GB 14536.7-2010

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GB 14536.7-2010	English	145	Add to Cart	0--9 seconds. Auto-delivery	[GB/T 14536.7-2010] Automatic electrical control for household and similar use -- Particular requirements for automatic electrical pressure sensing controls including mechanical requirements	GB 14536.7-2010	Valid	GB 14536.7-2010

GB 14536.7-2010
Automatic electrical control for household and similar use.Particular requirements for automatic electrical pressure sensing controls including mechanical requirements
ICS 97.120
K32
National Standards of People's Republic of China
Replacing GB 14536.7-1996
Household and similar electrical automatic controller
Automatic electrical controls for pressure sensitive special requirements
Including mechanical requirements
(IEC 60730-2-6.2007, IDT)
Issued on.2010-11-10 2011-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope and normative references 1
2 Definitions 1
3 2 General requirements
4 General notes 3
Rating 3 5
6 Category 3
Profile 3 7
8 4 Protection against electric shock
9 ground protection measures 4
10 Terminals and terminations 4
11 structural requirements 4
Moisture and dust 12 5
13 Electric strength and insulation resistance 5
14 Fever 5
15 Manufacturing deviation and drift 6
16 6 Environmental Stress
6 17 Durability
18 mechanical strength 7
19 Threaded parts and connections 8
20 creepage distances, clearances and distances through solid insulation through 8
21 heat, fire and resistance to tracking 8
22 8 corrosion resistance
23 Electromagnetic compatibility (EMC) emission requirements --- 8
24 assembly 8
25 normal operation 8
26 Electromagnetic compatibility (EMC) requirements --- immunity 8
27 non-normal operation 8
28 Guidelines for the use of electronic disconnect 9
Requirements Annex H (normative) electronic controller 11
Number 14 Annex AA (normative) cycle
Appendix BB (informative) bellows, Bourdon tubes and similar components with stainless steel 15
Foreword
All technical content in this section is mandatory.
GB 14536 "Household and similar electrical automatic controller" is divided into two parts.
--- Part 1. General requirements;
--- Part 2. Particular requirements.
Special requirements and consists of the following components.
--- GB 14536.3 - Particular requirements for thermal motor protectors (IEC 60730-2-2, IDT);
--- Particular requirements GB 14536.4 tubular fluorescent lamp ballasts for thermal protectors (IEC 60730-2-3, IDT);
--- GB 14536.5 sealed and semi-hermetic motor - compressor motor thermal protection Particular requirements (IEC 60730-2-4,
IDT);
--- Particular requirements GB 14536.6 automatic electrical burner control systems (IEC 60730-2-5, IDT);
--- GB 14536.7 automatic electrical pressure sensing controller special requirements, including mechanical requirements (IEC 60730-2-6, IDT);
--- GB 14536.8 Particular requirements for timers and time switches (IEC 60730-2-7, IDT);
--- GB 14536.9 Particular requirements for electrically operated water valves (including mechanical requirements) (IEC 60730-2-8, IDT);
--- GB 14536.10 - Particular requirements for temperature sensing controls (IEC 60730-2-9, IDT);
--- GB 14536.11 Particular requirements for motor starting relays (IEC 60730-2-10, IDT) used;
--- GB 14536.12 Particular requirements for energy regulators (IEC 60730-2-11, IDT);
--- GB 14536.13 Particular requirements for electrically operated door locks (IEC 60730-2-12, IDT);
--- GB 14536.15 Particular requirements for humidity sensing controls (IEC 60730-2-13, IDT);
--- GB 14536.16 Particular requirements for electric actuators (idtIEC 60730-2-14);
--- GB 14536.17 special requirements of the float or electrode-sensitive automatic electrical water level sensing controller used in the boiler appliance
(IEC 60730-2-15, IDT);
--- GB 14536.18 - Particular requirements for household and similar use of the float type level controllers (IEC 60730-2-16, IDT);
--- GB 14536.19 Particular requirements for electrically operated gas valves, including mechanical requirements (IEC 60730-2-17, IDT);
--- GB 14536.20 Particular requirements for water and air flow sensing controls, including mechanical requirements (IEC 60730-2-18, IDT);
--- GB 14536.21 Particular requirements for electrically operated oil valves, including mechanical requirements (IEC 60730-2-19, IDT);
This section identical with IEC 60730-2-6.2007 "Household and similar electrical automatic controller automatic electrical pressure sensing controller
Special requirements, including mechanical requirements "(second edition).
