GB 19214-2003 Electrical accessories - Residual current monitors for household and similar purposes
Some standard content:
ICS 29. 130
National Standard of the People's Republic of China
GB 192142003/1EC 62020.1998
Electrical accessories
Residual current monitors for household and similar uses(RCM)(1EC 62020;1998,IDT)
Issued on 2003-06-24
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Implementation on 2004-02-01
All technical contents of this standard are mandatory. CB 19214—2003/1EC 62020: 1998 This standard is the product standard for residual current monitors for household and similar purposes. In terms of residual current operating characteristics, it adopts GB68291995 "General requirements for residual current protective devices". This standard is equivalent to IEC62020: 1998 "Electrical accessories - Residual current monitors for household and similar purposes" (English version). Annex A and Appendix B of this standard are normative appendices, and this standard is proposed by the China Electrical Equipment Industry Association. This standard was drafted by the National Low Voltage Electrical Equipment Standardization Technical Committee and Shanghai Electric Science Research Institute. The participating drafting units of this standard are: Schneider Electric (China) Investment Co., Ltd., Beijing ABB Low Voltage Electrical Equipment Co., Ltd. The main drafters of this standard are Zhou Jigang and Gong Junchang. The co-drafters of this standard are He Caifu, Ruan Tao and Bao Zhangyao. Scope
Electrical accessories
G3 19214-2003/IEC 62020:1998 Residual current monitors for household and similar purposes This standard applies to residual current monitors (hereinafter referred to as RM) for household and similar purposes with a rated voltage not exceeding AC 410V and a rated current not exceeding 125A.
RCM is a meter that monitors the residual current in the equipment and issues an alarm signal when the residual current between the live parts and the exposed conductive parts or the ground exceeds a predetermined value.
RCM detects suddenly applied or slowly rising AC residual current and pulsating DC residual current (see 8.16). This standard applies to devices that can simultaneously perform the functions of detecting residual current, comparing the residual current value with the residual operating current, and providing a predetermined alarm signal when the residual current exceeds the residual operating current value. This standard does not include RCMs with internal batteries. The technical requirements of this standard apply to normal environmental conditions (IEC 61557-7). Additional technical requirements may be required for RCMs used in locations with severe environmental conditions. This standard does not include insulation monitoring devices (IMDs). This device falls within the scope of IEC 61557-8. Note: The difference between RCMs and IMDs is that the monitoring function of RCMs is passive and can only respond to unbalanced fault currents in the monitored equipment. The monitoring and monitoring functions of IMEs are active and can measure the balanced and unbalanced insulation resistance or impedance in the equipment (IEC 61557-8). 2 Normative references The clauses in the following documents become clauses of this standard through reference in this standard. All subsequent amendments (excluding errors) or revisions of dated referenced documents are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated referenced documents, the latest versions shall apply to this standard. GR156--1993 Standard voltage (neqIFC G0038:1983) C13/T2423.41993 Basic environmental test procedures for electric and electronic products Test Di: Cyclic damp heat test force method (egIEC600682-301980)
GB/T2124.21993 Basic environmental test procedures for electric and electronic products Thermal test guide (egIEC60068-2-281900)
GB/F2900. 181992 Electrical terminology Low voltage electrical appliances (e1V1F60050-441: 1984) GB4208--1993 External protection grade (IP code) (eqV1EC60529: 1989) GB/T5169.101997 Fire hazard test for electrical and electronic products Test methods Glow wire test methods General rules (idtIFC60695-2-1/0: 1994)
GB/T 6405.21996 Graphical symbols for electrical equipment (idl.IF 60417-2: 1994) GB6829-1995 General requirements for residual current operated protective devices (eqVIEC60755: 1983) GB/T7676 (all parts)-1998 Direct-acting analog indicating electrical measuring instruments and their accessories (idtIEC60051) GB16895.4: 1997 Building electrical installations Part 5: Selection and installation of electrical equipment Chapter 53: Switchgear and control equipment (idt IEC60364-5 53:1994)GR16895.12-200T Electrical installations in buildings Part 4: Safety protection Chapter 11: Overvoltage protection: Section 443: Day/overvoltage or operating overvoltage protection (idtIEC:603644443:1995)GB767161-2003 Residual current operated circuit breakers (RCCH) for household and similar purposes without overcurrent protection Part 1: General rules (idt IEC 51008-1:1996)CB19214--2003/JEC62020:1998
GR/T 16935. 1--1997
Insulation coordination of equipment in low voltage systems Part 1: Principles, requirements and tests (itt IEC60664 1:1992)
GB18499:2001 Electromagnetic compatibility of residual current devices (RCD) for household and similar purposes (idtIEC61543:
IFC 60038:1983 Standard voltage
TFC:60050101:1998 International Electrotechnical Vocabulary (IEV) Chapter 101 Mathematics IEC60050-151:1978 International Electrotechnical Vocabulary (IEV) Chapter 151 Electrical and magnetic devices 1EC61557-8:1997 Electrical safety test equipment, monitoring of measuring or protective measures for low-voltage distribution systems of AC to 1000V and DC to 1500V, Part 8: Insulation monitoring devices of the system IS0/IEC Guide 2:991 General terms and definitions for standardization and related activities 3 Terms and definitions
This standard adopts the following definitions.
