Standard No.:	GB/T 5226.1-2019
English Name:	Electrical safety of machinery—Electrical equipment of machines—Part 1:General requirements
Chinese Name:	机械电气安全 机械电气设备 第1部分:通用技术条件
Chinese Classification:	J09    Hygiene, safety and labor protection
Professional Classification:	GB    National Standard
Issued by:	SAMR and SAC
Issued on:	2019-06-04
Implemented on:	2020-1-1
Status:	valid
Superseding:	GB 5226.1-2008 Electrical Safety of Machinery - Electrical Equipment of Machines - Part 1: General Requirements
Language:	English
File Format:	PDF
Word Count:	48500 words
Price(USD):	450.0
Delivery:	via email in 1 business day

Electrical Safety of Machinery-Electrical Equipment of Machines - Part 1: General Requirements 1 Scope This part of GB/T 5226 applies to electrical, electronic and programmable electronic equipment and systems to machines (including a group of machines working together in a coordinated manner), and it is not applicable to the machines portable by hand while working. Note 1: this part is a general standard and is not intended to limit or inhibit technological advancement. Note 2: in this part, the term “electrical” includes electrical, electronic and programmable electronic matters (electrical equipment means electrical, electronic and programmable electronic equipment). Note 3: in the context of this part, the term “person” refers to any individual and includes those persons who are assigned and instructed by the user or his agent(s) in the use and care of the machine in question. The equipment covered by this part commences at the point of connection of the supply to the electrical equipment of the machine (see 5.1). Note 4: the requirements for the electrical supply installation in buildings are given in the IEC6034 series. This part is applicable to the electrical equipment or parts of the electrical equipment that operate with nominal supply voltages not exceeding 1000 V for alternating current (A.C.) and not exceeding 1500 V for direct current (D.C.), and with nominal supply frequencies not exceeding 200 Hz. Note 5: information on electrical equipment or parts of the electrical equipment that operate with higher nominal supply voltages can be found in IEC 60204-11. This part does not cover all the requirements (for example guarding, interlocking, or control) that are needed or required by other standards or regulations in order to protect persons from hazards other than electrical hazards. Each type of machine has unique requirements to be accommodated to provide adequate safety. This part specifically includes, but is not limited to, the electrical equipment of machines as defined in 3.1.40. Note 6: Annex C lists examples of machines whose electrical equipment can be covered by this part of GB/T 5226. This part does not specify additional and special requirements that can apply to the electrical equipment of machines that, for example: – are intended for use in open air (i.e. outside buildings or other protective structures); – use, process, or produce potentially explosive material (for example paint or sawdust); – are intended for use in potentially explosive and/or flammable atmospheres; – have special risks when producing or using certain materials; – are intended for use in mines; – are sewing machines, units, and systems (which are covered by IEC 60204-31); – are hoisting machines (which are covered by IEC 60204-32); – are semiconductor fabrication equipment (which are covered by IEC 60204-33). Power circuits where electrical energy is directly used as a working tool are excluded from this part of GB/T 5226. 2 Normative References The following referenced 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 16754-2008 Safety of machinery - Emergency stop — Principles for design （ISO 13850:2006, IDT） GB/T 6895.3-2017 Low-voltage electrical installations — Part 5-54: Selection and erection of electrical equipment — Earthing arrangements and protective conductors (IEC 60364-5-54:2011, IDT) GB 16895.5-2012 Low-voltage electrical installations — Part 4-43: Protection for safety—Protection against overcurrent (IEC 60364-4-43:2008, IDT) GB/T 6895.6-2014 Low-voltage electrical installations — Part 5-52: Selection and erection of electrical equipment — Wiring systems (IEC 60364-5-52:2009, IDT) GB 16895.21-2011 Low-voltage electrical installations — Part 4-41: Protection for safety — Protection against electric shock (IEC 60364-4-41:2005, IDT) GB 16895.22-2004 Electrical installations of buildings—Part 5-53: Selection and erection of electrical equipment—Isolation, switching and control—Section 534: Devices for protection against overvoltages (IEC 60364-5-53:2001, IDT) GB/T 16895.23-2012 Low-voltage electrical installations— Part 6: Verification (IEC 60364-6:2006, IDT) IEC 60034-1 Rotating electrical machines — Part 1: Rating and performance IEC 60072 (all parts) Dimensions and output series for rotating electrical machines IEC 60309-1 Plugs, socket-outlets and couplers for industrial purposes - Part 1: General requirements IEC 60364-1 Low-voltage electrical installations — Part 1 :Fundamental principles assessment of general characteristics，definitions) IEC 60417 Graphical symbols for use on equipment IEC60445:2010 Basic and safety principles for man machine interface. marking and identification — Identification of equipment terminals, conductor terminations and conductors IEC 60529 Degrees of protection provided by enclosures (IP Code) IEC 60664-1 Insulation coordination for equipment within low-voltage systems — Part 1: Principles，requirements and tests IEC 60947-2 Low- voltage switchgear and controlgear— Part 2: Circuit breakers) IEC 60947-3 Low-voltage switchgear and controlgear — Part 3: Switches, disconnectors, switch disconnectors, and fuse- combination units IEC 60947-5-:2003 Low-voltage switchgear and controlgear — Part 5-1: Control circuit devices and switching elements- Electromechanical control