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GB 31459-2015: [GB/T 31459-2015] Safety requirements for temperature control systems for floor heating for household and similar use
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Basic data | Standard ID | GB 31459-2015 (GB31459-2015) | | Description (Translated English) | [GB/T 31459-2015] Safety requirements for temperature control systems for floor heating for household and similar use | | Sector / Industry | National Standard | | Classification of Chinese Standard | K32 | | Classification of International Standard | 97.120 | | Word Count Estimation | 20,275 | | Date of Issue | 2015-05-15 | | Date of Implementation | 2016-06-01 | | Quoted Standard | GB/T 2423.1; GB/T 2423.2; GB/T 2423.3; GB/T 2423.22; GB 4208; GB 4343.1-2009; GB 4343.2-2009; GB 14536.1-2008; GB 14536.10-2008; IEC 60536 | | Regulation (derived from) | National Standard Announcement 2015 No. 15 | | 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 Standard specifies the safety requirements for machinery, electronic household and similar equipment to warm temperature control system. This Standard contains the control room interior warm temperature control system requirements, but also contains the pipeline pumps, water heaters, central air-conditioning systems and building automation systems, such as supporting the use of floor heating thermostat system, further comprises a remote control and intelligent control functional requirements to warm temperature control system. This Standard does not contain requirements for warm radiating portion. This Standard applies to the rated voltage not exceeding 690 V, rated current not exceeding 63 A, to be converted into heat (often called electric heating) or by hot fluid medium diffusion of heat (often called the water to warm) in the living room by the electric power, requiring single or dual temperature control to warm temperature control system. | GB 31459-2015: [GB/T 31459-2015] Safety requirements for temperature control systems for floor heating for household and similar use
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Safety requirements for temperature control systems for floor heating for household and similar use
ICS 97.120
K32
National Standards of People's Republic of China
Household and similar floor heating temperature
Safety requirements for control systems
Published 2015-05-15
2016-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China issued
Table of Contents
Preface Ⅰ
Introduction Ⅱ
1 Scope 1
2 Normative References 1
Terms and definitions 1 3
4 Test General Description 2
Rating 3 5
6 Category 4
7 Data 4
8 Functional safety requirements 5
9 6 protection against electric shock
10 ground protection measures 6
Terminal 11 and the end head 7
Structure of claim 7 12
13 moisture and dust 7
14 electrical strength and insulation resistance 8
15 8 fever
16 manufacturing variations 8
Environmental stress 9 17
18 Endurance 10
10 19 Mechanical strength
20 creepage distance and clearance distance through solid insulation 11
21 heat, fire resistance and tracking 11
22 corrosion 11
23 Electromagnetic compatibility (EMC) requirements 11
24 11 Components
The electronic controller 25 requires 11
Appendix A wiring (informative) with floor heating temperature control system schematic 12
Foreword
All technical contents of this standard is mandatory.
This standard was drafted in accordance with rules GB/T 1.1-2009 given.
The standard proposed by China Electrical Equipment Industrial Association.
This standard by the National Standardization Technical Committee home automation controller (SAC/TC212).
Drafted by. China Electric Apparatus Research Institute Co., Man Ruide Automation System (Yueqing) Co., Ltd., Zhejiang shield the artificial
Environment Co., Ltd., Ningbo Ou Electrical Technology Co., Ltd., Ningbo Branch of the IC Design Center Co., Ltd., Daikin (China)
Investment Co., Ltd. Shanghai Branch, Ningbo City, North Lun Haibo fine Machinery Manufacturing Co., Ltd. Shenzhen Extension state, Zhuhai Gree
Electric Co., Ltd., Jiangsu Changheng automatic controller Group Co., Ltd., Hisense Kelon Electrical Holdings Company Limited, Guangdong Entry-Exit Inspection
Quarantine Bureau Inspection and Quarantine Technology Center, CVC Technology Limited.
The main drafters. Lin Yongming, Chen Linan, Wang Xiangrong, thanks Ke Long, Huang Chao, Zhang Jianqiang, He Dingfang, Lai Chi, Fan Lingyun, Du Li, Luo
Hui, Feng Da, Qian Feng.
Introduction
Household and similar floor heating temperature control system is widely used in hot water or heat medium heating cables, electric film is applied
Temperature of the radiation heating elements of the thermal engineering system for controlling an electric valve, electric valve, electric valve and heating equipment and other equipment to control and display
System, is involved in product safety, energy conservation and environmental protection of critical infrastructure pieces for pressure, cold and corrosion and other areas have higher requirements.
