GB 5226.2-2002 Safety of machinery - Electrical equipment of machinery - Part 32: Technical requirements for lifting machinery
Some standard content:
GB5226.2—2002
Chapter 1, Chapter 2, Chapter 3, Chapter 12, Chapter 13, Chapter 17 and Chapter 18 of this standard are recommended, and the rest are mandatory.
This standard is equivalent to IEC60204-32:1998 "Machinery Safety - Electrical Equipment for Machinery - Part 32: Technical Conditions for Lifting Machinery".
GB5226, under the general title of "Machinery Safety - Electrical Equipment for Machinery", includes the following parts: Part 1: General Technical Conditions
Part 11: General Technical Conditions for AC Voltages Higher Than 1000V or DC Voltages Higher Than 1500V but Not Exceeding 36kV Part 31: Special Requirements for Sewing Machinery Units and Systems Part 32: Technical Conditions for Lifting Machinery
Appendix A, Appendix B and Appendix C of this standard are indicative appendices. This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Technical Committee for Standardization of Industrial Machinery Electrical Systems. The responsible drafting unit of this standard is Beijing Hoisting and Conveying Machinery Research Institute. The participating drafting units of this standard are Zhejiang Jianhuan Electric Machinery Co., Ltd., Shanghai Port Machinery Co., Ltd., Jiamusi Explosion-proof Motor Research Institute, Demag Hoisting Machinery (Shanghai) Co., Ltd., Yangzhou Tianbao Automation Engineering Co., Ltd., Nanjing Yuding Electronics Co., Ltd., Jiangsu Sanma Hoisting Machinery Manufacturing Co., Ltd., Luoyang Qianwei Safety Busbar Factory. The main drafters of this standard are Zhao Chunhui, Xia Ri, Wan Deyi, Wu Wensheng, Fu Hangning, Wu Yixin, Zhang Cai, Wang Hongquan, Wang Dongyang, and Sun Xiaoping. 703
GB5226.2-2002
IEC Foreword
1) IEC (International Electrotechnical Commission) is a worldwide standardization organization composed of national electrotechnical committees (IEC National Committees) of various countries. The goal of IEC is to promote international cooperation on all issues of standardization in the field of electrical engineering. In order to achieve this goal and other activities, IEC publishes international standards. The drafting of IEC standards is entrusted to technical committees. Any IEC National Committee interested in the subject in question may participate in this drafting work. International organizations, governmental and non-governmental organizations in liaison with the EC also participate in this drafting work. The IEC maintains close cooperation with the International Organization for Standardization (ISO) in accordance with the agreement reached between the two organizations. 2) Since each technical committee has representatives from interested national committees, the formal decisions or agreements of the IEC on technical topics express as closely as possible the international consensus on the subject in question. 3) The documents produced take the form of recommendations for international application and are published in the form of standards, technical reports or guidelines, in the sense that they are accepted by the National Committees.
4) In order to promote international unification, the IEC National Committees are responsible for explicitly adopting IEC International Standards in their national and regional standards as far as possible. Any differences between IEC standards and corresponding national or regional standards are recommended to be clearly indicated in the latter. 5) The IEC does not prescribe any marking method for indicating approval, nor does it assume any responsibility for any equipment claiming to conform to an IEC standard.
6) Attention is drawn to the fact that some provisions of this International Standard may involve patent rights. IEC is not responsible for verifying any or all such patent rights.
IEC 60204-32 was prepared jointly by Technical Committee IEC/TC44: Safety of Machinery - Electrotechnical Aspects and Technical Committee IEC/TC64: Electrical Installations in Buildings.
This edition includes the content of the fourth edition of IEC 60204-1. This standard is based on the following documents:
44/228/FDIS
Voting Report
44/235/RVD
Full information on the voting for the approval of this standard can be found in the voting report in the table above. Annexes A, B, C and D are informative annexes. The following differences exist in some countries:
4.3.1: The voltage characteristics of the power supply from the public distribution system shall comply with the requirements specified in EN50160:1994 \ "Voltage characteristics of the power supply from the public distribution system" (Europe);
-~7.2.3: The neutral conductor of the TN-S system must be disconnected (France);--10.7.2: The use of non-locking emergency stop devices in combination with a single reset device is considered to be permitted (USA);-·---13.6 Table 6: The cross-sectional area of the conductors shall comply with the provisions of the American Wire Gauge (AWG) (USA);-14.2 .2: For protective conductors, the color identification is green (with or without yellow stripe) and the yellow-green combination is equivalent (USA and Canada);
-14.2.3: The color identification of the grounding neutral conductor is white or gray instead of light blue (USA and Canada); 14.2.4: Yellow instead of orange for this purpose (USA). 70-1
National Standard of the People's Republic of China
Safety of Machinery
Electrical Equipment of Machinery
Part 32: Technical Conditions for Lifting Machinery
Safety This standard puts forward technical requirements and recommendations for electrical equipment of hoisting machinery in order to promote the improvement of: - safety of personnel and property;
- consistency of control response;
convenience of maintenance.
should not sacrifice the above basic requirements to obtain high performance. GB 5226. 2—2002
idt IEC 60204-32:1998
Figures 1 and 2 help to understand the relationship between the various aspects of a lifting machine and its associated equipment. Figure 1 shows the general block diagram of a typical material handling system (a group of cranes working together), and Figure 2 is a block diagram of a typical crane and associated equipment, which shows the various aspects of the electrical equipment involved in this standard.
