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[GB/T 16895.27-2012] Low-voltage electrical installations -- Part 7-705: Requirements for special installations or locations -- Agricultural and horticultural premises
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Electrical installations of buildings -- Part 7: Requirements for special installations or locations -- Section 705 -- Electrical installations of agricultural and horticultural premises
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Basic data | Standard ID | GB 16895.27-2012 (GB16895.27-2012) | | Description (Translated English) | [GB/T 16895.27-2012] Low-voltage electrical installations -- Part 7-705: Requirements for special installations or locations -- Agricultural and horticultural premises | | Sector / Industry | National Standard | | Classification of Chinese Standard | Q77 | | Classification of International Standard | 91.140.50 | | Word Count Estimation | 20,294 | | Older Standard (superseded by this standard) | GB 16895.27-2006 | | Quoted Standard | GB 7000.208; GB 7000.6; GB 7000.9; GB 7000.218; GB 7000.1; GB 7000.17; GB 7000.18; GB 7000.19; GB 7000.2; GB 7000.5; GB 7000.4; GB 7000.7; GB 7000.219; GB 7000.202; GB 7000.217; GB 7000.204; GB 7000.213; GB 7000.211; GB 7000.212; GB 7000.201; GB 7000.225; | | Adopted Standard | IEC 60364-7-705-2006, IDT | | Regulation (derived from) | National Standards Bulletin No. 13 of 2012 | | 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 Chinese standard provides for agricultural and horticultural facilities, indoor and outdoor fixed electrical installations. Some require also be used in other places, such as belonging to the common agricultural and horticultural facilities construct |
GB 16895.27-2012: [GB/T 16895.27-2012] Low-voltage electrical installations -- Part 7-705: Requirements for special installations or locations -- Agricultural and horticultural premises ---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Low-voltage electrical installations.Part 7-705. Requirements for special installations or locations.Agricultural and horticultural premises
ICS 91.140.50
Q77
National Standards of People's Republic of China
Replacing GB 16895.27-2006
Low-voltage electrical installations
Requirements for special installations or locations. Section 7-705
Agricultural and horticultural facilities
Part 7-705. Requirementsforspecialinstalationsorlocations-
(IEC 60364-7-705.2006, IDT)
Issued on.2013-05-01 2012-06-29 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
Introduction Ⅳ
705.11 Scope 1
705.12 Normative references 1
705.20 Terms and Definitions 2
705.312 Distribution System type 2
2 Type 705.312.2 system grounding
705.4.41 Protection against electric shock 3
705.411 Protective measures. Auto power off 3
705.411.1 Overview 3
705.414 Protective measures. The SELV and PELV extra low voltage 3
705.414.4 requirements for SELV and PELV circuits 3
705.415.2 Additional protection. supplementary protection equipotential bonding 3
705.4.42 thermal effects protection 3
705.422 Fire precautions 3
705.443 pairs atmospheric over-voltage or over-voltage protection operation 4
705.5.51 electrical equipment selection and installation --- General Rule 4
705.512 operating conditions and external influences 4
705.512.2 external influences 4
705.513 accessibility 4
Accessibility 705.513.2 livestock 4
705.514 Identification 4
705.514.5 diagram 4
705.52 electrical equipment selection and installation of wiring systems --- 4
705.522 and external influences associated cabling system selection and installation 4
705.522.16 ducts, pipes and tank cartridge system 5
705.53 Selection and erection of electrical equipment --- isolation, continuity and control 5
705.536 isolation and off 5
705.536.2 isolation 5
--- Selection and installation of electrical equipment grounding 705.54 configuration, protective conductors and protective bonding conductors 5
705.544 Protective bonding conductor (equipotential bonding conductor) 5
705.544.2 auxiliary protective bonding conductor 5
705.55 electrical equipment selection and installation of other equipment 6 ---
705.55.1 socket 6
705.556 safe power supply 6
705.556.8 high density livestock automated life support system 6
705.559 lamps and lighting fixtures 6
Example equipotential bonding Appendix A (informative) agricultural facilities 7
Appendix B (normative) barrier and outriggers 12 range
Annex C (normative) Electrical installations only be controlled or under skilled technician or trained personnel to monitor
Use of protective measures 13
Figure A.1 equipotential bullpen internal coupling Example 8
Example 9 Figure A.2 bullpen potential connection within the ring, etc.
Example Figure A.3 void of concrete structures ground manure collected equipotential bonding 10
Example A.4 bullpen Neto foundation earth electrode configuration 11
Foreword
All technical content in this section is mandatory.