circuit devices IEC 60947-5-1 :2003/ AMD1 :2009 IEC 60947-5-5 Low-voltage switchgear and controlgear- Part 5-5: Control circuit devices and switching elements- Electrical emergency stop device with mechanical latching function IEC 60947-6-2 Low-voltage switchgear and controlgear- Part 6-2: Multiple function equipment-Control and protective switching devices (or equipment) (CPS) IEC 61140 Protection against electric shock- Common aspects for installation and equipment IEC 61310 (all parts) Safety of machinery-Indication, marking and actuation IEC 61439-1 Low- voltage switchgear and controlgear assemblies — Part 1: General rules products IEC 61558-1 Safety of power transformers, power supplies, reactors and similar products- Part 1: General requirements and tests IEC 61558-2-6 Safety of transformers, reactors, power supply units and similar products for supply voltages upto1 100 V — Part 2-6: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers IEC 61984 Connectors- Safety requirements and tests IEC 62023 Structuring of technical information and documentation IEC62061 Safety of machinery — Functional safety of safety- related electrical, electronic and programmable electronic control systems ISO 7010:2011 Graphical symbols- Safety colours and safety signs — Registered safety signs ISO 13849-1 Safety of machinery Safety-related parts of control systems — Part 1: General principles for design ISO 13849-2 Safety of machinery- Safety-related parts of control systems — Part 2: Validation 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 actuator part of a device to which an external action is to be applied Note 1: the actuator may take the form of a handle, knob, push-button, roller, plunger, etc. Note 2: there are some actuating means that do not require an external actuating force, but only an action, e.g. touchscreens. Note 3: see 3.1.39. 3.1.2 ambient temperature temperature of the air or other medium where the equipment is to be used 3.1.3 barrier part providing protection against contact with live parts from any usual direction of access 3.1.4 basic protection protection against electric shock under fault-free conditions

Introduction 1 Scope 2 Normative References 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions 3.2 Abbreviated terms 4 General requirements 4.1 General 4.2 Selection of equipment 4.3 Electrical supply 4.4 Physical environment and operating conditions 4.5 Transportation and storage 4.6 Provisions for handling 5 Incoming supply conductor terminations and devices for disconnecting and switching off 5.1 Incoming supply conductor terminations 5.2 Terminal for connection of the external protective conductor 5.3 Supply disconnecting (isolating) device 5.4 Devices for removal of power for prevention of unexpected start-up 5.5 Devices for isolating electrical equipment 5.6 Protection against unauthorized, inadvertent and/or mistaken connection 6 Protection against electric shock 6.1 General 6.2 Basic protection 6.3 Fault protection 6.4 Protection by the use of PELV 7 Protection of equipment 7.1 General 7.2 Overcurrent protection 7.3 Protection of motors against overheating 7.4 Protection against abnormal temperature 7.5 Protection against the effects of supply interruption or voltage reduction and subsequent restoration 7.6 Motor overspeed protection 7.7 Additional earth fault/residual current protection 7.8 Phase sequence protection 7.9 Protection against overvoltages due to lightning and to switching surges 7.10 Short-circuit current rating 8 Equipotential bonding 8.1 General 8.2 Protective bonding circuit 8.3 Measures to restrict the effects of high leakage current 8.4 Functional bonding 9 Control circuits and control functions 9.1 Control circuits 9.2 Control functions 9.3 Protective interlocks 9.4 Control functions in the event of failure 10 Operator interface and machine-mounted control devices 10.1 General 10.2 Actuators 10.3 Indicator lights and displays 10.4 Illuminated push-buttons 10.5 Rotary control devices 10.6 Start devices 10.7 Emergency stop devices 10.8 Emergency switching off devices 10.9 Enabling control device 11 Controlgear: location, mounting, and enclosures 11.1 General requirements 12 Conductors and cables 13 Wiring practices 13.3 Wiring inside enclosures 13.4 Wiring outside enclosures 13.5 Ducts, connection boxes and other boxes 14 Electric motors and associated equipment 14.1 General requirements 14.2 Motor enclosures 14.3 Motor dimensions 14.4 Motor mounting and compartments 14.5 Criteria for motor selection 14.6 Protective devices for mechanical brakes 15 Socket-outlets and lighting 15.1 Socket-outlets for accessories 15.2 Local lighting of the machine and of the equipment 16 Marking, warning signs and reference designations 16.1 General 16.2 Warning signs 16.3 Functional identification 16.4 Marking of enclosures of electrical equipment 16.5 Reference designations 17 Technical documentation 17.1 General 17.2 Information related to the electrical equipment 18 Verification 18.1 General 18.2 Verification of conditions for protection by automatic disconnection of supply 18.3 Insulation resistance tests 18.4 Voltage tests 18.5 Protection against residual voltages 18.6 Functional tests 18.7 Retesting Annex A (Normative) Fault protection by automatic disconnection of supply Annex B (Informative) Enquiry form for the electrical equipment of machines Annex C (Informative) Examples of machines covered by this part of GB/T Annex D (Informative) Current-carrying capacity and overcurrent protection of conductors and cables in the electrical equipment of machines Annex E (Informative) Explanation of emergency operation functions Annex F (Informative) Guide for the use of this part of GB/T Annex G (Informative) Comparison of typical conductor cross-sectional areas Annex H (Informative) Measures to reduce the effects of electromagnetic influences Annex I (Informative) Documentation / information