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GB 31094-2014 English PDF

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GB 31094-2014: [GB/T 31094-2014] Safety rules for the construction and installation of lifts for explosive atmospheres
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GB 31094-2014English729 Add to Cart 5 days [Need to translate] [GB/T 31094-2014] Safety rules for the construction and installation of lifts for explosive atmospheres Valid GB 31094-2014

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Basic data

Standard ID GB 31094-2014 (GB31094-2014)
Description (Translated English) [GB/T 31094-2014] Safety rules for the construction and installation of lifts for explosive atmospheres
Sector / Industry National Standard
Classification of Chinese Standard Q78
Classification of International Standard 91.140.90
Word Count Estimation 28,220
Date of Issue 12/12/2014
Date of Implementation 6/1/2015
Quoted Standard GB 3836.1-2010; GB 3836.2-2010; GB 3836.3; GB 3836.4-2010; GB 3836.5; GB 3836.6; GB 3836.8; GB 3836.9; GB 3836.13; GB 3836.15-2000; GB 3836.16; GB 3836.18; GB/T 7024-2008; GB 7588-2003; GB 12476.1-2013; GB 12476.2; GB 12476.4; GB 12476.5; GB 12476.6; GB 1
Regulation (derived from) National Standards Bulletin 2014 No. 30
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 explosive atmosphere defined in GB 25285.1-2010 1 and Zone 2 and Zone 21 explosive dust situations, additional safety guidelines explosion elevator manufacturing and installation should comply with the 22 area used. This Standa

GB 31094-2014: [GB/T 31094-2014] Safety rules for the construction and installation of lifts for explosive atmospheres


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Safety rules for the construction and installation of lifts for explosive atmospheres ICS 91.140.90 Q78 National Standards of People's Republic of China Explosion-proof elevator manufacturing and installation of safety norms Issued on. 2014-12-22 2015-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 4 major risk list 5 safety requirements and protective measures 6 6 10 use of information 7 Inspection and Maintenance 11 Appendix A (normative) electrical components and non-electrical components ignition hazard assessment 13 Appendix B (normative) explosion-proof electrical component cable entry 18 Annex C (normative) explosion-proof elevator routine maintenance and periodic inspections 20 References 23

Foreword

All technical contents of this standard is mandatory. This standard was drafted in accordance with GB/T 1.1-2009 rules. This standard by the National Standardization Technical Committee elevator (SAC/TC196) and focal points. This standard is drafted by. Southeast Elevator Company. Participated in the drafting of this standard. the high Haideshengmi Elevator Co., Ltd., China Academy of Building Research Construction Mechanization Research Branch, on Gimhae Technology Research Institute of Special Equipment Inspection, Shanghai Mitsubishi Elevator Co., Ltd., West Otis Elevator Co., Thyssen Elevator Co. The company, Giant Kone Elevator Co., Ltd., Guangdong Special Equipment Inspection Institute, Suzhou Dili Austrian Elevator Co., Ltd., Suzhou Kodak Hydraulic Elevator Co. The company, Shanghai Housing Equipment Co., Ltd., Hebei Dongfang Machinery Co., Ltd. Fidelity. The main drafters of this standard. Kang Hongqiao, Ma Yiping, Hu Fumin, Chenfeng Wang, Xue love season, Yao Jun, Jing Ge Gan, Wen Aimin, Yejia Fang, Bu group, Chen Shiming, including satellites, Zhou Zhong Da, Jia Yan Hua. This standard is the first release.