Data transmission of arrival/departure information of materials transported by ships, barges, trains or heavy-duty
trucks
The port central control station is used for:
Stacking area control
Logistics data
Rail cranes
(see Figure 2)
Local data system (LAN) via:
Wired system
Wireless system
Tire cranes
(see Figure 2)
The physical connection between the following items Flow:
Ship, barge, train, truck, stacking area and loading area Port maintenance control station
Crane status
Fault display
Rail-mounted or tire-mounted stacking
Crane (see Figure 2)
Block diagram of cranes working together in a typical material handling system in a port Figure 1
Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on June 13, 2002 Implementation on July 1, 2003
Emergency start
Emergency stop
Actual environment
Operation control station
Driver installed on the crane
Room control
Driver installed on the crane
Room control
Ground control
-Fixed control station
Suspended control station
Wireless control station
! Central control station
Data transmission
Safety protection devices and warning devices
Equipment protection
Auxiliary circuit for emergency situations
GB 5226.2--2002
Crane power switch
Collector wire, busbar
Power soft cable
Warning sign
Item code
Technical document
Crane feeder switch (only for voltage exceeding 1kV) transformer
Special circuit
Crane isolator
Load holding device
Crane switch
Electric shock protection
Crane structure as protective conductor
On-board power supply
Diesel generator
Crane control
Relay Control
Electronic control
Programmable logic control
On-board computer
Auxiliary drive device
Operating parts
Sensors
Load holding device
Drive device and motor control device
Power line
Power electronic equipment
Inverter
Drive device controller
Main drive load
Motor
Brake
Figure 2 Block diagram of a typical crane and related electrical equipment This standard applies to electrical and electronic equipment and systems of lifting machinery and related equipment. Notes
1 In this standard, the word "electrical" includes both electrical and electronic aspects (i.e. electrical equipment refers to both electrical equipment and electronic equipment. 2 In this standard, the word "personnel" refers to any individual and those who are assigned by the user or its agent to use and manage the lifting machinery. The equipment included in this standard starts from the power supply connection of the lifting machinery electrical equipment (crane power switch), including the power supply and control feeder system outside the lifting machinery, such as flexible cables or collector wires or busbars (see Figure 3). Note 3: For the requirements for building power installation, refer to IEC60364. This standard applies to electrical equipment and its components, whose line voltage does not exceed 1000V (ac) or 1500V (dc) and the rated frequency does not exceed 200Hz.
Note 4: The requirements for high-voltage equipment are considered by IEC/TC44 and IEC/TC99. For use in explosive and/or flammable environments Additional special requirements may be specified for the electrical equipment of lifting machinery in this standard. For the purpose of this standard, lifting machinery includes various types of cranes, various types of winches and rail-mounted stacking cranes. It includes the following products in 706
:
bridge cranes;
mobile cranes;
tower cranes;
slewing luffing cranes;
gantry cranes;
·shore cranes;
-floating cranes;
various winches;
hoists and accessories;
-loading cranes;
cable cranes;
load holding devices;
rail-mounted stacking cranes;
monorail trolley transport systems;
straddle carriers;
tired gantry cranes (RTGs).
GB 5226. 2--2002
Except for the selection and installation of individual components of electrical equipment, this standard does not cover individual components of electrical equipment. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB755--2000 Ratings and performance of rotating electrical machines (idtIEC60034-1:1996) GB/2900.18-1992 Electrical terminology low-voltage electrical appliances (eqvIEC60050-441:1984) GB/T3859.1-1993 Provisions for basic requirements for semiconductor converters (eqvIEC60146-1-1:1991) GB/T4026-1992 General rules for the identification and application of alphanumeric systems for wiring terminals and specific wire ends of electrical equipment (idtIEC GB/T 4772.1-1999 Dimensions and output power classes of rotating electrical machines Part 2: Frame sizes 355-1000 and flange sizes 1180-2360 (idtIEC60072-2:1990) GB/T 4942.1-2001
Roasting electrical machine enclosure protection grade (IP code) (idtIEC60034-5: 1991) GB5094.1-2002 Industrial system, device and equipment and industrial product composition principle and representation Part 1: Basic provisions (idtIEC 61346-1: 1996)
GB/T6988.1-—1997 Preparation of electrical technical documents Part 1: General requirements (idtIEC61082-1: 1991) Preparation of electrical technical documents Part 2: Functional diagram (idtIEC61082-2: 1993) GB/T 6988.2—1997
GB/T 6988. 3--1997
GB/T 6988. 4—2002bZxz.net
GB 7251.1—1997
Preparation of electrical technical documents
Part 3: Wiring diagrams and wiring tables (idtIEC61082-3:1993)
Preparation of electrical technical documents Part 4: Positioning and installation documents (idtIEC61082-4:1996)
Low-voltage switchgear and controlgear Part 1: Type test and partial type test complete sets of equipment 707
GB 5226.2—2002
Equipment (idt IEC 60439-1:1992)
GB 7947—1997
Color or number marking of conductors (idtIEC60446:1989) GB 13028---1991
Technical requirements for isolating transformers and safety isolating transformers (eqvIEC60742:1983) GB/T13534--1992 Codes for electrical color markings (eqvIEC60757:1983) GB14048.3-1993 Low-voltage switchgear and controlgear Low-voltage switches, isolators, disconnectors and fuse combinations (eqvIEC 60947-3:1990)
GB14048.41993
Low-voltage switchgear and controlgear Low-voltage electromechanical contactors and motor starters (eqvIEC60947-4-1:1990)
GB14048.7--1998 Low-voltage switchgear and controlgear auxiliary electrical appliances Part 1: Terminal blocks for copper conductors (eqvIEC 60947-7-1: 1989)
GB/T14733.3-1993 Telecommunications terminology Reliability, maintainability and service quality (egvIFEC60050 (191): 1990) 3 Protection against electric shock of electrical installations in buildings (eqvIEC60364-4-41: 1992) GB 14821. --1993
GB/T15706.1-1995 Basic concepts and general principles for design of machinery safety Part 1: Basic terminology, methodology (eqvISO/TR 12100-1: 1992)
Electrical installations in buildings Part 5: Selection and installation of electrical equipment Chapter 54: Grounding configuration and GB 16895.3—1997
Protective conductor (idtIEC60364-5-54:1980)Insulation coordination of equipment in low voltage systems Part 1: Principles, technical requirements and tests (idtIECGB/T 16935. 1--1997
60664-1:1992)
Cable combustion test under flame conditions Part 1: Vertical combustion test method for single insulated wire or cable GB/T 18380.1-—2001
(idtIEC60332-1:1993) ISO3864:1984 Safety colors and safety signs ISO7000:1989 Index and list of graphic symbols for equipment 1SO13852: 1996 Safety of machinery Safety distances to prevent upper limbs from reaching hazardous areas IEC60034-11: 1978 Rotating electrical machines Part 11: Man-mounted thermal protection IEC60050 (826): 1982 International Electrical Vocabulary Part 826: Electrical installations in buildings 1EC60073: 1996 Basic and safety principles for marking and identification of human-machine interfaces Coding principles for indicators and actuators IEC60076-5: 19 76 Power transformers Part 5: Capacity to withstand short circuits IEC60309-1: 1988 Industrial plugs, sockets and couplers Part 1: General requirements IEC60364-3: 1993 Electrical installations in buildings Part 3: Evaluation of general characteristics Electrical installations in buildings Part 4: Safety protection Chapter 46: Isolation and switching IEC60364-4-46: 19813
Electrical installations in buildings Part 4: Safety protection Chapter 47: Application of safety protection measures IEC 60364-4-47:1981
Section 470: General Section 471: Measures for protection against electric shock Electrical installations of buildings Part 4: Safety protection Chapter 47: Application of safety protection measures 1EC 60364-4-473:19773
Section 473: Measures for protection against overcurrent
IEC 60364-4-481:1993
IEC 60364-5-523:1983
Electrical installations of buildings Part 4: Safety protection Chapter 48: Selection of protective measures that vary with the external environment Section 481: Selection of measures for protection against electric shock related to external influences Electrical installations of buildings Part 5: Selection and installation of electrical equipment Chapter 52: Wiring systems Section 523: Current carrying capacity
Electrical installations of buildings Part 6: Verification Chapter 61: Initial verificationIEC 60364-6-61:19863
IEC 60417-2:1998
Graphical symbols for equipment Part 2: Prototype symbols Man-machine interface (MMI) Principle of operation
IEC 60447:1993
Classification of protection against electric shock for electrotechnical and electronic equipment
IEC 60536:1976
: Electrical installations in outdoor locations (including open-pit mines and quarries) under severe conditions Part 3: General requirements for equipment and accessoriesIEC 60621-3:1979
GB 5226. 2-2002
IEC 60947-2:1995 1
Low-voltage switchgear and controlgear Part 2: Circuit breakers Low-voltage switchgear and controlgear Part 5: Control circuit devices and switching elements Section 1: IEC 60947-5-1:1997 1
Electromechanical control circuit devices
IEC61131-1:1992 Programmable controllers Part 1: General requirements Programmable controllers Part 2: Equipment technical requirements and tests IEC 61131-2:1992
3 Definitions
Note: The index lists the terms and abbreviations defined in this chapter in alphabetical order and indicates the specific chapters in the body of this standard in which they appear. This standard adopts the following definitions. For general terms, refer to IEC60050 (826). 3.1 Actuator
The component that applies external operating force to the operating system. [3.3.48 in GB/T2900.18-1992] Note
Actuators can be in the form of handles, knobs, buttons, rollers, plungers, etc. 2 Some operating methods only require action without external force. 3 See 3.38.