This standard provides the corresponding safety and performance evaluation based on the temperature control system for the warm household and similar equipment, to the industry
Designers and provides a reference design platform, the safety design of the end product is more standardized.
Household and similar floor heating temperature
Safety requirements for control systems
1 Scope
This standard specifies the safety requirements of mechanical, electronic and similar household apparatus to warm to a temperature control system. This standard contains
Requirements for a temperature control system controls the warm interior of the room, and also includes pipeline pumps, water heaters, central air conditioning system and building automation systems, etc.
Matching requirements warm temperature control system used, further comprising temperature control system is required to warm with remote control and intelligent control functions. this
Standard does not include requirements for warm radiating portion.
This standard applies to not more than the rated voltage 690V, rated current not exceeding 63A, for converting electrical energy into heat in the room (often called power
Warm) or by thermal diffusion of heat a fluid medium (often referred to warm water), the temperature control system requires warm single or dual temperature control.
2 Normative references
The following documents for the application of this document is essential. For dated references, only applies to the version dated paper
Pieces. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 2423.1 electric and electronic products Environmental testing - Part 2. Test methods Test A. Cold
GB/T 2423.2 electric and electronic products Environmental testing - Part 2. Test Test Method B. High Temperature
GB/T 2423.3 electric and electronic products environmental testing - Part 2. Test Method Test Cab. Damp heat,
GB/T 2423.22 Environmental testing for electric and electronic products - Part 2. Test Test Method N. temperature
GB 4208 shell protection (IP code)
GB 4343.1-2009 electromagnetic appliances, electric tools and similar apparatus compatible Part 1. emission
GB 4343.2-2009 household appliances, electric tools and similar apparatus electromagnetic compatibility requirements - Part 2. Immunity
GB 14536.1-2008 household and similar use automatic controller Part 1. General Requirements
GB 14536.10-2008 Particular requirements for household and similar use automatic control temperature sensing controls
Protection against electric shock IEC 60536 electrical and electronic sorting equipment (Classificationofelectricalandelectronicequipment
withregardtoprotectionagainstelectricshock)
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Warm floorheating
Electricity or hot water as heat medium or heat source, the heating member tube or the like electric heating device embedded in the ground in the building, a heat-conducting
Floor heating mode, the heat exchange surface of the radiation and convection heat of the indoor heating mode.
3.2
Water to warm waterfloorheating
Also known as the low temperature hot water floor radiant heating. Hot water temperature is not higher than 60 ℃ of heating medium in the heating pipe of the floor heating circulating
Heating mode.
3.3
Electricity to warm electricalfloorheating
Use energy directly into electrical energy, electrical heating member is laid under the floor, the entire ground-based heat radiation and warm to the room heating mode.
Note. electric floor heating, the heat generating element, the temperature control system consists of a core part of the power supply.
3.4
The temperature control system temperaturecontrolsystem
Medium temperature or a portion of the wall temperature or environmental control system to ensure a space (floor heating) in a predetermined range, to meet UN
Room or other space regions required thermal regulation device sets.
Note. including thermostat, temperature limiter, the temperature sensor. The temperature control system wiring schematic Appendix A.
3.5
Thermostat thermostat
A cyclical temperature sensitive controller that the temperature was maintained between two particular values under normal operating conditions. And where can
With means to be set by the user.
3.6
Room thermostat roomthermostat
Independently mounted or built-in type for controlling the temperature of the living space thermostat.
3.7
Temperature limiter temperaturelimiter
A temperature-sensitive control that causes the temperature under normal operating conditions is kept below a certain value. And wherein there may be from the use of
Performed by means of setting.
3.8
Set temperature settingtemperature
Temperature control system for obtaining a temperature over the set temperature value.
3.9
Frost protection temperature frostprotectiontemperature
Frost protection thermostat having a temperature set value control mode in antifreeze.
3.10
Deviation control switch controlswitchbias
When the temperature control system is set to a certain temperature, maximum temperature or minimum temperature and when the set floor heating system output excitation Temperature
The absolute value of the difference value.
3.11
Periods feature timesettingfunction
Automatically operating thermostat set temperature corresponding to the time period set in advance.
3.12
Electric heating equipment heatingconductor
In the heating for the purpose of heat after the power cable can.