Unless otherwise specified, the terms "voltage\ and\current" used in this standard are effective values. 3.1 Definition of current flowing from live parts to earth 3.1.1
earth fault current
ground fault current
current flowing to earth through the lower insulation barrier. 3.1.2
earth leakage current
current flowing to earth from live parts of equipment due to insulation fault. 3.1.3
palsating direct current
palsating direct current
a pulsating waveform current whose current value is zero or does not exceed 0.096 A DC in a time interval of at least 150° in each rated power frequency cycle (IEV101-14 31). 3.1.4
current delay angle acurrent delay angle'The time expressed in degrees that the start of current conduction is delayed by phase control. 3.2 Definition of RCM excitation
energizing quantity
applied alone or together with other such quantities to a RCM so that it can perform its functions under specified conditions. 3.2.2
energizing input-quantity energizing input-quantity The energizing quantity of the RCM action when applied under specified conditions. For example, these conditions may include the energization of certain auxiliary components. 3.2.3
residual current (I)
residual current (I)
The sum of the instantaneous values of the current flowing through the main circuit of the RCCM (expressed as an effective value), 3.2.4
Residual operating current (L) Residual current value that causes the RCM to operate under specified conditions. 3.2.5
Residual nonroperating current (Ian) Residual nonroperating current (fane) GR 19214—2003/IEC 62020.1998 At this current or lower than this current, the RCM does not operate under specified conditions. 3.3 Definition of RCM operation and function
Residual current monitor (RCM) residual current monitor is a device or combination of devices that monitors the residual current of electrical equipment and drives an alarm when the residual current exceeds its operating value. 3.3.2
RCMs whose operating function is independent of the power supply voltage are RCMs whose detection, judgment and driving functions are independent of the power supply voltage. 3.3.3
RCM RCMs whose function of action is related to the power supply voltage are functionally dependent an RCM whose detection, judgment and driving functions are related to the power supply voltage. Note: Obviously, the power supply voltage applied to the RCM is for detection, judgment and driving. 3.3.4
Limiting non-actuating time limitingnon-actuatingimt The maximum delay time for applying a residual current value greater than the residual non-actuating current to the RCM without causing it to act. 3.3.5
Time-delay RCM time-delay RCM
A specially designed RCM that can achieve a predetermined limiting non-actuating time corresponding to a given residual current value. 3.3.6
Main circuit (of a RCM) Main circuit (of a RCM) includes all conductive parts of the RCM in the current path. (See 4.3) 3.3.7
Control and auxiliary circuit (of aRCM) All conductive parts of an RCM included in a circuit other than a half circuit. Method: This definition includes circuits used for test equipment. 3.3.8
Type A RCM RCM Type A
RCM that is guaranteed to operate in response to a sudden or slowly applied residual sinusoidal alternating current and residual pulsating direct current. 3.3.9
Test device
Device installed in the RCM that simulates the residual current conditions that would cause the RCM to operate under specified conditions. 3.3.10
Alarm state alarm stule
The alarm state is when the residual current in the monitored equipment exceeds the preset value of the RCM. 3.3.11
Emon-alarmstate
Non-alarm state
Alarm state means that the residual current of the monitored device is less than the preset value of the RCM. 3, 3.12
Actuation time aetuating lime
The time required for the RCM to switch from the non-alarm state to the alarm state when a residual current exceeding the preset value suddenly appears. 3.3.13
FunctionalearthconnectionfunctionalearthconnectionElectrical connection between RCM and earth. Used to ensure correct actuation when the neutral line on the power supply side is disconnected.
A reference point for the RCM with discrimination function. 3.4 Definitions related to excitation values and ranges 3.4.1
rated value
the value specified by the manufacturer for the specific operating conditions of the RCM. 3.4.2
non-aperating overcurrents in the main circuit The definition of the non-aperating overcurrent limit value is given in 3.4.2.1 and 3.1.2.2. NOTE: In the case of an overcurrent in the main output, the detection device may operate even if there is no residual voltage due to the asymmetry of the detection device itself. 3.4.2.1
limiting value for overcurrent in case of a load through a RCM with two current paths The maximum overcurrent load that can flow through a RCM with two current paths without causing it to switch to the alarm state in the absence of any fault to the frame or to the ground and in the absence of leakage current to the ground. 3. 4.2.2
limiting value of overcurrent in case of a single phase load through a RCM
The maximum value of the single phase overcurrent load that can flow through the RCM without causing it to switch to an alarm state in the absence of any fault to the frame or to earth and in the absence of leakage current to earth.
residual short-circuit withstand currentresidual shori-circult withstatd currentThe maximum residual current that can ensure the operation of the RCM under specified conditions, above which the device may be subject to irreversible changes:
prospective currenl
The current that would flow in the circuit if each main current loop of the overcurrent protective device of the RCM (if any) were replaced by a conductor of negligible impedance.
Note: The prospective current can be considered as an actual current, such as the prospective breaking current, the prospective peak current, the prospective residual current, etc. 3.4.5
Conditionat short-circuit current The AC component value of the prospective current that a RCM protected by a suitable outgoing short-circuit protection device (hereinafter referred to as SCPI) can withstand under specified conditions of use and working. 3.4.6
Condltional residual short-circuit current The AC component value of the residual prospective current that a RCM protected by a suitable intermediate SCPD can withstand under specified conditions of use and working.
F Joule integral) The square of the current is integrated over a given time interval (). Ft ax
3.5 Definitions related to the value and specification of influencing quantities d
Influencing quantity inuencing quantity
A quantity that may change the specified action of the RCM. 3.5.2
reference value of an influencing quantityreference value of an influencing quantityvalue ... 3.6 Definitions related to terminal blocks
Note: This definition may be revised after the work of Subcommittee 23F on terminal blocks is completed. 3.6, 1
Terminal
Conductive part of an RCM that can be repeatedly used to make electrical connections to external circuits. Note: Examples of terminal block designs are given in G 1691f.1 Informative Appendix IC3.6.2
serew-typeterminal
screw-type terminal
a terminal for connecting a conductor and then disconnecting the conductor, for connecting two or more disconnectable conductors to each other, the connection is made directly or indirectly by various screws or nuts. 3.6.3
pillar terminal
a screw-type terminal in which the wire is inserted into an internal cavity and the wire is pressed against the end of the screw. The tightening pressure can be applied directly by the end of the screw or through a transition element applied by the end of the screw. 3.6.4
screw terminal screw lerminal
a screw-type terminal in which the wire is tightened under the screw head. The tightening pressure can be applied directly from the screw head or through a transition element, such as a washer, a clamp or a loosening prevention device. 3.6.5
studtermine
A screw-type terminal in which the conductor is fastened under a nut. The fastening pressure may be applied directly through a nut of suitable shape or through a transition piece such as a washer, a plate or a locking device. 3.6.6
saddledeterminnl
A screw-type terminal in which the conductor is fastened under a quasi-saddle plate by two or more screws or nuts. GB19214--2003/EC62020:1998
lag-type terminal
A screw-type terminal or bolt-type terminal designed to fasten a cable lug or busbar with a screw or nut. 3.6.8
Threadless terminal A terminal for connecting a conductor and subsequently removing it, or for the removable connection of two or more removable conductors, the connection being made directly or indirectly by means of a spring, wedge, eccentric wheel or cam, etc., and requiring no special treatment of the conductors other than stripping the insulation.
Self-tapping screws
A screw made of a material with a higher resistance to deformation that is screwed into a hole in a material with a lower resistance to deformation than the screw. The screw is formed into a tapered thread, the inner diameter of the thread at the end of which is rounded. The thread produced by the screw action can only be reliably formed after the screw has been turned a sufficient number of times to complete the thread of the main part.
