GB标准英文版

2008/11/02

GB 3836.1-2000 爆炸性气体环境用电气设备第一部分：通用要求英文版

1 Scope
1.1 This Standard specifies the general requirements and inspection procedures for the design, inspection and marking of electrical apparatus, Ex cable entry and Ex component for explosive gas atmospheres [1].
1.2 This Standard is supplemented or modified with the following special standards for the types of protection for electrical apparatuses.
GB 3836.2 Electrical apparatus for explosive gas atmospheres -
Part 2: Flameproof type “d”
GB 3836.3 Electrical apparatus for explosive gas atmospheres -
Part 3: Increased safety type “e”
GB 3836.4 Electrical apparatus for explosive gas atmospheres -
Part 4: Intrinsic safe type “i”
GB 3836.5 Electrical apparatus for explosive gas atmospheres -
Part 5:Positive Pressure type “p”
GB 3836.6 Electrical apparatus for explosive gas atmospheres -
Part 6: Oil-Filled type “o”
GB 3836.7 Electrical apparatus for explosive gas atmospheres -
Part 7: Sand-filled type “q”

2 Normative quotation
The clauses contained in the following standards constitute the provisions of this Standard with the references are made in this Standard. When this Standard is published, all the indicated editions are valid. All standards are subject to revisions, and all parties who apply this Standard shall explore the possibilities to use the latest editions of the following standards:
GB/T 70 - 1985 Hexagon socket cap head screws (eqv ISO 4762:1977)
GB/T 77 - 1985 Hexagon socket set screws with flat point (eqv ISO 4026:1977)
GB/T 78 - 1985 Hexagon socket set screws with cone point (eqv ISO 4027:1977)
GB/T 79 - 1985 Hexagon socket set screws with dog point (eqv ISO 4028:1977)
GB/T 80 - 1985 Hexagon socket set screws with cup point (eqv ISO 4029:1977)
GB/T 2423.4-1993 Basic environmental testing procedures for electric and electronic products -Test DB: Damp heat, cyclic (eqv IEC 60068-2-30:1980)
GB 3836.11-1991 Electrical apparatus for explosive atmospheres - Method of test for ascertainment of maximum experimental safe gap (eqv IEC 60079- 1A:1975)
GB 3836.12-1991 Electrical apparatus for explosive atmospheres - Classification of gases or vapors with air according to their maximum experimental safe gaps and minimum igniting currents (eqv IEC 60079 - 12:1978)
GB 4208 -1993 Degree of Protection provided by enclosure (IP Code) (eqv IEC 60529:1989)
GB/T 4942.1-1985 Classification of degrees of protection provided by enclosures for rotating machines (eqv IEC 60034 - 5:1981)
GB/T 5277-1985 Fasteners - Clearance holes for bolts and screws (eqv ISO 273:1979)
GB/T 5782-1986 Hexagon head bolts - Product Grades A and B (eqv ISO 4014:1979)
GB/T 5783-1986 Hexagon head bolts - Full-thread - Product Grades A and B (eqv ISO 4017:1979)
GB/T 6031-1998 Rubber, vulcanized or thermoplastic - Determination of hardness (30 ~ 85 IRHD) (idt ISO 48:1994)
GB/T 6170-1986 Hexagon nuts, Style 1 – Product Grades A and B (eqv ISO 4032:1979)
GB/T 7957-1987 Safety cap lamp for mines
GB/T 9145-1988 General purpose screw threads - Limits of sizes for commercial bolt and nut threads – Medium quality (eqv ISO 965/2:1980)
GB/T 9341-1988 Plastic - Determination of flexural properties of rigid plastic s (eqv ISO 178:1975)
GB/T 11020-1989 Test methods for the determination of the flammability of solid electrical insulating materials when exposed to an igniting source (eqv IEC 707:1981)
GB/T 11026.1-1989 Guide for the determination of thermal endurance properties of electrical insulating materials - General guidelines for ageing procedures and evaluation of test results (eqv IEC 60216-1:1987)
GB 13813-1992 Testing method and judging rule of safety to friction spark of metallic material for coal mines
JB/T 7192-1995 Selectable series of general purpose screw threads for commercial bolts and nuts
IEC 60079—4:1975 Electrical apparatus for explosive atmospheres - Part 4: Test method for determination of ignition temperature
IEC 60192: 1973 Low voltage sodium lamp
IEC 60216—2:1990 Guideline for determination of heat endurance property for electrical insulating materials - Part 2: Selection of testing and judging criteria
IEC 60662: 1980 High voltage sodium lamp
IEC 60947 —1:1996 Low voltage switch and controller - Part 1: General Procedures
ISO 179:1993 Plastic - Method for determination of pendulum impact test strength for rigid plastic
ISO 286-2:1988 ISO system of tolerance and fitting-up - Part 2: Table of standard tolerance grade and tolerance limits for holes and shafts
ISO 527-2:1993 Plastics - Determination of tensile properties Part 2: Formed plastics and molded plastics
ISO 1817:1985 Vulcanized rubber - Determination of effect of liquid
ISO 4892-1:1994 Plastics - Test method of exposure to laboratory light source

3 Definitions and Symbols

GB 1985- 2004 高压交流隔离开关和接地开关英文版

High-voltage Alternating-current Disconnectors and Earthing Switches

1. General

1.1 Scope

The standard is suitable for using for the following AC disconnectors and earthing switches, like fixed indoors and outdoors, terminal is seal and open, the rated voltage is more than 3.6kV, and the operating frequency is less than 50HZ.

