GB 14048.9-2008Low-voltage switchgear and controlgear - Part 6-2: Multiple function equipment - Control and protective switching devices (or equipment) (CPS) (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document is Part 6-2 of GB/T 14048 "Low Voltage Switchgear and Controlgear". GB/T 14048 has been published as follows.

Lower part.

--- Part 1: General;

--- Part 2: Circuit breakers;

--- Part 3: Switches, isolators, disconnectors and fuse combinations;

--- Part 4-1.Contactors and motor starters Electromechanical contactors and motor starters (including motor protectors);

--- Part 4-2.Contactors and motor starters. Semiconductor controllers and starters (including soft starters) for AC motors;

--- Part 4-3.Contactors and motor starters AC semiconductor controllers and contactors for non-motor loads;

--- Part 5-1.Control circuit devices and switching elements Electromechanical control circuit devices;

--- Part 5-2.Control circuit electrical appliances and switching elements proximity switches;

--- Part 5-3.Proximity switches (PDDB) with defined functions under fault conditions for control circuit appliances and switching elements Require;

--- Part 5-4.Performance evaluation methods for small capacity contacts of control circuit devices and switching elements Special tests;

--- Part 5-5.Electrical emergency brake devices with mechanical latching function for control circuit appliances and switching elements;

--- Part 5-6.DC interfaces for control circuits, electrical and switching elements, proximity sensors and switching amplifiers (NAMUR);

--- Part 5-7.Requirements for control circuit devices and switching elements for proximity devices with analog outputs;

--- Part 5-8.Control circuit devices and switching elements Three-position enabling switch;

--- Part 5-9.Control circuit appliances and switch elements flow switches;

--- Part 6-1.Multifunctional electrical switchgear;

--- Part 6-2.Multifunctional electrical control and protection switchgear (equipment) (CPS);

--- Part 7-1.Terminal blocks for copper conductors of auxiliary devices;

--- Part 7-2.Protective conductor terminal blocks for copper conductors of auxiliary devices;

--- Part 7-3.Safety requirements for auxiliary device fuse terminal blocks;

--- Part 7-4.PCB terminal blocks for copper conductors of auxiliary devices;

--- Part 7-5.Terminal blocks for aluminium conductors of auxiliary devices;

--- Part 8: Built-in thermal protection (PTC) control units for rotating electrical machines;

--- Part 9-1.Arc extinguishing devices for active arc fault suppression systems.

This document replaces GB/T 14048.9-2008 "Low-voltage switchgear and controlgear Part 6-2.Multifunctional electrical appliances (equipment) control Compared with GB/T 14048.9-2008, in addition to structural adjustments and editorial changes, the main technical the technical changes are as follows.

--- Added provisions not applicable to this document in the scope (see Chapter 1).

--- Updated terms and definitions (see Chapter 3, Chapter 3 of the 2008 edition).

--- To be consistent with the latest content of IEC 60947-1:2020, the following content has been added or changed.

- Flag ("s", "sol", "r" or "f") (see 6.1.2);

- Environmental information (see 6.4);

- Structural requirements, including material requirements (see 8.1, 8.1 of the 2008 edition);

- Requirements for screwless terminals (see 9.2.2, 9.2.3);

- Method for measuring polar impedance (see 8.2.6, 9.3.3.8);

- EMC requirements and tests (see 8.3, 9.4, 8.3, 9.3.5 of the 2008 edition);

- Assessment procedures for electromechanical CPS used in safety locations (see Appendix K).

--- To coordinate with IEC 60947-2:2016, the following contents are added or changed.

- Operation test of undervoltage relay and shunt release (see 9.3.3.2.2);

- CPS for IT systems (see Appendix G, Appendix G of the 2008 edition);

- Coordinate with other short-circuit protection devices (see 8.2.9, Appendix F of the 2008 edition).

--- To be consistent with the latest content of IEC 60947-4-1:2018, the following content is added.

- Short-circuit test is coordinated with North American requirements (see Table 13);

- Add the requirements for limited energy (see 8.1.14, 9.2.4);

- Reliability data for functional safety applications (see Appendix K) - Additional requirements for protective isolation (see Appendix N);

- Adapt to the applicable conditions of motors with higher energy efficiency levels and add relevant provisions for high rotor locked current (see Table 8, Table 10,

Table 11);

- Requirements for special wiring accessories (see 8.1.1);

- Definition and measurement method of control circuit power consumption during holding and closing (see 9.3.3.9).

