Detail of NB/T 42077-2016

Introduction of NB/T 42077-2016

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard is modified in relation to International Electrotechnical Commission IEC 62752 In-cable Control and Protection Device for Mode 2 Charging of Electric Road Vehicles (IC-CPD) (Edition 1). The following technical changes have been made with respect to IEC 62752: ——Types and dimensions of plugs and socket-outlets shall meet the requirements of GB 2099.1 and GB 1002. ——Types and dimensions of vehicle connectors meet the requirements of national standards GB/T 20234.1 and GB/T 20234.2. ——Terms, types of residual current devices (RCD) adopted and the plugs for industrial use is consistent with those in GB/T 18487.1. ——Notes and types, e.g. classification, requirements and test methods of LLSE, which are applicable to other countries other than China, are deleted. ——Three-phase product type of IC-CPD, e.g. classification, requirements and test methods of LLLNSE, are deleted. This standard was proposed by China Electrical Equipment Industry Association. This standard is under the jurisdiction of National Technical Committee on Low-voltage Apparatus of Standardization Administration of China (SAC/TC 189). This standard is released for the first time. Introduction For mode 2 charging including the situation where it cannot be guaranteed that the installation is equipped with RCDs, for example charging the electric vehicle at an unknown installation, a dedicated protection is used for the connected electric vehicle. This standard describes the relevant requirements for an in-cable control and protection device (IC-CPD) to be used for mode 2 charging, aiming at safely and reliably connecting the electric vehicle to the power supply system. Mode 2 charging for electric vehicle is defined as follows: when the electric vehicle is connected to a.c. network (power supply), plugs and socket-outlets complying with GB 2099.1 and GB 1002 are used on the power supply side; lines, neutrals and earthing protection conductors are used on the power supply side; in-cable control and protection device (IC-CPD) is used for charging connection. For all charging modes, protection against electric shock in case of failure of basic protection and/or fault protection is provided, at least by a type A RCD (see IEC 60364-7-722 and GB/T 18487.1). The IC-CPD is not a protection device for use in fixed installations. In-cable Control and Protective Device for Mode 2 Charging of Electric Road Vehicles (IC-CPD) 1 Scope This standard applies to in-cable control and protection devices for mode 2 charging of electric road vehicles, hereafter referred to as IC-CPD, including control and safety functions. This standard applies to portable devices performing simultaneously the functions of detection of the residual current, of comparison of the value of this current with the residual operating value and of opening of the protected circuit when the residual current exceeds this value. The IC-CPD according to this standard shall: ——has a control pilot function controller in accordance with GB/T 18487.1-2015; ——checks supply conditions and prevents charging in case of supply faults under specified conditions; ——may have a switched protective conductor. These IC-CPDs are intended for use in TN-, and TT-systems. The use of IC-CPDs in IT systems may be limited. Residual currents with frequencies different from the rated frequency, d.c. residual currents and specific environmental situation are considered. This standard is applicable to IC-CPDs performing the safety and control functions as required in GB/T 18487.1-2015 for mode 2 charging of electric vehicles. This standard is applicable to IC-CPDs with single-phase circuits not exceeding 250V and maximum rated current not exceeding 16A. This standard is applicable to IC-CPDs to be used in a.c. circuits only, with preferred values of rated frequency 50Hz, 60Hz or 50/60Hz. IC-CPDs according to this standard are not intended to be used to supply electric energy towards the connected grid. This standard is applicable to IC-CPDs having a rated residual operating current not exceeding 30mA and is intended to provide additional protection for the circuit downstream of the IC-CPD in situations where it cannot be guaranteed that the installation is equipped with an RCD with IΔn≤30mA. The IC-CPD consists of: ——a plug for connection to a socket-outlet in the fixed installation; ——one or more subassemblies containing the control and protection features; ——a cable between the plug and the subassemblies (optional); ——a cable between the subassemblies and the vehicle connector (optional); ——a vehicle connector for connection to the electric vehicle. GB 2099.1-2008 is applicable to plugs for household and similar use. Power supply plugs, vehicle