The standard is also suitable for the operation mechanism and its auxiliary equipment of these disconnectors and earthing switches.

The additional requirement of disconnectors and earthing switches in enclosed switch equipment and control equipment are given in GB 3906, GB 7674 and IEC 60466.

Note: the standard is exclusive of the situation that the fuse is not taken as a component of the disconnectors.

1.2 Normative quotation

The clauses in the following documents are cited by the Standard becoming the clauses of the Standard. If the cited document is marked date, its subsequent amendment list (exclusive of correction content) or revised edition are not suitable for the Standard. However, the various parties entering into an agreement according to the Standard are encouraged to research whether these documents' latest edition is used or not. If the cited documents are not marked date, the latest edition is suitable for the standard.

GB/T 311.2-2002 Insulation co-ordination-Part 2: Application guide for insulation co-ordination for high voltage transmission and distribution equipment (eqv IEC 60071-2:1996)

GB/T 1804-2000 General tolerances－Tolerances for linear and angular dimensions without individual tolerance indications (eqv ISO 2768-1:1989)

GB/T 2900.20-1994 Electrotechnical terminology-High-voltage switchgear (neq IEC 60050)

GB 3804-2004 3.6kV-40.5 kV High-voltage AC Load Switch (IEC 60265-1:1998, MOD)

GB 3906-1991 3-35 kV AC Metal Seal Switchgear (neq IEC 60298:1990)

GB/ T 4109-1999 Technical specification of high voltage bushings (eqv IEC 60137:1995)

GB 4208-1993 Degrees of protection provided by enclosures (IP Code) (eqv IEC 60529:1989)

GB/T 5582-1993 External insulation pollution classes of high-voltage electric power equipments (neq IEC 60815:1986)

GB/T 7354-2003 Partial Discharge Measurement (IEC 60270:2000, IDT)

GB 7674-1997 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above (eqv IEC 60517:1990)

GB/T 11022-1999 Common specifications for high-voltage switchgear and controlgear standards (eqv IEC 60694:1996)

GB/T 14810-1993 AC high-voltage switches for rated voltages of 110kV and above (neq IEC 60265-2:1988)

IEC 60466:1987 AC insulation-enclosed switchgear and controlgear for rated voltage 1kV above to 38kV

IEC 60865-1:1993 Short-circuit currents - Calculation of effects- Part 1 Definition and calculation method

GB 1176-1987 铸造铜合金技术条件英文版

1 General rules
1.1 Designations of alloy
Refer to GB 8063-87 “Designations of non-ferrous metals and their alloys”.
1.2 Alloy name
Alloys are named according to percentage composition of alloy nominal composition in GB 8063-87. Such as 5-5-5 tin bronze, 38 brass, 25-6-3-3 aluminum brass etc.
1.3 Code of casting method
S - Sand casting
J - Metal mould casting
La - Continuous casting
Li - Rotational casting

GB 748-2005 抗硫酸盐硅酸盐水泥英文版

Sulfate-resistance Portland Cement

1. Scope

This national standard specifies the classification, terms and definitions, material requirements, strength level, technical requirements, test method, test rules, packaging, markings, transportation and storage.

This national standard is applicable to sulfate-resistance Portland cement.

2. Normative quoted documents

The following provisions become part of the national standard after being quoted. For documents marked with time, their amendments (amendments to errors excluded) or revised versions are inapplicable. However, it is encouraged that parties that have reached an agreement according to this standard discuss whether the latest edition of these documents can be adopted. For documents without date, their latest editions are applicable to this standard.

GB/T176 Method for chemical analysis of cement (GB/T176-1996, eqvISO680:1990)

GB/T749 Test method for potential expansion of Portland cement mortars exposed to sulfate

GB/T750 Autoclave method for soundness of Portland cement

GB/T1346 Test methods for water requirement of normal consistency,
setting time and soundness of cement (GB/T 1346 - 2001, egv ISO9597:1989)

GB/T5483 Gypsum and anhydrite

GB/T8074 Testing method for specific surface of cement-Blaine method

GB9774 Cement packaging bag

GB12573 Cement sampling procedure

GB/T17671 cement mortar strength test method (ISO method)
(GB/T17671-1999, idtISO679:1989)