GB 16895 "Buildings (low voltage) electrical apparatus" is divided into five sections.
--- Part 1. Fundamental principles, assessment of general characteristics and definitions;
--- Part 4. Safety;
--- Part 5. Selection and erection of electrical equipment;
--- Part 6. Inspection;
--- Part 7. requirements for special installations or locations.
This section is part of the 7 GB 16895.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB 16895.27-2006 "Electrical installations of buildings Part 7. Requirements for special installations or locations Section 705
Section agricultural and horticultural facilities. "
This section compared with GB 16895.27-2006, the main technical changes are as follows.
--- For the high-density livestock premises involved, it puts forward new requirements (see 705.556.8);
--- For residential and other premises belonging to the agricultural and horticultural facilities proposed requirements (see 705.312.2.1);
--- For electrical equipment, for example, for use in possible danger of fire and mechanical damage of properties in harsh environments cabling system,
The light emitting device, the power outlet proposed additional requirements (see 705.422.6,705.422.7,705.422.8);
--- Terminal circuits made using RCD protection requirements (see 705.411.1).
This section identical with IEC 60364-7-705.2006 "the first low-voltage electrical installations Part 7-705. special installations or locations to
Demand for agricultural and horticultural facilities. " This part of IEC 60364-7-705.2006 (2nd edition), compared reg numbers for identification, technical content
Identical, but made the following editorial changes.
--- Use the decimal symbol instead of decimal symbol ",". ",";
--- Deletion of the IEC standard "foreword";
--- In the "low-voltage electrical installations - Part 7-705. Requirements for special installations or locations - Agricultural and horticultural facilities", there are other countries
Application of the criteria of our country has nothing to do with the note is omitted in this standard.
Consistency correspondence between this part of international documents and normative references of our files are as follows.
--- GB 2099.1 household and similar purposes plugs and sockets - Part 1. General requirements (IEC 60884-1.2006, MOD)
--- GB 7000.17-2003 Safety requirements of luminaires with limited surface temperatures (IEC 60598-2-24.1997, IDT)
--- GB/T 11918-2001 industrial use - Part 1 plug and socket coupler. General requirements (idt, IEC 60309-1.1999)
Electrical accessories pin and tube accessories of. --- GB/T 11919-2001 industrial plug and socket coupling - Part 2
Dimensional interchangeability requirements (idtIEC 60309-2.1999)
--- GB 16895.4-1997 Electrical installations of buildings - Part 5. Selection and erection of electrical equipment Chapter 53. switch
Preparation and control equipment (idtIEC 60364-5-53.1994)
--- GB/T 19215.2-2003 Electrical installation Cable trunking and ducting systems - Part 2. Particular requirements - Section 1. Installation
Cable trunking and ducting systems on walls or ceilings (IEC 61084-2-1.1996IDT)
This part of the National Standardization Technical Committee of electrical building equipment (SAC/TC205) and focal points.
This section is responsible for drafting unit. electrical machines in Design and Research Institute.
The main drafters of this section. Wang Zengyao, Hexiang Kun, Huang Baosheng.
This part of the standard replaces the previous editions are.
--- GB 16895.27-2006.
Introduction
The requirements of this section is to supplement, modify or replace some of the content in general requirements GB 16895 in other parts.
This section follows the provisions of GB 16895 number of models and make the appropriate references.
No later connected to the dedicated Section 7-705 is GB 16895 part number or a corresponding clause number.
Of this section or section is not listed, it means that the corresponding GB 16895 General requirements still apply.
Low-voltage electrical installations
Requirements for special installations or locations. Section 7-705
Agricultural and horticultural facilities
705.11 Scope
This section provides a fixed electrical installations to agricultural and horticultural facilities, indoor and outdoor. Some requirements are also used to make other
Places, such as public buildings and facilities belonging to agricultural and horticultural facilities.
As family houses and similar applications, locations and regions, it is not included in this section.
If some special requirements of Section 705 is also applicable to other places such as residential and public buildings like that, which in this section
The body will be described.
705.12 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 all repair orders) applies to this document.
