GB 15760-2004 General technical requirements for safety protection of metal cutting machine tools
Some standard content:
ICS25.060
National Standard of the People's Republic of China
GB157602004
Replaces GB757601995
Metal-cutting machine tools
General technical conditions for safety protection
Metal-cutting machine tools-General safeguarding specification2004-09-17 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of the People's Republic of China
2005-07-01 Implementation
GB 15760---2004
Chapter 4, 5.3.6, 5.5.1 (f), 5.7, 5.9, 5.10, 5.11.1, 5.11.4, 5.12 (except 5.12.3.2), 5.17, 5.18, 5.19.1.5.19.2 of this standard are recommended. The rest are mandatory. This standard replaces GB15760-1995 "General Technical Conditions for Safety Protection of Metal Cutting Machine Tools". From the date of implementation of this standard, GB15760-1995 shall be used as the standard.
Compared with GB 15760-1995, the main changes of this standard are as follows: the arrangement order is adjusted, and the arrangement is carried out in accordance with the provisions of GB/T16755-1997 "Rules for the drafting and expression of safety standards for machinery safety";
The scope of use is expanded, and the accessories of the machine are included (Chapter 1 of the 1995 edition, Chapter 2 of this edition); - A chapter on "Hazards of the Machine" is added (see Chapter 4); - Abnormal temperature, vibration, radiation, substances and materials, ergonomics, assembly errors, measurement, adjustment, cleaning and maintenance are added (see 5.7, 5.9, 5.0, 5.11, 5.12, 5.14, 5.15). 20);-- Added the function and category requirements of the safety part of the control system (see 5.4.2);- Added the installation height limit of the button station and the display (see 5.12.2.3.2, 5.12.3.1.2);- Added the storage content (see 5.19.2); Added the fraud verification content (see Chapter 5):
… Added the "Usage Information" chapter (see Chapter 6); Added "References",
A pair of "electrical system" was specified: (8.1 of the 1995 edition, 5.3 of this edition)-- Cancelled = When the machine tool stops, the stop of the independent feed drive should not retreat to the stop of the main motion" (1995 edition 5.2.6) of the 1995 edition) cancels Appendix A (Appendix A of the 1995 edition). From July 1, 2005, new products designed and produced by manufacturers shall comply with this national standard. The expiration period for old products designed and produced before July 1, 2005 is 12 months. From July 1, 2006, products that do not comply with this national standard will no longer be sold on the market: This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Technical Committee for Standardization of Metal Cutting Machine Tools (SATC22). The drafting unit of this standard: Beijing Machine Tool Research Institute. The main drafters of this standard: Zhang Wei, Li Zewen, Xu Guangwu. The previous versions of the standard replaced by this standard are: GB 15760--1995.
1 Scope
General technical conditions for safety protection of metal cutting machine tools GB 15760--2004
This standard specifies the basic safety protection technical requirements and measures and verification methods for the main hazards of metal cutting machine tools (hereinafter referred to as machine tools) and machine tool accessories. This standard applies to all machine tools and machine tool accessories. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all referenced documents with a specified period, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, all parties that reach an agreement based on this standard are encouraged to Study whether the latest versions of these documents can be used. For any undated referenced documents, the latest versions shall apply to this standard. G3/1191 Pictorial signs for packaging, storage and transportation (GB/T191-2000, eVSC)780:1997) GB1251.1 Hazard signals for workplaces - Auditory signals for hazards (GB1251.1-[989, qvISO7731:1986) GB1251.2 Human ergonomics - Visual signals for hazards - General requirements for design and inspection (GB12512--1996, VIS()/DIS GB1251.3 Ergonomics hazardous and non-hazardous sound and light signal system (GB1251.31996, eqVIS0/DIS11429: 1992) GB2893 Safety colors (GB2893.2001) GB2894 Safety signs (GB2894-1996-neqISO3864: 1984) GB/T3167 Metallic machine tool operation indication graphic symbols (GB/T3157-1993, neqISO7000: 1984) ）GB/T3168 Graphic symbols for digital control machine tool operation instructions (GR/T3!68--1993, ne9IS0) 2972: 1979) GB5226.1-2002 Mechanical safety Mechanical electrical equipment Part 1: General technical conditions (idt1FC60204-1: 2000) GH/T6576 Machine ball lubrication system (GB/T6576-2002, ISO5170: 1977, MOD) Safety of laser products Part 1: Equipment classification, requirements and user guide (GB7247.1-2001, idtIECG 7247.1