--- Changed the requirements for auxiliary contacts connected to the power contacts (mirror contacts) (see Appendix F, Appendix F of the 2008 edition).

--- Deleted the extended functions of electronic overload relays and releases (see Appendix H of the 2008 edition).

This document is equivalent to IEC 60947-6-2:2020 "Low-voltage switchgear and controlgear Part 6-2.Multi-function electrical control and protective switching electrical appliances (equipment) (CPS)".

The following minimal editorial changes were made to this document.

--- Change the examples of control methods in 5.2.4 to automatic and non-automatic to avoid ambiguity in the description in brackets of item 1;

--- Add a note to Table 6 to indicate that the given temperature rise limits apply to ambient air temperatures of -5°C to 40°C;

--- Added the title "9.5.3.2.1 General requirements", and then the format was extended to avoid hanging paragraphs;

--- Deleted the examples in the titles of 9.5.3.2.2, 9.5.3.2.3, 9.5.3.3.2 and 9.5.3.3.3 to avoid misunderstanding.

Introduction

Low voltage switchgear and control equipment are large in quantity and wide in scope, and the products include. circuit breakers, isolators, isolating switch and fuse combination appliances, Contactors and starters are widely used in various fields such as machinery, electricity, and electronics, involving many aspects such as the control and distribution of electric energy.

GB/T 14048 "Low-voltage switchgear and controlgear" is an important series of standards guiding my country's low-voltage switchgear and controlgear related products.

It is planned to consist of 25 parts.

--- Part 1: General. The purpose is to specify the overall requirements for low-voltage switchgear and controlgear.

--- Part 2: Circuit breakers. The purpose is to specify product-related requirements such as performance requirements and test methods for circuit breakers.

--- Part 3: Switches, isolators, disconnectors and fuse combinations. The purpose is to specify switches, isolators, disconnectors and product related requirements such as performance requirements and test methods for fuse combination appliances.

--- Part 4-1.Contactors and motor starters Electromechanical contactors and motor starters (including motor protectors).

The purpose of this standard is to specify the performance requirements and test methods of electromechanical contactors and motor starters (including motor protectors) and other products.

About requirements.

--- Part 4-2.Contactors and motor starters. Semiconductor controllers and starters (including soft starters) for AC motors.

The purpose is to specify the performance requirements and test methods of semiconductor controllers and starters (including soft starters) for AC motors.

Product related requirements.

--- Part 4-3.Contactors and motor starters AC semiconductor controllers and contactors for non-motor loads.

It is used to specify product-related requirements such as performance requirements and test methods for AC semiconductor controllers and contactors for non-motor loads.

--- Part 5-1.Control circuit devices and switching elements Electromechanical control circuit devices. The purpose is to specify electromechanical control circuit devices.

Product-related requirements such as performance requirements and test methods for circuit breakers.

--- Part 5-2.Control circuit electrical appliances and switch elements proximity switches. The purpose is to specify the performance requirements and test Product related requirements such as test methods.

--- Part 5-3.Requirements for proximity switches (PDDB) with defined functions under fault conditions for control circuit devices and switching elements the purpose is to specify the performance requirements and test methods of proximity switches with certain functions under fault conditions and other product-related Require.

--- Part 5-4.Performance evaluation methods for small capacity contacts of control circuit electrical appliances and switching elements Special tests.

Special test requirements for the performance evaluation of small capacity contacts.

--- Part 5-5.Electrical emergency brake devices with mechanical latching function for control circuit appliances and switching elements.

Specifies product-related requirements such as performance requirements and test methods for electrical emergency brake devices with mechanical latching functions.

--- Part 5-6.DC interfaces for control circuits, electrical and switching elements, proximity sensors and switching amplifiers (NAMUR).

The purpose is to specify product-related requirements such as performance requirements and test methods for the DC interface of proximity sensors and switching amplifiers.

--- Part 5-7.Requirements for control circuit devices and switching elements for proximity devices with analog outputs. The purpose is to specify Product-related requirements such as performance requirements and test methods for proximity devices with analog outputs.

--- Part 5-8.Control circuit devices and switching elements Three-position enabling switches. The purpose is to specify the performance of three-position enabling switches Requirements and test methods and other product related requirements.

--- Part 5-9.Control circuit appliances and switch elements flow switches. The purpose is to specify the performance requirements and test conditions of flow switches Product related requirements such as test methods.

--- Part 6-1.Multifunctional electrical switchgear. The purpose is to specify the performance requirements and test methods of switchgear.

product-related requirements.

