GB 16895.19-2002 Electrical installations in buildings Part 7: Requirements for special installations or locations Section 702: Swimming pools and other pools
Some standard content:
CB16895.19—2002
All technical contents of this standard are mandatory. Introduction
This standard is equivalent to 1EC60364-7-702:1997 Electrical installations of buildings Part 7: Requirements for special installations or locations Section 702 Swimming pools and other pools.
GB16895 Electrical installations of buildings" is divided into the following 7 parts under the general title Part 1: Scope, purpose and basic principles Part 2: Definitions
Part 3: Evaluation of general characteristics
Part 4: Safety protection
Part 5: Selection and installation of electrical equipment Part 6: Inspection
Part 7: Requirements for special installations or locations This standard is Section 702 of Part 7.
Appendix A (Summary of Main Protection Requirements) of this standard is a suggestive appendix. This standard was proposed by the China Electrical Equipment Industry Association. This standard is under the jurisdiction of the National Technical Committee for Standardization of Electrical Installations in Buildings. The responsible drafting units of this standard are: China Light Industry International Engineering Design Institute, China Aviation Industry Planning and Design Institute. Who drafted this standard: Huang Miaoqing, Wang Houyu. This standard is published for the first time.
This standard is entrusted to China Light Industry International Engineering Design Institute for interpretation. GB16B95.19—2002
IEC Foreword
1) IEC (International Electrotechnical Commission) is a worldwide standardization organization composed of all national electrotechnical committees (IEC National Committees). The purpose of IEC is to promote international cooperation on standardization issues in the electrical and electronic fields. For this purpose, among other activities, IEC publishes international standards. The preparation of standards is entrusted to technical committees; any IEC National Committee interested in the subject covered by the standard participates in this work. International, governmental and non-governmental organizations in contact with the EC also participate in this work. IEC and the International Organization for Standardization (ISO) work closely together under conditions determined by the cooperation between the two organizations. 2) IEC formal resolutions or agreements on technical issues are made by technical committees in which international committees with special interest in these issues participate, and express as far as possible an international consensus on the subject matter involved. 3) These resolutions or agreements published in the form of standards, technical reports or guidelines are recommended for international use and are recognized by the national committees in this sense. 4) In order to promote international consensus, IEC national committees should undertake to apply IEC international standards to the greatest extent possible in their national or regional standards. Any differences between IEC standards and corresponding national or regional standards should be clearly indicated in their national or regional standards:
5) IEC does not provide an identification procedure to indicate its approval and does not assume any responsibility for any equipment claimed to conform to its standards. 6) It should be noted that some parts of this international standard may be the subject of patent rights. IEC does not assume any responsibility for identifying part or all of such patent rights.
International Standard IEC 60364-7-702 has been prepared by IEC Committee 64 (Electrical Installations of Buildings): This second edition replaces the first edition of 1983 and forms a technical revision. The text of this standard is based on the following documents:
64/906/FDIS
Details of the voting for this standard are given in the table above. Annex A is for reference only.
Voting Results
64/969/RVD
GB16895.192002
IEC Introduction
The requirements specified in Part 7 are intended to supplement, modify or replace the general requirements of other parts of IEC 60364. The numbers added after Section 702 are the numbers of the corresponding parts, chapters, sections or clauses of IEC 60364. Any chapter, section or clause not mentioned means that the corresponding general requirements are still applicable.