3.2 Ambient temperature ambienttemperature The temperature of the air or other medium where the equipment is used. [IEV826-01-04] 3.3 Barrier barrier
Parts that prevent direct contact from any direction of normal passage. [IEV826-03-13] 3.4 Cabin controlled hoisting machine Hoisting machine operated by a cab permanently attached to the hoisting machine. 3.5 Cable tray cable tray
-A cable support with a continuous strip bottom that is slightly folded upwards but without a cover. Note: The cable tray can be perforated or not. [IEV826-06-07] 3.6 Cable duct device cable trunking system A closed housing device consisting of a base and a removable cover, used to completely enclose insulated wires, cables and cords and to accommodate other electrical equipment. [Derived from IEV826-06-04]. 3.7 Concurrent
Acts in a joint form, used to describe two or more control devices being in working state at the same time (but not necessarily synchronously). 3.8 Electrical conduit
A component of a closed wiring system with a circular or non-circular cross-section used for insulated wires and/or cables in electrical equipment, in which the insulated wires and cables are pulled and replaced.
Note: Electrical conduits should be tightly connected so that insulated wires and/or cables can only pass through the pipe and are not allowed to pass through the outside. [1EV826-06-03] 3.9 (hoisting machine) control circuit control circuit (of a hoisting machine) A circuit used for operating control and protecting power circuits of hoisting machinery. 3.10 Control device control device
A device connected in a control circuit to control the operation of a lifting machine (such as a position sensor, manual switch, relay, solenoid valve, etc.). 3.11 Control gear control gear
A general term for a combination of switching devices used mainly to control powered equipment and these switching devices and associated control, measurement, protection and regulation equipment. It also refers to a combination of these devices and equipment and associated internal connecting wires, auxiliary parts, housings and supporting structural parts. [3.1.6 in GB/T2900.18--1992]
3.12 Controlled stop controlled stop
GB 5226.2-2002
When the control device has identified the stop signal, the command signal is converted to zero to stop the movement of the lifting machine, but the power supply to the lifting machine actuator is maintained during the stop process
3.13 Crane crane
A machine used to lift/lower and horizontally move suspended loads. 3.14 Crane isolator crane-disconnector-A manual isolating device installed on the lifting machinery, used to disconnect (isolate) the power circuit (such as for repair or maintenance work). 3.15 Crane switch crane-switch
A switching device used to disconnect the power supply of the drive device (such as used in emergency stop). 3.16 Crane supply switch crane-supply-switch A disconnecting (isolating) and switching device used to disconnect the power supply input of the lifting machinery. 3.17 digital digital
Data represented by digital or other characters that works with discrete signals. 3.18 direct contact direct contact
People or livestock touch the live parts. [IEV826-03-05] 3.19 Duct
Enclosed passage specially used to place and protect wires, cables and busbars. Note: Pipe types include electrical conduits (see 3.8), cable conduit devices (see 3.6) and underground trunking. 3.20 Electrical operating area A compartment or location of an electrical device that is only accessible to skilled or trained personnel, who can access it by opening a door or removing a partition without using a key or tool. The compartment or location is clearly marked with warning signs. 3.21 Electronic equipment An electrical equipment component whose circuit is mainly composed of electronic components. 3.22 Enclosed electrical operating area A compartment or location of an electrical device that is only accessible to skilled or trained personnel, who can access it by opening a door or removing a partition with a key or tool. The compartment or location is clearly marked with warning signs. 3.23 Enclosure
Parts that protect the equipment from certain external influences and prevent direct contact with live parts from any direction. [IEV826-03-12] Note: This is taken from the definition of the current IEV and is interpreted as follows within the scope of this standard (see GB42081993 in 3.1): a) The enclosure provides protection for persons or animals from access to hazardous parts, b) Partitions, formed holes or any other devices used to prevent or limit the entry of special test probes, whether attached to the enclosure or formed by the enclosing equipment, are considered to be part of the enclosure unless they can be removed without a key or tool. The enclosure can be:
... a cabinet or box mounted on or independent of the lifting machinery; a compartment formed by an enclosed space on the lifting machinery structure (such as a box beam). 3.24 Equipment equipment
Equipment is a general term including materials, devices, devices, tools, fixtures, instruments and similar parts that are part of or connected to an electrical installation.