60825：1993)
GB/T7932 General technical requirements for pneumatic systems (G3/T 7932--2003/ISO 4414:1998, ISO 4414:1998, IDT) GB/T 8196
General requirements for the design and manufacture of fixed and movable protective devices for mechanical safety guards (GH/T 81962003, ISO 14120:2002.M(D)CB 9969.1
Industrial product instruction manual (GB9969.11998) GB12265.1 Mechanical safety
Safety distance to prevent upper limbs from touching dangerous areas (GB12265.1--1997, eQVEN2491992)
GB12265.2
Mechanical safety
Safety distance to prevent lower limbs from touching dangerous areas (GB12265.2-2000eqEN811GB 12265.3
Safety of machinery
Minimum distance to avoid squeezing of various parts of the human body (GB12265.31997.eqVEN349:1993)
GB/T13370 Principles of visual ergonomics - Lighting of indoor work systems (GB/13379-1992, ne41SO8995:1989) G13/T14775 Manipulators - General human ergonomic requirements (GH/T14775-1993) GB/T14775 Human ergonomics - Design principles and values of job dimensions (GB/T14776-1993) GB/T15241.2 Ergonomic principles related to mental load - Part 2: Design principles (GB/T15241.2-1999id1 IS0 10075 2:1996)
GB 15760-2004Www.bzxZ.net
GB/T15706.1-1995 Basic concepts and general principles for mechanical safety Part 1: Basic techniques and methodology (egVISO/TR 12100-1:1992)
GB/T15706.2-1995 Basic concepts and general principles for mechanical safety Part 2: Technical principles and specifications (egVISO/TR 12100-2: 1992)
GB/T16251 Ergonomic principles for work system design (GB/T1(251--1996, eVTSO6385:1981) GB16754 Design principles for emergency stop of mechanical safety (GB16754-1997, e0VISO/IEC13850:1995) GB/I16769 Measurement method for sound pressure level of noise of metal cutting machine tools (GR/T1$769--1997) GB/T16855.1-1937 Safety control systems for machinery - Part 1, General principles for design (GB/T 16855.1:1997, e0V prFN 954-1:1994) GB/T 16856
GR/T 17161
Principles of risk assessment for machinery safety (GB/116856-1997, eqprEN1050-12:1594) Operating direction of machine tool control devices (GB/T17161-1997.eVISO447:1984) GB/T 1.7454.1 Safety of machinery - Pressure-sensitive protective devices - Part 1: General rules for the design and testing of pressure-sensitive mats and pressure-sensitive floors (GB/r 17454.1-1998, neq prEV 1760 -1:1994) GB17888.1 Safety of machinery - Fixed facilities for access to machinery and industrial equipment - Part 1: Selection of fixed facilities for access between two levels (GB17888.1-1999, ISO/DIS14122-1:1996) Safety of machinery - Fixed facilities for access to machinery and industrial equipment - Part 2: Working platforms and passages GR 17888. 2
(GB 17888. 2--1999,eqv IS0/DIS 14122-2: 1996) GB17888.3
Safety of machinery - Fixed facilities for access to machinery and industrial equipment - Part 3: Stairs, steps and guardrails (GB 17888. 3-1999,eqv ISO/DIS 14122-3,1996)GB17888.4 Machinery safety - Fixed facilities for access to machines and industrial equipment - Part 4: Fixed ladders (GB17888.41999,cqv IS0/DIS 14122-4:1996) Machinery safety - Accessible surface temperature - Ergonomic data for determining hot surface temperature limits (GB/T78153-GB/F 18153
2000,eqvEN563:1994)
Machinery safety - Instructions, signs and operations - Part 1: Requirements for visual, audible and tactile signals GB 18205. 1
(GI 18209. I—2000,idt IrC 61310-1:1995) GB 18209.2#
Safety of machinery - Instructions, marking and operation - Part 2: Requirements for marking (GB 18209.2 2000, idt IEC 61310-2: 1995)
GR 18209.3 2002 Safety of machinery - Instructions, marking and operation - Part 3: Requirements for the location and operation of operating parts (GB 18209.3 -- 2002, idt IEC 61310-3.1999)GB/T 18569.1 Safety of machinery - Reduction of risks to health from hazardous substances emitted by machinery - Part 1: Principles and specifications for machinery manufacturers (GB/T 185691-2001, eV1S014123-1: 1998)GB/T 18569.2 Safety of machinery - Reduction of risks to health from hazardous substances emitted by machinery - Part 2: Methodology for generating verification procedures (GR/T 18569.2—2001, eqISO 14123-2, 1998) Ergonomic design for machinery safety Part 1: Principles for determining the size of openings for full body access to machinery GB/T 18717.1
(GB/T 18717.1-2002,neg ISO 15534-1:2000) Ergonomic design for machinery safety Part 2: Determination of the size of openings for partial human access to machinery GB/T 18717. 2
original (GB/F 18717.2—2092,neg ISO 15534-2:2000) GB/T 18717.3
Ergonomic design for machinery safety Part 3: Principles for determining the size of openings for partial human access to machinery (GB/T 18717.3-2002,neg ISO 15534-2:2000) 15534-1.2000)