connectors and cables which are part of the IC-CPD are not tested according to this standard. These parts are tested separately according to their specific product standards. The switching contacts of the IC-CPD are not required to provide isolation, as isolation can be ensured by disconnecting the plug. The IC-CPD may have a non-replaceable integral fuse in the line(s) and/or neutral current path. 2 Normative References The following documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 1043 Plastics - Determination of Charpy Impact Properties (ISO 179) GB/T 1043.1-2008 Plastics - Determination of Charpy Impact Properties- Part 1: Non-instrumented Impact Test (ISO 179-1:2000, IDT) GB 2099.1-2008 Plugs and Socket-outlets for Household and Similar Purposes - Part 1: General Requirements (IEC 60884-1:2002, MOD) GB/T 2423.1-2008 Environmental Testing - Part 2: Test methods - Tests A: Cold (IEC 60068-2-1:2007, IDT) GB/T 2423.4-2008 Environmental Testing for Electric and Electronic Products - Part 2: Test Method - Test Db: Damp Heat, Cyclic (12h+12h Cycle) (IEC 60068-2-30:2005, IDT) GB/T 2423.5-1995 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test Ea and Guidance: Shock (IEC 60068-2-27:1987, IDT) GB/T 2423.7-1995 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods Test Ec and Guidance: Drop and Topple Primarily for Equipment-type Specimens (IEC 60068-2-31:1982, IDT) GB/T 2423.17-2008 Environmental Testing for Electric and Electronic Products - Part 2: Test Method - Test Ka: Salt Mist (IEC 60068-2-11:1981, IDT) GB/T 2423.24-2013 Environmental Testing - Part 2: Test Methods - Test Sa: Simulated Solar Radiation at Ground Level and Guidance for Solar Radiation Testing (IEC 60068-2-5:2010, IDT) GB/T 2423.56-2006 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test Fh: Vibration, Broad-band Random (Digital Control) and Guidance (IEC 60068-2-64:1993, IDT) GB/T 2424.2-2005 Environmental Testing for Electric and Electronic Products - Guidance for Damp Heat Tests (IEC 60068-3-4:2001, IDT) GB/T 4207-2012 Method for the Determination of the Proof and the Comparative Tracking Indices of Solid Insulating Materials (IEC 60112:2009, IDT) GB 4208-2008 Degrees of Protection Provided by Enclosure (IP Code) (IEC 60529:2001, IDT) GB 4343-2009 Electromagnetic Compatibility - Requirements for Household Appliances Electric Tools and Similar Apparatus (CISPR 14, IDT) GB/T 5023-2008 Polyvinyl Chloride Insulated Cables of Rated Voltages up to and Including 450/750V GB/T 5169.10-2006 Fire Hazard Testing for Electric and Electronic Products - Part 10: Glow/Hot-wire Based Test Methods - Glow-wire Apparatus and Common Test Procedure (IEC 60695-2-10:2000, IDT) GB/T 5169.11-2006 Fire hazard testing for electric and electronic products - Part 11: Glowing/Hot-wire Based Test Methods - Glow-wire Flammability Test Method for End-products (IEC 60695-2-11:2000, IDT) GB/T 5465.2-2008 Graphical Symbols for Use on Electrical Equipment - Part 2: Graphical Symbols (IEC 60417 DB:2007) GB 8898-2011 Audio, Video and Similar Electronic Apparatus - Safety Requirements (IEC 60065:2005, MOD) GB/T 9286-1998 Paints and Varnishes - Cross Cut Test for Films (ISO 2409:1992) GB/T 9341-2008 Plastics - Determination of Flexural Properties (ISO 178:2001, IDT) GB/T 11918.1-2014 Plugs, Socket-outlets and Couplers for Industrial Purposes - Part 1: General Requirements (IEC 60309-1:2012 Ed.4.2, MOD) GB/T 14472-1998 Fixed Capacitors for Use in Electronic Equipment - Part 14: Sectional Specification - Fixed Capacitors for Electromagnetic Interference Suppression and Connection to the Supply Mains (IEC 60384-14:1993, IDT) GB/T 16422.2-2014 Plastics - Methods of Exposure to Laboratory Light Sources - Part 2：Xenon-arc Sources (ISO 4892-2:2013, IDT) GB 16916.1-2014 Residual Current Operated Circuit-breakers without Integral Overcurrent Protection for Household and Similar Uses(RCCB) - Part 1: General Rules (IEC 61008-1:2012, MOD) GB/T 16935.1-2008 Insulation Coordination for Equipment within Low-voltage Systems - Part 1: Principles, Requirements and Tests (IEC 60664-1:2007, IDT) GB/T 16935.3-2005 Insulation Coordination for Equipment within Low-voltage Systems - Part 3: Use of Coating，Potting or Moulding for Protection Against Pollution (IEC 60664-3:2003, IDT) GB/T 18487.1-2015 Electric Vehicle Conductive Charging System - General Requirements GB 18499-2008 Residual Current Operated Protective Devices(RCD) for Household and Similar Use - Electromagnetic Compatibility (IEC 61543:1995, IDT) GB 20044-2012 Electrical Accessories -Portable Residual Current Devices without Integral Overcurrent Protection for Household and Similar Use (PRCDs) (IEC 61540:1999, MOD) GB/T 20234.1-2015 Connection Set of Conductive Charging for Electric Vehicles - Part 1: General Requirements GB/T 20234.2-2015 Connection