equipotential bonding
3.25 Equipotential bonding
Electrically connect each exposed conductive part to an external conductive part to achieve substantial equipotentiality. [IEV826-04-091
3.26 Exposed conductive part exposed conductive part A conductive part of an electrical device that is accessible, not normally energized, but may become energized under fault conditions. Note: A conductive part of an electrical device that may become energized only through an exposed conductive part under fault conditions should not be considered an exposed conductive part. [IEV 826-03-02]
GB5226.2—2002
3.27 Extraneous conductive part A conductive part that is not part of an electrical device and is susceptible to forming a potential, usually at ground potential. [IEV826-03-03] 3.28 Failure failure
The termination of the ability to perform a specified function: Note
1 After a failure, the function item is faulty.
2 A failure is an event, which is distinguished from a "fault" as a state. 3 This concept is a definition and does not apply to functional items that only contain software. 4 In practice, the terms fault and failure are often used interchangeably. 3.29 Fault
The state characterized by a functional item that cannot perform a specified function. The loss of function during preventive maintenance or other planned operations, or due to lack of external resources, is excluded. [GB/T 14733.3-1993 191.05.01] Note
Fault is often the result of the failure of the functional item itself, but may have existed before the failure. 1
2 The English word "fault" and its definition are consistent with GB/T 14733.3 191.05.01. However, in the field of mechanics, French and German often use "defaut" and "Fehler" instead of "panne" and "Fehizustand" which seem to meet the definition. 3.30 Guard
A lifting machinery component specially used to provide protection with the help of a partition. According to the structure, it can be called a box, cover, screen, door, enclosure, etc. [Derived from 3.22 in GB/T15706.1-1995] 3.31 Hand-held direct-control device A hand-held direct-control device is a kind of mobile switch device. During operation, the housing is moved by hand and directly acts on the power circuit. 3.32 Hazard
The source of possible injury or health damage. [Derived from 3.5 in GB/T15706.1-1995] 3.33 Indirect contact Indirect contact A person or animal touches an exposed conductive part that is energized in the event of a fault. [IEV826-03-06] 3.34 (Electrical) Trained person (electrically instructed person) A person who has been fully instructed by a skilled electrical person or under his supervision and can perceive electrical risks and avoid electrical hazards. [Derived from IEV 826-09-02]
3.35 Interlock (for safeguarding) A circuit connection method that interconnects a protective device or component with a control system and/or distributes all or part of the electrical energy to the lifting machinery. 3.36 Limiting device
A device used to prevent the lifting machinery or its components from exceeding the design limit (such as space limit, pressure limit). [Derived from 3.23.7 in GB/r15706.1--1995] 3.37 Live part
A conductor or conductive part that is live in normal use, including a neutral conductor, but by convention excluding PEN conductors. Note: This term does not necessarily imply a risk of electric shock. [IEV826-03-01] 3.38 Mechanical actuator A power mechanism used to cause the movement of the driving device of the lifting machinery. 3.39 Mechanical (machine) A combination of a series of parts, at least one of which is movable, with appropriate mechanical actuators, control and power circuits, etc. Their combination has a certain application purpose, such as material processing, handling, handling or packaging. The term "machine" also includes units that are arranged and controlled to perform their functions like a complete machine to achieve the same application purpose.
"Machinery" also refers to interchangeable equipment used to change the function of a machine. This equipment is provided on the market to allow operators to assemble it with a machine or a series of different machines, or with a traction machine. However, this equipment is not a spare part or tool. 3.40 Marking
Symbols or signs used by component manufacturers to distinguish component types. 3.41 Neutral conductor (symbol N) neutral conductor (symbol N) A conductor connected to the neutral point of the system, which can facilitate the transmission of electrical energy. [IEV826-01-033.42 Obstacle
A component used to prevent unintentional direct contact, but not intentional direct contact. [1EV826-03-14]3.43 Overcurrent
Various currents exceeding the rated value. For wires, the rated value refers to the current carrying capacity. "IEV826-05-06] 3.44 Overload (of a circuit) Overload is the relationship between the time and current of a circuit when the circuit exceeds the rated full load value under fault-free conditions. Notes
1 Overload should not be used as a synonym for overcurrent. 2 In lifting machinery, the word "overload" is also used for mechanical overload, which may or may not cause electrical overload. 3.45 Plug/socket combination plugs and sockets, cable couplers and appliance couplers shall comply with the provisions of IEC60309-1. 3.46 (Positive or direct) opening action (of a contact element) opening action (positive or direct) opening action (of a contact element) directly caused by the separation of contacts by a non-elastic member (e.g. without relying on a spring) to complete the specified action of the switch operator. [IEC 60947-5-1:1997K.2.2
3.47 Power circuit power circuit
A circuit that supplies power from the power grid to electrical equipment units and control circuit transformers for productive operation. 3.48 Protective bonding circuit The sum of protective conductors and conductive parts used to prevent electric shock in the event of insulation failure. 3.49 Protective conductor protective conductor A conductor required for certain measures to prevent electric shock, used for electrical connection to the following parts: exposed conductive parts;
external conductive parts;
main grounding terminal
grounding electrode;
power supply grounding point or artificial neutral grounding point. [IEV 826-04-05]
3.50 Redundancy
The application of more than one device or system, or more than one part of a device or system, to ensure that when one fails to perform the required function, another can perform the required function. 3.51 Reference codereference designation A distinguishing code used to identify items in schematics, lists, tables and electrical equipment. 3.52 Risk risk
The combination of the probability and degree of possible injury or harm to health in a dangerous state. [3.6 in GB/T15706.1-1995] 3.53 safe working procedure a method of operation that reduces risk.
3.54 safeguard
protective device a protective device or device used to protect personnel from existing or potential hazards. 3.55 safeguarding
GB 5226. 2--- 2002
safety measures that prevent personnel from being exposed to dangers constituted by the use of special devices called "safety guards" that cannot be reasonably eliminated or adequately limited by design. 3.56 servicing level a table where maintenance personnel usually stand when operating or servicing electrical equipment. 3.57 short circuit current an overcurrent caused by a short circuit caused by a fault in the circuit or a connection error. [GB/T2900.18.-1992 6.1.26] 3.58 (electrical) skilled person a person who has relevant knowledge and experience and can perceive electrical risks and avoid electrical hazards. [Exported from IEV826-09-01] 3.59 Standard hoisting machine Hoisting machine listed in the classification catalog by the supplier. 3.60 Supplier supplier
An entity (such as a manufacturer, contractor, installer, assembler) that provides electrical equipment or services related to hoisting machinery. Note: The user himself can also be a supplier
3.61 Switching device switching device used to connect or disconnect the current of one or several circuits. [3.1.7 in GB/T2900.18--1992]] Note: A switching device can complete one of the connection and disconnection actions or both. 3.62 Terminal terminal
The conductive part that provides electrical connection between the device and the external circuit. 3.63 Uncontrolled stop uncontrolled stop Stop the movement of the hoisting machinery by removing the power of the mechanical actuator, all brakes and/or other mechanical stop devices that produce action.