Introduction

0.1 According to GB/T 15706, this standard was C standard. 0.2 according to the standard design and manufacture of explosion-proof elevator installation is also subject to GB 7588, GB 21240 or GB 25194 requirements, if present Standard provisions and requirements of these standards is not the same, give priority to this standard. 0.3 standard is based on the following assumptions. a) building structures meet the following requirements. 1) to prevent rain, snow and water from entering the explosion-proof elevator shaft and machinery space; 2) prevention of toxic and corrosive gases into the explosion of the elevator shaft and machinery space; 3) the machine space with good ventilation; 4) Buildings with lightning measures; Refractory grade 5) in line with the architectural design of a building fire code requirements. b) have agreed on the following issues between the owners or customers and suppliers. 1) the use of explosion-proof elevator; 2) Explosion-proof elevator conditions; 3) and civil engineering problems; 4) within the hoistway and machine configuration space requirements for explosion-proof power facilities; 5) matters relating to the rescue with explosion-proof elevator; 6) within the explosion-proof elevator handling of safe work practices. Explosion-proof elevator manufacturing and installation of safety norms

1 Scope

1.1 GB 25285.1-2010 standard specifies defined in explosive gas atmospheres 1 and Zone 2 and Zone 21 explosive dust situations, Additional safety guidelines for use in Zone 22 explosion elevator manufacturing and installation to be followed. 1.2 This standard applies to the rated speed of not more than 1m/s, power-driven hoisting ceremony, compulsory and hydraulic elevator explosion-proof elevator Design, manufacture, installation, inspection and maintenance. 1.3 In the special case. Explosion elevator (such as inclement weather conditions and seismic conditions, etc.) used in addition to meeting the requirements of this standard, the sit Taking into account the special requirements. 1.4 This standard does not apply to. Explosion lift a) GB 25285.1-2010 Zone 0 explosive gas atmospheres defined and combustible dust for use in zone 20 Manufacture and installation; b) produced by the explosion of combustible material other oxidants react with atmospheric oxygen in addition to outside, or by other hazardous reactions, as well as non-atmospheric conditions Members produce elevator explosion hazardous area use; c) Prior to implementation of this standard manufacturing and installation of explosion-proof elevator.

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 3836.1-2010 explosive atmospheres - Part 1. General requirements for equipment GB 3836.2-2010 explosive atmospheres - Part 2. the flameproof enclosure "d" protection equipment GB 3836.3 explosive atmospheres - Part 3. the increased safety "e" protection equipment GB 3836.4-2010 Explosive atmospheres - Part 4. the intrinsically safe "i" protection equipment GB 3836.5 Electrical apparatus for explosive gas atmospheres - Part 5. type pressurized enclosure "p" GB 3836.6 Electrical apparatus for explosive gas atmospheres - Part 6. Oil - immersion "o" GB 3836.8 Electrical apparatus for explosive gas atmospheres - Part 8. "n" electrical apparatus GB 3836.9 Electrical apparatus for explosive gas atmospheres - Part 9. Encapsulation "m" GB 3836.13 Explosive atmospheres - Part 13. Equipment repair, overhaul, repair and renovation GB 3836.15-2000 Electrical apparatus for explosive gas atmospheres - Part 15. Electrical installations in hazardous locations (except coal mines) GB 3836.16 Electrical apparatus for explosive gas atmospheres Part 16. Electrical installations inspection and maintenance (other than mines) GB 3836.18 Explosive atmospheres - Part 18. Intrinsically safe systems GB/T 7024-2008 elevators, escalators, moving walkways term GB 7588-2003 elevator manufacturing and installation of safety norms GB 12476.1-2013 combustible dust Electrical Equipment Part 1. General requirements GB 12476.2 combustible dust electrical equipment - Part 2. Selection and installation GB 12476.4 combustible dust electrical equipment Part 4. Intrinsic safety "iD" GB 12476.5 combustible dust electrical equipment - Part 5. Housing protection type "tD" GB 12476.6 combustible dust electrical equipment - Part 6. protective encapsulation "mD" GB 12476.7 of combustible dust electrical equipment - Part 7. protective positive pressure "pD" GB/T 18775 elevators, escalators and moving walkways maintenance specifications GB 21240-2007 hydraulic elevator manufacturing and installation of safety norms GB/T 24478-2009 elevator hoisting machine GB 25194-2010 debris elevator manufacturing and installation of safety norms GB 25285.1-2010 explosive atmospheres explosion prevention and protection - Part 1. Basic Principles and Methods GB 25286.1-2010 non-electrical equipment for explosive atmospheres - Part 1. Basic method and requirements GB 25286.2 Non-electrical equipment for explosive atmospheres - Part 2. limiting shell type "fr" GB 25286.3 Non-electrical equipment for explosive atmospheres - Part 3. flameproof enclosure type "d" GB 25286.5 Non-electrical equipment for explosive atmospheres - Part 5. Security-type structure "c" GB 25286.6 Non-electrical equipment for explosive atmospheres - Part 6. Control type ignition source "b" GB 25286.8 Non-electrical equipment for explosive atmospheres - Part 8. liquid immersion "k" GB 50257 electrical equipment installation engineering explosion and fire hazard electrical equipment installation and acceptance Electrical equipment - Part 28 IEC 60079-28 Explosive atmospheres. radiation protection optical transmission systems and equipment (Explosiveatmospheres-Part 28. Protectionofequipmentandtransmissionsystemsusingopticalradiation) EN13463-1.2009 potentially explosive atmospheres using non-electrical equipment Part 1. Basic method and requirements (Non- electricalequipmentforuseinpotentialyexplosiveatmosphere-Part 1. Basicmethodandrequirements)