Self-tapping screws formed by extrusion of threads have a self-retracting screw with continuous threads, and the threads do not have the function of cutting out material from the hole. 3.6, 11
thread cutting tapping screw thread cutting tapping screw with discontinuous threads, the threads of which have the function of cutting material from the hole. 3.7 operating condition
operating operation
the transition of the RCM from the non-alarm state to the alarm state or vice versa. 3.7.2
clearance the shortest distance in air between two conductive parts. NOTE: For the purpose of determining the clearance for accessible parts, the accessible surface of the enclosure shall be considered conductive, such as the surface of the enclosure that can be touched by the hand or the push test finger of Figure 1. 3.7.3Www.bzxZ.net
creepage distance
the shortest distance along the surface of the insulating material between two conductive parts. NOTE: To determine the electrical distance to the accessible parts, the accessible surfaces of the enclosure shall be considered conductive, as if the accessible surfaces were covered with a metal box. 3.8 Tests Type test Tests performed on one or more devices manufactured to a certain design to demonstrate that the device complies with certain technical requirements. 3.8.2 Routine tests Tests performed on each device being manufactured and/or completed to determine whether it complies with certain criteria. 4 Classification
RCM is classified as follows:
4.1 According to the mode of action
4. 1. 1 RCM whose action function is related to the power supply voltage, 4.1.2 RCM whose action function is related to energy other than the power supply voltage 4.2 According to the installation type
RCM with fixed installation and fixed wiring:
GB19214200371EC620201998
Mobile and cable-connected RCM (the device itself is connected to the power supply with a cable). 4.3 According to the number of current circuits
RCM with two current circuits;
RCM with one current circuit:
RCM with one current circuit.
4.4 According to the function of adjusting the residual operating current, it is divided into RCM with non-adjustable residual operating current.
Note: Some RCMs with non-adjustable residual operating current can preset the alarm level. RCM with pre-adjustable residual operating current value. 4.5 According to the possibility of adjusting the delay, it is divided into RCM with non-adjustable delay:
RCM with adjustable delay.
4.6 According to the protection against external influences, it is divided into: - Enclosed RCM (no need for a suitable housing): ... - Non-enclosed RCM needs to be equipped with a suitable outer shell for complete use). 4.7 According to the installation method, it is divided into: - Surface mounted RCM, - Embedded RCM; - Plate type RCM. Also called distribution board type
Note: These types can be installed on the mounting rail. 4.8 According to the wiring method, it is divided into
RCM with wiring type not related to mechanical installation; -RCM with wiring method related to mechanical installation, such as: plug-in type, bolt type, Note: Some RCM may only use plug-in type or bolt type at the incoming line end, and are often suitable for wiring at the negative end. 4. 9 According to the connection method of the load conductor, it is divided into
4.9.1 The load conductor is not directly connected to the RCM, including: RCM with only internal current transformer
...·RCM with only external current transformer. -RCM with internal current transformer and can be connected to external current sensor. 4.9.2 The negative conductor is directly connected to the RCM. 4.10 According to the fault indication device, it is divided into
Visual indication device, which cannot be reset under fault conditions (minimum requirement); visual and audio indication device - the audio device can be turned off by the user under fault conditions! : - Visual indicating device with relay output: The relay can be closed by the user under fault conditions. - Visual indicating device with other output signals: 4.11 Ability to distinguish the direction of residual current according to the power supply side and load side (applicable to IT systems)
--- Cannot distinguish the direction of the hall
GB19214—2003/IEC 62020,19985 Characteristics of RCM
5.1 Summary of characteristics
The characteristics of RCM are specified in the following clauses:
Installation type (see 4.2)
Number of current paths (see 4.3)
—Rated current 1. (see 5.2.2)
---Rated residual operating current I (5.2.3)—Rated residual non-operating current Iam see 5.2.4) Rated voltage U1, (see 3.2.1);
Rated frequency (see 5.2.5):
Delay, if applicable;
—Operating characteristics when the residual current has a DC component (see 5.2.6) 1.． Insulation coordination, including electrical spacing and electrical distances (5.2.7); - Protection level (GB4208);
-- Rated limiting short-circuit current I (only applicable to RCMs with connection method 4.9, 2): - Rated limiting residual short-circuit current 1 (only applicable to RCMs with connection method 4.9.2): - Working condition of RCM when power supply voltage fails (4.1.1): Working condition of RCM when energy source other than power supply voltage fails (4, 1.2), 5.2 Rated quantity and other characteristics
5.2.1 Rated voltage
5.2.1.1 Rated working voltage (U,)
The rated working voltage of RCM (hereinafter referred to as rated voltage,) is the voltage value related to the performance of RCM specified by the manufacturer. Note: The manufacturer can specify several rated voltages for one RCM. 5.2.1.2 Rated insulation voltage (U,)
The rated insulation voltage of the RCM is the voltage value related to the dielectric test voltage and the electrical distance specified by the manufacturer. Unless otherwise specified, the rated insulation voltage is the maximum rated voltage value of the RCM. In any case, the maximum rated voltage shall not exceed the rated insulation voltage.
5.2.2 Rated current (Im)
The current value that the RCM can carry under uninterrupted operation as specified by the manufacturer. It is applicable to RCMs with connection mode 1.9,2. 5.2.3 Rated residual operating current (1)
The residual operating current specified by the manufacturer for the RCM (see 3.2.4), at which the RCM should operate under specified conditions. Note: For RCMs with several residual operating current setting values, the rated residual operating current is marked with the maximum setting value. 5.2.4 Rated residual non-operating current (Im) The residual non-operating current value specified by the manufacturer for the RCM (see 3.2.5), at which the RCM will not operate under specified conditions.
5.2.5 Rated frequency
The power supply frequency specified for the RCM and other characteristic values corresponding to it. Note: The same RCM can specify several rated frequencies. 5.2.6 Operating characteristics when the residual current has a DC component The RCM that ensures the operation of the residual positive alternating current and residual pulsating DC current that are suddenly applied or slowly rising. Note: This operating characteristic corresponds to Type A in GB16916.1. 5.2. Insulation coordination including electrical clearances and creepage distances is being considered.
Note: Before, electrical clearances and creepage distances are in accordance with 8.1.3. 5.3 Standard values and preferred values
5.3.1 Optimal values of rated voltage (U1)
GB 19214—2003/IC 62020:1998 According to IEC60038, the voltage values 230V and 400V have been standardized, and these voltage values should gradually replace 220V and 240V, as well as 380V and 415V.
In this standard, whenever 230V and 400V are mentioned, they can be regarded as 220V or 240V, 380V or 415V respectively. For single-phase three-wire systems, the standardized voltage is 120/210V. 5.3.2 Preferred values of rated current (I.)