3.64 User
Entity that uses lifting machinery and its related electrical equipment. 4 Basic requirements
4.1 General principles
This standard applies to all kinds of lifting machinery and the electrical equipment of a group of lifting machinery working together. As part of the overall requirements for risk assessment of lifting machinery, the risks associated with the hazards of electrical equipment should be evaluated. This requires determining the acceptable level of risk and the necessary protection measures for people who may be exposed to danger under the condition that the performance of the lifting machinery and its electrical equipment is maintained at an acceptable level.
Hazards may be caused by the following reasons, but not limited to these: - Failure or malfunction of electrical equipment, resulting in the possibility of electric shock or electric fire; - Failure or malfunction of control circuits (or related components), resulting in malfunction of lifting machinery; - Power supply disturbance or failure, as well as malfunction of lifting machinery caused by failure or malfunction of power circuits; - Loss of circuit continuity maintained by sliding or rolling contact, resulting in failure of safety functions; - Electrical interference generated from outside or inside the electrical equipment (such as electromagnetic interference, electrostatic interference, radio frequency interference); -: Accumulated energy (electrical or mechanical); ...· Noise levels that endanger the health of personnel. Safety measures are comprehensive measures including those adopted in the design phase and those required to be implemented by the user. The design and development of lifting machinery should first consider risk reduction. If this is not enough, safety protection and safe working procedures should be considered. Safety protection includes the use of safety protection devices and reminders. In order to facilitate the agreement between users and suppliers based on the basic environment related to electrical equipment and the additional requirements of users, it is recommended to use the query table shown in Appendix A of this standard. These additional requirements include: 713
GB5226.2-2002
Additional points are proposed based on the type and purpose of the lifting machinery (or a group of lifting machinery); 1-facilitating maintenance and repair;
improving the reliability and simplicity of operation.
Note: Appendix A does not apply to standard lifting machinery; relevant information is provided to users in the supplier's sample. 4.2 Selection of electrical equipment
4.2.1 Overview
Electrical equipment and devices should be suitable for their intended use and should comply with the provisions of the current relevant national standards and IEC standards. 4.2.2 Selection of power contactors
Contactors with auxiliary short-circuit protection devices should be selected in accordance with the provisions of 7.2.5 of GB14048.4-1993. "2\ type coordination. Contactors that are started by the safety control circuit and complete the function of stopping the motion drive mechanism should be selected and coordinated with other equipment as follows to ensure that there is no contact adhesion or that even if the contact adhesion does not affect the emergency stop function. The supplier's suggestions can be adopted (see 7.2.9).
Note: For contactors that directly control motion and require high-frequency action, the recommended mechanical life is at least three million working cycles. (See item 30 in Appendix A and 5.3. in GB 14048.4-1993. 4.3). 4.3 Power supply
4.3.1 Overview
Electrical equipment should be designed to operate normally under the following power supply conditions (i.e. at the crane power switch, see Figure 3): - According to the power supply conditions specified in 4.3.2 or 4.3.3; as otherwise specified by the user, see Appendix A;
In the case of a dedicated power supply such as the on-board generator specified in 4.3.4, according to the supplier's specifications. 4.3.2 AC power supply
Voltage Steady-state voltage value: 0.9~1.1 times the rated voltage Note 1: For some equipment (such as large container cranes Crane), and through consultation with the user, the voltage range at the power supply point (i.e. the crane power switch, see Figure 3) can be reduced to 0.95~1.05 times the rated voltage. Frequency 0.99~1.01 times the rated frequency (continuous) 0.98~1.02 times the rated frequency (short-time operation) Note 2: The short-time working frequency value can be specified by the user, now Appendix A (prompt appendix). Harmonic The sum of 2nd to 5th distortion harmonics shall not exceed 10% of the root mean square value of the total line voltage. For the sum of 6th to 30th distortion harmonics, a maximum of 2% of the root mean square value of the total line voltage is allowed. Unbalanced voltage Neither the negative sequence nor the zero sequence components of the three-phase power supply voltage should exceed 2% of the positive sequence component. Voltage interruption At any time during the power cycle, the power interruption or zero voltage duration shall not exceed 3ms. The interval between successive interruptions shall be greater than 1s.
Note 3: For some variable frequency drives with power feedback, voltage interruptions of less than 3ms may also cause inrush current to pass and fuses to blow. Voltage drop The voltage drop should not exceed 20% of the peak power supply voltage for more than 1 cycle. The interval between successive drops shall be greater than 1s. 4.3.3 DC power supply
Powered by battery ：
Voltage: 0.85~~1.15 times rated voltage; 0.7~1.2 times rated voltage (for vehicles powered by battery packs). Voltage interruption time: no more than 5ms.
Powered by transducer device:
Voltage: 0.9~1.1 times rated voltage;
Voltage interruption time no more than 20ms, the interval between successive interruptions should be greater than 1.s; ---Ripple voltage (peak-to-peak value): no more than 0.15 times rated voltage. Note: In order to ensure the normal operation of electronic equipment, this item is changed according to IEC Guideline 106. 71459 Standard hoisting machine siandard hoisting machine Hoisting machine listed in the classification catalog by the supplier. 3.60 Supplier supplier an entity (such as manufacturer, contractor, installer, assembler) that provides electrical equipment or services related to hoisting machinery. Note: The user himself can also be a supplier. 3.61 Switching device a device used to connect or disconnect the current of one or several circuits. [3.1.7 in GB/T2900.18--1992] Note: A switching device can complete one of the actions of connection and disconnection or both. 3.62 Terminal terminal a conductive part that provides electrical connection between the device and the external circuit. 3.63 Uncontrolled stop uncontrolled stop stops the movement of the hoisting machinery by removing the power of the mechanical actuator, all brakes and/or other mechanical stop devices that produce action. 3.64 User user an entity that uses the hoisting machinery and its related electrical equipment. 4 Basic requirements
4.1 General principles
This standard applies to electrical equipment of various lifting machinery and a group of lifting machinery working together. As part of the overall requirements for risk assessment of lifting machinery, the risks associated with hazards of electrical equipment should be evaluated. This requires determining the acceptable risk level and the necessary protection measures for people who may be exposed to danger under the condition that the performance of the lifting machinery and its electrical equipment is maintained at an acceptable level.