JC/T667 Cement grinding aid

GB 715-1989 标准件用碳素钢热轧圆钢英文版

1 Subject content and scope of application
This standard stipulates dimension, shape, weight permissible variation, technical requirements, test method, test rules, packing, marking and certification of hot rolled round carbon steel bars for manufacturing screw nail, screw nut, screw bolt and rivet.
This standard is applicable to hot rolled round carbon steel bars for manufacturing screw nail, screw nut, screw bolt and rivet of cold upset forging or hot upset forging.
2 Normative references
GB 222 GB 222 chemolysis for steel uses sampling method and permit variation for finished product chemical composition
GB 223 Methods for chemical analysis of iron, steel and alloy
GB 228 Metallic materials-Tensile test
GB 233 Metallic materials-Upset forging test
GB 237 Metallic materials-Forging test
GB 2101 General requirements of acceptance, packaging, marking, and certification for section steel
GB 2975 Sampling stipulation for steels mechanics and technological performance test
GB 6397 Metallic materials--Test pieces for tensile testing

GB 700-88 碳素结构钢英文版

1. Subject content and application scopeThe code prescribed the technical conditions of carbon structure steel. The standard is suitable for general structural steel and hot-rolled steel plates, steel strip, formed steel and bar steel for works. The product can be used for weld, binding and bolting member. They are generally used under supply state. The chemical compositions prescribed in the standard is suitable for steel ingot (including continuous casting blank), steel billet and its products.
2. Cited standard
GB 222 Method of sampling steel for determination of chemical composition and permissible variations for product analysis.
GB 223 Method of chemical analysis on steel and alloy
GB 228 Metallic materials-tensile testing
GB 232 Metallic materials-bend testingGB 247 General rule of acceptance, package, mark and certification for steel plates (sheets) and strips
GB 2101 General rule of acceptance, package, mark and certification for profile steel
GB 2106 Metallic materials; Charpy impact test (V-notch)
GB 2975 Rules for sampling in mechanical and technological testing of steel products
GB 4159 Metallic materials; Charpy impact test at low temperature
GB 6397 Metallic materials-test pieces for tensile testing3. The denotation of number, code name and symbol

GB 699-1999 优质碳素结构钢英文版

National Standard of the People's Republic of China
GB/T 669-1999
Quality Carbon Structure Steels
Replace GB/T 699-1988

1. Aspect(s) Covered
This standard regulates size, shape, weight, tolerance, specification, testing method, inspection rules, package, mark and quality certificate of hot-rolled or hot-forged quality carbon structure steel.
This standard is applicable to quality carbon structure steel rod whose diameter or thickness is not greater than 250mm. Through negotiation between buyers and sellers, quality carbon structure steel rod whose diameter or thickness is greater than 250mm can also be supplied.
Grades and chemical composition prescribed in this standard are also applicable to steel ingot and steel billet products.
2. Normative Reference
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. All the Standards stated below are effective at the publication of this Standard. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.

GB/T 222-1984 Method of Sampling Steel for Determination of Chemical Composition and Permissible Variations for Product Analysis
GB/T224-1987 Determination of Depth of Decarburization of Steel
GB/T 226-1991 Etch Test for Macrostructure and Defect of Steels
GB/T 228-1987 Metallic Materials - Tensile Testing
GB/T 229-1994 Metallic Materials - Charpy Notch Impact Test
GB/T 231-1984 Metallic Materials - Brinell Hardness Test
GB/T 233-1982 Method for Forging Test of Metals
GB/T 702-1986 Hot-rolled Round and Square Steels - Dimension, Shape, Weight and Tolerance
GB/T 908-1987 Forged Round and Square Steels - Dimension, Shape, Weight and Tolerance
GB/T 1979-1980 Diagram of a Low Magnification Texture Blemish Grading of Structural Steel
GB/T 2101-1989 General Requirements of Acceptance, Packaging, Marking and Certification for Section Steel
GB/T 2975-1998 Steel and Steel Products - Location and Preparation of Test Pieces for Mechanical Testing
GB/T 4336-1984 Method for Photoelectric Emission Spectroscopic Analysis of Carbon Steel Medium and Low Alloy Steel
GB/T 6397-1986 Metallic Materials - Test Pieces for Tensile Testing
GB/T 7736-1987 Ultrasonic Inspecting Method for Macro-structure and Imperfection of Steel
GB/T 10561-1989 Steel - Determination of Content of Non-metallic Inclusion - Micrographic Method Using Standard Diagrams
GB/T 17616-1998 Unified Numbering System for Designations of Iron, Steel and Alloy
GB/T 13299-1991 Steel - Determination of Microstructure
GB/T 15711-1995 Steel Products - Method for Etch Test of Tower Sample
GB/T 17505-1998 Steel and Steel Products - General Technical Delivery Requirements
YB/T 5148-1993 Metal - Methods for Estimating the Average Grain Size

For normative reference of chemical analysis method for composition in steel, see Annex A (normative).

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