This part of the structure with the IEC 60730-2-6.2007 are identical. In this section, there is a corresponding national standard, incorporated by reference country
Standard; no national standards, IEC standards are incorporated by reference outlined.
For ease of use, this section made the following editorial changes.
a) instead of as a decimal by decimal comma ",". ",";
b) increase the national standard foreword;
c) "This standard" be replaced by "this section";
d) with "GB 14536.1" instead of "the first part."
This part of GB 14536.1-2008 "Household and similar electrical controls - Part 1. General requirements" in conjunction.
This Part replaces GB 14536.7-1996 "household and similar use automatic controller automatic electrical pressure sensing controller for a special
Demand (including mechanical requirements). "
Compared with GB 14536.7-1996 part of the main changes are as follows.
a) the name of a number of clauses based on changes in GB 14536.1 made the appropriate changes;
b) limit the scope of Chapter 1, 1.2, 1.3 instead of deleting content for GB 14536.1 corresponding requirements;
c) Chapter 2 2.3 is defined by deleting a number of bars, some of which has been adjusted to the GB 14536.1;
d) Chapter 7 provides information to adjust the part;
e) Chapter 10 and the terminal ends of the 10.1.1.1,10.1.101,10.1.102,10.2 instead of deleting and adding provisions content;
f) by deleting Chapter 11 of the terms and 11.6 11.4.102 increase instead of content, while others have also been adjusted in this chapter;
g) Chapter 14, Article 14.4.3.1 GB 14536.1 fever increased this provision does not apply;
h) Chapter 24 components instead of deleting the contents of 24.2;
i) increase in Appendix H.
This part of the appendix H, Annex AA is normative appendix, Appendix BB informative appendices.
This part is proposed by the China Electrical Equipment Industrial Association.
This part of the National Standardization Technical Committee household automatic control (SAC/TC212) centralized.
This section is drafted. Guangzhou Electric Apparatus Research Institute, Changzhou Xi Mate Electric Co., Ltd., the benefits of mechanical and electrical (Huizhou) Co., Ltd., Zhejiang
Three flowers Co., Ltd., Foshan Tongbao Co., Ltd., Jiangsu Changheng Group automatic controller Ltd., Guangzhou CVC detection technology research
Hospital study, simultaneous Pingdingshan Electrical Co., Ltd., Shunde District of Foshan City Electric Industrial Co., Ltd. Miharu, known Ningbo Ou Electrical Technology Co.,
Wuhu City, Kowloon Controls Co., Ltd. Foshan Hua heron automatic controller, Hisense Kelon Electrical Holdings Company Limited, the national electricity
Is Research Institute, Foshan Municipal Quality Supervision and Testing Centre.
Drafters of this section. Core hole fast, Du Li, Chen Jianmin, wheat harvest, Qian Feng, Chen Yuzhong, Yan Yunlu, thanks to Long Ke, Zhu Zhou Yang, Shao Zhicheng,
Zhao Li Yan, Huo Jinrong, Luo Hui, Gu Yulin, then Liang Feng.
This part of the standard replaces the previous editions are.
--- GB 14536.7-1996.
Household and similar electrical automatic controller
Automatic electrical controls for pressure sensitive special requirements
Including mechanical requirements
1 Scope and normative references
GB 14536.1 of the chapter is applicable except as follows.
1.1 Replacement.
This section applies to the table minimum rated pressure -60kPa, table maximum rated pressure of 4.2MPa pressure sensitive electrical automatic control
Is that they are in the home and similar devices, equipment or attached to the device for use, including heating, air conditioning and similar applications, this
These devices may be used electricity, gas, oil, solid fuel, solar energy, or a combination thereof.
1.1.1 Replacement.
This section applies to a pressure sensitive electrical controls inherent security, but also for the protection of related equipment and operating values, operating procedures,
Also applies to the household and similar equipment, pressure equipment or attached to the electrical equipment used in susceptibility testing of automatic controller.
Note. "device" in this section use the term with "utensils and equipment."
This section does not apply to special pressure-sensitive controllers for industrial purposes.
This section also applies to the control system as part of a single pressure sensitive controller or controller with multifunction machine with a non-electric output
Mechanically combined pressure sensing controls.
Not as a general household, but used in public places, such as to shops, light industry and farm equipment in use by the non-professionals, the use of
The pressure-sensitive electrical controls are also included within the scope of this.
This section also applies to pressure within the range of GB 4706.1 appliances used in sensitive controller.
See also Appendix J.