GB 7000 (all parts) lamps [IEC 60598 (all parts)]
IEC 60598-2-24 Safety requirements of luminaires with limited surface temperatures (Luminaires-Part 2-24. Particularrequirements-
Luminareswithlimitedsurfacetemperatures)
IEC 60309-1 industrial plug and socket couplers - Part 1. General requirements (Plugs, socket-outletsandcouplers
forindustrialpurposes-Part 1. Generalrequirements)
IEC 60309-2 industrial plug and socket coupling - Part 2. pin and tube accessories electrical accessories interchangeability dimensions
Requirements (Plugs, socket-outlets and couplers for industrial purposes-Part 2. Dimensional
interchangeabilityrequirementsforpinandcontact-tubeaccessories)
Part 5 IEC 60364-5-53 Electrical installations of buildings. Selection and erection of electrical equipment Chapter 53. Switchgear and control
Device (Low-voltageelectricalinstalationsofbuildings-Part 5-53. Selectionanderectionofelectrical
equipment-lsolation, switchingandcontrol)
IEC 61084-2-1 for electrical installations cable trunking and ducting systems - Part 2. Particular requirements - Section 1. for installation in a wall or ceiling
Board cable trunking and ducting systems (Cabletrunkingandductingsystemsforelectricalinstalations-Part 2.
Particularrequirements-Section1. Cabletrunkingandductingsystemsintendedformountingon
walsorceilings)
Safety - Part 2-71 IEC 60335-2-71 Household and similar electrical appliances. breeding and rearing animals with electrical heating appliances
Particular requirements (Householdandsimilarelectricalappliances-Safety-Part 2-71. Particularrequirements
forelectricalheatingappliancesforbreedingandrearinganimals)
IEC 60364-5-55 low-voltage electrical installations - Part 5. Selection and erection of electrical equipment Chapter 55. Other equipment (Low
voltageelectricalinstalations-Part 5-55. Slectionanderectionofelectricalequipment-Otherequip-
ment)
IEC 61386-21 for electrical installations - Part 21 Catheter System. Particular requirements - Rigid conduit systems (Conduitsystems
forcablemanagement-Part 21. Particularrequirements-Rigidconduitsystems)
IEC 60884-1 for household and similar purposes plugs and sockets - Part 1. General requirements (Plugsandsocket-outletsfor
householdandsimilarpurposes-Part 1. Generalrequirements)
705.20 Terms and Definitions
The following terms and definitions apply to this document.
705.20.1
Agricultural and horticultural facilities agriculturalandhorticulturalpremise
For the following purposes houses, places or regions.
--- Livestock;
--- Feed, fertilizers, plant and animal production, storage, preparation or processing;
--- Seedling cultivation, such as. Greenhouse
Note. Agricultural and horticultural facilities, due to special external influences, such as chemical vapor moisture, dust, corrosive, acid or salt for electrical equipment Movies
Sound as electrical equipment selection and installation, suitable for special requirements. In addition, because there is a strong flammable substances may increase fire
Danger disaster. Agricultural and horticultural facilities include, for example.
--- As animals such as cattle, pigs, horses, sheep, goats Habitat homes and sheds, including the neighboring houses (for example, feed processing sites, milking farm machinery
The milk storage room);
--- For hay, straw, feed, fertilizer, grain, potatoes, sugar beet, vegetables, fruits, ornamental plants and the fuel stack rooms, warehouses and storage rooms,
greenhouse;
--- Commercial and/or mass production, preparation and processing (drying, cooking, squeeze, fermentation, slaughtering, meat processing, etc.) of agricultural and horticultural products
place.
705.20.2
Agricultural and horticultural facilities belonging to residential and other places residencesandotherlocations
belongingtoagriculturalandhorticulturalpremises
Homes and other places outside through the protective conductor or conductive part of the same unit, and agricultural and horticultural facilities conductive connection.
Note 1. Examples of other places including offices, meeting room, mechanical workshop, studio, washing libraries and shops.
Note 2. The portion of the outside world is not conductive part of electrical installations, but it is easy to introduce hazardous potential (see GB/T 2900.71-2008 in 826-11-
03 definition).
Note 3. Examples of conductive connection of metal piping systems, protect the metal sheath conductor or the same electrical wiring system.
705.20.3
High-density livestock high-densitylivestockrearing
Livestock breeding and rearing, need an automated system to protect their lives.
Note 1. Examples of automated life support system, such as ventilation, feeding and air conditioning.
Note 2. The high-density livestock Examples include. pig, chicken breeding plants, inland water fish farms and fish farms in artificial lake.
705.20.4
Arrangement of livestock arrangementsforlivestockkeeping
Housing and room (used as animal Habitat homes), animal cages, farms or other containers of food for livestock continuous residence used.
Type 705.312 Distribution System
Type 705.312.2 system grounding
705.312.2.1 TN system
Supplemented as follows.
Electrical device connected to the workplace TN systems, electrical devices from power supply terminal started the following should be used neutral conductor and protective conductor separation
body. This requirement also applies, by definition 705.20.2 belongs to agricultural and horticultural facilities, residential and other places.