Preferred values of rated current (applicable only to RCMs with connection mode 4.9.2): 10, 13, 1ti. 20, 25. 32, 40. 63, 80. 100, 125 A. Note: For RCMs classified in 4.9.1, the rated current is limited by the physical size of the external sensor or internal transformer or the RCM itself. 5.3.3 Preferred values of rated residual operating current (I.) The rated residual operating current is:
0. 006, 0.01, 0. 03, 0. 1. 0.3, 0. 5 A. When the RCM head has multiple residual operating current setting values, the rated value refers to the lowest setting value. 5.3.4 Standard value of rated residual non-operating current (I) The standard value of rated residual non-operating current is 0.51 Note: For residual pulsating direct current, the residual non-operating current is related to the current residual angle (see 3.4). 5.3.5 Standard minimum value of non-operating overcurrent when RCCMs of multiple current circuits are connected to multi-phase balanced loads (see 3.4.2.1) When multiple RCMs with the same current path are connected to multi-phase regular loads, the standard minimum value of non-operating overcurrent is 6I. 5.3.6 Standard minimum value of non-operating overcurrent when RCM is connected to a single-phase load (see 3.4.2.2) The standard minimum value of non-operating overcurrent when RCM is connected to a single-phase load is 6I. Note: This clause does not apply to RMs classified in 1.9.1. The minimum value of non-operating overcurrent of RCMs classified in 4.9.1 should take into account their declared rated current (see the note to 5.3.2). Therefore, 1.9. [Classification of residual operating current can be set to the corresponding minimum value of each current transformer. 5.3.7 Rated frequency preferred value
The rated frequency preferred value is 50H//or 6H7. If other frequency values are used, the rated frequency should be marked on the device and the test should be carried out at this frequency. 5.3.8 Standard and preferred values of limiting short-circuit current (Inc) (only applicable to RCM of connection mode 4.9.2) 5.3.8. 310 000 4 and below
The rated limiting short-circuit current 1 value of 1000A and below is the standard value, the standard value is: 3000A, 4500A, 6400A. 10 000 A.
The corresponding power factor is specified in Table 13.
5.3.8.2 Values greater than 10000A
Values greater than 10000A~25000A (including 25000A). The preferred value is 20000A. The corresponding power factor is specified in Table 73
This standard does not consider values greater than 25°C00A. 5.3.9 Maximum driving time (1)
The driving time when the residual current is equal to or greater than 1 should not exceed 10s. 5.3.1 Minimum value of internal impedance of RCM with direction discrimination function At rated frequency, the internal impedance between the power terminal and the FE terminal should not be less than 10M. 5.4 Coordination with short-circuit protective devices (SCPD) (applicable only to RCMs connected in accordance with 4.9.2) 5.4.1 Overview
GB 19214—2003/1EC 62020: 1998 According to the installation rules of IFC60364, RCMs shall be short-circuit protected by circuit breakers or fuses conforming to the relevant standards. Under the general conditions of 9.11.2.1, the coordination of the RCM and the SCPD shall be verified by the test specified in 9.11.2.2 to verify that the RCM provides adequate protection for short-circuit currents up to and including the limiting short-circuit current I and the limiting residual short-circuit current I. 5.4.2 Rated conditional short-circuit current (1)
The effective value of the expected current that a RCM protected by a SCPD can withstand under specified conditions without impairing its function, as specified by the manufacturer.
For specified conditions, see 9.11.2, 2a).
5.4.3 Rated conditional residual short-circuit current (I) The value of the prospective residual current that a RCM protected by a SCPE) can withstand under specified conditions without changes that impair its function, as specified by the manufacturer.
For specified conditions, see 5,11.2.2b).
6 Marking and other product data
Each RCM shall be marked in a permanent manner with all or part of the following data (for small products). Manufacturer's name or trademark;
) Model, registration number or serial number;
Rated current;
Rated frequency, if the design frequency of the RCM is not 50 Hz and/or 60 H2 (see 5.3.7); e
Rated current;
Rated residual operating current:
Residual operating current setting value (when the RCM has several residual operating current setting values): h)
Protection level (only when it is not I20)
i) Position of use (when necessary) (symbols are in accordance with GB/T7676); j) Operating parts of the test device, represented by the letter D: k) Wiring diagram:
1) The operating characteristics when the residual hazardous current contains a non-conductive component are represented by the symbol:. ) "Installation symbols for which the sound signal can be turned off:) Installation instructions, including identification of current sensors that can be used for R(M):) RM currency symbols with direction discrimination. Transmission components, such as alarm devices for H, should be marked according to the requirements of a), b), c), d) and m) (when applicable). For small RCMs, if it is not possible to mark all the above data in the place where it is used, at least the contents of items e), ),> and m) should be marked and visible during installation j). The data of items a), b), c>, i), k) and a) can be marked on the side or back of the RCM and can be seen before installation. In addition, the content of item k) can be marked on one side of any cover that must be opened when connecting the power cord. Any other data not marked should be given in the manufacturing sample.
The manufacturer shall give one or more appropriate SCPDs in its samples and in the instructions provided with the RCM that meets the connection method of 1.9.2. For reference.
Red should not be used for the test button of the RLM, nor for setting the setting (if any). If the power supply and load terminals must be distinguished, they should be clearly marked (for example, with "power supply" and "load" near the terminals or with arrows indicating the direction of current flow). The terminals on the RLM used to connect the current sensor should have obvious identification marks. The terminal specially used for hand connection of the neutral line should be indicated by the letter N.2 Rated current (I,)
The current value that the RCM can carry under uninterrupted operation as specified by the manufacturer, applicable to RCMs with connection mode 1.9,2. 5.2.3 Rated residual operating current (1)
The residual operating current specified by the manufacturer for the RCM (see 3.2.4), at which the RCM should operate under specified conditions. Note: For RCMs with several residual operating current setting values, the rated residual operating current is marked with the maximum setting value. 5.2.4 Rated residual non-operating current (Im) The residual non-operating current value specified by the manufacturer for the RCM (see 3.2.5), at which the RCM will not operate under specified conditions.
5.2.5 Rated frequency
The power supply frequency specified for the RCM and other characteristic values corresponding to it. Note: Several rated loads may be specified for the same RCM. 5.2.6 Operating characteristics when residual current has a DC component RCM that ensures operation for a suddenly applied or slowly rising residual positive alternating current and residual pulsating DC current. Note: This operating characteristic corresponds to type A in GB16916.1. 5.2. Insulation coordination including electrical clearances and creepage distances is under consideration.
Note: Before, electrical clearances and creepage distances are in accordance with 8.1.3. 5.3 Standard values and preferred values
5.3.1 Rated voltage preferred value (U,)
GB 19214-2003/IC 62020:1998 According to IEC60038. Voltage values 230V and 400V have been standardized, and these voltage values should gradually replace 220V and 240V and 38uV and 415V respectively.
In this standard, whenever 230V and 400V are mentioned, they can be regarded as 220V or 240V, 380V or 415V respectively. For single-phase three-wire systems, the standardized voltage is 120/210V. 5.3.2 Preferred values of rated current (I.)
