GB 14536.8-2010 (GB14536.8-2010)

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GB 14536.8-2010	English	145	Add to Cart	0--9 seconds. Auto-delivery	[GB/T 14536.8-2010] Automatic electrical controls for household and similar use -- Particular requirements for timers and time switches	GB 14536.8-2010	Valid	GB 14536.8-2010

GB 14536.8-2010
Automatic electrical controls for household and similar use.Particular requirements for timers and time switches
ICS 97.120
K32
National Standards of People's Republic of China
Replacing GB 14536.8-1996
Household and similar electrical automatic controller
Particular requirements for timers and time switches
(IEC 60730-2-7.2008, 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
IEC Introduction Ⅴ
1 Scope and normative references 1
2 Definitions 2
3 2 General requirements
4 General notes 2
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 9
19 Threaded parts and connections 9
20 creepage distances, clearances and distances through solid insulation through 9
21 heat, fire and resistance to tracking 9
Corrosion 22 10
23 Electromagnetic compatibility (EMC) requirements --- fired 10
24 assembly 10
25 normal operation 10
26 Electromagnetic compatibility (EMC) requirements --- Immunity 10
27 non-normal operation 10
28 Guidelines for the use of electronic disconnecting 10
Annex D (normative) heat, fuel and tracking 11
Requirements Annex H (normative) electronic controller 14
Value Annex AA (normative) vertical, with a line and stand-alone installation Timers and Time Switches 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 60730-2-7.2008 "Household and similar electrical controls timers and time switches special
Requirements "(second edition).
This part of the structure with the IEC 60730-2-7.2008 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 14536.8-1996 "Household and similar electrical controls timers and time switches - Particular requirements."
Compared with GB 14536.8-1996 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 1.1,1.1.1,1.1.2 adjusted accordingly, 1.1.3 and 1.1.4, instead of increasing the content of 1.2 rated
Voltage range accordingly adjusted, increased by 1.5 normative references;
c) Chapter 6 increase 6.5.101 items;
d) Chapter 17 increases the durability of changes to table 17.2-1, our corresponding overpressure test instead of the overload test, made 17.16
A major adjustment, the relevant standard data have also been adjusted;
e) Chapter 20, creepage distances, clearances and distances through solid insulation through increased deleting content;
f) increase in Chapter 28 Guidelines for the use of electronic disconnection;
g) Appendix D D.101.2.3 article changes the value;
h) increase in Appendix H.
This section Appendix D, Appendix H, Appendix AA normative appendix.
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. Zhenguan Electric Co., Ltd. Ningbo, Guangzhou Electric Apparatus Research Institute, Zhejiang Inspection and Quarantine Institute of Science and Technology,
Jiangsu Changheng Group automatic controller Ltd., Guangzhou CVC Technology Research Institute detection, known Ningbo Ou Electrical Technology Co., Ltd., Wuhu City, nine
Long Controls Co., Shunde District of Foshan City Electric Industrial Co., Ltd. Miharu, Chinese Academy of household appliances.
Drafters of this section. Tang Jianjun, Core hole fast, Du Li, Qian Feng, Tang Renxing, thanks to Long Ke, Zhu Zhou Yang, Shao Zhicheng, Jiayu Lin.
This part of the standard replaces the previous editions are.
--- GB 14536.8-1996.
IEC Foreword
1) IEC (International Electrotechnical Commission) is a worldwide standardization group composed of national electrotechnical committees (IEC National Committees)
Organizations. The object of IEC is to promote international cooperation on issues related to the standardization of the electrical and electronic fields. For this purpose
IEC addition to other activities, but also publishes International Standards, technical specifications, technical reports, public specification (PAS, Publicly
AvailableSpecifications) and guidelines (henceforth referred to IEC publication). Their preparation is entrusted to technical
Commission to complete. As a member of IEC National Committees, as long as the interest of the standard to be developed, may participate
Its formulation. Liaising with the IEC 's international, official or unofficial organizations are also involved in the development of standards.
IEC and the International Organization for Standardization (ISO ) in accordance with the conditions specified in the agreement, close cooperation.
2) since each technical committee has representatives from the National Commission on the relevant issues of interest, so the IEC on technical
Issue formal decisions or agreements on the maximum expression of the international consensus on the relevant issues.
