specifies requirements for current transmitter isolation and other facilities for rail and ground equipment DC current measurement devices. The transmitter is usually installed between a power strip device of the primary side and the secondary side rail sensors or devices, to provide electrical insulation for input and output.

GB/T 25890.8-2010: Railway applications -- Fixed installations -- DC switchgear -- Part 7-2: Measurement, control and protection devices for specific use in d.c. traction systems -- Isolating current transducers and other current measuring devices

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Railway applications Fixed installations DC switchgear Part 7-2... Measurement, control and protection devices for specific use in dc traction systems Isolating current transducers and other current measuring devices ICS 29.280 S35 National Standards of People's Republic of China Light Rail DC switchgear apparatus Part 7-2. DC traction power supply system dedicated Measurement, control and protection devices Isolated current transducer and other current measuring devices Part 7-2. Measurement, controlandprotectiondevices (IEC 61992-7-2.2006, IDT) Issued on. 2011-01-10 2011-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 25890 "Light Rail DC switchgear apparatus" consists of the following components. --- Part 1. General; --- Part 2. DC circuit breaker; --- Part 3. Indoor dc isolation switch, load switch and earthing switch; --- Part 4. Outdoor DC isolation switch, load switch and earthing switch; --- Part 5. DC surge arresters and low voltage limiters; --- Part 6. DC switchgear equipment; --- Part 7-1. DC traction power supply system-specific measurement, control and protection devices Application Guide; --- Part 7-2. DC traction power supply system-specific measurement, control and protection devices for isolating current transducers and other current measuring equipment; --- Part 7-3. DC traction power supply system-specific measurement, control and protection devices and other isolated voltage transducer voltage measurement equipment. This is Part 7-2 GB/T 25890 of. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses the translation method identical with IEC 61992-7-2.2006 "Light Rail DC switchgear apparatus 7-2 Part I. DC traction power supply system-specific measurement, control and protection devices for isolating current transducers and other current measuring devices "(in English). Correspondence with consistency in this section of our normative references the following documents. --- GB/T 24338.1-2009 rail Electromagnetic compatibility - Part 1. General (IEC 62236-1.2003, IDT); --- GB/T 24338.3-2009 rail Electromagnetic compatibility Part 3-1. Rolling stock train and vehicle (IEC 62236-3-1.2003, IDT); --- GB/T 24338.4-2009 rail Electromagnetic compatibility Part 3-2. Rolling stock equipment (IEC 62236-3-2. 2003, MOD); --- GB/T 24338.5-2009 rail Electromagnetic compatibility - Part 4. Emission and immunity of the signaling and telecommunications apparatus (IEC 62236-4.2003, IDT); --- GB/T 24338.6-2009 rail Electromagnetic compatibility - Part 5. Anti-emission and ground power units and equipment scrambling Degree (IEC 62236-5.2003, IDT). This section proposed by the People's Republic of China Ministry of Railways. This part of the National electric traction equipment and systems Standardization Technical Committee (SAC/TC278) centralized. This section is responsible for drafting unit. China Railway Electrification Survey Design and Research Institute Limited. Participated in the drafting of this section. The Siyuan Group Co., Ltd., Tianjin Hyflux Electric Company. The main drafters of this section. Liu Aihua, high clouds. The drafters of some of the participants. Lvwen Li, Song Jinchuan. Light Rail DC switchgear apparatus Part 7-2. DC traction power supply system dedicated Measurement, control and protection devices Isolated current transducer and other current measuring devices

1 Scope

This section GB/T 25890 specifies the current transmitter isolation and other current measuring facilities and for rail transport dc ground means Desired amount of equipment. The transmitter is usually installed between the primary-side switchboard equipment sensors or rail and the secondary side equipment to provide electrical input and output insulation.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 25890.1-2010 Light Rail system DC switchgear - Part 1. General (IEC 61992-1. 2006, IDT) IEC 62236 (all parts), Railway applications - Electromagnetic compatibility (Railwayapplication-Electromagneticcompati- bility) EN50124-1.2001 Railway applications - Insulation coordination - Part 1. General requirements and creep voids all electrical and electronic equipment Variable distance (Railwayapplication-Insulationcoordination-Part 1. Basicrequirements-Clearancesand creepagedistancesforelectricalandelectronicequipment)

3 Terms and Definitions

Terms and definitions GB/T 25890.1-2010 established applicable to this document.

4 Operating Conditions

When the device is mounted on the apparatus and equipment GB/T 25890 stipulated, consistent with their working conditions and equipment and complete sets of equipment. In this section, EN50124-1. Pollution Level PD4 and overvoltage category described in 2001 (see GB/T 25890.1-2010 Notes to Table 1) is considered normal working conditions. Normal operating conditions, see GB/T 25890.1-2010 Appendix B.

5 features

5.1 Electrical Characteristics 5.1.1 Overview Isolation transmitter once the same insulation level insulation class and the main circuit side and the secondary side connection terminals. ......

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