The preferred values of rated current (applicable only to RCMs connected in 4.9.2) are: 10, 13, 1ti. 20, 25. 32, 40. 63, 80. 100, 125A. Note: For RCMs classified in 4.9.1, the rated current is limited by the physical size of the external inductor or internal transformer or the RCM itself. 5.3.3 Optimal value of rated residual operating current (I) The rated residual operating current ratio is:
0.006, 0.01, 0.03, 0.1, 0.3, 0.5A. When the RCM head has multiple residual operating current setting values, the rated value refers to the lowest setting value. 5.3.4 Standard value of rated residual non-operating current (I) The standard value of rated residual non-operating current is 0.51 Note: For residual pulsating direct current, the residual non-operating current is related to the current residual angle (see 3.4). 5.3.5 Standard minimum value of non-operating overcurrent when RCCMs of multiple current circuits are connected to multi-phase balanced loads (see 3.4.2.1) When multiple RCMs with the same current path are connected to multi-phase regular loads, the standard minimum value of non-operating overcurrent is 6I. 5.3.6 Standard minimum value of non-operating overcurrent when RCM is connected to a single-phase load (see 3.4.2.2) The standard minimum value of non-operating overcurrent when RCM is connected to a single-phase load is 6I. Note: This clause does not apply to RMs classified in 1.9.1. The minimum value of non-operating overcurrent of RCMs classified in 4.9.1 should take into account their declared rated current (see the note to 5.3.2). Therefore, 1.9. [Classification of residual operating current can be set to the corresponding minimum value of each current transformer. 5.3.7 Rated frequency preferred value
The rated frequency preferred value is 50H//or 6H7. If other frequency values are used, the rated frequency should be marked on the device and the test should be carried out at this frequency. 5.3.8 Standard and preferred values of limiting short-circuit current (Inc) (only applicable to RCM of connection mode 4.9.2) 5.3.8. 310 000 4 and below
The rated limiting short-circuit current 1 value of 1000A and below is the standard value, the standard value is: 3000A, 4500A, 6400A. 10 000 A.
The corresponding power factor is specified in Table 13.
5.3.8.2 Values greater than 10000A
Values greater than 10000A~25000A (including 25000A). The preferred value is 20000A. The corresponding power factor is specified in Table 73
This standard does not consider values greater than 25°C00A. 5.3.9 Maximum driving time (1)
The driving time when the residual current is equal to or greater than 1 should not exceed 10s. 5.3.1 Minimum value of internal impedance of RCM with direction discrimination function At rated frequency, the internal impedance between the power terminal and the FE terminal should not be less than 10M. 5.4 Coordination with short-circuit protective devices (SCPD) (applicable only to RCMs connected in accordance with 4.9.2) 5.4.1 Overview
GB 19214—2003/1EC 62020: 1998 According to the installation rules of IFC60364, RCMs shall be short-circuit protected by circuit breakers or fuses conforming to the relevant standards. Under the general conditions of 9.11.2.1, the coordination of the RCM and the SCPD shall be verified by the test specified in 9.11.2.2 to verify that the RCM provides adequate protection for short-circuit currents up to and including the limiting short-circuit current I and the limiting residual short-circuit current I. 5.4.2 Rated conditional short-circuit current (1)
The effective value of the expected current that a RCM protected by a SCPD can withstand under specified conditions without impairing its function, as specified by the manufacturer.
For specified conditions, see 9.11.2, 2a).
5.4.3 Rated conditional residual short-circuit current (I) The value of the prospective residual current that a RCM protected by a SCPE) can withstand under specified conditions without changes that impair its function, as specified by the manufacturer.
For specified conditions, see 5,11.2.2b).
6 Marking and other product data
Each RCM shall be marked in a permanent manner with all or part of the following data (for small products). Manufacturer's name or trademark;
) Model, registration number or serial number;
Rated current;
Rated frequency, if the design frequency of the RCM is not 50 Hz and/or 60 H2 (see 5.3.7); e
Rated current;
Rated residual operating current:
Residual operating current setting value (when the RCM has several residual operating current setting values): h)
Protection level (only when it is not I20)
i) Position of use (when necessary) (symbols are in accordance with GB/T7676); j) Operating parts of the test device, represented by the letter D: k) Wiring diagram:
1) The operating characteristics when the residual hazardous current contains a non-conductive component are represented by the symbol:. ) "Installation symbols for which the sound signal can be turned off:) Installation instructions, including identification of current sensors that can be used for R(M):) RM currency symbols with direction discrimination. Transmission components, such as alarm devices for H, should be marked according to the requirements of a), b), c), d) and m) (when applicable). For small RCMs, if it is not possible to mark all the above data in the place where it is used, at least the contents of items e), ),> and m) should be marked and visible during installation j). The data of items a), b), c>, i), k) and a) can be marked on the side or back of the RCM and can be seen before installation. In addition, the content of item k) can be marked on one side of any cover that must be opened when connecting the power cord. Any other data not marked should be given in the manufacturing sample.
The manufacturer shall give one or more appropriate SCPDs in its samples and in the instructions provided with the RCM that meets the connection method of 1.9.2. For reference.
Red should not be used for the test button of the RLM, nor for setting the setting (if any). If the power supply and load terminals must be distinguished, they should be clearly marked (for example, with "power supply" and "load" near the terminals or with arrows indicating the direction of current flow). The terminals on the RLM used to connect the current sensor should have obvious identification marks. The terminal specially used for hand connection of the neutral line should be indicated by the letter N.2 Rated current (I,)
The current value that the RCM can carry under uninterrupted operation as specified by the manufacturer, applicable to RCMs with connection mode 1.9,2. 5.2.3 Rated residual operating current (1)
The residual operating current specified by the manufacturer for the RCM (see 3.2.4), at which the RCM should operate under specified conditions. Note: For RCMs with several residual operating current setting values, the rated residual operating current is marked with the maximum setting value. 5.2.4 Rated residual non-operating current (Im) The residual non-operating current value specified by the manufacturer for the RCM (see 3.2.5), at which the RCM will not operate under specified conditions.
5.2.5 Rated frequency
The power supply frequency specified for the RCM and other characteristic values corresponding to it. Note: Several rated loads may be specified for the same RCM. 5.2.6 Operating characteristics when residual current has a DC component RCM that ensures operation for a suddenly applied or slowly rising residual positive alternating current and residual pulsating DC current. Note: This operating characteristic corresponds to type A in GB16916.1. 5.2. Insulation coordination including electrical clearances and creepage distances is under consideration.
Note: Before, electrical clearances and creepage distances are in accordance with 8.1.3. 5.3 Standard values and preferred values
5.3.1 Rated voltage preferred value (U,)
GB 19214-2003/IC 62020:1998 According to IEC60038. Voltage values 230V and 400V have been standardized, and these voltage values should gradually replace 220V and 240V and 38uV and 415V respectively.
