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GB 16895.27-2012 English PDF

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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
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GB 16895.27: Evolution and historical versions

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GB 16895.27-2012English519 Add to Cart 4 days [Need to translate] [GB/T 16895.27-2012] Low-voltage electrical installations -- Part 7-705: Requirements for special installations or locations -- Agricultural and horticultural premises Valid GB 16895.27-2012
GB 16895.27-2006English199 Add to Cart 3 days [Need to translate] Electrical installations of buildings -- Part 7: Requirements for special installations or locations -- Section 705 -- Electrical installations of agricultural and horticultural premises Obsolete GB 16895.27-2006

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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Older Standard (superseded by this standard) GB 16895.27-2006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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