National Standard of the People's Republic of China
Electrical installations of buildings-Part 7:Requirements for special installatlons or locationsSection 702:Swimming pools and other basins702 Swimming pools and other basins
702.1 Scope, purpose and basic principles
702.11 Scope
GB 16895. 192002
Idt IEC 60364-7-702: 1997
The special requirements of this standard apply to swimming pools, fountains and paddling pools. These requirements also apply to the areas around all these pools. These places increase the risk of electric shock during normal use due to the reduction of human body resistance and the contact between the human body and the ground potential. The requirements for swimming drains also apply to paddling pools, and special requirements may need to be specified for swimming filters used for medical purposes. 702.12 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB5013.1—1997 Rubber insulated cables with rated voltages of 450/750V and below Part 1! - General requirements (idt IEC 60245-1:1994)
Rubber insulated cables with rated voltages of 450/750V and below Part 4: Flexible cords and flexible cables GB 5013.41997
(idt IEC 60245-4:1994)
GB14821.1—1993 Protection against electric shock of electrical installations in buildings (eqvIEC60364-4-41:1992) GB16895.13-2002 Electrical installations in buildings Part 7, Requirements for special installations or locations Section 701: Locations with bathtubs or shower trays (idtIEC60364-7-701:1984) GB4208—1993 Degrees of protection of enclosures (IP code) (eqvIEC60529:1989) GB/T12501—1990 Classification of protection against electric shock of electrical and electronic equipment (neqIEC60536:1976) [EC60364-2-21:1993 Electrical installations in buildings Part 2: Definitions Section 21: Guide to general terms IEC 60598-2-18:1993
Lighting fixtures Part 2: Particular requirements Section 18: Lighting fixtures for ball pools and similar purposes
1 Common parts for electric shock protection devices and equipment IEC 61140:2001
Adoption instructions:
1] GB17015-1997 Common parts for electric shock protection devices and equipment are equivalent to IEC61140:1992 Common parts for electric shock protection devices and equipment"
Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on August 5, 2002, implemented on April 1, 2003
702.2 Definitions
702.2.21 Guidelines for general terms
GB 16895. 192002
This standard adopts the following definitions. For other general definitions, see [EC60364-2-21.702.2.21.1 Fountain
Pools that are not accessible to people.
The scope of fountains that allow people to enter shall be implemented in accordance with the relevant regulations and requirements for swimming pools. 702.3 Evaluation of general characteristics
702.32 Classification of external influences
The requirements listed in this clause are based on the size ranges of two areas (see Figures 702A, 702B, 702C, 702D and 702E for examples). ) Zone 0 This zone refers to the inner part of the pool, including the inlet part on the wall or ground of the pool and the pool for washing feet or the interior of the fountain column or artificial deep cloth.
b) Zone 1
The boundaries of this zone:
-Zone 0;
-2 meters from the edge of the pool m vertical surface;
ground or surface where people are expected;
a horizontal surface 2.5 m above the ground or surface. When the swimming pool is equipped with a diving platform, springboard, take-off platform, overflow ditch or other parts where people are expected, the area included in Zone 1 is limited to: a vertical surface 1.5 m from the diving platform, springboard, take-off platform, overflow ditch or other parts (such as accessible sculptures and decorative pools);
a horizontal surface 2.5 m above the highest surface where people are expected. e) Zone 2
The boundaries of this zone:
-1 vertical surface outside the zone and a vertical surface 1.5 m away from this vertical surface.Between parallel planes 5 m apart; between the ground or surface where people are expected to be and a horizontal plane 2.5 m above the ground or surface. There is no Zone 2 for fountains.
702.4 Safety protection
702.41 Protection against electric shock
1 For protection of power sockets, see 702.53.
2 For protection of other equipment, see 702.55.
702.411 Protection against both direct and indirect contact702.411.1 Protection by extra-low voltage: SELV and PELV702.411.1.4 Requirements for ungrounded circuits (SELV)702.411.1.4.3 When SELV is used, regardless of its nominal voltage, the following direct contact protection measures shall be taken: Barriers or outer shielding with a protection level of at least IP2X or IPXXB as specified in GB42081993, or insulation that can withstand a test voltage of 500 V AC for 1 minute. 702.412 Protection against electric shock under normal use (direct contact protection or basic protection)702.412.3 Protection by means of barriers
Protection by means of barriers is not applicable.
702.412.4 Protection by means of placement outside the reach of the arm is not applicable. 702.413 Contact protection
702.413.1.6 Auxiliary equipotential bonding
GB 16895. 19—2002
All external conductive parts of equipment in Zone 0, Zone 1 and Zone 2 shall be connected with equipotential bonding conductors and connected to the protective conductors of the exposed conductive parts of equipment in these areas. Note
1 The connection to the protective conductor may be made in the close proximity of electrical accessories, switchboards or other equipment. 2 See also Section 702.55.1.
702.413.3 The protection method using non-conductive locations is not applicable to the protection method using non-conductive locations. 702.413.4 The protection method using ungrounded local equipotential bonding is not applicable to the protection method using ungrounded local equipotential bonding. 702.47 Application of safety protection measures
702.471 Protection against electric shock
702.471.3 Special requirements for each zone
702.471.3.1 General
Except for fountain zones 0 and 1 mentioned in Section 702.471.3.2, only SELV protection methods with a nominal voltage not exceeding 12 V AC or 30 V DC are allowed. The safety power supply should be installed outside zones 0, 1, and 2 (see also Sections 702.53 and 702.55).