In this standard, whenever 230V and 400V are mentioned, they can be regarded as 220V or 240V, 380V or 415V respectively. For single-phase three-wire systems, the standardized voltage is 120/210V. 5.3.2 Preferred values of rated current (I.)
The preferred values of rated current (applicable only to RCMs connected in 4.9.2) are: 10, 13, 1ti. 20, 25. 32, 40. 63, 80. 100, 125A. Note: For RCMs classified in 4.9.1, the rated current is limited by the physical size of the external inductor or internal transformer or the RCM itself. 5.3.3 Optimal value of rated residual operating current (I) The rated residual operating current ratio is:
0.006, 0.01, 0.03, 0.1, 0.3, 0.5A. When the RCM head has multiple residual operating current setting values, the rated value refers to the lowest setting value. 5.3.4 Standard value of rated residual non-operating current (I) The standard value of rated residual non-operating current is 0.51 Note: For residual pulsating direct current, the residual non-operating current is related to the current residual angle (see 3.4). 5.3.5 Standard minimum value of non-operating overcurrent when RCCMs of multiple current circuits are connected to multi-phase balanced loads (see 3.4.2.1) When multiple RCMs with the same current path are connected to multi-phase regular loads, the standard minimum value of non-operating overcurrent is 6I. 5.3.6 Standard minimum value of non-operating overcurrent when RCM is connected to a single-phase load (see 3.4.2.2) The standard minimum value of non-operating overcurrent when RCM is connected to a single-phase load is 6I. Note: This clause does not apply to RMs classified in 1.9.1. The minimum value of non-operating overcurrent of RCMs classified in 4.9.1 should take into account their declared rated current (see the note to 5.3.2). Therefore, 1.9. [Classification of residual operating current can be set to the corresponding minimum value of each current transformer. 5.3.7 Rated frequency preferred value
The rated frequency preferred value is 50H//or 6H7. If other frequency values are used, the rated frequency should be marked on the device and the test should be carried out at this frequency. 5.3.8 Standard and preferred values of limiting short-circuit current (Inc) (only applicable to RCM of connection mode 4.9.2) 5.3.8. 310 000 4 and below
The rated limiting short-circuit current 1 value of 1000A and below is the standard value, the standard value is: 3000A, 4500A, 6400A. 10 000 A.
The corresponding power factor is specified in Table 13.
5.3.8.2 Values greater than 10000A
Values greater than 10000A~25000A (including 25000A). The preferred value is 20000A. The corresponding power factor is specified in Table 73
This standard does not consider values greater than 25°C00A. 5.3.9 Maximum driving time (1)
The driving time when the residual current is equal to or greater than 1 should not exceed 10s. 5.3.1 Minimum value of internal impedance of RCM with direction discrimination function At rated frequency, the internal impedance between the power terminal and the FE terminal should not be less than 10M. 5.4 Coordination with short-circuit protective devices (SCPD) (applicable only to RCMs connected in accordance with 4.9.2) 5.4.1 Overview
GB 19214—2003/1EC 62020: 1998 According to the installation rules of IFC60364, RCMs shall be short-circuit protected by circuit breakers or fuses conforming to the relevant standards. Under the general conditions of 9.11.2.1, the coordination of the RCM and the SCPD shall be verified by the test specified in 9.11.2.2 to verify that the RCM provides adequate protection for short-circuit currents up to and including the limiting short-circuit current I and the limiting residual short-circuit current I. 5.4.2 Rated conditional short-circuit current (1)
The effective value of the expected current that a RCM protected by a SCPD can withstand under specified conditions without impairing its function, as specified by the manufacturer.
For specified conditions, see 9.11.2, 2a).
5.4.3 Rated conditional residual short-circuit current (I) The value of the prospective residual current that a RCM protected by a SCPE) can withstand under specified conditions without changes that impair its function, as specified by the manufacturer.
For specified conditions, see 5,11.2.2b).
6 Marking and other product data
Each RCM shall be marked in a permanent manner with all or part of the following data (for small products). Manufacturer's name or trademark;
) Model, registration number or serial number;
Rated current;
Rated frequency, if the design frequency of the RCM is not 50 Hz and/or 60 H2 (see 5.3.7); e
Rated current;
Rated residual operating current:
Residual operating current setting value (when the RCM has several residual operating current setting values): h)
Protection level (only when it is not I20)
i) Position of use (when necessary) (symbols are in accordance with GB/T7676); j) Operating parts of the test device, represented by the letter D: k) Wiring diagram:
1) The operating characteristics when the residual hazardous current contains a non-conductive component are represented by the symbol:. ) "Installation symbols for which the sound signal can be turned off:) Installation instructions, including identification of current sensors that can be used for R(M):) RM currency symbols with direction discrimination. Transmission components, such as alarm devices for H, should be marked according to the requirements of a), b), c), d) and m) (when applicable). For small RCMs, if it is not possible to mark all the above data in the place where it is used, at least the contents of items e), ),> and m) should be marked and visible during installation j). The data of items a), b), c>, i), k) and a) can be marked on the side or back of the RCM and can be seen before installation. In addition, the content of item k) can be marked on one side of any cover that must be opened when connecting the power cord. Any other data not marked should be given in the manufacturing sample.
The manufacturer shall give one or more appropriate SCPDs in its samples and in the instructions provided with the RCM that meets the connection method of 1.9.2. For reference.
Red should not be used for the test button of the RLM, nor for setting the setting (if any). If the power supply and load terminals must be distinguished, they should be clearly marked (for example, with "power supply" and "load" near the terminals or with arrows indicating the direction of current flow). The terminals on the RLM used to connect the current sensor should have obvious identification marks. The terminal specially used for hand connection of the neutral line should be indicated by the letter N.4 Rated residual non-operating current (Im) The residual non-operating current value specified by the manufacturer for the RCM (see 3.2.5), at which the RCM does not operate under specified conditions.
5.2.5 Rated frequency
The power supply frequency specified for the RCM and other characteristic values corresponding to it. Note: Several rated frequencies may be specified for the same RCM. 5.2.6 Operating characteristics when residual current has a DC component An RCM that ensures operation for a suddenly applied or slowly rising residual positive alternating current and a residual pulsating DC current. Note: This operating characteristic corresponds to Type A in GB16916.1. 5.2. Insulation coordination includes the electrical clearances and creepage distances being considered.
Note: Before, electrical clearances and creepage distances are in accordance with 8.1.3. 5.3 Standard values and preferred values
5.3.1 Optimal values of rated voltage (U1)
GB 19214—2003/IC 62020:1998 According to IEC60038, the voltage values 230V and 400V have been standardized, and these voltage values should gradually replace 220V and 240V, as well as 380V and 415V.