3 Terms and Definitions

GB 3836, GB 12476, GB 25285 and GB 25286 series of standards, GB/T 7024-2008, GB 7588-2003, GB 21240-2007 and GB 25194-2010 defined in the following terms and definitions apply to this document. 3.1 Explosion-proof elevator liftforexplosiveatmospheres By a number of electrical components and non-electrical components, according to a predetermined condition design, manufacture and installation without causing explosive atmosphere surrounding fuel Burning or explosion elevator. NOTE. rewrite GB/T 7024-2008, the definition of 2.9. 3.2 Electrical components electricalelement All or part of the use of power can achieve its intended function of elevator components, such as control cabinets, and other host drive. The sub-standard electrical components Explosion-proof electrical components and other electrical components. NOTE. rewrite GB 3836.1-2010 defined in 3.14. 3.3 Explosion-proof electrical components electricalelementforexplosiveatmospheres The conditions required design, manufacture and installation without causing a fire or explosion explosive atmosphere surrounding electrical components having a risk of ignition. 3.4 Non-electrical components non-electricalelement Do not use electricity can reach its intended function of elevator components, such as safety gear, buffers and the like. The standard non-explosion-proof electrical components into non Electrical components and other non-electronic components. NOTE. rewrite GB 25286.1-2010 defined in 3.7. 3.5 Non-explosion-proof electrical parts non-electricalelementforexplosiveatmospheres The conditions required design, manufacture and installation without causing a fire or explosion explosive atmosphere surrounding the non-electrical ignition risk having part. 3.6 Flammable substance flammablesubstance When the matter was ignited, an exothermic reaction occurs with atmospheric gas, vapor, liquid, solid state or a mixed state of these forms. [GB 25285.1-2010, Definition 3.1] 3.7 Explosive mixture explosivemixture Under atmospheric conditions, of flammable substances air mixture gas, vapor, mist, dust or fibrous and, after igniting the entire range In the rapid spread of the formation of explosive mixture. 3.8 Explosive atmosphere explosiveatmosphere Under atmospheric conditions, the flammable substance gases, vapors, dusts, fibers or in the form of Fei Xu and air mixture can be ignited after Enough to keep the spread of self-combustion environment. [GB 3836.1-2010, the definition 3.22] 3.9 Explosive gas atmospheres explosivegasatmosphere Under atmospheric conditions, the mixture of air and flammable substances gas, vapor or mist formed ignite a fire or explosion would spread throughout Environmental unburned mixture. NOTE. rewrite GB 3836.1-2010, the definition 3.24. 3.10 Combustible dust flammabledustatmosphere Under atmospheric conditions, the mixture of fibrous dust or flammable substance and air ignited, a fire or explosion would spread to the entire unburned mixed Environmental thereof. NOTE. rewrite GB 12476.1-2000, definitions 3.4. 3.11 The maximum surface temperature maximumsurfacetemperature Explosion-proof elevator explosion-proof electrical components and non-electrical components work within the allowable range specified under the most adverse conditions, exposed to explosion Any part of the surface of the bombing of the mixture around the electrical component likely to cause the maximum temperature of an explosive mixture explosive. Note 1. The surface corresponding to the inner surface temperature may be the temperature, the temperature may be outside surface, depending on the type of protection flameproof or availability. Note 2. rewrite GB 3836.1-2010, the definition and 3.30 GB 25286.1-2010, definitions 3.5. 3.12 Explosion-proof type typeofprotection To prevent ignition of the surrounding explosive atmosphere and explosion-proof elevator to take various specific measures. NOTE. rewrite GB 3836.1-2010, the definition 3.42. 3.13 Ignition source potentialignitionsource Elevator explosion may appear on any potential ignition source. NOTE. rewrite GB 25286.1-2010, definitions 3.8. 3.14 Running normaloperation Explosion-proof electrical and mechanical elevator in the meet the design specifications and operating conditions within the range specified by the manufacturer's. Note 1. The range specified by the manufacturer include continuous operating conditions. Note 2. The power supply voltage varies within a predetermined range, and any other operational tolerance are normal operation. Note 3. rewrite GB 3836.1-2010, the definition 3.31. 3.15 Expected failure expectedmalfunction Occur in normal operation elevator explosion damage or failure. NOTE. rewrite GB 3836.1-2010, the definition of 3.29.1. 3.16 Rare malfunctions raremalfunction Is known to occur, but only in rare circumstances will the fault type. Two independent expected failure, appears alone does not produce points Burning dangerous, but danger ignite co-occur, they are considered a rare failure. [GB 3836.1-2010, the definition 3.29.2] 3.17 Associated equipment associatedapparatus Built-in intrinsically safe circuits and non-intrinsically safe circuits and in structure so that non-intrinsically safe circuits can not produce for intrinsically safe circuits The adverse effects of the electrical components. NOTE. rewrite GB 3836.1-2010, the definition of 3.2. 3.18 Machinery space machineryspace Internal or external wells placed throughout the space or part of the machine.