Hazards may be caused by the following reasons, but not limited to these: - Failure or malfunction of electrical equipment, resulting in the possibility of electric shock or electric fire; - Failure or malfunction of control circuit (or its related components), resulting in malfunction of lifting machinery; - Power supply interference or failure, as well as malfunction of power circuit caused by failure or malfunction of power circuit; Loss of circuit continuity maintained by sliding or rolling contact, resulting in failure of safety functions; - Electrical interference generated from outside or inside the electrical equipment (such as electromagnetic interference, electrostatic interference, radio frequency interference); -: Accumulated energy (electrical or mechanical); ...· Noise level that endangers the health of people. Safety measures are comprehensive measures including measures adopted at the design stage and measures required to be implemented by users. The design and development of lifting machinery should first consider risk reduction. If this is not enough, safety protection and safe working procedures should be considered. Safety protection includes the use of safety protection devices and prompting means. In order to facilitate the agreement between users and suppliers based on the basic environment related to electrical equipment and the additional requirements of users, it is recommended to use the query table shown in Appendix A of this standard. These additional requirements include: 713
GB5226.2—2002
Additional points are proposed according to the type and purpose of the lifting machinery (or a group of lifting machinery); 1-facilitating maintenance and repair;
improving the reliability and simplicity of operation.
Note: Appendix A does not apply to standard lifting machinery; relevant information is provided to users in the supplier's sample. 4.2 Selection of electrical equipment
4.2.1 Overview
Electrical equipment and devices should be suitable for their intended use and should comply with the provisions of the current relevant national standards and IEC standards. 4.2.2 Selection of power contactors
Contactors with auxiliary short-circuit protection devices should be selected in accordance with the provisions of 7.2.5 of GB14048.4-1993. "2\ type coordination. Contactors that are started by the safety control circuit and complete the function of stopping the motion drive mechanism should be selected and coordinated with other equipment as follows to ensure that there is no contact adhesion or that even if the contact adhesion does not affect the emergency stop function. The supplier's suggestions can be adopted (see 7.2.9).
Note: For contactors that directly control motion and require high-frequency action, the recommended mechanical life is at least three million working cycles. (See item 30 in Appendix A and 5.3. in GB 14048.4-1993. 4.3). 4.3 Power supply
4.3.1 Overview
Electrical equipment should be designed to operate normally under the following power supply conditions (i.e. at the crane power switch, see Figure 3): - According to the power supply conditions specified in 4.3.2 or 4.3.3; as otherwise specified by the user, see Appendix A;
In the case of a dedicated power supply such as the on-board generator specified in 4.3.4, according to the supplier's specifications. 4.3.2 AC power supply
Voltage Steady-state voltage value: 0.9~1.1 times the rated voltage Note 1: For some equipment (such as large container cranes Crane), and through consultation with the user, the voltage range at the power supply point (i.e. the crane power switch, see Figure 3) can be reduced to 0.95~1.05 times the rated voltage. Frequency 0.99~1.01 times the rated frequency (continuous) 0.98~1.02 times the rated frequency (short-time operation) Note 2: The short-time working frequency value can be specified by the user, now Appendix A (prompt appendix). Harmonic The sum of 2nd to 5th distortion harmonics shall not exceed 10% of the root mean square value of the total line voltage. For the sum of 6th to 30th distortion harmonics, a maximum of 2% of the root mean square value of the total line voltage is allowed. Unbalanced voltage Neither the negative sequence nor the zero sequence components of the three-phase power supply voltage should exceed 2% of the positive sequence component. Voltage interruption At any time during the power cycle, the power interruption or zero voltage duration shall not exceed 3ms. The interval between successive interruptions shall be greater than 1s.
Note 3: For some variable frequency drives with power feedback, voltage interruptions of less than 3ms may also cause inrush current to pass and fuses to blow. Voltage drop The voltage drop should not exceed 20% of the peak power supply voltage for more than 1 cycle. The interval between successive drops shall be greater than 1s. 4.3.3 DC power supply
Powered by battery ：
Voltage: 0.85~~1.15 times rated voltage; 0.7~1.2 times rated voltage (for vehicles powered by battery packs). Voltage interruption time: no more than 5ms.
Powered by transducer device:
Voltage: 0.9~1.1 times rated voltage;
Voltage interruption time no more than 20ms, the interval between successive interruptions should be greater than 1.s; ---Ripple voltage (peak-to-peak value): no more than 0.15 times rated voltage. Note: In order to ensure the normal operation of electronic equipment, this item is changed according to IEC Guideline 106. 71459 Standard hoisting machine siandard hoisting machine Hoisting machine listed in the classification catalog by the supplier. 3.60 Supplier supplier an entity (such as manufacturer, contractor, installer, assembler) that provides electrical equipment or services related to hoisting machinery. Note: The user himself can also be a supplier. 3.61 Switching device a device used to connect or disconnect the current of one or several circuits. [3.1.7 in GB/T2900.18--1992] Note: A switching device can complete one of the actions of connection and disconnection or both. 3.62 Terminal terminal a conductive part that provides electrical connection between the device and the external circuit. 3.63 Uncontrolled stop uncontrolled stop stops the movement of the hoisting machinery by removing the power of the mechanical actuator, all brakes and/or other mechanical stop devices that produce action. 3.64 User user an entity that uses the hoisting machinery and its related electrical equipment. 4 Basic requirements
4.1 General principles
This standard applies to electrical equipment of various lifting machinery and a group of lifting machinery working together. As part of the overall requirements for risk assessment of lifting machinery, the risks associated with hazards of electrical equipment should be evaluated. This requires determining the acceptable risk level and the necessary protection measures for people who may be exposed to danger under the condition that the performance of the lifting machinery and its electrical equipment is maintained at an acceptable level.
Hazards may be caused by the following reasons, but not limited to these: - Failure or malfunction of electrical equipment, resulting in the possibility of electric shock or electric fire; - Failure or malfunction of control circuit (or its related components), resulting in malfunction of lifting machinery; - Power supply interference or failure, as well as malfunction of power circuit caused by failure or malfunction of power circuit; Loss of circuit continuity maintained by sliding or rolling contact, resulting in failure of safety functions; - Electrical interference generated from outside or inside the electrical equipment (such as electromagnetic interference, electrostatic interference, radio frequency interference); -: Accumulated energy (electrical or mechanical); ...· Noise level that endangers the health of people. Safety measures are comprehensive measures including measures adopted at the design stage and measures required to be implemented by users. The design and development of lifting machinery should first consider risk reduction. If this is not enough, safety protection and safe working procedures should be considered. Safety protection includes the use of safety protection devices and prompting means. In order to facilitate the agreement between users and suppliers based on the basic environment related to electrical equipment and the additional requirements of users, it is recommended to use the query table shown in Appendix A of this standard. These additional requirements include: 713
GB5226.2—2002
Additional points are proposed according to the type and purpose of the lifting machinery (or a group of lifting machinery); 1-facilitating maintenance and repair;
improving the reliability and simplicity of operation.