705.4.41 Protection against electric shock
705.411 Protective measures. Auto power off
705.411.1 Overview
Supplemented as follows.
In the loop, either type of grounding system should provide the following sub-breaker.
--- The rated current is less than 32A power socket terminal loop using IΔn not exceeding 30mA residual current operated
protector;
--- The rated current greater than 32A power socket terminal loop, using no more than 100mA IΔn residual current operated
protector;
--- In all other circuits, using no more than 300mA IΔn residual current operated protective devices.
NOTE. In the need to improve the operational continuity of the circuit used is not greater than the rated residual operating current of 300mA residual current operated protective devices appropriate for the type S
, Or delay.
705.414 Protective measures. The SELV and PELV extra low voltage
705.414.4 SELV and PELV circuits to requirements
705.414.4.5 is the use of protective measures in SELV and PELV place, no matter what kind of nominal voltage, protection against direct contact
(Basic protection) should use one of the following measures.
--- To provide at least the IP ×× B or IP2 × degree of protection cover bar or housing, or
--- Insulation can withstand the root mean square value of 500V AC voltage 1min.
705.415.2 Additional protection. supplementary protection equipotential bonding
705.415.2.3 expected in livestock used in place should be secondary protective equipotential bonding, all the animals could hit the outer
Exposed conductive parts and external conductive parts are connected. Laid in the ground on a metal mesh, it should also be included in place of a supplementary protection
Equipotential bonding within (see Appendix A illustration).
External conductive parts, either in the ground or on the ground, for example, a conventional reinforced concrete or for storing liquefied
Cellar reinforced fertilizer, should be part of a supplementary protection equipotential.
Void of concrete prefabricated elements recommendations made by the voids of the ground, and other links is seen as part of the potential (see Figure A.3).
Supplementary protection equipotential bonding and wire mesh (if any) of the installation should be able to prevent lasting damage to mechanical stress and corrosion.
705.4.42 thermal effects protection
705.422 Fire Protection Measures
Increased sub-clause.
705.422.6 livestock breeding and feeding electrical heating appliances used, shall comply with IEC 60335-2-71, and should be fixed installation
In place to avoid.
--- Livestock burn any danger; and
--- Any danger from the fire ignited flammable material.
If the heater manufacturer in the instruction manual does not provide for a greater distance, the radiant heater should be set at a distance and livestock
Distance from flammable material of at least 0.5m.
705.422.7 To prevent fire, should be set with a rated residual operating current not exceeding 300mA residual current device (see
705.411). Residual current protection should cut off all live conductors, the need to improve the operational continuity of the circuit not protected socket
Residual current device should be S-shaped, or delay.
Note. residual current protection in accordance with the requirements of 705.413.1 used as a protective circuit terminal, it can also play an effective fire protection.
705.422.8 in places with fire danger, return conductor by the extra-low voltage power supply, the protection should be provided in line with both the use of energy
IP ×× D or IP4 × degree of protection to hide the column or housing, can also use the cladding of insulating material, attached to the basic insulation.
705.443 pairs atmospheric over-voltage or over-voltage protection operation
Added Note.
Note. The use of electronic devices place, it is recommended in accordance with the provisions of GB/T 21714.3 and GB/T 21714.4, the use of lightning protection measures; and follow
GB 16895.12-2001 in 443 and 534 GB 16895.22-2004 used for over-voltage protection measures.
705.5.51 electrical equipment selection and installation --- general rules
705.512 operating conditions and external influences
705.512.2 outside influence
Supplemented as follows.
In the agricultural and horticultural facilities, while electrical equipment under normal conditions of use, should have a minimum of IP44 degree of protection, in IP44
Lower level can not meet the requirements of the situation, it should be provided in compliance with IP44 enclosure inside.
Power outlet should be installed in the premises is unlikely to contact with combustible material place.
In the external influence conditions > AD4, > AE3 and/or > AG1 occasion to deal with a power outlet to provide adequate protection.
You can also use additional housing or by means of protective measures installed in the depression of the building.
These requirements do not apply to those residential properties belonging to agricultural and horticultural facilities, offices, shops and the field has a similar outside influences
That, in these places, the power outlet should be consistent with the requirements of IEC 60884-1.
In places with a corrosive substance, for example, dairy farm, cow, electrical equipment should have the appropriate protective measures.