For equipment in the pool that is intended to be put into operation only when people are outside Zone 0, its power supply circuit should adopt one of the following protection methods: - SELV (see Article 5.1 of GB14821.1-1993), and its safety power supply should be installed outside Zone 0, Zone 1 and Zone 2; or a residual current protector with a rated residual operating current of no more than 30mA is used to automatically cut off the power supply (see Article 7.1 of GB14821.1-1993); or
- Electrical isolation (see Article 7.5 of GB 14821.1-1993), the isolated power supply only supplies power to one device, and the isolated power supply is installed outside Zone 0, Zone 1 and Zone 2.
The power sockets of the power supply circuits of these equipment and the control electrical appliances of these equipment should be equipped with warning signs to remind users that these equipment are only allowed to be used when there is no one in the swimming pool. 702.471.3.2 Zone 0 and Zone 1 of the fountain
Only the following protection measures can be applied in Zone 0 and Zone 1: - SELV (see Article 5.1 of GB 14821.1-1993), and its safety power supply should be installed outside Zone 0 and Zone 1; or use a residual current protector with a rated residual operating current not exceeding 30 mA to automatically cut off the power supply (see Article 7.1 of GB 14821.1-1993) or
electrical isolation (see Article 7.5 of GB14821.1-1993), and its isolated power supply should be installed outside Zone 0 and only supply power to one device:
702.471. 3-32 Zone
Note: The fountain has 2 zones.
One or more of the following protection measures should be adopted: - SELV (see Article 5.1 of GB 14821.1-1993), and its safety power supply should be installed outside Zone 0, Zone 1 and Zone 2; 1 or - a residual current protector with a rated residual operating current not exceeding 30 mA is used to automatically cut off the power supply (see Article 7.1 of GB 14821.1-1993); or
electrical isolation (see Article 7.5 of GB14821.1-1993), and its isolated power supply should be installed outside Zone 0, Zone 1 and Zone 2 and only supply power to one device.
702.5 Selection and installation of electrical equipment
702.51 General rules
702.512 Conditions of use and external influences
702.512.2 External influences
GB 16895.192002
Electrical equipment should have at least the following protection levels specified in GB4208-1993: - Zone 0: IPX8;
Zone 1: IFX5:
However, for swimming pools in buildings that are not usually cleaned by spraying water, IPX4 may be used. Zone 2: IPX2 for indoor places:
IPX4 for outdoor places:
IPX5 for places that are likely to be cleaned by spraying water. 702.52 Wiring system
702.520 General
The following provisions apply to visible wiring systems and wiring systems concealed in walls or the ground with a burial depth not exceeding 5 cm. 702.522 Selection and installation principles related to external influences 702.522.21 Installation method determined by area category Wiring systems in Zone 0, Zone 1 and Zone 2 should have no accessible metal sheaths. Inaccessible metal sheaths should be connected to auxiliary equipotential bonding.
Note: Cables are preferably installed in conduits made of insulating materials. 702.522.22 Restrictions on wiring systems according to zone category Wiring systems in Zone 0 and Zone 1 should be limited to lines that only supply power to equipment located in that zone. 702.522.23 Supplementary requirements for water spraying wiring The water ground shall meet the following additional requirements:
a) The cables of electrical equipment in zone 0 shall be as far away from the outer edge of the pool as possible, and the lines in the pool shall be connected to the equipment as short as possible. These cables shall be installed in conduits to facilitate line replacement. b) The laying of cables in zone 1 shall have appropriate mechanical protection. Only type 66 cables specified in GB 5013 or relays with at least equivalent performance shall be used. In addition to complying with the provisions of GB 5013.1 and GB5013-4, the manufacturer shall indicate the adaptability of the cable to long-term contact with water. 702.522.24 Junction box
Junction boxes are allowed to be installed for SEIV circuits in zone 1, and other junction boxes shall not be installed in zones 0 and 1. 702.53 Switchgear and controlgear
Switchgear or controlgear and power sockets shall not be installed in zones 0 and 1. For small swimming pools where it is impossible to install power sockets and switches outside Zone 1, it is allowed to install sockets and switches preferably with non-metallic covers (or covers) in Zone 1, but the installed power sockets and switches should be installed outside the hip extension range (1.25 m) from the outer edge of Zone 0, and their position should be at least 0.3 m above the ground. In addition, one of the following protection measures should be adopted: SELV with a nominal voltage not greater than AC 25V or DC 60V (see Article 5.1 of GB14821.1-1993), its safety power supply should be installed outside Zone 0 and Zone 1; or www.bzxz.net
--Use a residual current protector with a rated residual operating current not greater than 30 mA to automatically cut off the power supply (see Article 7.1 of GB 14821.1-1993) or
electrical isolation (see Article 7.5 of GB14821.1-1993), each device is powered by a separate isolated power supply, and its isolated power supply should be installed outside Zone 0 and Zone 1.