1.1.2 Replacement.
This section applies to electrical or mechanical operation, in response to pressure or vacuum control, or electrical controls.
1.1.3 Not applicable.
1.1.4 Replacement.
This section also applies to and/or mechanical electrical controller combined with a pressure-sensitive manual control.
Note. The components of artificial requirements does not constitute automatic switch controller included in the GB 15092.1.
increase.
1.1.101 This section contains a pressure-sensitive controllers and electrical performance requirements affect the mechanical performance requirements of its intended operation.
NOTE. 18.101 The provisions involving gas and/or oil control controller, currently under consideration, waiting for ISO /TC109 and ISO /TC161 review or amendment.
1.1.102 Usually these controllers are pressure-sensitive whole, or in a device, or a predetermined or integrated into the device within the apparatus. when
These controllers are installed separately, their requirements included in this section. With wire controller is not included in this section.
1.4 Replacement.
This section also applies to the electronic device equipped with a pressure sensitive controller. The kinds of pressure-sensitive controller requirements given in Annex H.
This section applies equipped with NTC (negative temperature coefficient) or PTC (positive temperature coefficient) thermistor pressure-sensitive controller. they
Additional requirements included in Appendix J.
2 Definitions
GB 14536.1 of the chapter is applicable except as follows.
2.2 is defined by use classification controller
2.2.19 increase Note.
Note. See 2.2.102.
2.2.20 increase Note.
Note. See 2.2.103.
increase.
2.2.101
Voltage limiter pressurelimiter
A pressure-sensitive controller, in which the pressure under normal operating conditions is kept below or above a predetermined value, and which can be
There are set by the user of the device.
Note. The voltage limiter can be automatic or manual reset type. During normal business cycle of electrical equipment can not be reverse operation.
2.2.102
Pressure operation controller pressureoperatingcontrol
A pressure-sensitive controller, the device is expected to operate normally under high pressure, low pressure, or they set, or high and low limits.
2.2.103
Pressure cutter pressurecut-out
A pressure-sensitive controller, which is scheduled under abnormal operating conditions of the equipment will be maintained at a pressure above or below a certain value, and
Which does not contain set by the user of the device.
Note 1. The pressure cut-off may have automatic reset or manual reset type type;
Note 2. In general, pressure cut-off will provide Type 2 action;
Note 3. The pressure cut-off may have an adjustable stop button, the controller manufacturer, equipment manufacturer or installer settings.
2.3 function controller and related definitions
increase.
2.3.101
Pressure medium pressuremedium
Medium for transferring pressure to the sensitive element.
Note. In this section the pressure medium used is a gas or a liquid.
2.3.102
Pressure difference differentialpressure
The difference between the pressure of the system between two points, or two systems, or systems with a reference pressure (eg atmospheric pressure) between.
NOTE. For example, static pressure between the upstream and downstream sides of the orifice tube difference.
2.8 components associated with the controller definition
increase.
2.8.101
Ventilation restrictions ventlimitingmeans
That will limit the air discharged from the air chamber diaphragm chamber or sucked into the measure.
2.8.102
Vent vent
When the controller is working, or discharge air sucked into the process, from the diaphragm to the side communicating with the atmosphere (air chamber) to the opening of the atmosphere.
3 General requirements
This is applicable in GB 14536.1.
General Description 4 Test
GB 14536.1 of the chapter is applicable except as follows.
4.1 Test conditions
4.1.7 Replacement.
Specified in 7.2, the pressure rate of change (such as α1, β1, α2, β2) used in Chapter 17 V, shall be specified by the manufacturer experimental error.
4.3.1 Addition.
Appendix AA 4.3.1.101 pressure values apply to Chapter 17 standalone installation sensitive test controller. Integral control and load type
Made the value specified in the relevant equipment standard.
5 RATINGS
This is applicable in GB 14536.1.
Category 6
GB 14536.1 of the chapter is applicable except as follows.
6.3.9 Addition.
6.3.9.101 --- pressure sensitive.
6.4.3 Addition.
6.4.3.101 for sensitive operation, there should not be manipulated value since the sensor itself or cutting device part associated therewith leak caused
Increase (2.N type).
6.5.2 Review.
With the following note instead of paragraph 2.
Note. The preferred shell protection grade is. IP20, IP30, IP40, IP54 and IP65. These preferred values and take different values allowed.
6.8.3 Replacement.
Stand-alone installation controller or with a controller using a non-electric energy systems ready or assembled together.
7 Information
GB 14536.1 of the chapter is applicable except as follows.