4 major risk list

4.1 This chapter includes a significant hazard, hazardous situations and events, all involved in this standard and by risk assessment is identified as a major risk And shall take measures to control or reduce the hazard. Major Hazard 4.2 standard covered in Table 1, Table 2, Table 3 and Table 4 below. Table 1 is a significant risk hazardous situations and events --- Architecture and Environment No. hazard significant risk, hazardous situations and events of this standard Clause No. 1 gas Corrosive media into the shaft/machine space to produce corrosion-proof elevator Effects (mild), toxic media into the shaft/machine space to users Cause health hazards 0.3a) 2) 2 gases, dust Combustible material change, explosion-proof elevator category, level and temperature group Impact 5.2.2.6 3 gas, dust Explosive ring changes flammable material source of release, due to the accumulation of state Change throughout the region 5.1.3,5.2.2.6 4 flammable, combustible Effect of building materials and products to the shaft/machine space, such as the building structure Member uses a combustion material 0.3a) 5), 5.1.1 5 flammables, combustibles shaft/machine space to store flammable materials such as linoleum, oiled paper, etc. 5.1.1 6 temperature, pressure, oxygen content of the climate on explosive atmospheres, such as wind, temperature, humidity, etc. 5.1.4 Table 2 is a significant risk hazardous situations and events --- electrical components No. hazard significant risk, hazardous situations and events of this standard Clause No. Object or material of a high temperature Electric work (normal operation electric heat), such as inverters, motors, The surface of the heat generated by electrical lighting, transformers, and other bleeder resistor 5.2.2.8,5.3.1,5.3.4

2 hot objects or materials

Accident Electric (fever accident state), such as wiring devices wiring termination Bad touch, electric motors, electrical circuit design no margin, overload, short-circuit When heat is generated 5.3.1

3 electric arc or spark

Work sparks, such as relays, contactors, circuit breakers and inductance, Sparks capacitance electrical components generated when the work 5.3.1,5.3.4

