GB 31094-2014Safety rules for the construction and installation of lifts for explosive atmospheres (English PDF)

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.

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.

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.

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.

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.

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.

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.

Flammable substance 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 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.

Explosive atmosphere 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 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 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 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 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