GB/T 2900.4-2008 English PDF

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GB/T 2900.4-2008: Electrotechnical terminology -- Special alloys for electrical equipment
Status: Valid

GB/T 2900.4: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 2900.4-2008	1199	Add to Cart	8 days	Electrotechnical terminology -- Special alloys for electrical equipment	Valid
GB/T 2900.4-1994	RFQ	ASK	9 days	Eletrotechnical terminology. Special alloys for electrical equipment	Obsolete
GB 2900.4-1986	RFQ	ASK	9 days	Electro technical terminology--Special alloys for electrical equipment	Obsolete

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GB/T 38090   GB/T 29628   GB/T 3217   GB/T 2900.5   GB/T 2900.10   GB/T 2900.8   

Basic data

Standard ID: GB/T 2900.4-2008 (GB/T2900.4-2008)
Description (Translated English): Electrotechnical terminology -- Special alloys for electrical equipment
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K14
Classification of International Standard: 29.120.99
Word Count Estimation: 54,590
Date of Issue: 2008-06-18
Date of Implementation: 2009-05-01
Older Standard (superseded by this standard): GB/T 2900.4-1994
Quoted Standard: GB/T 2900.60-2002; GB/T 9637-2001
Regulation (derived from): Announcement of Newly Approved National Standards No. 10 of 2008 (total 123)
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 the electrical contacts, thermal bimetal, electric alloys, conductive alloys, resistance alloy, thermocouple alloys and magnetic materials dedicated electrical terminology. This section applies to an electrical contact, thermal bimetal, electric alloys, conductive alloys, resistance alloy, thermocouple alloys and magnetic materials such as product standards, technical documents, preparation and translation of professional manuals, textbooks, monographs and other publications, and external trade, international technical exchanges.

GB/T 2900.4-2008: Electrotechnical terminology -- Special alloys for electrical equipment

---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.
Electrotechnical terminology. Special alloys for electrical equipment ICS 29.120.99 K14 National Standards of People's Republic of China Replacing GB/T 2900.4-1994 Electrotechnical terminology - Electrical Alloy Posted 2008-06-18 2009-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 3.1 General terms 1 3.1.1 electrical contacts 1 3.1.2 materials and related properties - 3 3.1.3 electrical contact phenomena 5 3.2 thermal bimetal 7 3.2.1 Materials and Components 7 3.2.2 Performance characteristics and use 8 10 3.2.3 Heat Treatment 3.3 electric alloy 10 3.3.1 Materials and components 10 3.3.2 Performance 11 3.4 conductive alloy 11 3.4.1 Materials and Products 11 3.4.2 Performance and testing 12 3.5 resistance alloy 13 3.5.1 Materials and components 13 3.5.2 Electrical Performance 14 3.5.3 Characteristics of 15 products - Specification 3.6 Thermocouple Alloy 15 3.6.1 Materials and components 15 3.6.2 thermoelectric properties 16 3.6.3 Temperature measurement 16 16 3.7 Magnetic Materials 3.7.1 microscopic magnetic magnetic materials, magnetic order and magnetic domain structure, magnetic substance classification 16 3.7.2 macroscopic magnetic magnetic, static magnetization and the magnetization state of technology 20 3.7.3 magnetic alternating magnetic field magnetic permeability and loss 22 3.7.4 magnets and magnetic materials, the magnetic circuit and Application 23 3.7.5 The magnetic recording 28 Chinese index 37 English 42 Index

Foreword

This section GB/T 2900 Part 4. This Part replaces GB/T 2900.4-1994 "Electrical Electrical Alloy term." Section compared with the GB/T 2900.4-1994 The main changes are as follows. --- Increased 3.1.2.17 continuous grain boundary precipitate term; --- Increased 3.1.2.18 thin oxide zone terminology; --- Increased 3.1.2.19 depleted oxide term bright band; --- Increased 3.1.2.20 unoxidized alloy layer terminology; --- 3.1.3.8 amend the definition of material transfer; --- Modify the definition 3.1.3.20 fusion welding; --- Modified 3.1.3.21 static welding definitions; --- Modify the definition 3.2.2.1 temperature curvature; --- Modify the definition of the bent 3.2.2.2; --- 3.4.2.3 amend the definition of quality resistivity; --- On the part of the term of expression has been modified, but did not change its meaning. This part of the National Electrotechnical Terminology Standardization Technical Committee (SAC/TC232) proposed. This part of the National Electrotechnical Terminology Standardization Technical Committee and the National Standardization Technical Committee centralized electrical alloy co. This section is drafted. Guilin Electrical Apparatus Research Institute, Mechanical Science Research Institute of Machine Productivity Promotion Center. The main drafters of this section. Xie Yongzhong, Chen Jingsheng, Yang Fu, Feng Cui too. This part of the standard replaces the previous editions are. --- GB/T 2900.4-1994. Electrotechnical terminology - Electrical Alloy

1 Scope

This section provides specific electric electrical contacts bimetal thermal, electric alloy, a conductive alloy, resistance alloy, thermocouple alloys and magnetic materials Workers term. This section applies to an electrical contact, thermal bimetal, electric alloy, a conductive alloy, resistance alloy, thermocouple alloys and magnetic materials and other products labeled Standard setting, technical documents, professional preparation and translation of manuals, textbooks, monographs and other publications, as well as foreign trade, international technical exchanges.

2 Normative references

The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 2900.60-2002 Electrotechnical terminology electromagnetics GB/T 9637-2001 Electrotechnical terminology Magnetic materials and components

3 Terms and Definitions

3.1 General terms 3.1.1 electrical contacts 3.1.1.1 Contact A plurality of conductive elements, to establish the continuity of the circuit to each other upon contact, and, due to their relative movement in operation, the disconnect Or a closed circuit; or under sometimes hinged or sliding element, to maintain the continuity of the circuit. 3.1.1.2 Mechanical switching device main circuit contacts. In the on-state current carrying the main circuit. 3.1.1.3 It aims on which arcing contacts. Arcing contacts can cater main contact, it can also be designed as a single contact, in order to keep carrying the operating current Contacts from arc erosion. 3.1.1.4 Mechanical switching auxiliary circuit contacts. With the main contacts simultaneously. 3.1.1.5 It is a relative movement between the contacts and the contacts along a direction parallel to the contact surface of the slide. 3.1.1.6 The relative motion between the contacts is a contact along the surface normal direction of the contact. ......

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