Power sockets and switches are allowed to be installed in zone 2, but the power supply circuit should adopt one of the following protection measures: SELV (see Article 5.1 of GB14821.1-1993), and its safety power supply should be installed outside zone 0, zone 1 and zone 2; use a residual current protector with a rated residual operating current of no more than 30 mA to automatically cut off the power supply (see Article 7.1 of GB 14821.1-1993) or
: electrical isolation (see Article 7.5 of GB14821.1-1993), each device is powered by a separate isolated power supply, and its isolated power supply should be installed outside zone 0, zone 1 and zone 2.
702.55 Other equipment
702.55.1 Swimming pool electrical equipment
GB 16895. 192002
Only fixed electrical equipment dedicated to swimming pools can be installed in Zone 0 and Zone 1, but the requirements of Articles 702.55.2 and 702.55.4 must be considered.
Electrical appliances that are only put into operation when people are outside Zone 0 can be used in all areas, but their power supply circuits should be protected in accordance with the provisions of Article 702.471.3.
Heating elements buried in the ground can be installed after taking the following protective measures: Use SEI.V (see Article 5.1 of GB14821.1-1993). Its safety power supply is installed outside Zone 0, Zone 1 and Zone 2 or covered with a metal grid or metal sheath buried underground and grounded. The metal grid or metal sheath is connected to the auxiliary equipotential connection specified in Article 702.413.1.6, but its power supply circuit should use a residual current protector with a rated residual operating current of no more than 30mA as a supplementary protection measure.
702.55-2 Underwater lighting for swimming pools
Lighting fixtures used underwater or in contact with water should comply with the provisions of TEC 60598218. Underwater lighting fixtures located behind and illuminating from behind watertight viewing windows shall comply with the provisions of the relevant parts and chapters of IEC 60598 and shall be installed so that no intentional or unintentional conductive connection occurs between any exposed conductive part of the underwater lighting fixture and its accessories and any conductive part of the viewing window.
702.55-3 Electrical equipment in fountains
Electrical equipment in zones 0 and 1 shall be inaccessible, for example protected by gridded glass or grids that can only be removed with tools. Lighting fixtures in zones 0 and 1 shall be fixed and shall comply with the provisions of IEC 60598-2-18. Electric pumps shall comply with the requirements of IEC 60335-2-41. 702.55.4 Special requirements for the installation of low-voltage electrical equipment in Zone 1 of swimming pools and other pools Fixed equipment dedicated to swimming pools and other pools (such as filter pools, fountains) powered by low voltage (excluding SELV whose nominal voltage is not greater than AC 12V or DC 30V) is allowed to be installed in Zone 1 but must meet all of the following requirements: a) These devices should be installed in an outer sheath with the equivalent of additional insulation, which should be able to withstand mechanical shock of AG2 level. Note: The application of this clause is not related to the classification of protection against electric shock of the equipment. Class II equipment still needs to be connected to a protective conductor. b) These equipment can only be touched by movable windows (or doors) that can be opened with a key or tool. When opening the movable window (or door), all live conductors should be disconnected, and the power cable and main switch should be Class II anti-electric shock structures or installed in a manner that can provide equivalent protection. c) When the movable window (or door) is opened, the enclosure protection level of the equipment should still be at least IPXXB. d) The power supply circuit of the equipment should adopt the following protection measures: - Use SELV with a nominal voltage not greater than AC 25 V or DC 60 V, and its safe power supply is installed outside Zone 0, Zone 1 and Zone 2 or
Use a residual current protector with a rated residual operating current not greater than 30 mA; or electrical isolation (see Article 7.5 of GB 14821.1-1993), and the isolated power supply is installed outside Zone 0, Zone 1 and Zone 2. For small swimming pools where it is impossible to install lighting fixtures outside Zone 1, if the lighting fixtures are installed within the hip extension range (1.25 m), the lighting fixture is allowed to be installed in Zone 1, but one of the following protection measures should be adopted: adopt SELV protection; or
install a residual current protector with a rated residual operating current not greater than 30mA; or - electrical isolation (see Article 7.5 of GB 14821.1-1993), and the isolated power supply is installed outside Zone 0 and Zone 1. In addition, the luminaire should have the anti-electric shock performance of Class 1 equipment or equivalent insulation performance and have an outer shield that can withstand AG2 level mechanical shock.