Table 7.2
Information chapter, strip method
Review. The following is replaced by the following corresponding items.
6 controller object
2.2.101,2.2.102,
2.2.103,4.3.5,6.3
26 the number of cycles per start manual operation (M) 6.10, Appendix AA X
Automatic number of cycles for each automatic action 27 (A) 6.11, Appendix AA X
34 Not applicable
44 Not applicable
48 operating pressure (or pressure) 2.3.11,15,18 D
Add the following items.
101 pressure medium 2.3.101 X
Table 7.2 (Continued)
Information chapter, strip method
102 operating deviation 2.3.26 D
Maximum working pressure of 103 2.3.29 D
In Table 7.2 Note d increase. the pressure-sensitive controller, or limit the amount of starting by the appliance manufacturer in accordance with applicable standards for household appliances second part
Predetermined, or by the pressure sensitive controller manufacturer declaration (see 17.7 and 17.8).
8 Protection against electric shock
This is applicable in GB 14536.1.
9 ground protection measures
This is applicable in GB 14536.1.
10 Terminals and terminations
GB 14536.1 of the chapter is applicable except as follows.
Terminals and terminations 10.1 external copper conductors
10.1.4 Addition.
NOTE. In Canada and the United States, operating voltage greater than 50V controller shall be equipped with the appropriate terminals or leads to connect the fixed wiring, the current level should
not lower than.
--- 1.25 times the stationary space heating appliances of the load current;
--- 1.25 times the single-phase motor rated full load current;
--- 1.25 times and 1.25 times the full load current of the motor fixed spatial electric load device composed of a synthetic load;
--- Maximum motor full load current plus 1.25 times the load of the other full load current;
--- 1.0 times all the other loads.
11 structural requirements
GB 14536.1 of the chapter is applicable except as follows.
11.4 Action
increase.
11.4.101 2.N type action
2.N type action should be designed to be sensitive in the case of any member or members between the sensitive element and breaking device leaks in
The sum of the operating pressure and drift exceeds a predetermined nominal completed before disconnecting or cutting.
By the following tests to check eligibility.
Operating pressure 2.N controller shall be GB 14536.1 measurement conditions in the Chapter 15 provisions. If the controller has a setting means
Is set, it should be set to the highest value.
After the measurement, manually processing a hole in the sensor, the measurement is repeated operating pressure.
Not allowed to have more than the stated value of the forward shift.
NOTE. This test may be theoretical physics instead of calculating the operating model.
You can request a separate sheath or sleeve to protect sensitive components to meet Chapter 18.
Installation, maintenance and repair requirements of 11.11
increase.
11.11.101 parts in contact with the diaphragm should not have any sharp burrs, protrusions or might scratch, worn diaphragm like.
Compliance is checked by inspection before and after the Chapter 17 tests to check.
11.11.102 operating spring and should be installed to protect against abrasion, bending, curling or interfere with each other their movement.
Compliance is checked by inspection before and after the Chapter 17 tests to check.
11.11.103 If any part of the controller failure will cause hazardous liquid leakage, this member shall melting point (solid phase temperature) of not less than
510 ℃, and 204 ℃ tensile strength of not less than 68MPa material made of.
This means there should be no indentation, deformation, melting, oxidation or other tests in the next period of not leak fluid.
Compliance is checked by inspection and test of chapter 17 check.
11.11.104 If damaged parts may cause flammable fluid leakage, or cause control failure, these components comprising a housing, a capillary wave
Eroded bellows or diaphragm, etc., should be able to withstand the normal work come into contact with atmospheric corrosion and in contact with the liquid.
Note. less than 81% of copper and zinc greater than 9% of the brass is considered to be intolerant of fuel corrosion.
11.11.105 elastic membrane, bellows or the like constituting the combustible gas or liquid seal structure of the controller, or corrugations in the diaphragm should
When the tube is surrounded by an enclosure enclosing, in order to avoid the event of bellows or bellows damage, leakage of gas or liquid, or gas or liquid can be used row
An outdoor vent pipe or conduit.
11.11.106 designed for monitoring the viscosity of 1.00mm2/s to 600mm2/s fuel pressure controller, if its three samples by
After that after the durability test of 100,000 cycles without evidence of leakage, and the durability test, the specimen is subjected to 4 times the maximum working pressure of the hydrostatic
Test, the controller meets one of the following conditions, it is not required to meet the requirements of 18.101 and 18.102.
a) If there is a leak was discharged from the damaged element within the controller housing, and these leakage in the connecting hole into the conduit before it
Discharged to the outside of the controller, the bellows, flexible metal tube, diaphragm or the like, made of stainless steel or other corrosion resistance equivalent to A
Grade material. or
b) If the damage from the spill only element discharging controller discharged outside of the housing, the bellows, flexible metal tubes, bellows, or the like
Thereof shall be stainless steel or corrosion resistance equivalent to B-grade material.