In this standard, whenever 230V and 400V are mentioned, they can be regarded as 220V or 240V, 380V or 415V respectively. For single-phase three-wire systems, the standardized voltage is 120/210V. 5.3.2 Preferred values of rated current (I.)
Preferred values of rated current (applicable only to RCMs with connection mode 4.9.2): 10, 13, 1ti. 20, 25. 32, 40. 63, 80. 100, 125 A. Note: For RCMs classified in 4.9.1, the rated current is limited by the physical size of the external sensor or internal transformer or the RCM itself. 5.3.3 Preferred values of rated residual operating current (I.) The rated residual operating current is:
0. 006, 0.01, 0. 03, 0. 1. 0.3, 0. 5 A. When the RCM head has multiple residual operating current setting values, the rated value refers to the lowest setting value. 5.3.4 Standard value of rated residual non-operating current (I) The standard value of rated residual non-operating current is 0.51 Note: For residual pulsating direct current, the residual non-operating current is related to the current residual angle (see 3.4). 5.3.5 Standard minimum value of non-operating overcurrent when RCCMs of multiple current circuits are connected to multi-phase balanced loads (see 3.4.2.1) When multiple RCMs with the same current path are connected to multi-phase regular loads, the standard minimum value of non-operating overcurrent is 6I. 5.3.6 Standard minimum value of non-operating overcurrent when RCM is connected to a single-phase load (see 3.4.2.2) The standard minimum value of non-operating overcurrent when RCM is connected to a single-phase load is 6I. Note: This clause does not apply to RMs classified in 1.9.1. The minimum value of non-operating overcurrent of RCMs classified in 4.9.1 should take into account their declared rated current (see the note to 5.3.2). Therefore, 1.9. [Classification of residual operating current can be set to the corresponding minimum value of each current transformer. 5.3.7 Rated frequency preferred value
The rated frequency preferred value is 50H//or 6H7. If other frequency values are used, the rated frequency should be marked on the device and the test should be carried out at this frequency. 5.3.8 Standard and preferred values of limiting short-circuit current (Inc) (only applicable to RCM of connection mode 4.9.2) 5.3.8. 310 000 4 and below
The rated limiting short-circuit current 1 value of 1000A and below is the standard value, the standard value is: 3000A, 4500A, 6400A. 10 000 A.
The corresponding power factor is specified in Table 13.
5.3.8.2 Values greater than 10000A
Values greater than 10000A~25000A (including 25000A). The preferred value is 20000A. The corresponding power factor is specified in Table 73
This standard does not consider values greater than 25°C00A. 5.3.9 Maximum driving time (1)
The driving time when the residual current is equal to or greater than 1 should not exceed 10s. 5.3.1 Minimum value of internal impedance of RCM with direction discrimination function At rated frequency, the internal impedance between the power terminal and the FE terminal should not be less than 10M. 5.4 Coordination with short-circuit protective devices (SCPD) (applicable only to RCMs connected in accordance with 4.9.2) 5.4.1 Overview
GB 19214—2003/1EC 62020: 1998 According to the installation rules of IFC60364, RCMs shall be short-circuit protected by circuit breakers or fuses conforming to the relevant standards. Under the general conditions of 9.11.2.1, the coordination of the RCM and the SCPD shall be verified by the test specified in 9.11.2.2 to verify that the RCM provides adequate protection for short-circuit currents up to and including the limiting short-circuit current I and the limiting residual short-circuit current I. 5.4.2 Rated conditional short-circuit current (1)
The effective value of the expected current that a RCM protected by a SCPD can withstand under specified conditions without impairing its function, as specified by the manufacturer.
For specified conditions, see 9.11.2, 2a).
5.4.3 Rated conditional residual short-circuit current (I) The value of the prospective residual current that a RCM protected by a SCPE) can withstand under specified conditions without changes that impair its function, as specified by the manufacturer.
For specified conditions, see 5,11.2.2b).
6 Marking and other product data
Each RCM shall be marked in a permanent manner with all or part of the following data (for small products). Manufacturer's name or trademark;
) Model, registration number or serial number;
Rated current;
Rated frequency, if the design frequency of the RCM is not 50 Hz and/or 60 H2 (see 5.3.7); e
Rated current;
Rated residual operating current:
Residual operating current setting value (when the RCM has several residual operating current setting values): h)
Protection level (only when it is not I20)
i) Position of use (when necessary) (symbols are in accordance with GB/T7676); j) Operating parts of the test device, represented by the letter D: k) Wiring diagram:
1) The operating characteristics when the residual hazardous current contains a non-conductive component are represented by the symbol:. ) "Installation symbols for which the sound signal can be turned off:) Installation instructions, including identification of current sensors that can be used for R(M):) RM currency symbols with direction discrimination. Transmission components, such as alarm devices for H, should be marked according to the requirements of a), b), c), d) and m) (when applicable). For small RCMs, if it is not possible to mark all the above data in the place where it is used, at least the contents of items e), ),> and m) should be marked and visible during installation j). The data of items a), b), c>, i), k) and a) can be marked on the side or back of the RCM and can be seen before installation. In addition, the content of item k) can be marked on one side of any cover that must be opened when connecting the power cord. Any other data not marked should be given in the manufacturing sample.
The manufacturer shall give one or more appropriate SCPDs in its samples and in the instructions provided with the RCM that meets the connection method of 1.9.2. For reference.
Red should not be used for the test button of the RLM, nor for setting the setting (if any). If the power supply and load terminals must be distinguished, they should be clearly marked (for example, with "power supply" and "load" near the terminals or with arrows indicating the direction of current flow). The terminals on the RLM used to connect the current sensor should have obvious identification marks. The terminal specially used for hand connection of the neutral line should be indicated by the letter N.4 Rated residual non-operating current (Im) The residual non-operating current value specified by the manufacturer for the RCM (see 3.2.5), at which the RCM does not operate under specified conditions.
5.2.5 Rated frequency
The power supply frequency specified for the RCM and other characteristic values corresponding to it. Note: Several rated frequencies may be specified for the same RCM. 5.2.6 Operating characteristics when residual current has a DC component An RCM that ensures operation for a suddenly applied or slowly rising residual positive alternating current and a residual pulsating DC current. Note: This operating characteristic corresponds to Type A in GB16916.1. 5.2. Insulation coordination includes the electrical clearances and creepage distances being considered.
Note: Before, electrical clearances and creepage distances are in accordance with 8.1.3. 5.3 Standard values and preferred values
5.3.1 Optimal values of rated voltage (U1)
GB 19214—2003/IC 62020:1998 According to IEC60038, the voltage values 230V and 400V have been standardized, and these voltage values should gradually replace 220V and 240V, as well as 380V and 415V.