3.13
Key lock function keylockedfunction
To prevent unauthorized persons or children, by mistake, the wrong press is free to modify, you can lock the keys by the operation of the thermostat.
General Description 4 Test
4.1 Test conditions
4.1.1 Test is carried out according to the standard type tests.
4.1.2 Unless otherwise specified, the provisions shall be the manufacturer's specimen mounted delivery status test, but in the most unfavorable state tests have
When significance, press worst state test.
4.1.3 If the test result of the influence by the room temperature, unless otherwise specified, should be maintained at room temperature for 20 ℃ ± 5 ℃, if the test results suspect
, The temperature should be maintained at 23 ℃ ± 2 ℃.
4.1.4 unless otherwise indicated in particular in clauses, the starting element should be positioned in the most unfavorable position, intermediate position or position set by the user.
4.1.5 Unless otherwise specified, this standard should in general be reg test sequence.
4.1.6 In all experiments, measuring instruments or measuring devices should not significantly affect the measured values.
4.2 Sample Requirements
Chapter 5 - Chapter 7, Chapter 9 - Chapter 12 - Chapter 19 second test of Clause 23 with a sample; Chapter 8, Chapter 13 to
Chapter 17, Chapter 24 of the test with a group of three specimens; chapter 18 of the test with a group of three trials.
Some samples may need to increase the destructive test.
4.3 Test Description
4.3.1 not a predetermined nominal frequency AC power controller, whichever is most unfavorable test frequency of 50Hz or 60Hz. A rated frequency
It ranges, but not 50Hz ~ 60Hz controller, the subject with a predetermined frequency or range of frequencies in the most unfavorable test.
4.3.2 Unless otherwise specified, the one or more predetermined voltage range of the controller, the most unfavorable voltage into the specified range should be used in
Line test, and this voltage is multiplied by the corresponding coefficients indicated clauses.
4.3.3 more than a rated voltage or rated current controller for a predetermined or indicated, the test Chapter 15, Chapter 18 in several samples should
Group on each test composition by the rated voltage and rated current.
Note. the test selection mechanism, can reduce the number of tests, but includes various ratings.
4.3.4 for only a predetermined voltage range of the controller, a set of samples tested in each of the voltage limit range, if the limit
The difference does not exceed 10% of the average value of the voltage range, then use a set of samples to be tested upper limit voltage.
4.3.5 intended by the controller in special operating power, special power application test.
4.3.6 controller should be consistent, but the setting of the manufacturer, or to meet the requirements of this standard, used in the manufacturing stage element or portion
Difference member, resulting in different values of operation, operating time or operating procedures, this time should generally be treated as a batch. Under normal circumstances, the
The controller is set under the most severe conditions is sufficient. But if it is clearly shown that needs to be set to other values in order to meet the entire range
Wai, then the test may require additional means for setting the sample at other values.
4.3.7 In these cases should be noted that the value of any operation, the operation time of manufacturing variation or change in operating procedures and drift; for sensitive
A controller should also be noted applicable ranges corresponding to different portions of the starting amount of the minimum and maximum acceptable rate of rise and fall.
5 Ratings
5.1 The maximum rated voltage
The maximum rated voltage of AC to 690V.
5.2 The maximum rated current
The maximum rated current of 63A.
Operating current to warm the temperature controller not exceed the rated current, when the operating current control loop is greater than the nominal operating temperature
Current, other control devices can be employed and the contact temperature or the like incorporated in the form of control functions.
5.3 Eligibility
Meets the requirements of 5.1, 5.2, check the information required in accordance with Chapter 7.
Category 6
6.1 Press the control object classification
6.1.1 electric floor heating thermostat
Temperature control target is heated cables, electric film electric heating device.
6.1.2 warm water temperature 1)
1) This class includes a frost protection thermostat.
Thermostat control target to control the water valve switch.
6.2 classified according to the temperature sensing element
--- mechanical thermostat;
--- electronic thermostat.
6.3 Classification according to the control mode
6.3.1 room thermostat
It is capable of sensing the temperature of the room air, an automatic control device for adjusting the desired temperature in the room.
6.3.2 the thermostat thermostat
Is capable of sensing the temperature of the floor, be an automatic control device controls the adjustment.
6.3.3 dual temperature thermostat
Simultaneously sensing the room air temperature and the floor temperature, control means to be an automatic adjustment control.