Suitable materials A and B grade in Appendix BB.
NOTE. 1mm2/s = 1Centistoke (centistokes).
increase.
Structural requirements 11.101 operating machinery
11.101.1 If the screws and nuts operating member is fixed to the moving parts, apply caulking or locked in other ways.
11.101.2 manual operation of the switch mechanism does not cause damage to the components.
11.101.3 operating member by an insulating sleeve or secure its position and approach to the controller wires separated to avoid influence wire operation
For moving parts.
It meets the requirements of 11.101.1 to 11.101.3, through observation to check.
11.102 above the maximum operating pressure or below the minimum operating pressure, pressure cut-off shall not be reset or manual reset possibility.
11.103 pressure manual reset device cut-off should be free.
It meets the requirements of 11.102 and 11.103, and checked by observation.
12 moisture and dust
GB 14536.1 of the chapter is applicable except as follows.
12.1.1 Addition.
This section is not used for sealing performance evaluation test controllers and devices.
13 Electric strength and insulation resistance
This is applicable in GB 14536.1.
Fever 14
GB 14536.1 of the chapter is applicable except as follows.
14.4.3.1 Not applicable.
15 Manufacturing deviation and drift
GB 14536.1 of the chapter is applicable except as follows.
15.1 Delete Note.
increase.
15.1.101 for the voltage limiter, pressure type 2 action cutter and Type 2 operation, the refrigerant liquid pressure for operation of the controller, manufacturing
Offset and drift values should be consistent with the provisions of the controller manufacturer.
15.4 Replacement.
7.2 operating pressure as specified above. The allowable deviation and drift does not apply to deliberately exceed the maximum operating pressure purposes.
15.5.5 Addition.
15.5.5.101 for the controller contained by the user to set the set point, the initial operating pressure should be the maximum, minimum and maximum of the most
OK on the approximately median set point small setpoint. For such a controller, the maximum deviation of 15.4 operating provisions applicable to the maximum provided
Point.
According maximum set point determines the scale error of 5% is applicable to the minimum set point and the median of the set point. This error may scale
Attached to the maximum operating bias.
The controller connected to the air or water pressure source, connection and intended use is consistent. Establishing a pressure value, so that the operating pressure
(Maximum, minimum, or intermediate value) within the range of 25%, then 10% of the pressure to increase or decrease per minute, but in any case change
Speed should not exceed 60Pa/s.
Finally, test conditions and test equipment after the initial test and the endurance test Chapter 17 should be the same.
16 Environmental Stress
This is applicable in GB 14536.1.
17 Durability
GB 14536.1 of the chapter is applicable except as follows.
17.1.2.1 Replacement.
It meets the requirements of 17.1.1 and 17.1.2, according to the test to check 17.16.
17.1.3.2 Addition.
Test Chapter 17 provisions to be carried out at the maximum operating pressure.
Test 17.16 special purpose controller
increase.
17.16.101 pressure operation controller
17.1 to 17.5 apply.
17.6 does not apply.
17.7 and 17.8 apply.
17.9 apply, but only for slow turning, slow off the automatic action.
17.10 to 17.13 apply, but only for artificial action (including to the starting measures set by the user) operated at a pressure control
Troller.
17.14 apply.
17.16.102 voltage limiter
17.1 to 17.5 apply.
17.6 does not apply.
17.7 and 17.8 apply, but the requirements get reset by the starter except for the case. 17.4 shall start its provisions for quick start, only
To allow institutions on as fast as possible, or 7.2 specified by the manufacturer.
17.9 apply, but only for slow action automatically turned off slow, conditions employed with the provisions of 17.7 and 17.8 bar manual reset
Pieces of the same.
17.10 to 17.13 apply, but only for artificial action (including to the starting measures set by the user) pressure limiting controller.
17.10 to 17.13 from 17.7 to 17.9 does not apply to the operation of the automatic test evaluation has been normal reset manual action. in case
Voltage limiter in other artificial action these automatic actions during the test as well as the assessment did not, then 17.10 to 17.13 pairs of these actions are artificial
Applicable.
17.14 apply.
17.16.103 pressure cutter
17.1 to 17.5 apply.