Set of Conductive Charging for Electric Vehicles - Part 2 AC Charging Coupler GB 22794-2008 Type B Residual Current Operated Circuit-breakers with and without Integral Overcurrent Protection for Household and Similar Uses (Type B RCCBs and Type B RCBOs) (IEC 62423:2009, IDT) GB/T 28046.5-2013 Road Vehicles - Environmental Conditions and Testing for Electrical and Electronic Equipment - Part 3: Mechanical Loads (ISO 16750-5:2010, MOD) GB 29303-2012 Switched Protective Earth Portable Residual Current Devices for Class I and Battery Powered Vehicle Applications (IEC 62335:2008, MOD) GB/T 30789.3-2014 Paints and Varnishes - Evaluation of Degradation of Coatings - Designation of Quantity and Size of Defects and of Intensity of Uniform Changes in Appearance - Part 3: Assessment of Degree of Rusting (ISO 4628-3:2003, IDT) IEC 60999-1 Connecting devices - Electrical Copper Conductors - Safety Requirements for Screw-type and Screwless-type Clamping Units - Part 1: General Requirements and Particular Requirements for Clamping Units for Conductors from 0.2mm2 Up to 35mm2 (Included) IEC 61249-2 (All Parts) Materials for Printed Boards and Other Interconnecting Structures ISO 17409:2015 Electrically Propelled Road Vehicles - Connection to An External Electric Power Supply - Safety Requirements 3 Terms and Definitions For the purposes of this standard, the following terms and definitions apply. Notes: 1 Where the terms "voltage" and "current" are used, they imply r.m.s. values, unless otherwise specified. 2 Throughout this standard, the word "earthing" is used for "protective earthing". 3 The term "accessory" is used as a general term covering plugs, socket-outlets, vehicle connectors and vehicle couplers. 3.1 Terms and definitions relating to plugs and socket-outlets 3.1.1 plug accessory having pins designed to engage with the contacts of a socket-outlet, also incorporating means for the electrical connection and mechanical retention of one flexible cable [Source: GB 2099.1-2008, 3.1] 3.1.2 socket-outlet accessory having socket contacts designed to engage with the pins of a plug and having terminals for the connection of flexible cable [Source: GB 2099.1-2008, 3.2] 3.1.3 non-rewirable plug non-rewirable vehicle connector accessory so constructed that it forms a complete unit with the flexible cable after connection and assembly by the manufacturer of the accessory [Source: GB 2099.1-2008, 14.1] 3.1.4 rewirable accessory by manufacturer accessory so constructed that the flexible cable can be replaced Note: the accessory is so constructed that it can only be rewired, repaired or replaced by the manufacturer’s authorized personnel, its agent or similar qualified person. 3.1.5 vehicle coupler means enabling the connection at will of a cable to an electric vehicle, which consists of two parts: a vehicle connector and a vehicle inlet. It corresponds to the term appliance coupler in GB/T 11918.1-2014. [Source: GB/T 20234.1-2015] 3.1.6 vehicle connector part of a vehicle coupler integral with, or intended to be attached to, one cable. It corresponds to the term connector in GB/T 11918.1-2014. [Source: GB/T 20234.1-2015] 3.1.7 vehicle inlet part of a vehicle coupler incorporated in, or fixed to, the electric vehicle, which is connected with the on-board charger or on-board power battery via cable. It corresponds to the term appliance inlet in GB/T 11918.1-2014. [Source: GB/T 20234.1-2015] 3.1.8 pluggable electrical connection which is intended to be plugged or unplugged by the end-user 3.1.9 portable equipment cable and plug connected equipment, cable assembly, adaptors or other accessories that are capable to be carried by one person and may be carried within the EV 3.1.10 adaptor portable accessory constructed as an integral unit incorporating both a plug portion and one socket-outlet portion 3.2 Terms and definitions relating to terminals 3.21 clamping unit part(s) of the terminal necessary for the mechanical clamping and the electrical connection of the conductor(s), including the parts which are necessary to ensure the correct contact pressure [Source: IEC 60999:1999, 3.1] 3.2.2 terminal conductive part of one pole, composed of one or more clamping unit(s) and insulation if necessary [Source: IEC 60999:1999, 3.2] 3.2.3 termination conductive part of a device, provided for reusable electrical connection to external circuits 3.2.4 screw-type terminal terminal for the connection and subsequent disconnection of a conductor or for the interconnection of two or more conductors capable of being dismantled, the connection being made, directly or indirectly, by means of screws or nuts of any kind 3.25 screw terminal screw-type terminal in which the conductor is clamped under the head of the screw at which the clamping pressure may be applied directly by the head of the