6.4 Classification according to protection against electric shock
--- Class Ⅰ;
--- Ⅱ class;
--- Ⅲ class.
NOTE. Ⅰ type, Ⅱ class that defines the device type Ⅲ see IEC 60536.
7 Data
7.1 Basic requirements
This information is part of the basic requirements refer to Chapter 7 GB of 14536.1-2008.
7.2 Technical Documentation
The following information should be provided in the technical documentation.
--- Technical Specifications;
--- user instructions;
---installation instruction;
--- operating instructions.
Additional requirements 7.3 marks
At least the following markings on the sensor and the controller.
--- manufacturing trademarks;
--- model specification.
The following should be attached to the controller Specifications.
--- rated voltage, power and power consumption;
--- each terminal wiring diagram;
--- serial number and factory years.
Terminal wiring diagram should be permanently marked on the controller.
The required control flag shall be marked on the body of the controller, it can also be marked on a non-detachable member. Shall be required to sign and legible
Durable. By observing and GB 14536.1-2008 Appendix A test to check the.
8 Functional safety requirements
8.1 Basic requirements
Electric floor heating temperature control system should have temperature control function and a limiting temperature protection, in accordance with the manufacturer requires the installation regulations, which can be achieved
A predetermined function.
8.2 The maximum set temperature
Electric floor heating with a maximum temperature and a set temperature limit temperature, respectively, and should not exceed 50 ℃ for 60 ℃.
8.3 frost protection
Warm water with a frost protection thermostat should have the function to prevent the warm water temperature controller in the standby state results in freezing temperature is too low. Anti
Freeze protection temperature should be 5 ℃. Frost protection control switch temperature deviation ≤2K.
The room temperature sensor is extended to about 1m, the sensor probe in a convection air oven or a thermostatic bath, temperature control
Is placed outside the box, power, temperature control operation is allowed under the frost protection state; the fine wire thermocouple 0.25mm fixed sensor
When adjacent oven or bath temperature is lowered to a temperature below the frost protection, labeling observed at this time the output temperature, the heating temperature should output
Signal, oven or bath temperature rises above the frost protection temperature, the heating temperature should stop signal is output.
8.4 power data retention function
Data storage function with temperature control system, operating in accordance with the operating method of the manufacturer and the charging time (if required),
72h after power failure data should not be lost. Each data read by the temperature should be consistent with the previous power-off.
5min continuous operation in the normal operation state temperature controller, the temperature controller set temperature recorded, data such as the operating mode, if having
There thermostat time programming function, further comprising a period of time, a period corresponding to the set temperature. Then cut off the power supply, through the re-72h
Electrical inspection records and test cases immediately.
8.5 Timing Function
8.5.1 Timing Accuracy
Temperature controller with timer switch function, the timing resolution set ≤30min timing time error ≤ ± 0.5%.
In the normal operation state of the temperature controller, the temperature setting operation start timings t0 hours, and temperature control in the standby state. Seconds
Table start timing simultaneously set the time, temperature controller regularly check time display. When recording actual response time interval t1, then the timer
The relative error between Δt by the formula (1).
Δt =
t1-t0
t0
× 100% (1)
Where.
Relative to the timing error [Delta] T ---;
--- thermostat T1 stopwatch actual response time of reading;
--- temperature T0 timing time.
8.5.2 programming period
Temperature programming function having a period of 24h should have at least four per period may be set, the period control accuracy ≤1min.
Following the procedure set period as specified by the manufacturer using test method 8.5.1.
8.6 Key lock function
Temperature control with key lock function, according to the method specified by the manufacturer operation, the lock button, each operation button data to be thermostat
You can not be modified, in order to restore data modification only after unlocking.
According to the method specified by the manufacturer operation, the temperature controller locking sequentially operating each of the keys, to observe whether the temperature controller of each data is changed; Control
After warming unlock sequentially operating each of the keys, to observe whether there is a change of data of each thermostat.
8.7 Exception Handling sensor
8.7.1 When the thermostat when the temperature sensor can not normally short or open, the heating temperature should stop outputting signals, having a display function
Temperature should alert symbol displayed on the display screen. When the sensor is normal, temperature controller should resume normal operation.
8.7.2 When the limit temperature when the temperature sensor can not normally short or open, the output of the temperature limited heating should be stopped, when the sensor is normal,
Temperature limiter should resume normal operation.