In this standard, whenever 230V and 400V are mentioned, they can be regarded as 220V or 240V, 380V or 415V respectively. For single-phase three-wire systems, the standardized voltage is 120/210V. 5.3.2 Preferred values of rated current (I.)
Preferred values of rated current (applicable only to RCMs with connection mode 4.9.2): 10, 13, 1ti. 20, 25. 32, 40. 63, 80. 100, 125 A. Note: For RCMs classified in 4.9.1, the rated current is limited by the physical size of the external sensor or internal transformer or the RCM itself. 5.3.3 Preferred values of rated residual operating current (I.) The rated residual operating current is:
0. 006, 0.01, 0. 03, 0. 1. 0.3, 0. 5 A. When the RCM head has multiple residual operating current setting values, the rated value refers to the lowest setting value. 5.3.4 Standard value of rated residual non-operating current (I) The standard value of rated residual non-operating current is 0.51 Note: For residual pulsating direct current, the residual non-operating current is related to the current residual angle (see 3.4). 5.3.5 Standard minimum value of non-operating overcurrent when RCCMs of multiple current circuits are connected to multi-phase balanced loads (see 3.4.2.1) When multiple RCMs with the same current path are connected to multi-phase regular loads, the standard minimum value of non-operating overcurrent is 6I. 5.3.6 Standard minimum value of non-operating overcurrent when RCM is connected to a single-phase load (see 3.4.2.2) The standard minimum value of non-operating overcurrent when RCM is connected to a single-phase load is 6I. Note: This clause does not apply to RMs classified in 1.9.1. The minimum value of non-operating overcurrent of RCMs classified in 4.9.1 should take into account their declared rated current (see the note to 5.3.2). Therefore, 1.9. [Classification of residual operating current can be set to the corresponding minimum value of each current transformer. 5.3.7 Rated frequency preferred value
The rated frequency preferred value is 50H//or 6H7. If other frequency values are used, the rated frequency should be marked on the device and the test should be carried out at this frequency. 5.3.8 Standard and preferred values of limiting short-circuit current (Inc) (only applicable to RCM of connection mode 4.9.2) 5.3.8. 310 000 4 and below
The rated limiting short-circuit current 1 value of 1000A and below is the standard value, the standard value is: 3000A, 4500A, 6400A. 10 000 A.
The corresponding power factor is specified in Table 13.
5.3.8.2 Values greater than 10000A
Values greater than 10000A~25000A (including 25000A). The preferred value is 20000A. The corresponding power factor is specified in Table 73
This standard does not consider values greater than 25°C00A. 5.3.9 Maximum driving time (1)
The driving time when the residual current is equal to or greater than 1 should not exceed 10s. 5.3.1 Minimum value of internal impedance of RCM with direction discrimination function At rated frequency, the internal impedance between the power terminal and the FE terminal should not be less than 10M. 5.4 Coordination with short-circuit protective devices (SCPD) (applicable only to RCMs connected in accordance with 4.9.2) 5.4.1 Overview
GB 19214—2003/1EC 62020: 1998 According to the installation rules of IFC60364, RCMs shall be short-circuit protected by circuit breakers or fuses conforming to the relevant standards. Under the general conditions of 9.11.2.1, the coordination of the RCM and the SCPD shall be verified by the test specified in 9.11.2.2 to verify that the RCM provides adequate protection for short-circuit currents up to and including the limiting short-circuit current I and the limiting residual short-circuit current I. 5.4.2 Rated conditional short-circuit current (1)
The effective value of the expected current that a RCM protected by a SCPD can withstand under specified conditions without impairing its function, as specified by the manufacturer.
For specified conditions, see 9.11.2, 2a).
5.4.3 Rated conditional residual short-circuit current (I) The value of the prospective residual current that a RCM protected by a SCPE) can withstand under specified conditions without changes that impair its function, as specified by the manufacturer.
For specified conditions, see 5,11.2.2b).
6 Marking and other product data
Each RCM shall be marked in a permanent manner with all or part of the following data (for small products). Manufacturer's name or trademark;
) Model, registration number or serial number;
Rated current;
Rated frequency, if the design frequency of the RCM is not 50 Hz and/or 60 H2 (see 5.3.7); e
Rated current;
Rated residual operating current:
Residual operating current setting value (when the RCM has several residual operating current setting values): h)
Protection level (only when it is not I20)
i) Position of use (when necessary) (symbols are in accordance with GB/T7676); j) Operating parts of the test device, represented by the letter D: k) Wiring diagram:
1) The operating characteristics when the residual hazardous current contains a non-conductive component are represented by the symbol:. ) "Installation symbols for which the sound signal can be turned off:) Installation instructions, including identification of current sensors that can be used for R(M):) RM currency symbols with direction discrimination. Transmission components, such as alarm devices for H, should be marked according to the requirements of a), b), c), d) and m) (when applicable). For small RCMs, if it is not possible to mark all the above data in the place where it is used, at least the contents of items e), ),> and m) should be marked and visible during installation j). The data of items a), b), c>, i), k) and a) can be marked on the side or back of the RCM and can be seen before installation. In addition, the content of item k) can be marked on one side of any cover that must be opened when connecting the power cord. Any other data not marked should be given in the manufacturing sample.
The manufacturer shall give one or more appropriate SCPDs in its samples and in the instructions provided with the RCM that meets the connection method of 1.9.2. For reference.
Red should not be used for the test button of the RLM, nor for setting the setting (if any). If the power supply and load terminals must be distinguished, they should be clearly marked (for example, with "power supply" and "load" near the terminals or with arrows indicating the direction of current flow). The terminals on the RLM used to connect the current sensor should have obvious identification marks. The terminal specially used for hand connection of the neutral line should be indicated by the letter N.Voltage values of 230 V and 400 V have been standardized and these voltage values should gradually replace 220 V and 240 V, and 380 V and 415 V, respectively.
In this standard, whenever 230 V and 400 V are mentioned, they can be regarded as 220 V or 240 V, 380 V or 415 V, respectively. For single-phase three-wire systems, the standardized voltage is 120/210 V. 5.3.2 Preferred values of rated current (I.)
The preferred values of rated current (applicable only to RCMs connected in 4.9. 2) are: 10, 13, 1, 20, 25, 32, 40, 63, 80, 100, 125 A. Note: For RCMs classified in 4.9.1, the rated current is limited by the physical size of the external inductor or internal transformer or the RCM itself. 5.3.3 Optimal value of rated residual operating current (I) The rated residual operating current ratio is:
0.006, 0.01, 0.03, 0.1, 0.3, 0.5A. When the RCM head has multiple residual operating current setting values, the rated value refers to the lowest setting value. 5.3.4 Standard value of rated residual non-operating current (I) The standard value of rated residual non-operating current is 0.51 Note: For residual pulsating direct curre
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