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GB/T 2900.1-2008Electrotechnical terminology - Fundamental terms (English PDF)

电工术语基本术语

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

June 18, 2008

Implementation date

May 1, 2009

Scope

GB/T 2900.1-2008 is the English-translated version of 电工术语基本术语.

GB/T 2900.1-2008 is the Chinese standard "Electrotechnical terminology - Fundamental terms". Its scope clause reads: This part specifies the fundamental terms in electrotechnical terminology.

This part is applicable to the standard formulation and reversion, technical document compilation, preparation and translation of professional technology information and teaching material or books and periodicals and is used by the personnel in relevant departments regarding the scientific research, design, production, application, teaching and publication, etc. in electrician specialty. Its clauses include terms and definitions.

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Document preview — GB/T 2900.1-2008

National Standard of the People's Republic of China

ICS: 01.040.29
Classification: K 04
Replacing: GB/T 2900.1-1992

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
3.1 Fundamental Terms
3.2 Electric Circuit
3.3 Electric and Magnetic Components
3.4 Electromagnetic Compatibility
3.5 Electrical Safety
3.6 Electrical Drawing
Chinese Index
English Index

1 Scope

This part specifies the fundamental terms in electrotechnical terminology.

2 Normative References

The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of GB/T 2900. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this part. However parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.

GB/T 2900.60-2002 Electrotechnical Terminology – Electromagnetism (IEC 60050-121:1998, EQV)

GB/T 2900.61-2008 Electrotechnical Terminology - Physics and Chemistry (IEC 60050-111:1996, MOD)

GB/T 2900.71-2008 Electrotechnical Terminology - Electrical Installations (IEC 60050-826:2004, IDT)

GB/T 2900.72-2008 Electrotechnical Terminology - Polyphase Systems and Circuits (IEC 60050-141:2004, IDT)

GB/T 2900.73-2008 Electrotechnical Terminology - Earthing and Protection Against Electric Shock (IEC 60050-195:1998, MOD)

GB/T 2900.74-2008 Electrotechnical Terminology - Circuit Theory (IEC 60050-131:2002, MOD)

GB/T 2900.83-2008 Electrotechnical Terminology - Electrical and Magnetic Devices (IEC 60050-151:2001, IDT)

GB/T 4365-2003 Electrotechnical Terminology - Electromagnetic Compatibility (IEC 60050-161:1990, IDT)

GB/T 6988.1-2008 Preparation of Documents Used in Electrotechnology - Part 1: Rules (IEC 61802-1:2006, IDT)

IEC 60050-101:1998 International Electrotechnical Vocabulary - Mathematics

3 Terms and Definitions

3.1 Fundamental Terms

3.1.1 scalar quantity

quantity of single real number or complex number

[101-11-09]

Note: In the three-dimensional space with definable sense of direction, the term "scalar quantity" is generally limited to the quantity irrelevant to direction.

3.1.2 vector quantity

quantity which can be represented as an element of a set, in which both the product of any element and either any real or any complex number and also the sum of any two elements are elements of the set

[101-11-10]

Note 1: A vector quantity in an n-dimensional space is characterized by an ordered set of n real or complex numbers, which depend on the choice of the n base vectors if n is greater than 1.

Note 2: For a real two- or three-dimensional space, a vector quantity can be represented as an oriented line segment characterized by its direction and length.

Note 3: A complex vector quantity is defined by a real part and an imaginary part: where and are real vector quantities.

Note 4: A vector quantity is indicated by a letter symbol V in bold-face type or by an arrow above a letter symbol: .

3.1.3 field

state of a region in which a quantity or an interrelated set of quantities exists at each point and depends on the position of the point […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 25 pages — is available in the English PDF.

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Editions of GB/T 2900.1

Edition	Title	Revision	Status
GB/T 2900.1-2008	Electrotechnical terminology - Fundamental terms	current edition	Current
GB/T 2900.1-1992	Electrotechnical terminology - Fundamental terms	previous edition	Superseded

This page sells the current edition, GB/T 2900.1-2008. Earlier editions are listed for reference only.

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