705.513 accessibility
705.513.2 livestock accessibility
Livestock should be no closer to the electrical equipment, equipment for the inevitable close thereto, for example, feeding equipment and water tank, in order to avoid damage,
It should be properly constructed and installed to minimize the risk of damage to livestock.
705.514 Identification
705.514.5 sketch
Users 705.514.5.3 electrical installations should be access to and control of the following documents.
--- Electrical equipment layout plan; and
--- Concealed cabling road map; and
--- Distribution system one-line diagram; and
--- Indicate the junction point of the equipotential bonding Fig.
705.52 electrical equipment selection and installation of wiring systems ---
Selecting and installing 705.522 and external influences associated cabling system
Supplemented as follows.
Livestock and can be installed closer to their place of captivity, cabling system wiring should be made inaccessible to livestock, or with appropriate protective machine
Mechanical damage of protective measures.
Overhead lines should be insulated.
In the area of agricultural facilities, motor vehicles and mobile agricultural machinery occasion, should adopt the following installation methods.
--- Cable buried in the ground to a depth of at least 0.6m; with the additional mechanical protection;
Note 1. The raceway is used as additional protection where they should withstand 450N pressure level of protection, and, in accordance with IEC 61386-24
Provisions of the collision can provide the required level of protection.
--- Of arable farming land or buried cable depth of at least 1m;
--- Self-supporting suspension cables erected height of at least 6m.
Note 2. The cable buried in the ground is the preferred installation method.
705.522.6.3 the supply side of the electrical device to the main power distribution panel wiring system, if there is no RCD protection, should also be protected against mechanical
Damage protection, for example, buried in the soil, or mounted in separate closed cable tray or conduit system.
This requirement should also apply to homes and other premises belonging to the agricultural or horticultural facilities.
705.522.10 should pay special attention is the presence of different species of animals, such as mice and rats.
705.522.16 ducts, pipes and tank cartridge system
Livestock premises, outside influence is classified as AF4 level. In accordance with IEC 61386-21, the catheter used indoors it
Corrosion has at least grade 2 (moderate) degree of protection role, and for outdoors, for the Level 4 (advanced protection)
The wiring system may be due to motor vehicles and agricultural machinery and other movable and subjected to mechanical impact extrusion, for this place, outside
The impact should be classified as AG3 level.
--- In accordance with IEC 61386-21, the catheter extrusion having at least four (severe) degree of protection;
--- In accordance with IEC 61386-21, the cable tray and conduit systems for stamping should provide serious type of protection.
705.53 Selection and erection of electrical equipment --- isolation, on-off and control
Only a running visual indication of the location of the electrical heater can be used.
705.536 isolation and Continuity
705.536.2 isolation
In accordance with the requirements of GB 16895.22-2004 of each building or part of a building's electrical system, you should use a separate, isolated
Device isolation.
Circuit occasional use (for example, during the harvest period), including all live conductors, including the neutral conductor should adopt quarantine measures.
Isolating device shall be marked out which part belongs to the electrical device.
Where livestock is possible to reach places, or there may have been impeded in any position of livestock, are not isolated and should be installed off the device,
As well as an emergency stop or emergency operating device.
Wherever possible to make livestock panic events are to be considered.
--- Selection and installation of electrical equipment grounding 705.54 configuration, protective conductors and protective bonding conductors
705.544 Protective bonding conductor (equipotential bonding conductor)
705.544.2 auxiliary protective bonding conductors
Protection (equipotential) bonding conductor should be protected against mechanical damage and corrosion measures, and should be used to avoid the effects of electrolytic conductor.
Such as the choice of the following conductors.
--- Size of at least 30mm × 3mm hot galvanized flat steel; or
--- Diameter of at least 8mm of hot galvanized steel bar; or
--- Minimum cross-sectional area of 4mm2 copper conductor.
You can also use other suitable materials.
705.55 Selection and erection of electrical equipment --- other devices
705.55.1 socket
Outlets for agricultural and horticultural facility shall comply with IEC 60309-1 or IEC 60309-2 (when present exchange requirements) and rated current
Over the relevant provisions of 20A socket.
705.556 safe power supply
705.556.8 high density livestock automated life support system
High-density livestock, animal issue as a life support system operation to be considered as follows.
a) a power failure and can not be guaranteed food, water, air and/or place for livestock supply lighting should be used for safety power supply
As an alternative or backup power (see also GB/T 16895.18 in 551). To supply ventilation and lighting devices should be
Set up a separate terminal loop. Such a circuit should only supply to the ventilation and lighting work as necessary for electrical equipment.
b) to the main circuit power ventilation shall be guaranteed under any circumstances over current and/or shorted to ...
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