screw or through an intermediate part, such as a washer, clamping plate or anti-spread device 3.2.6 screwless terminal connecting terminal for the connection and subsequent disconnection of one conductor or the dismountable interconnection of two or more conductors capable of being dismantled, the connection being made, directly or indirectly, by means of springs, wedges, eccentrics or cones, etc., without special preparation of the conductor other than removal of insulation [Source: GB 16916.1-2014, 3.6.8] 3.3 Terms and definitions relating to residual current functions 3.3.1 Terms and definitions relating to currents flowing from live parts to earth 3.3.1.1 earth fault current current flowing to earth due to an insulation fault [Source: GB 16916.1-2014, 3.1.1] 3.3.1.2 earth leakage current current flowing from the live parts of the installation to earth in the absence of an insulation fault [Source: GB 16916.1-2014, 3.1.2] 3.3.1.3 pulsating direct current current of pulsating waveform which assumes, in each period of the rated power frequency, the value 0 or a value not exceeding 6mA d.c. during one single interval of time, expressed in angular measure, of at least 150° [Source: GB 16916.1-2014, 3.1.3] 3.3.1.4 current delay angle α time, expressed in angular measure, by which the starting instant of current conduction is delayed by phase control [Source: GB 16916.1-2014, 3.1.4] 3.3.1.5 supply failure ——open neutral; ——open line(s). Note: see 3.3.3.14 for hazardous live protective conductor. [Source: GB 29303-2012, 3.2.1.6; modified - "open protective earth" has been deleted.] 3.3.1.6 smooth direct current direct current which is ripple free [Source: GB 22794-2008, 3.1] 3.3.1.7 composite current current which consists of more than one significant sinusoidal frequency 3.3.2 Terms and definitions relating to the energization of the residual current function 3.3.2.1 residual current (IΔ) vector sum of the instantaneous values of the current flowing in the main circuit of the residual current function (expressed as r.m.s. value) [Source: GB 16916.1-2014, 3.2.3 (modified)] 3.3.2.2 residual operating current value of residual current which causes the residual current function to operate under specified conditions [Source: GB 16916.1-2014, 3.2.4] 3.3.2.3 residual non-operating current value of residual current at and below which the residual current function does not operate under specified conditions [Source: GB 16916.1-2014, 3.2.5] 3.3.3 Terms and definitions relating to the operation and to the functions of the IC-CPD 3.3.3.1 residual current function function incorporating the means of detection of a residual current, of comparison of its value to the residual current operating value and of opening the protected circuit when the residual current exceeds this value 3.3.3.2 IC-CPD in-cable control and protection device assembly of linked parts or components including function box, cable, plug and vehicle connector for supplying electric vehicles in charging mode 2, which performs control functions and safety functions Note: see Figure 27 for application of IC-CPD, Annex E for all parts and their function examples of IC-CPD, while Annex F for type of IC-CPD. 3.3.3.3 switching device device designed to make or break the current in one or more electric circuits [Source: GB 16916.1-2014, 3.3.6] 3.3.3.4 break-time time which elapses between the instant when the residual operating current is suddenly attained and the instant of arc extinction in all poles of an IC-CPD 3.3.3.5 closed position position in which the predetermined continuity of the main circuit of the IC-CPD is secured [Source: GB 16916.1-2014, 3.3.12; modified - "RCCB" has been replaced by "IC-CPD".] 3.3.3.6 open position position in which the predetermined clearance between open contacts in the main circuit of the IC-CPD is secured [Source: GB 16916.1-2014, 3.3.13; modified - replacement of "RCCB" by "IC-CPD".] 3.3.3.7 pole part of an IC-CPD associated exclusively with one electrically separated conducting path of its main circuit provided with contacts intended to connect and disconnect the main circuit itself and excluding those portions which provide means for mounting and operating the poles together [Source: GB 16916.1-2014, 3.3.14; modified - replacement of "RCCB" by "IC-CPD".] 3.3.3.8 main circuit all conductive parts of an IC-CPD included in the current paths 3.3.3.9 control circuit all the conductive parts (other than a path of the main circuit) of a switching device which are included in a circuit used for the closing operation or the opening operation, or both, of the device with links to IC-CPD, control pilot function controller and switching device Note: see Figure E.1. Circuit used for closing and/or opening operation of RCCB in a circuit (other than a path of the main circuit). 