The specific requirements of this section apply to bathtubs and areas around them where the risk of electric shock increases due to the reduction of human body resistance and the contact of the human body with the ground potential. GB 16895.13-2002 Electrical installations of buildings Part 7: Requirements for special installations or locations Section 701: Locations with bathtubs or shower basins GB16895.13-2002 Standard download decompression password: www.bzxz.net

GB16895.13—2002
All technical contents of this standard are mandatory. Foreword
This standard is equivalent to IEC60364-7-701:1984 "Electrical installations in buildings Section 701 Places with bathtubs or shower trays". GB16895 "Electrical installations in 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 places This standard is Section 701 of Part 7: Requirements for special installations or places. This standard is proposed by China Electrical Equipment Industry Association. This standard is drafted by the National Technical Committee for Standardization of Electrical Installations in Buildings. The responsible drafting unit of this standard is China Architecture Northeast Design Institute. The main drafters of this standard are Li Xinglin and Ye Ping. This standard is entrusted to China Architecture Northeast Design Institute for interpretation. Part 7, Set of requirements for special installations or locations
GB16B95.13—2002
IEC Preface
1) [EC formal resolutions or agreements on technical issues.1. are formulated by technical committees composed of national committees that are particularly concerned with these issues, and express international consensus on the issues involved as much as possible. 2) These resolutions or agreements are used internationally in the form of standards and are accepted by various national committees in this sense. 3) In order to promote international unification, IEC hopes that all national committees will adopt IEC standards in their respective national regulations under the conditions permitted by their domestic conditions. If there are any inconsistencies between IEC standards and corresponding national regulations, they should be clearly pointed out in the national regulations as much as possible.
IEC ForewordbzxZ.net
This standard was proposed by IEC Technical Committee 64: Electrical Installations in Buildings. The draft was discussed at the Anacapri Conference in 1981 and the resulting draft, Document 64 (Central Office) 123, was submitted to the National Committees for approval in April 1982 under the "six-month rule". The National Committees of the following countries voted to publish it: Australia
Austria
Israel
Italy
New Zealand
Romania
Former Soviet Union
Other IEC Publication: Publication 60669-1°: Switches for household and similar fixed electrical installations Part 1: General requirements. Adoption instructions:
11EC60669-1 has two versions, namely 1981, 1993, and 1998. my country's national standard GB16915.11997 Switches for household and similar fixed electrical installations Part 1: General requirements is equivalent to 1EC60669-1:1993, and the corresponding national standard of my country is being formulated to correspond to IEC60669-1:1998.
National Standard of the People's Republic of China
Electrical installations of building
Part 7! Requirements for special installations or locations Section 70: Electrical installations of buildiags Part 7: Requirements for speclal installations or locations-Section 701: Locations containing a bath tub or shower basin700.1 cited
GB16895.132002
idt IEC 60364-7-7D1:1984
The provisions of Part 7 are used to supplement, amend or cancel the general requirements in other parts of IEC60364. The numbers added after the specific section numbers in Part 7 correspond to the numbers of the chapters, sections or articles in JE60364. Any chapter, section or article numbers of IEC60361 that are not listed means that the general requirements of these articles are applicable in this section. 701 Places with bathtubs or shower trays
701.1 Scope of application
The specific requirements of this section apply to bathtubs, shower trays and their surrounding areas where the risk of electric shock is increased due to the reduction of human body resistance and the contact of human body with ground potential.
Except for 70 1.53b), these requirements do not apply to prefabricated enclosed shower rooms with built-in shower trays and drainage systems. Note: Special requirements may be required for locations with bathing pools for medical purposes. 701.3 Evaluation of general characteristics
701.32 Division of zones
These requirements are based on the dimensions of four zones (see Figures 701A and 701B for examples). - Zone 0
The interior of the bathtub or shower tray;
---Boundaries of Zone 1
The vertical plane surrounding the bathtub or shower tray, or for locations without shower trays, the vertical plane 0.6 m from the shower head, the ground and the horizontal plane 2.25 m above the ground; -2 Boundary of Zone
The vertical plane outside Zone 1 and the vertical plane 0.6m away from it, the ground and the horizontal plane 2.25m above the ground; Boundary of Zone 3
The vertical plane outside Zone 2 and the vertical plane 2.4m away from it, the ground and the horizontal plane 2.25m above the ground. The specified dimensions have taken into account the thickness of the basin wall and the surrounding partition ends (see b), d), and f) in Figure 701A). 701.4 Safety protection
701.41 Protection against electric shock
Note: For protection of sockets, see 701.53g).
Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on 2002-02-28 Implementation on 2003-03-01
GB16895.13—2002
701.411.1.3.7\J Where safety extra-low voltage 2 is used, regardless of its nominal voltage, the following measures shall be adopted to achieve direct contact protection:
--Shielding or outer protection with a minimum protection level of IP2×; or--Insulation capable of withstanding a test voltage of 500V for 1 min. 701.413.1.6 Auxiliary equipotential bonding
Local auxiliary equipotential bonding shall connect the external conductive parts of all installations in zones 1, 2 and 3 to the protective conductors of all exposed conductive parts located in these zones.