17.6 applies to 1.M or 2.M action, "X" values as small as possible.
17.7 and 17.8 apply, but requires a reset operation by the starter obtained except that 17.4 should start to feed a predetermined speed fast
OK, as long as the agency's approval. Or 7.2 specified by the manufacturer.
17.9 apply, but only for slow turning slow off automatism, conditions employed and 17.7 and 17.8 of the manual reset provisions of Article
Pieces of the same.
17.10 to 17.13 do not apply at the time of 17.7 to 17.9 normal automatic operation test assessment manual reset operation. If these self
During dynamic operation test, no further assessment of the pressure off other artificial action, then 17.10 to 17.13 apply.
17.14 apply.
18 Mechanical strength
GB 14536.1 of the chapter is applicable except as follows.
increase.
18.101 media leaks
NOTE. under consideration.
When the voltage limiter or pressure cut-off device is subjected to pressure in the monitored fluid components with air or nitrogen to the maximum working pressure controller
1.5 When tested, the rate of leakage of the medium of these components not exceed 200cm3/h.
In order to check compliance with the requirements, the controller can be connected to a predetermined pressure to provide clean air or nitrogen systems for the control
The operating system is not important opening is sealed. The introduction of air or nitrogen and kept under a predetermined test pressure, in the positive film element
Under ordinary use, it is subjected to pressure on both sides. The test pressure is slowly applied across the membrane. Do not suddenly pressed to avoid the film by
Excessive pressure.
Instruments to detect fluid leaks, the instrument should be able to accurately indicate the test flow rate of liquid 200cm3/h of. Maximum working pressure 35kPa
The controller, when immersed in a liquid containing parts 25mm deep in water up to 10s when, at the test pressure, in the absence of bubbles indicates that there is a leak
Happens, it is considered to meet the above requirements.
When a thin film, bellows, to meet the requirements of 11.11.105, under maximum working pressure controller is not allowed to exceed the following
The leak rate and leak-free threaded through vents or round pin pin pin connection to the outside housing.
a) for the controller with a specific gravity of less than 1.0 for use with gas, the gas leakage rate of 0.64 specific gravity not exceeding 0.03m3/h;
NOTE. The members of the European Committee for Electrotechnical Standardization, the leakage rate is 70L/h.
b) for the controller and liquefied petroleum gas for use with a specific gravity of gas leakage rate shall not exceed 1.53 0.014m3/h;
NOTE. The members of the European Committee for Electrotechnical Standardization, the leakage rate is 70L/h.
c) for the flammable liquid, such as gasoline, kerosene, and other controllers viscosity less than 1.2mm2/s for use with fuel oil, water
The leakage rate shall not exceed 0.001m3/h;
d) For the controller and viscosity greater than 1.2mm2/s lightest grade fuel oil for use with a water leakage rate shall not exceed
0.002m3/h.
Part of the strength of 18.102 (water pressure)
18.102.1 For use Bourdon tube, flexible metal bellows or diaphragm, etc., and there is no case of rated pressure 2000kPa or greater
The pressure-sensitive controller, the controller should be equal to the maximum withstand pressure test 1min four times the rated working pressure without bursting.
Test controllers should be connected to the hydraulic pump irrigation exclude air. The pressure slowly rise to the desired value.
During the test, if the leak did not occur in 50% of the required test pressure or less, and the test can be continued until 4 times the maximum rated
When the working pressure, leakage, or gasket with the Department are allowed.
18.102.2 For the Bourdon tube, flexible metal bellows or diaphragm member, member assembly within the housing pressure-sensitive controllers, shall comply
18.102.1 housing requirements, or should be.
--- Withstand twice the maximum rated working pressure of the hydraulic pressure test 1min without visible leakage, and
--- Withstand four times the maximum working pressure test 1min or if due to the damage of the equipment and pressure less than four times, at least by
That is three times the maximum rated pressure. But also to show that the housing can ease the pressure of four times the maximum rated pressure, but there is no harm surrounding
Any damage to people or the environment or show casing can withstand the test pressure.
This test is carried out according to 18.102.1.
18.102.3 voltage limiter or pressure cut-off device should be able to withstand the maximum rated working pressure equal to four times the water pressure of 1min without damage.
So that water-filled test controller connected to the removal of air and water pumps. Slowly increase the pressure required test pressure.
19 Threaded parts and connections
This is applicable in GB 14536.1.
20 creepage distances, clearances and distances through solid insulation through
This is applicable in GB 14536.1.
21 heat, fire and tr...