4 electric arc or spark

Accident sparks, insulation performance degradation caused by a short circuit, such as loosening the circuit contacts Arc fault discharge 5.3.1 5 static external electrostatic discharge electrical components Table A.3 Conductor around 6 induction electromagnetic radiation electromagnetic radiation may produce energy instantly mutation table A.4 7 Selection of error does not apply to explosion-proof electrical components for explosive environment in which 5.2.2.1,5.2.2.2,5.2.2.3, 5.2.2.4,5.2.2.5 8 optical radiation optical radiation energy electrical components can ignite 5.2.2.5, Table A.5 Table 3 major hazards, hazardous situations and events --- non-electrical components No. hazard significant risk, hazardous situations and events of this standard Clause No. 1 mechanical sparks sparks generated by the impact of 5.4.2, Table A.1 2 hot surface by the high temperatures generated by friction 5.4.2, Table A.2 3 static non-electrical components external electrostatic discharge Table A.3 4 Selection error-proof electrical components do not apply to non-explosive environment in which 5.2.2.1,5.2.2.2,5.2.2.3, 5.2.2.4,5.2.2.5 Table 4 major hazards, hazardous situations and events --- installation and other No. hazard significant risk, hazardous situations and events of this standard Clause No. Arc, flame, spark or Mechanically generated sparks Explosion-proof elevator installation, repair or maintenance of open flames or sparks (eg Welding, drilling, etc.) 5.5.1.1, Table A.1 No. 2 Collision Table A.1 No. 10 car into the second mechanical sparks or goods transport 3 mechanical sparks sparks caused by illegal operation 5.5.1.1, Table A.1 No. 2

4 Mechanical Sparks

Material impact sparking may fall to the bottom of the car, pit, empty machine Ground between Table A.1 No. 2 5 installation does not regulate the use of cable glands or the introduction of device failure 5.5.4.1 Arc, spark or high temperature Objects, materials In the presence of explosive mixtures case of exposed live electrical parts explosion (this Except quality safety circuit) to install or repair 5.5.1.1 7 hot surfaces, electric arc or spark intrinsically safe, non-intrinsically safe circuits mixed 5.5.3.1 Static electricity, or charged electrical spark The gas Uncharged bare metal portion of the ground non-standard or invalid 5.5.5.1 4.3 Standard danger due to fire in the building, other building equipment or container explosion caused the collapse of the formation is not involved.

5 safety requirements and protective measures

5.1 Requirements Architecture and Environment 5.1.1 Building materials machinery space, wells and use the pit should not burn the body or flame-retardant materials. Machinery space and the pit should be kept Put flammable items, such as tarpaulins, greaseproof paper and the like. 5.1.2 machinery space, shaft and the pit should take measures to prevent the accumulation of dust and to facilitate cleaning. 5.1.3 When the flammable substance density greater than the density of air, the pit should prevent the accumulation of combustible matter a lot; when small combustible material density Air density at the time, should prevent the top of the hoistway and machine space between the top of a lot of accumulation of flammable material. 5.1.4 explosion-proof elevator working environment. --- Machinery space ambient temperature is 5 ℃ ~ 40 ℃; --- Hoistway ambient temperature of -20 ℃ ~ 40 ℃; Atmospheric --- machine work is 80kPa ~ 110kPa; Standard oxygen content in the air --- the whole workplace (volume ratio) of not more than 21%. Explosion-proof elevator under conditions beyond this range should be used for special consideration and may require an increase in assessed and tested. 5.2 The basic requirements for explosion-proof elevator 5.2.1 General Ground form 5.2.1.1 elevator explosion in low voltage distribution system should be TN-S system. NOTE. The standard refers to the low-pressure AC 500V and below the power frequency voltage. 5.2.1.2 Explosion-proof elevator should have the elevator rescue trapped in an explosive environment measures. 5.2.1.3 Explosion elevator should have in an explosive atmosphere, without opening the control cabinet to detect and remove the control cabinet outside the intrinsically safe system Fault function, intrinsically safe system failures include at least the items listed in Table 5. Fault detection by observing the control cabinet or equipment outside the box Display or viewer unit implementation. Table 5 intrinsically safe system fault table No. Fault description