701.471 Application of electric shock protection measures
701.471.0 In zone 0, only protective measures with a nominal medium voltage not exceeding 12V are allowed, and the safety power supply should be located outside zone 0.
701.471.1 Protective measures such as barriers (6.3 in GB1314821) and those placed outside the reach of arms (6.4 in GB14821) are not allowed.
701.471. 2
2 Protective measures such as non-conductive places (7.3 in GB14821) and ungrounded equipotential bonding (7.4 in GB14821) are not allowed.
701.5 Selection and installation of electrical equipment
701. 51 General
701.512.2 Electrical equipment should have the following minimum protection level: Zone 0: IP×7
Zone 1: ×5
Zone 2: IP× 4
! In public baths: IP×5
Zone 3: [P×1
701.52 Wiring system*
701.520.01 The following provisions apply to open wiring systems and internal wiring systems with a buried depth of no more than 5 cm. 701.520.02 The insulation of the wiring system shall comply with the provisions of 7.2 of GB14821, without any metal outer sheath. Note: For example: This wiring can be composed of a single-core cable in an insulating tube or a multi-core cable with an insulating outer layer. 701.520.03 In zones 0, 1 and 2, only wiring systems necessary to supply power to electrical appliances in the zone are allowed. 701.520.04: Junction boxes are not allowed in zones 0.1 and 2. *
The corresponding chapter in the general requirements is under examination. Adoption instructions:
1]411.1.3.7 is the number of this article in the second edition of 1EC60364-4-41:1982 Electrical Installations of Buildings Part 4: Safety Protection Chapter 41 Protection against Electric Shock. In the third edition of this standard, the number of this article has been changed to 411.1.1. In the Chinese national standard G14821.1-1993 Electric shock protection for electrical installations in buildings, which is equivalent to the third edition of this standard, this clause is numbered 5.1.4.3. 2] The term "safety extra low voltage" has been changed to "extra low voltage (ELV), SELV and PELV" in GB14821.11993.Due to changes in the name and connotation of the term, this standard still uses "safety extra-low voltage". 3 In IEC60364-7-701:1981, the article is numbered 412.3, 4] In IEC60364-7-701:1984, the article is numbered 412.4. 51 In IEC60364-7-701:19B4, the article is numbered 413.3. 6] In IEC 60364-7-701:1984, the article is numbered 413.4. 7] IEC60364-5-52:1993 "Electrical installations in buildings Part 5: Selection and installation of electrical equipment Chapter 52: Wiring system" has been issued and adopted as the Chinese national standard GB16B95.6-2000 "Electrical installations in buildings Part 5: Selection and installation of electrical equipment Chapter 52: Wiring system".
B_In IEC The number of this article in 60364-7-701:1984 is 113.2.701.53 Switchgear and control equipment
GB16895.13—2002
a) Switchgear and accessories should not be installed in zones 0.1 and 2. Note: Insulated pull cords of pull cord switches specified in GB16915.1 are allowed to be installed in zones 1 and 2. In zone 3, sockets are allowed to be installed only in the following cases: or they are powered by an isolation transformer that meets the requirements of 7.5.11 in GB14821; or they are powered by a safety extra-low voltage (5.12 in GB14821); or they are protected by a residual current operated protector with a residual operating current I△ not exceeding 30mA. b) The distance from any switch and socket to the door of the prefabricated shower room shall not be less than 0.6m (see Figure 701C). 7 01.55 Other fixed equipment
These requirements do not apply to electrical appliances powered by safety extra-low voltage in accordance with 5.1\ and 701.411.1.3.7 of GB14821.
In zone 0, only appliances dedicated to bathtubs are allowed; in zone 1, only water heaters are allowed
In zone 2, only water heaters and Class I lighting fixtures are allowed. Electric heating elements buried in the ground for place heating can be installed in all areas, but they must be covered with a metal grid or grounded metal cover connected to the equipotential bonding specified in 701.413.1.6. a) Bathtubs
b) Basins with fixed partitions
Dimensions of the partitions in Figure 701A (plan view)
The corresponding chapter in the general requirements is under consideration. Adoption instructions:
1] In IEC 60364-7-701r1984, the number of this clause is 413.5.1.2_ In IEC G0364-7-7D1:1984, the number of this clause is 411.1,31 In IEC 60364-7-701:1984, the number of this clause is 411.13 Zone
) Shower tray
e) Shower without tray
g) Bathtub
Shower head
Zone 1
GB 16895. 13-2002
d) Shower tray with fixed partition
f) Shower without tray with fixed partition
Shower head
Figure 701A (end)
Figure 701B Dimensions of partition (section)
h) Bathtub
1) Shower without tray with fixed partition
GB 16B95. 13—2002
Fixed partition
Figure 701B (end)
Prefabricated shower room
701.53b) Application
Figure 701° Prefabricated shower room
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