Interlocking device of mechanical safety belt guard G13/T 18831
Design and selection principles (GB/T18831-2002.1SO14119:1998,M0D)
General requirements for human-machine interface of information display device (JB/T5062:-1991)JB/T 5062
J3/T8356.1 Technical conditions for machine tool packaging (JB/T8356.1996) JB/T8356.2 Machine tool packaging box (JB/T8356.2-1996) JB/T8356.3 Medium and small wooden boxes for machine tool packaging (JB/T8356.3-1996) JB/T9878 Determination of dust concentration in metal cutting machine tools (JB/T9878-1999) JB/T9879 Measurement method for dust concentration in metal cutting machine tools (JB/T9879-1999) J3/T10051 General technical conditions for pressure systems of metal cutting machine tools (JB/T10051-1999) 3 Terms and definitions
The terms and definitions established in GB/F15706.11995 and the following terms and definitions apply to this standard. 3.1
Safety of machine tools GB15760--2004
The machine tool shall perform its functions under the intended use conditions (or within a given period) specified in the instructions and shall not cause injury to personnel or health or damage to equipment during selection, installation, adjustment, maintenance, disassembly and handling. Note: Intended use refers to the use of the machine tool according to the information provided by the manufacturer. The intended use shall be consistent with the instructions in the description section, and due consideration shall be given to foreseeable misuse;
machine tools dangermachine tools dangerWhen the machine tool is stationary or running, it may cause injury to personnel or endanger health and damage to equipment. 3.3
riskrisk
In a dangerous state, the probability and degree of injury or health damage are summarized, [GB/T 15706. 1 1995 3. 7]3.4
machine tools dangerzuneThe area where personnel may be injured or equipment may be damaged when the machine tool is stationary or running. 3.5
machining areamachining area
The area where the tool on the machine tool cuts the workpiece, 3.6
working areaworking area
The area that may occur during the work process, including the positions required for the moving parts of the machine tool, the positions required for loading and unloading, and the positions required for operating, adjusting and maintaining the machine tool.
guard
The part of a machine tool that is specially used to provide protection against expansion by means of physical obstacles. Depending on its structure, the guard may be a shell, cover, screen, door, closed protective pipe, etc.,
[GB/T 15706. 1 ---1995 + 3. 22]3.8
Safety devicesafety device
A single device or a device used in conjunction with a guard (not a guard) to eliminate or reduce risk. [GB/T 16706. 1-.-1995 3. 23_3. 9
Information for use
A safety device composed of various communication links, such as text, signs, signals, symbols or diagrams, which can be used alone or in combination to transmit information between users to guide professional and (or) professional users. GB/I15706.1:1995 3.20]
Operator
A person who installs, uses, adjusts, maintains, cleans, repairs or transports a machine tool. GB/T 15706.1-1995 3.21]4 Hazards of machine tools
4.1 Hazard analysis and risk assessment of machine tools shall be conducted in accordance with Chapter 5 and Chapter 6 of GB/T 15706.1-1995 and the relevant provisions of GB/T16856, and the hazards existing in machine tools shall be identified and evaluated. Note: For hazards not covered by this standard, measures shall be taken in accordance with the relevant provisions of GB/T 15706.2-1995. 4.2 In the hazard analysis, special attention shall be paid to the hazards to operators and other personnel due to foreseeable misuse (see GB/T15706.1-1995 3.12). Including: during the use of the machine tool; during the adjustment, cleaning and maintenance of the machine tool.
4.3 The main hazards of machine tools are shown in Table 1. Table 1 Hazard list
GB/T 15706.1
Mechanical hazards (caused by):
Shape;
Relative position
Mass and stability (position
Mass and speed (kinetic energy):
\\-Insufficient mechanical strength;
Position energy concentration:
-Elastic element:
. Fluid or
Gas under pressure;
Crushing hazard
Shearing hazard
Cutting or shearing hazard
Entanglement hazard
Suction or entrainment hazard
Impact hazard
4. 2. 1. 4. 2. 2
4. 2. 1 + 4. 2. 3
4. 2. 1. 4.2.2
4. 2. 1, 4. 2. 2
Related clauses and sections of GB/T 15706,2
3.2, 4. 1. 1
3. 11,4. 2, 1,6. 1,. 2
Related standards
GR 12265.3
Related clauses and sections of safety requirements and measures in the standards
5. 2. 3. 2.5. 2. 4. 5,
5. 2. 3. 2, 5. 5. 1
3. 2, 2.1.5, 2.2.3,
5. 2. 3. 3,5. 2.3. 4.