Note: Appendix A does not apply to standard lifting machinery; relevant information is provided to users in the supplier's sample. 4.2 Selection of electrical equipment
4.2.1 Overview
Electrical equipment and devices should be suitable for their intended use and should comply with the provisions of the current relevant national standards and IEC standards. 4.2.2 Selection of power contactors
Contactors with auxiliary short-circuit protection devices should be selected in accordance with the provisions of 7.2.5 of GB14048.4-1993. "2\ type coordination. Contactors that are started by the safety control circuit and complete the function of stopping the motion drive mechanism should be selected and coordinated with other equipment as follows to ensure that there is no contact adhesion or that even if the contact adhesion does not affect the emergency stop function. The supplier's suggestions can be adopted (see 7.2.9).
Note: For contactors that directly control motion and require high-frequency action, the recommended mechanical life is at least three million working cycles. (See item 30 in Appendix A and 5.3. in GB 14048.4-1993. 4.3). 4.3 Power supply
4.3.1 Overview
Electrical equipment should be designed to operate normally under the following power supply conditions (i.e. at the crane power switch, see Figure 3): - According to the power supply conditions specified in 4.3.2 or 4.3.3; as otherwise specified by the user, see Appendix A;
In the case of a dedicated power supply such as the on-board generator specified in 4.3.4, according to the supplier's specifications. 4.3.2 AC power supply
Voltage Steady-state voltage value: 0.9~1.1 times the rated voltage Note 1: For some equipment (such as large container cranes Crane), and through consultation with the user, the voltage range at the power supply point (i.e. the crane power switch, see Figure 3) can be reduced to 0.95~1.05 times the rated voltage. Frequency 0.99~1.01 times the rated frequency (continuous) 0.98~1.02 times the rated frequency (short-time operation) Note 2: The short-time working frequency value can be specified by the user, now Appendix A (prompt appendix). Harmonic The sum of 2nd to 5th distortion harmonics shall not exceed 10% of the root mean square value of the total line voltage. For the sum of 6th to 30th distortion harmonics, a maximum of 2% of the root mean square value of the total line voltage is allowed. Unbalanced voltage Neither the negative sequence nor the zero sequence components of the three-phase power supply voltage should exceed 2% of the positive sequence component. Voltage interruption At any time during the power cycle, the power interruption or zero voltage duration shall not exceed 3ms. The interval between successive interruptions shall be greater than 1s.
Note 3: For some variable frequency drives with power feedback, voltage interruptions of less than 3ms may also cause inrush current to pass and fuses to blow. Voltage drop The voltage drop should not exceed 20% of the peak power supply voltage for more than 1 cycle. The interval between successive drops shall be greater than 1s. 4.3.3 DC power supply
Powered by battery ：
Voltage: 0.85~~1.15 times rated voltage; 0.7~1.2 times rated voltage (for vehicles powered by battery packs). Voltage interruption time: no more than 5ms.
Powered by transducer device:
Voltage: 0.9~1.1 times rated voltage;
Voltage interruption time no more than 20ms, the interval between successive interruptions should be greater than 1.s; ---Ripple voltage (peak-to-peak value): no more than 0.15 times rated voltage. Note: In order to ensure the normal operation of electronic equipment, this item is changed according to IEC Guideline 106. 7141- General principles
This standard applies to electrical equipment of various lifting machinery and a group of lifting machinery working together. As part of the overall requirements for risk assessment of lifting machinery, the risks associated with hazards of electrical equipment should be evaluated. This requires determining the acceptable risk level and the necessary protection measures for people who may be exposed to hazards under the condition that the performance of the lifting machinery and its electrical equipment is maintained at an acceptable level.
Hazards may be caused by the following reasons, but not limited to these: - Failure or malfunction of electrical equipment, resulting in the possibility of electric shock or electric fire; - Failure or malfunction of control circuits (or components related to them), resulting in malfunction of lifting machinery; - Power supply interference or failure, as well as malfunction of power circuits caused by failure or malfunction of the power circuit; - Loss of circuit continuity maintained by sliding or rolling contact, resulting in failure of safety functions; - Electrical interference generated from outside or inside the electrical equipment (such as electromagnetic interference, electrostatic interference, radio frequency interference); -: Accumulated energy (electrical or mechanical); ...· Noise levels that endanger the health of people. Safety measures are comprehensive measures including measures adopted at the design stage and required to be implemented by users. The design and development of lifting machinery should first consider risk reduction. If this is not enough, safety protection and safe working procedures should be considered. Safety protection includes the use of safety protection devices and prompting means. In order to facilitate the agreement between users and suppliers based on the basic environment related to electrical equipment and the user's additional requirements, it is recommended to use the query table shown in Appendix A of this standard. These additional requirements include: 713
GB5226.2-2002
Additional points are proposed based on the type and purpose of the lifting machinery (or a group of lifting machinery); 1-Easy to maintain and repair;
Improve the reliability and simplicity of operation.
Note: Appendix A does not apply to standard lifting machinery; relevant information is provided to users in the supplier's sample. 4.2 Selection of electrical equipment
4.2.1 Overview
Electrical equipment and devices should be suitable for their intended use and should comply with the provisions of the current relevant national standards and IEC standards. 4.2.2 Selection of power contactors
Contactors with auxiliary short-circuit protection devices should be selected in accordance with the provisions of 7.2.5 of GB14048.4-1993. "2\ type coordination. Contactors that are started by the safety control circuit and complete the function of stopping the motion drive mechanism should be selected and coordinated with other equipment as follows to ensure that there is no contact adhesion or that even if the contact adhesion does not affect the emergency stop function. The supplier's suggestions can be adopted (see 7.2.9).