1 intrinsically safe safety circuit and door lock circuit fault

2 intrinsically safe circuit maintenance operation, emergency electrical operation circuit and emergency alarm circuit malfunction

3 intrinsically safe circuit gate control system failure

4 intrinsically safe boxes and call boxes operated circuit fault

5 intrinsically safe lock ladder, fire and weighing circuit fault 6 intrinsically safe car position feedback devices (such as limit switches and door zone, etc.) circuit failure 5.2.1.4 intrinsically safe system shall meet the requirements of GB 3836.18. 5.2.2 Explosion-proof elevator selection and non-electrical explosion-proof electrical components and parts 5.2.2.1 elevator explosion explosive mixture should use the environment to adapt. The same area of memory in two or more different to explosion When seeking the explosive mixture should be selected with the highest explosion explosive mixture adapted explosion elevator. 5.2.2.2 shall determine the categories and explosion-proof elevator level based on the type of flammable substance, its selection principles are shown in Table 6. Table 6 explosion-proof category and class of the elevator and Selection Explosion-proof elevator and category level suitable for use in explosion-proof category and class ⅡA ⅡA, ⅡB and ⅡC ⅡB ⅡB and ⅡC ⅡC ⅡC ⅢA ⅢA, ⅢB and ⅢC ⅢB ⅢB and ⅢC ⅢC ⅢC Note. this table explosion-proof category and class of ⅡA elevator, ⅡB, ⅡC, ⅢA, ⅢB, ⅢC classification principles, see Chapter 4 GB 3836.1-2010. 5.2.2.3 elevator explosion should be determined according to temperature class of explosion of flammable material type, its selection principles are shown in Table 7. Table 7 explosion-proof elevator groups and temperature selection Temperature group The maximum surface temperature Suitable for use in temperature class T1 450 T1 ~ T6 T2 300 T2 ~ T6 T3 200 T3 ~ T6 T4 135 T4 ~ T6 T5 100 T5, T6 T6 85 T6 Note. this table for explosion group temperature class T1 ~ T6 principle see GB 3836.1-2010 5.3. 5.2.2.4 should be different characteristics of an ignition source and the possibility of an explosive atmosphere, combustible dust has become under explosion-proof elevator The explosion-proof elevator prescribed level of protection, its choice of Table 8. Table 8 Explosion protection levels elevator and Selection Explosion protection level applicable to the elevator area Gb 1 and Zone 2 Gc District 2 Db 21 and Zone 22 Dc 22 District Note. This table GB 3836.2-2010 reference tables H.2. 5.2.2.5 shall determine the explosion-proof electrical components and non-electrical components suitable type of protection depending on the area of explosive environment, its selection Principles Table 9. Table 9 explosion-proof type explosion-proof electrical and non-electrical components and parts selection Explosion-proof type Explosion-proof electrical parts protection level protection level of non-electrical components Gas dust environment environmental gas atmospheres dust environment Gb Gc Db Dc Gb Gc Db Dc Intrinsically safe ia, ib ia, ib, ic iD iD - - - - Flameproof enclosure/housing protection type dd tD tD dddd Increased safety ea e - - - - - - Oil/liquid immersion type oo - - kkkk Pressurized px, py px, py, pz pD pD pppp Encapsulation ma, mb ma, mb mD mD - - - - Sand filled qq - - - - - - Enclosures and surface temperature limitation -b - DIPA21, DIPB21 DIPA22, DIPB22 - - - - Non-sparking - n - - - - - - Ignition light radiation protection op-is, op-pr, op-sh op-is, op-pr, op-sh - - - - - - Control ignition sources - - - - bbbb Limit flow rate housing - - - - - fr - fr Structural safety type - - - - cccc See a GB 3836.15-2000,5.2.2; b "-" indicates not applicable. 5.2.2.6 explosive atmosphere following changes, it should meet the following requirements. a) explosive mixture changes, elevator explosion category and temperature class should be re...

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