GB/T 21711.1-2023 (GB/T 21711.1-2008) PDF EnglishUS$150.00 · In stock · Download in 9 seconds
GB/T 21711.1-2008: Electromechanical elementary relays -- Part 1: General and safety requirements Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Obsolete GB/T 21711.1: Historical versions
Similar standardsGB/T 21711.1-2008: Electromechanical elementary relays -- Part 1: General and safety requirements---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT21711.1-2008GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 29.120.70; 31.220.99 L 25 GB/T 21711.1-2008 / IEC 61810-1.2003 Electromechanical elementary relays – Part 1.General and safety requirements (IEC 61810-1.2003, IDT) Issued on: APRIL 11, 2008 Implemented on: SEPTEMBER 1, 2008 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee. Table of ContentsForeword... 4 1 Scope... 5 2 Normative references... 6 3 Terms and definitions... 8 4 Influence quantities... 20 5 Rated values... 21 6 General provisions for testing... 24 7 Documentation and marking... 25 8 Terminations... 28 9 Sealing... 30 10 Insulation resistance and dielectric strength... 30 11 Heating... 33 12 Basic operating function... 37 13 Heat and fire resistance... 38 14 Electrical endurance... 39 15 Mechanical endurance... 40 16 Clearances, creepage distances and solid insulation... 41 Annex A... 48 Annex B... 51 Annex C... 52 Annex D... 53 Annex E... 56 Annex F... 58 Annex G... 60 Annex H... 62 Annex I... 67 Annex J... 68 Annex K... 69ForewordGB/T 21711 Electromechanical elementary relays consists of the following parts. - Part 1.General and safety requirements; - Part 2.Reliability; - Part 7.Test and measurement procedures. This Part is the first part of GB/T 21711 Electromechanical elementary relays. This Part is identical with IEC 61810-1.2003 Electromechanical elementary relays - Part 1.General and safety requirements (English version). For easy of use, this Part makes the following editorial changes. a) deleted IEC foreword; b) footnotes in tables used lowercase English letters to meet writing requirements for national standards; c) used decimal point “.” to replace the “,” that acts as decimal point; d) used “this Part” to replace “this international standard”. Annex A, Annex B, Annex D, Annex E, Annex F, Annex H, Annex I, Annex J, Annex K of this Part are normative; Annex C, Annex G are informative. This Part was proposed by Ministry of Information Industry of the People’s Republic of China. This Part shall be under the jurisdiction of National Technical Committee on All or Nothing Relays of Standardization Administration of China. The drafting organization of this Part. China Electronics Standardization Institute (CESI). Main drafters of this Part. Wang Jue, Shi Xinyuan. Electromechanical elementary relays – Part 1.General and safety requirements1 ScopeThis Part applies to electromechanical elementary relays (non-specified time all or-nothing relays) for incorporation. It defines the basic safety-related and functional requirements for applications in all areas of electrical engineering or electronics, such as. • general industrial equipment, • electrical facilities, • electrical machines, • electrical appliances for household and similar use, • information technology and business equipment, • building automation equipment, • automation equipment, • electrical installation equipment, • medical equipment, • control equipment, • telecommunications, • vehicles, • transportation, • etc. Compliance with the requirements of this Standard is verified by the type tests indicated. In case the application of a relay determines additional requirements exceeding those specified in this Standard, the relay should be assessed in line with this application in accordance with the relevant IEC standard(s) (for example IEC 60730-1.1999, IEC 60335-1.1991, IEC 60950-1.2001).2 Normative referencesThe following standards contain the provisions which, through reference in this Part, constitute the provisions of this Part. For dated references, subsequent amendments (excluding corrections) or revisions do not apply to this Part. However, the parties who enter into agreement based on this Part are encouraged to investigate whether the latest versions of these documents are applicable. For undated reference documents, the latest versions apply to this Part. GB/T 16935.1-1997 Insulation coordination for equipment within low- voltage systems. Part 1.Principles, requirements and tests (idt IEC 60664- 1.1992) Amendment 1 (2000) Amendment 2 (2002) GB 17196-1997 Connecting devices - Flat quick-connect terminations for electrical copper conductors - Safety requirements (idt IEC 61210.1993) GB/T 19405.1-2003 Surface mounting technology - Part 1.Standard method for the specification of surface mounting components (SMDs) (idt IEC 61760-1.1998) IEC 60038.1993 IEC standard voltages Amendment 1 (1984) Amendment 2 (1997) IEC 60050 International Electrotechnical Vocabulary IEC 60068-2-17.1994 Basic environmental testing procedures - Part 2. Tests - Test Q. Sealing IEC 60068-2-20.1979 Basic environmental testing procedures - Part 2. Tests - Test T. Soldering Amendment 2 (1987) IEC 60085.1984 Thermal evaluation and classification of electrical insulation IEC 60112.2003 Method for the determination of the proof and the comparative tracking indices of solid insulating materials IEC 60335-1.1991 Safety of household and similar electrical appliances - Part 1.General requirements IEC 60364-4-44.2001 Electrical installations of buildings Part 4-44. Protection for safety - Protection against voltage and electromagnetic disturbance IEC 60417-DB.2002 Graphical symbols for use on equipment IEC 60695-2-2.1991 Fire hazard testing - Part 2.Test methods - Section 2. Needle flame test Amendment 1 (1994) IEC 60695-2-10.2000 Fire hazard testing - Part 2-10.Glowing/hot-wire based test methods - Glow-wire apparatus and common test procedure IEC 60695-10-2.1995 Fire hazard testing - Part 10-2.Guidance and test methods for the minimization of the effects of abnormal heat on electrotechnical products involved in fires - Method for testing products made from non-metallic materials for resistance to heat using the ball pressure test Amendment 1 (2001) IEC 60721-3-3.1994 Classification of environmental conditions - Part 3-3. Classification of groups of environmental parameters and their severities – Stationary use at weather protected locations Amendment 1 (1995) Amendment 2 (1996) IEC 60730-1.1999 Automatic electrical controls for household and similar use - Part 1.General requirements IEC 60947-5-1.1997 Low-voltage switchgear and controlgear - Part 5-1. Control circuit devices and switching elements - Electromechanical control circuit devices Amendment 1 (1999) Amendment 2 (1999) IEC 60950-1.2001 Information technology equipment - Safety - Part 1. General requirements IEC 60999-1.1999 Connecting devices - Electrical copper conductors - Safety requirements for screw-type and screwless-type clamping units - Part 1.General requirements and particular requirements for clamping units for ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. |