3) IEC Publications have the form of recommendations for international use, and accepted by the National Committees in that sense. Despite being made
There are possible effort to ensure that the technical content of IEC publications is correct, IEC these publications can not be used
Way or misinterpretation of any user and responsibility.
4) In order to promote international unification, IEC National Committees in charge of the IEC international standards transparently converted to the maximum extent possible
National or regional standards. Between the IEC Standard and the corresponding national or regional standard if there is any difference, it should be converted into the standard
After clearly illustrates.
5) IEC did not develop any signs of approval procedure, when a device if it complies with the IEC declared a publication, which is not IEC
Accountable.
6) All users should make sure you have the latest version of this publication.
7) IEC or its leaders, employees, servants or agents, including independent experts and IEC technical committees, national committee
Members will, for the use of any person or the trust of the IEC standards or other IEC publication caused casualties, property damage
Loss or other damage to the natural environment (whether such losses are direct or indirect) does not bear any responsibility for the phase
Should produce costs and expenses (including legal fees) is not liable.
8) to pay attention to the relevant standards cited in this publication. Use the referenced standard is correct application of this standard essential.
9) It is noteworthy that this International Standard may involve some parts of the patent. IEC for the identification of some or all of this
A Class of the patent will be irresponsible.
IEC 60730-2-7 international standard by the IEC Technical Committee TC72. home automation controller Technical Committee.
This second edition cancels and replaces the first edition and 1994 Revision 1 was enacted in 1990. The second edition incorporates load tungsten white
Incandescent lamp and updated requirements IEC 60730-1.1999 and revised in 2007 requires 2 to form a technical revision.
Standard text based on the following documents.
Draft International Standards Vote Report
72/760/FDIS 72/764/RVD
For more information on this part of the vote, see the vote on the reports listed in the table.
Drafting of the publication to comply with ISO /IEC Guide. Part II.
This section should be used in conjunction with IEC 60730-1. It is based on the 1999 third edition of IEC 60730-1 and repair 2003
Order 1 and 2 of the 2007 revision of the foundation formed. IEC 60730-1 should be considered in subsequent versions or revisions.
This part supplements or modifies the corresponding provisions in IEC 60730-1 so as to convert the IEC standard. Particular timers and time switches
Claim.
When appearing in this part of the "addition", "modification" or "replacement", the first part of the relevant requirements, test description or explanatory content should
Be amended accordingly.
When no change, this section will indicate the appropriate sections or provisions apply.
In the development of a full international standard, we must consider the different requirements of the actual situation of the various regions of the world is formed, and should be recognized
Differences in each country's electrical systems and wiring rules.
Note. The differences between countries, with "Note. In some countries," the form is given, these differences see the following terms.
--- 4.1.4
--- 4.3.2
--- 6.3.6.101
--- Table 7.2 Note 101 and 102
--- 7.2.9
--- 11.4.103
--- 11.4.104
--- 14.101
--- 17.6.101.3
--- 17.6.103.1
--- Table 17.2-2 Notes 101 and 102
--- Table 17.2-3 Notes 101 and 102
--- 21.101
--- Appendix D
--- H.26.11
In this publication.
1) using the following printing fonts.
--- Requirements Body. Roman font.
--- Test specifications. italic type.
--- Note. The small Roman font.
2) On the basis of the increase in Part 1 of sub-clause, notes, projects and numbered starting from 101, additional annexes to the letters AA,
BB, etc. represent.
All belong to the IEC 60730 series, attributable to the standard, "household and similar use automatic controller" category list, you can IEC
Get on the website.
The Committee decided that the contents of this publication on the IEC website http.//webstore.iec.ch indicated, related to the specific publication
Remain unchanged before the next revision date. And to the revision date, the publication will be.
● reconfirmed;
● Cancel;
● The revised version of the alternative, or
● Amendment.
Household and similar electrical automatic controller
Particular requirements for timers and time switches
1 Scope and normative references
GB 14536.1 of the chapter is applicable except as follows.
1.1 Replacement.
In general, this section applies to use in household and similar equipment in timers and time switches, these devices can be used
Electricity, gas, oil, solid fuel, solar energy and other energy sources or a combination of these energy sources, these devices include heating, air conditioning and the like
application.
This section also applies to the control system as part of a separate timer or group with multi-function controller with no mechanical power output
Together timer. This section does not apply to delay switch within GB 16915.41) range (TDS).