Note: For contactors that directly control motion and require high-frequency action, the recommended mechanical life is at least three million working cycles. (See item 30 in Appendix A and 5.3. in GB 14048.4-1993. 4.3). 4.3 Power supply
4.3.1 Overview
Electrical equipment should be designed to operate normally under the following power supply conditions (i.e. at the crane power switch, see Figure 3): - According to the power supply conditions specified in 4.3.2 or 4.3.3; as otherwise specified by the user, see Appendix A;
In the case of a dedicated power supply such as the on-board generator specified in 4.3.4, according to the supplier's specifications. 4.3.2 AC power supply
Voltage Steady-state voltage value: 0.9~1.1 times the rated voltage Note 1: For some equipment (such as large container cranes Crane), and through consultation with the user, the voltage range at the power supply point (i.e. the crane power switch, see Figure 3) can be reduced to 0.95~1.05 times the rated voltage. Frequency 0.99~1.01 times the rated frequency (continuous) 0.98~1.02 times the rated frequency (short-time operation) Note 2: The short-time working frequency value can be specified by the user, now Appendix A (prompt appendix). Harmonic The sum of 2nd to 5th distortion harmonics shall not exceed 10% of the root mean square value of the total line voltage. For the sum of 6th to 30th distortion harmonics, a maximum of 2% of the root mean square value of the total line voltage is allowed. Unbalanced voltage Neither the negative sequence nor the zero sequence components of the three-phase power supply voltage should exceed 2% of the positive sequence component. Voltage interruption At any time during the power cycle, the power interruption or zero voltage duration shall not exceed 3ms. The interval between successive interruptions shall be greater than 1s.
Note 3: For some variable frequency drives with power feedback, voltage interruptions of less than 3ms may also cause inrush current to pass and fuses to blow. Voltage drop The voltage drop should not exceed 20% of the peak power supply voltage for more than 1 cycle. The interval between successive drops shall be greater than 1s. 4.3.3 DC power supply
Powered by battery ：
Voltage: 0.85~~1.15 times rated voltage; 0.7~1.2 times rated voltage (for vehicles powered by battery packs). Voltage interruption time: no more than 5ms.
Powered by transducer device:
Voltage: 0.9~1.1 times rated voltage;
Voltage interruption time no more than 20ms, the interval between successive interruptions should be greater than 1.s; ---Ripple voltage (peak-to-peak value): no more than 0.15 times rated voltage. Note: In order to ensure the normal operation of electronic equipment, this item is changed according to IEC Guideline 106. 7141- General principles
This standard applies to electrical equipment of various lifting machinery and a group of lifting machinery working together. As part of the overall requirements for risk assessment of lifting machinery, the risks associated with hazards of electrical equipment should be evaluated. This requires determining the acceptable risk level and the necessary protection measures for people who may be exposed to hazards under the condition that the performance of the lifting machinery and its electrical equipment is maintained at an acceptable level.
Hazards may be caused by the following reasons, but not limited to these: - Failure or malfunction of electrical equipment, resulting in the possibility of electric shock or electric fire; - Failure or malfunction of control circuits (or components related to them), resulting in malfunction of lifting machinery; - Power supply interference or failure, as well as malfunction of power circuits caused by failure or malfunction of the power circuit; - Loss of circuit continuity maintained by sliding or rolling contact, resulting in failure of safety functions; - Electrical interference generated from outside or inside the electrical equipment (such as electromagnetic interference, electrostatic interference, radio frequency interference); -: Accumulated energy (electrical or mechanical); ...· Noise levels that endanger the health of people. Safety measures are comprehensive measures including measures adopted at the design stage and required to be implemented by users. The design and development of lifting machinery should first consider risk reduction. If this is not enough, safety protection and safe working procedures should be considered. Safety protection includes the use of safety protection devices and prompting means. In order to facilitate the agreement between users and suppliers based on the basic environment related to electrical equipment and the user's additional requirements, it is recommended to use the query table shown in Appendix A of this standard. These additional requirements include: 713
GB5226.2-2002
Additional points are proposed based on the type and purpose of the lifting machinery (or a group of lifting machinery); 1-Easy to maintain and repair;
Improve the reliability and simplicity of operation.
Note: Appendix A does not apply to standard lifting machinery; relevant information is provided to users in the supplier's sample. 4.2 Selection of electrical equipment
4.2.1 Overview
Electrical equipment and devices should be suitable for their intended use and should comply with the provisions of the current relevant national standards and IEC standards. 4.2.2 Selection of power contactors
Contactors with auxiliary short-circuit protection devices should be selected in accordance with the provisions of 7.2.5 of GB14048.4-1993. "2\ type coordination. Contactors that are started by the safety control circuit and complete the function of stopping the motion drive mechanism should be selected and coordinated with other equipment as follows to ensure that there is no contact adhesion or that even if the contact adhesion does not affect the emergency stop function. The supplier's suggestions can be adopted (see 7.2.9).
Note: For contactors that directly control motion and require high-frequency action, the recommended mechanical life is at least three million working cycles. (See item 30 in Appendix A and 5.3. in GB 14048.4-1993. 4.3). 4.3 Power supply
4.3.1 Overview
Electrical equipment should be designed to operate normally under the following power supply conditions (i.e. at the crane power switch, see Figure 3): - According to the power supply conditions specified in 4.3.2 or 4.3.3; as otherwise specified by the user, see Appendix A;
In the case of a dedicated power supply such as the on-board generator specified in 4.3.4, according to the supplier's specifications. 4.3.2 AC power supply
Voltage Steady-state voltage value: 0.9~1.1 times the rated voltage Note 1: For some equipment (such as large container cranes Crane), and through consultation with the user, the voltage range at the power supply point (i.e. the crane power switch, see Figure 3) can be reduced to 0.95~1.05 times the rated voltage. Frequency 0.99~1.01 times the rated frequency (continuous) 0.98~1.02 times the rated frequency (short-time operation) Note 2: The short-time working frequency value can be specified by the user, now Appendix A (prompt appendix). Harmonic The sum of 2nd to 5th distortion harmonics shall not exceed 10% of the root mean square value of the total line voltage. For the sum of 6th to 30th distortion harmonics, a maximum of 2% of the root mean square value of the total line voltage is allowed. Unbalanced voltage Neither the negative sequence nor the zero sequence components of the three-phase power supply voltage should exceed 2% of the positive sequence component. Voltage interruption At any time during the power cycle, the power interruption or zero voltage duration shall not exceed 3ms. The interval between successive interruptions shall be greater than 1s.
Note 3: For some variable frequency drives with power feedback, voltage interruptions of less than 3ms may also cause inrush current to pass and fuses to blow. Voltage drop The voltage drop should not exceed 20% of the peak power supply voltage for more than 1 cycle. The interval between successive drops shall be greater than 1s. 4.3.3 DC power supply
Powered by battery ：
Voltage: 0.85~~1.15 times rated voltage; 0.7~1.2 times rated voltage (for vehicles powered by battery packs). Voltage interruption time: no more than 5ms.
Powered by transducer device:
Voltage: 0.9~1.1 times rated voltage;
Voltage interruption time no more than 20ms, the interval between successive interruptions should be greater than 1.s; ---Ripple voltage (peak-to-peak value): no more than 0.15 times rated voltage. Note: In order to ensure the normal operation of electronic equipment, this item is changed according to IEC Guideline 106. 714
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