Region\
GB 16895. 19-2002
Appendix A
(Suggestive Appendix)
Main protection requirements
Table A1 Protection measures that can be adopted in different areas Protection measures
SEL.V Measure high voltage?
12 V ac or 30 V dc
50 Va.c. or 120 Vd.cs
50 V ac or 120 V dc
12 V ac or 30 V dc
50 V ac or 120 V dc
25 V ac or 60 V dc
50 V ac or 120 V dc
No relevant content
50 Va.c. or 120 Vd.c.
B Only applicable to the lower fountain
Electrical isolation
Number of connected devices
Not applicable
Not applicable
No relevant content
When a person is at 0 When the area is outside, the same circuit that supplies power to the dining room in the pool C
D power socket and switch
E power socket and switch for small swimming pool
automatically cuts off the power supply
Not applicable
S30mA RCD
≤30 mA RCD
≤30mA RCD
≤30mA RCD
No relevant content
S30mA RCD
2) See also Article 702.411.1.4.3, and the installation location of its safety power supply sees Article 702,471.3.1. 3) See Article 702,512.2.
4) There is no such area for fountains.
5) For lighting, limited to 12 V ac or 30 V dc Note: RCD is a residual current device. Table A2 Selection and installation of equipment in different zones Zone 0
Wiring system
Junction box
Switchgear and controlgear (except power sockets and switches)
Power sockets and switches
Other equipment:
Equipment specifically for use in swimming pools
Heating elements buried in the ground
Underwater lighting
Water spraying equipment
Fixed equipment installed in zone 1
Installed in zone 1 Zone identification devices
1) See also Table A1.
See 702.522
Not allowed
Not allowed
Not applicable
Not applicable
Not allowed
(See notes)
Not applicable
(See notes)
Not applicable
(See notes)
Not applicable
No Zone 2
Not applicable
Not applicable
According to the article number
According to Article number
702.471.3.1
702.471.3.2
702.471.3.1
702.471.3.1
702.471.3.2
702.471.3.3
Equipment housing
Protection level
IPX5/4
IPX2/4/5
702.522.24 When using SFT.V, it can be installed in Zone 1 702.531
Special protection measures are required in Zone 2. In small swimming pools, 702.5311
702. 55. 3
Full pool zone 1: It must be placed at least 1.25m beyond the edge of zone 0 and at least 0.3m above the ground. Special design is required. SELV is used. The buried grounding metal grid has special requirements. Zone 0 and zone 1 have special requirements. The requirements for lighting fixtures are as follows. Special requirements are required. GB 16895. 19--2002
Note: The measured zone size is limited to the pond wall and partition. 5
777777777777777777777
Figure 702A Area dimensions of swimming pools and paddling pools
Note: The measured area dimensions are limited to the walls and partitions. Figure 702B
Area dimensions of pools above the ground
GB 16895.19—2002
Figure 702C is equipped with a height of at least 2.Example of area dimensions (plane) of fixed partitions of 5m
Dimensions: m
2=51-51-8s
F1=Fg-51-52
T5-Fg-5+5,
Dimensions: m
Fi-- Fa+z
rp= rg +$z
Fh=F+h
f--1:-54
Figure 702D Example of area dimensions (plane) with fixed partitions (see Figure 702A for places with bathtubs) S
Dimensions, m
Boundaries of the area
GB 16895. 19—2002
Figure 702F
Example of determining the area of a fountain
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