Note. Unless specifically noted, as used in this section, "Timer" includes timers and time switches.
This section does not apply only to indicate the time or means for recording the time course.
This section does not apply to items integrated timing functions can not be tested alone multi-function controller.
1) Switch Part 2 GB 16915.4-2003, household and similar fixed electrical installations. Particular requirements - Section 3. delay switch.
1.1.1 Replacement.
This section applies to the inherent safety timer for security-related equipment operating characteristics, also applies to household and similar purposes
Appliance or other equipment (including charged or uncharged) Automatic electrical controls for the test inside use. In case there is no corresponding standard also applies
For industrial use, such as central heating, air conditioning and heat treatment.
Not as a general household, but used in public places, such as equipment from the shops, light industry and farm use by non-professionals, and its use
Timers are also included within the scope of this.
This section also applies to the timer used in the appliance within the range of GB 4706.1.
This section does not apply to timers designed for industrial use.
Note. "device" in this section use the term with "utensils and equipment."
1.1.2 Replacement.
This section applies to mechanical manipulation, electrical and mechanical manipulation, electrically operated or electrically operated automatic electronic controllers that can respond
Or control various characteristics, such as temperature, pressure goes, time, humidity, light, electrostatic effects, flow, level and so on.
1.1.3 Replacement.
This section applies mainly used for household and similar appliances and equipment with a small electric motor starting the automatic controller. This control
May be mounted in the motor, the motor may be separated.
1.1.4 Replacement.
This section also applies to non-automatic and automatic controllers control the whole.
1.2 Replacement.
This section applies to rated voltage not exceeding 690V, rated current not exceeding 63A controller.
1.3 Replacement.
This part of the automatic operation of the timer installed in the device-related response method unspecified. If the response of the user or around the ring
Border security is closely related to, by the appropriate household equipment standard or response values determined by the manufacturer in this section apply.
1.4 Replacement.
This section also applies to an electronic device with a timer, the corresponding requirements of Annex H.
1.5 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this part. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to this part of the research agreement
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this section.
GB 14536.1 of the chapter is applicable except as follows.
increase.
GB 16915.1 Switches for household and similar fixed electrical installations - Part 1. General requirements (GB 16915.1-2003,
IEC 60669-1.2000 (Ed3.1), MOD)
GB 4793.1 measurement, control and laboratory safety requirements for electrical equipment Part 1. General requirements (GB 4793.1-
2007, IEC 61010-1.2001, IDT)
2 Definitions
GB 14536.1 of the chapter is applicable except as follows.
2.3 function controller and related definitions
Increase definition.
2.3.101
Timing cycle timingcycle
It contains charged appliance from the beginning to the end of a complete cycle of all the switching operation of the program.
2.5 definitions associated with different controller structures
Increase definition.
2.5.101
Plug-in timer plug-intimer
Designed for direct insertion into the socket timers and time switches.
NOTE. Plug-timer from a timer attached to the housing itself or a prominent, with a timer to be connected socket that matches the conductor or plug.
2.5.102
TV Timer TVtimer
It can be set by the user of the class A controller for a television apparatus, which is used by the power switching elements and associated with various
Short electrical characteristics of electronic components produced by high inrush currents.
Note. Examples of these electric and electronic components and parts of a power transformer, filament tube, large size capacitor and a TV, radio and video products in
Other components.
2.5.103
Synchronization timer synchronoustimer
In the original mechanism or device load supply frequency time base timer affect the transmission or timer switch.
2.5.104
Hand-wound timer hand-woundtimer
Provide transmission timer timer switch or by the starter.
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.
4.1.4 Addition.
Note 2). In the United States, the first predetermined test 14.101, the remainder of the test, carried out sequentially in this section.
2) China's use.
4.3.2.1 Added.
Note 2). In Canada and the United States, in order to reduce the test, a number of timer motor load rated voltage specified in Table 17.2-2 corresponding to the maximum amount
Constant voltage voltage and current values tested. If the current value corresponding to a lower voltage than the corresponding maximum rated voltage of the current table 17.2-2
135% larger value, the timer also for lower-rated test. At low voltage high current is required by Chapter 14, respectively
Heating test. If more than one test from each of the tests carried out with a sample.
5 RATINGS
This is applicable in GB 14536.1.
Category 6
GB 14536.1 of the chapter is applicable except as follows.
6.3 By Application
6.3.6 increase provisions.