--- Part 6-2.Multifunctional electrical control and protection switchgear (equipment) (CPS). The purpose is to specify the control and protection switch Product related requirements such as performance requirements and test methods for electrical appliances.

--- Part 7-1.Terminal blocks for copper conductors of auxiliary devices. The purpose is to specify the performance requirements of terminal blocks for copper conductors.

Requirements and test methods and other product related requirements.

--- Part 7-2.Auxiliary devices for protective conductor terminal blocks for copper conductors. The purpose is to specify the protective conductor terminal blocks for copper conductors.

Product related requirements such as performance requirements and test methods for terminal blocks.

--- Part 7-3.Safety requirements for fuse terminal blocks for auxiliary devices. The purpose is to specify the fuse terminal blocks Safety related requirements.

--- Part 7-4.PCB terminal blocks for copper conductors of auxiliary devices. The purpose is to specify PCB terminal blocks for copper conductors Product related requirements such as performance requirements and test methods.

--- Part 7-5.Terminal blocks for auxiliary devices and aluminum conductors. The purpose is to specify the performance requirements of terminal blocks for aluminum conductors.

Requirements and test methods and other product related requirements.

--- Part 8: Built-in thermal protection (PTC) control unit for rotating electrical machines. The purpose is to specify the built-in thermal protection (PTC) control unit for rotating electrical machines.

Product related requirements such as performance requirements and test methods of protective (PTC) control units.

--- Part 9-1.Arc extinguishing devices for active arc fault suppression systems. The purpose is to specify the performance requirements and tests of arc extinguishing devices Methods and other product related requirements.

--- Part 9-2.Arc fault active suppression systems - Internal arc detection and suppression devices based on optical signals.

Determines product-related requirements such as performance requirements and test methods for internal arc detection and suppression equipment based on optical signals.

Control and protection switchgear (CPS) integrates control and protection functions and has the characteristics of integration, modularization, miniaturization and high performance.

It can simplify system design, save energy and materials, and facilitate installation and debugging. From the perspective of technological development, CPS not only has it presents diversified development, showing changes, diversity, multi-dimensionality and multi-concepts in many aspects such as usage occasions, accessories and implementation methods of various functions.

Features.

This document specifies the characteristics, operational performance, dielectric properties, enclosure protection level (when equipped with an enclosure) and construction (including electric shock protection) of the CPS.

protection, fire risk and mechanical damage), as well as the tests and test methods used to verify that these conditions are met, and the marking is specified.

Information on the product or provided by the manufacturer.

Low voltage switchgear and controlgear Part 6-2.Multifunctional electrical appliances Control and protection switchgear (equipment) (CPS)

1 Scope

This document applies to control and control circuits connected to the main contact circuit with a rated voltage not exceeding 1000V AC or 1500V DC Protective switch electrical equipment (equipment) (CPS).

This document applies to the following control and protection switchgear (equipment) (CPS).

---Provide protection and control functions for circuits and motor loads;

---Control functions are realized by non-manual operation;

---Can operate continuously after an overcurrent fault;

---Can have additional functions, such as isolation or communication functions.

This document does not apply to.

--- Auxiliary contacts specified by IEC 60947-5-1;

---CPS1 for variable frequency drive output);

1) Manufacturers need to take additional safety measures in this regard.

NOTE. Additional requirements for CPS used at the output of variable frequency drives are under consideration.

--- Additional measures for use of products in explosive atmospheres as specified in IEC 60079 (all parts);

---Embedded software design rules specified in IEC TR63201;

---Cybersecurity as specified in IEC TS63208.

The purpose of this document is to specify.

---Characteristics of CPS;

--- In terms of operating performance, dielectric properties, enclosure protection level (when equipped with enclosure) and structure (for electric shock protection, fire protection and mechanical Conditions that CPS needs to meet in terms of protection against mechanical injuries, etc.;

--- Tests and test methods used to verify that these conditions are met;

--- Information marked on the product or provided by the manufacturer.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.

GB/T 755-2019 Ratings and performance of rotating electrical machines (IEC 60034-1:2017, IDT) GB/T 17045-2020 Common parts for electric shock protection devices and equipment (IEC 61140:2016, IDT) GB/T 19334-2021 Dimensions of low-voltage switchgear and controlgear for use as machines in switchgear and controlgear and their accessories Standard mounting rail for mechanical support (IEC 60715:2017, IDT) ISO 3864-2 Graphical symbols, safety colours and safety signs - Part 2: Design principles for product safety labels