3.3.3.10 test device device incorporated in the IC-CPD simulating the residual current conditions for the operation of the IC-CPD under specified conditions 3.3.3.11 IC-CPD type LNSE device with a switched protective conductor that is used on a line (phase) to neutral supply (L, N, PE) Note: see Annex D for examples. 3.3.3.12 IC-CPD type LNE device with a non-switched protective conductor that is used on a line (phase) to neutral supply (L, N, PE) 3.3.3.13 Protective conductor PE (identification) conductor provided for purposes of safety, for example protection against electric shock [Source: IEV 195-02-09:1998] 3.3.3.14 hazardous live protective conductor miswiring or fault condition where the protective contact of the socked outlet is live Note: see 3.3.1.5 for supply failure. 3.3.3.15 control pilot function controller function controller which generates a PWM-signal and detects a charging state Note: see Figure E.1. 3.3.3.16 switching device (of IC-CPD) device to switch power and/or protective conductor to the EV to provide charging Note: see Figure E.1. 3.3.4 Terms and definitions relating to values and ranges of energizing quantities 3.3.4.1 non-operating overcurrents maximum value of overcurrent of a single-phase load in the main circuit which, in the absence of any fault to frame or to earth, and in the absence of an earth leakage current, can flow through a two-pole IC-CPD without causing the IC-CPD to open the circuit 3.3.4.2 residual short-circuit withstand current maximum value of the residual current for which the operation of the IC-CPD is ensured under specified conditions and above which the device may be damaged [Source: GB 16916.1-2014, 3.4.3; modified - replacement of "RCCB" by "IC-CPD", and "undergo irreversible alterations" by "be damaged".] 3.3.4.3 prospective current current that would flow in the circuit, if each main current path of the IC-CPD and of the overcurrent protective device (if any) were replaced by a conductor of negligible impedance Note: This definition applies also in the same manner as an actual current, for example prospective breaking current, prospective peak current, prospective residual current. [Source: GB 16916.1-2014, 3.4.4; modified - replacement of "RCCB" by "IC-CPD".] 3.3.4.4 making capacity value of the a.c. component of a prospective current that an IC-CPD is capable of making at a stated voltage under prescribed conditions of use and behavior [Source: GB 16916.1-2014, 3.4.7; modified - replacement of “RCCB” by “IC-CPD”.] 3.3.4.5 breaking capacity value of the a.c. component of a prospective current that an IC-CPD is capable of breaking at a stated voltage under prescribed conditions of use and behavior [Source: GB 16916.1-2014, 3.4.8; modified - replacement of “RCCB” by “IC-CPD”.] 3.3.4.6 residual making and breaking capacity value of the a.c. component of a residual prospective current which an IC-CPD can make, carry for its opening time and break under specified conditions of use and behavior [Source: GB 16916.1-2014, 3.4.9, modified - replacement of "RCCB" by "IC-CPD".] 3.3.4.7 conditional short-circuit current value of the a.c. component of a prospective current, which an IC-CPD protected by a suitable short-circuit protective device (hereinafter referred to as SCPD) in series, can withstand under specified conditions of use and behavior [Source: GB 16916.1-2014, 3.4.10, modified - replacement of "RCCB" by "IC-CPD".] 3.3.4.8 conditional residual short-circuit current value of the a.c. component of a residual prospective current which an IC-CPD, protected by a suitable SCPD in series, can withstand under specified conditions of use and behavior [Source: GB 16916.1-2014, 3.4.11, modified - replacement of "RCCB" by "IC-CPD".] 3.3.4.9 Ux limiting value Ux of the line voltage for IC-CPDs to perform its intended functions as declared by the manufacturer for IC-CPDs 3.3.4.10 I2t (joule integral) integral of the square of the current, over a given time interval (t0, t1):

Contents of NB/T 42077-2016

Foreword i Introduction ii 1 Scope 2 Normative References 3 Terms and Definitions 4 Classification 5 Characteristics of IC-CPD 6 Marking and Other Product Information 7 Standard Conditions for Operation in Service and for Installation 8 Requirements for Construction and Operation 9 Tests Annex A (Normative) Test Sequences and Number of Samples to be Submitted for Verification of Conformity to This Standard Annex B (Normative) Routine Tests Annex C (Normative) Determination of Clearances and Creepage Distances Annex D (Informative) Switched-protective Conductor Application Annex E (Informative) Example of IC-CPD for Mode 2 Charging Annex F (Informative) Types of IC-CPD according to Construction and Assembly Annex G (Informative) Methods for Determination of Short-circuit Power Factor Bibliography