6.3.6.101 --- TV timer;
Note 2). In Canada and the United States, with a timer on the TV and the test should be required to declare in this section.
6.4 Classification by automatically operating characteristics
6.4.3 increase provisions.
6.4.3.101 --- power is interrupted automatically reset timing operation (1.Q or 2.Q type).
6.4.3.102 --- off during power interruptions, and when power is restored at the cutting point restart timing operation (1.R or
2.R type).
A time action 6.4.3.103 --- timer switch, which in the case of power interruption time does not exceed the energy reserves of time,
A predetermined operation to restore order, as the power supply has not been interrupted (1.S or 2.S type).
6.4.3.104 --- at an ambient temperature of 20 ℃ ~ 25 ℃ when, having declared run precision timing operation (1.T or 2.T type).
6.4.3.105 --- set time difference and the actual switching time does not exceed the stated values timing operation (1.U 2.U and type).
6.5 Press pollution protection and control in which the classification
Addition of provisions.
6.5.101 Statement by industry classification of environmental conditions (see GB 4793.1).
6.10 the number of cycles per start manual operation (M) Category
Preferably of.
Addition of provisions.
6.10.101 --- 500 cycles;
6.10.102 --- 2500 period;
6.10.103 --- 5000 period;
6.15 Classification by structure
Addition of provisions.
6.15.101 --- insert Timer
7 Information
GB 14536.1 of the chapter is applicable except as follows.
7.2 provide information on the way
7.2.9 Addition.
Note 2). in Germany, for 1.S and 2.S type operation, energy storage based on the letter "R" and followed by the energy storage time indicated, followed by the showing time
Symbol Unit, according to the following.
Min min
H h
Day d
In a
Table 7.2
Information chapter, strip method
modify.
Replaced with the following corresponding to the following.
Each type of load circuit 7 controlled 7) 101) 6.2,14,17 C
Starting 26 the number of cycles for each manual operation (M) 102) 6.10 X
Automatic number of cycles for each automatic action 27 (A) 102) 6.11, Appendix AA X
28 1.M 2.M type or type of operation life (Y) 102) 6.16 X
Add the following items.
101 TV timer 103) 2.5.102 C
102 Power reserve time 6.4.3.103 D
103 hand-wound switch uptime 11.4.103 D
104 run precision and setting accuracy 6.4.3.104,6.4.3.105,11.4.104 D
increase.
101) in the United States and Canada, with tungsten load timer, or can also be used to communicate with the DC timer, in addition to providing general electrical aspects
Data, must also sign the type of load, the nature of current and voltage ratings. 2)
For can also be used for direct communication controller should be marked "T", the controller is only used for communication should be marked "L". Such signs shall
The only models with flag after the controller or after the electrical ratings.
102) with respect to a predetermined value line controller, vertical stand-alone installation of the controller and controller in Annex AA, see also 17.1.3.101.
103) in the United States and Canada, there are TV ratings timer must mark the manufacturer's name or trademark, type of load and electrical ratings. Signs shall
After the "TV" and the subsequent rating of Jia Anpei constituted ampere rating should be placed on other electrical rating, if the controller with no additional rated
Value, the rating will go separate marks. 2)
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
This is applicable in GB 14536.1.
11 structural requirements
GB 14536.1 of the chapter is applicable except as follows.
11.4 Action
increase.
11.4.101 1.Q or 2.Q type action
1.Q or 2.Q action should be designed so that when the power is turned off automatically reset.
Compliance is checked by inspection and test inspection.
11.4.102 1.R or 2.R type action
1.R or 2.R type action should be designed so that when the power is turned off action terminated, when the power is restored, action to recover from the final break.
Compliance is checked by inspection and test inspection.
11.4.103 1.S or 2.S type action
1.S or 2.S type action should be designed so that when power is interrupted for less than a predetermined time in the case of energy reserves, can restore its intended
Sequence of operations, as the power supply has not been interrupted.
It meets the requirements in energy reserves after a given time switch operation immediately determined. Power storage shall be equal to the voltage
0.85 times the rated voltage and 1.1 times the rated voltage. To each test at a later time switch it is fully tightened.
For hand-wound timer switch, operation time should be the time stated.
Note. In Germany, the shortest running time is 3d, the best control in the 8d.
11.4.104 1.T or 2.T type action
1.T or 2.T type action should be designed so that they are consistent with the stated running accuracy at 20 ℃ to 25 ℃ ambient temperature.