Heating signal indicative 8.8
When the heating temperature output signal, having a heating should indication; thermostat having a display function may be achieved by heating the displayed symbols,
Application temperature indicator label that does not have a display function is achieved. Assessment during normal operation by the thermostat.
9 Protection against electric shock
Protection against electric shock 9.1 temperature controller
Protection against electric shock shall meet the required temperature in 14536.1-2008 Chapter 8 Ⅱ Ⅲ class or type of protection against electric shock controller GB
Provisions.
Protection against electric shock temperature limit of 9.2
Protection against electric shock protection against electric shock in claim temperature limit should meet in Chapter 8 GB 14536.1-2008 Ⅰ Ⅱ class or classes controller
Provisions.
10 ground protection measures
10.1 Ⅱ classes and class Ⅲ thermostats, temperature limiter, there should be no earthing.
Checked by observation.
NOTE. When the ground member interconnecting device or system is necessary, and passed through a time class structure or class Ⅲ Ⅱ structure, if the ground member by the double
Additional separate double insulation or insulated from live parts, these interconnections, comprising a terminal end or within the class to allow Ⅱ Ⅲ structure or structural class.
10.2 Ⅰ type temperature limiter shall comply with the requirements of GB 14536.1-2008 9.1.
11 and the terminal end
11.1 Basic requirements
Warm equipment and terminal ends of the temperature control system should meet the basic requirements of Chapter 10 GB 14536.1-2008 of.
11.2 Terminals marked
Terminals identity thermostats and temperature limiter should be clear, meaning clear, to prevent wiring errors.
Checked by observation.
12 structural requirements
12.1 material requirements should be met in GB 14536.1-2008 11.1.
12.2 independently mounted thermostat for floor heating system should meet the structure easy to install, easy to install. To ensure the safe operation of the electric floor heating for a long time, and control
Thermostat with temperature limiter should be supporting the installation. Warm water temperature controller with the appropriate choice of frost protection.
12.3 thermostat controller sets the height from the ground should be 1.4m, or a light switch in the same horizontal line. Temperature should be installed in the vicinity of
No radiator, no obstruction around, from wind blowing straight from direct sunlight, air drying and the body around the pyrogen, the indoor temperature can accurately reflect the
Position, not provided on the outer wall.
12.4 UN temperature limiter mounting height 0.3m appropriate ground, two wire port temperature limiter is connected in series with the temperature control device. limit
After the installation is complete good use of the thermostat cover 86 mounted whiteboard.
12.5 Temperature sensor should not be covered with the cover profile furniture or the like, should be disposed at a position personnel often stay. And temperature probe should be laid in two
Parallel intermediate heating member, the heating member or pitch more than 3cm. The temperature sensor conduit rigid sleeve should be used φ20, embedded casing
Effectively block end should not be cross-laid with the heating member, preferably 0.4m away from the wall extending into the floor, and the lumen cross section of the elbow should ensure Notations
Small, to ensure that the installation or replacement of the temperature sensor of the sensor can smoothly be maintained.
12.6 For the bathroom, a sauna, a steam room (high humidity or water might splash wall) should be temperature or temperature limiter is mounted on the outside wall, Cai
Temperature sensor leads to longer, the surface temperature control.
12.7 is connected with a load cable terminals should be reliable.
12.8 Temperature set limit temperature, preferably above the ground 10K desired temperature.
12.9 electric power supply of the heating system should be installed independently of the electrical circuit includes a safety shut-off, leakage protection.
13 moisture and dust
The temperature control system should prevent water, dust intrusion appropriate degree of protection, and should meet the following requirements.
--- Under normal place of use, degree of protection should not be less than IP20;
--- similar properties kitchen, bathroom, etc., should not be less protection class IP24, waterproof cover can be used to achieve this level was substandard
Claim;
--- floor temperature sensor protection level not less than IP55.
Degree of protection should be tested by the method prescribed in GB 4208.
14 electrical strength and insulation resistance
Required electric strength and insulation resistance should meet the provisions of chapter 13 GB 14536.1-2008, while subject to the following special
Claim.
--- insulation resistance temperature control system should at least meet the requirements of double insulation;
--- insulation resistance temperature sensor should satisfy at least one additional insulation requirements;
--- temperature control system, should meet at least double the strength of the electrical insulation requirements.
15 fever
Warm temperature control system of the heating apparatus of GB 14536.1-2008 shall meet the requirements in Chapter 14.
16 man...
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