Note 2). In Germany, the time switch must be running accuracy at ± 60s/d or less. Synchronous time switch (S, T type) the accuracy of the power storage time should be
500s/d or less.
In Germany, at 0.85 times to 1.1 times the rated voltage, rated frequency deviation of ± 2%, the actual elapsed time and elapsed time calculation error shall annually
Less than 30min.
Compliance is checked by inspection and test inspection.
11.4.105 1.U or 2.U action
1.U or 2.U type action should be designed so that the set of measures, dial indicating devices function and switch operating mechanism to ensure that the set
Time and time difference is not greater than the actual value of the claim.
These deviations shall not exceed.
± 1min, for there is "h" dial timer switch.
± 30min, for there is "24h" dial timer switch.
± 3.5h, For "7d" dial timer switch.
± 14h, for the "month" dial timer switch.
± 7d, for the "12 months" dial timer switch.
It is qualified for three consecutive test by checking with h, 24h and 7d dial timer switch.
12 moisture and dust
This is applicable in GB 14536.1.
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.
Addition of provisions.
14.101 temperature stress test
Note 12). In the United States, if the timer start mechanism or current-carrying components of self-supporting element of thermoplastic material, temperature stress tests should be carried out.
Note 22). This test is not used for the timer other parts, which are neither self-supporting member to live parts, nor is it connected with the starting mechanism
part.
Note 32). Sample pre-treatment for electrical test to 300h in the air flow chamber, the temperature inside the box is specified by the manufacturer to use the timer
Withstand the temperature. For the predetermined temperature is below 50 ℃ or less timers, not thermal stress.
Note 42). After completion of the test, to make the sample temperature was cooled to room temperature, and then the rest of the test.
15 Manufacturing deviation and drift
This is applicable in GB 14536.1.
16 Environmental Stress
This is applicable in GB 14536.1.
17 Durability
GB 14536.1 of the chapter is applicable except as follows.
17.1.3 Test procedures and conditions
17.1.3.3 Addition.
For 17.7 and 17.8 during the tests have been done manual operation to subtract the number of operating cycles in both trials made in week
Periods.
If the test procedure from 17.10 to 17.13 in the use of the clutch, it should not start too fast due to the errors. If this
Mistakes or considered easy to mistake the starting speed should be standard. Stop time should be calculated in the cycle, in order to release the normal use
Heat generated.
Addition of provisions.
17.1.3.101 only timer, the end of each cycle to be an appropriate start to begin the next cycle.
If the timer or the timer switch has a different program, you should select the maximum number of cycles Contact operation procedures, unless the manufacturer provides a special
Test Procedure.
If the program does not lead to any action contacts should use different test procedure was repeated on a new sample group or several groups to determine
Ensure that all contacts can be subjected to the test. When the timer is designed so that it can be reasonably predicted from the test results of the first set of samples of these additional test
Sample test results, these samples do not have to carry out additional tests, such as contacts at all the same situation can be done reasonably predicted.
If you are using a dedicated test program timers test should be designed to ensure that by performing this specific test procedures can reasonably
All test results predict timer prescribed procedure.
Belt line, vertical-mounted and stand-alone controller, the test shall be as follows.
--- Applies to timer resistive load, the number of cycles for each contact time switch operation A 5000.
By the timing of starting the switching operation of each manual (M) whose period is 500 (including the operation of the contacts 500 cycles).
--- Applies to timer resistive load or inductive load, the number of cycles for each contact action of 5000, including. a first
A group of 2,500 cycles, or 17.2-3 Table 17.2-1,17.2-2 with major provisions of a resistive load test; the remaining
A second set of cycles should be 2500, or 17.2-3 Table 17.2-1,17.2-2 provisions with resistive or inductive loads.
This timer start of each cycle of M manual operation should be 500 (including the test load resistor contact operation 500
cycle).
--- If the timer needs an extra electrical or mechanical signals, to change it from a stationary position, then it should simulate
If necessary, use the method specified by the manufacturer.
--- For the Type 2 operation with timers and time switches, any electrically-driven prime mover should at least be carried out under conditions of power 0.9VR
50% of the number of test cycles.
The rest of the load and connections as 17.7.
--- Type 1 action timers and time switches, if there is any fault on the negative acceleration (such as excessive clamping...