Hazard of stabbing or piercing
Hazard of chemical or abrasion
Hazard of ejection of pressurized fluid
Hazard of ejection of machine tool parts/workpieces from the cabin
Hazard of loss of stability
Hazard of slipping, falling and tipping (related to machine tools)
|Electrical hazard
Direct electric shock (under normal operating voltage: direct contact with live parts)
Indirect electric shock (due to insulation failure, indirect contact with live parts)
|Improper insulation
Heat hazard
Burns and scalds caused by heat contact and radiation from heat sources
Health effects of internal overheating or overcooling
Noise hazard
Hearing loss or other physiological disorders
Interference with language and external communication signals
Vibration hazard (causing various mental illnesses, etc.) Radiation hazard
Highly ionized radiation sources
High and low frequency electromagnetic fields
Table (continued)
CH/T 1570G, 1
Related chapters and clauses
GL/T 15706. 2
Related chapters and clauses
3.3,5.2.5
Related standards
GB/T7932
3B/110051
GR 17888. 1---
GB 5226.12002
GB 5226.1—2002
GB 5226. 1
—2002
GE/T 18153
GB/T 16769
GR 5226.1-2002
GB 7247. 1
GB 5226.I-2002
GR 5226.1—2002
:comGB 15760—2004
Safety requirements and measures: Relevant clauses in the standard
5. 2. 2. 1,5. 2. 2. 3.
5.2.3.4.5.15.3
5,4. 10,5. 15,
5. 2. 3. 5, 5.2.4,
5.4. 10, 5.5. 1
5, 2. 1+5. 2. 5,5. 19
: 5, 2. 2, 2,5. 2, 9. 1,
5. 11. 5,5. 15.
5. 3. 1, 5. 3. 5
GB 15760-2004
Serial number:
Hazards of dust generation by substances and materials
Contact with harmful liquids, gases,
oil, mold and dust, etc.
7.2: Fire and explosion
7.3 Hazards of organisms and microorganisms
: Hazards caused by ignoring ergonomics in design
Unhealthy postures or exertion
Not taking into account the risk of damage to the human body, hands, kidneys or legs||t t||Structural requirements
Neglecting the use of personal protective equipment
Improper area lighting
Excessive mental stress or lack of preparation, etc.
Human error
Energy supply interruption, mechanical parts damage
and other functional disturbances or dangers
Energy failure of machine tools or control systems
Accidental use of machine tool parts/workpieces, accidental ejection of pressurized fluid or gas
9. 3 Control system failure or malfunction
Table {(continued)
GB/T 13706, 1
.--1993
Related clauses
3, 1. 5, 3, 1. 6,
GB/T 15706. 2
Related clauses
3. . 1, 3. 6. 4
Difference standard
G3/T 18569. 1
Gr/T 1856S. 2
JE/T 9878
JB/T 9879
GE/T 14775
GB/T 14776
GB/T 16251
GR/T 18717. 1--
JB/T5062
GB 5226. 1---2002
GB/T13379
GB/T 15241, : —1057
Safety requirements and relevant clauses in the standards
5, 10.2. 5, 12.1
5. 12. 2. 1
5, 2, 3. 5.
5. 2, 4.5. 4. 10.
6.5, 1, 5. 15.
GB 5226. 1 - 2092: 5. 2. 3.7.GB/T 16855.1--19975.2.4.5, 5.4,1C...........
Assembly error
Tilt, bed stability accidental gear loss
Safety measures error, safety device installation
Incorrect or incorrect positioning
Protective cover
Safety (protective) device
Start and stop device
Safety signal and signal device
Information and alarm device
10.6 Energy supply cut-off device
10.7 Emergency stop device
Loading and unloading cover
10.9 Main equipment and accessories for safety adjustment and/or maintenance
10.10 Exhaust device
Safety requirements and measures and verification methods
5.1 General requirements
Table 1 (continued)
GH/T 157C6.1
3. 3,3. 11
GB/R 157C6.2
-··1935
3. 6. 7. 5. 2.
3.3,5.4
3. 12,6. 2. 1.
6. 2. 3,6. 2. 6
5.1.1 All potential hazards should be eliminated or minimized as far as possible through design. JB/T 6356. 1~.
GB 5226. 1—2002
GB/T 17454,1
GH/7 18831
GB 5226.1 2002
GH2893
GB2894
GB 18209. 2
G 1251. 1
GH 1251. 2
GE 5226, 1 — 2002 | | tt | 5226.—2002
GR16754
GB 15760--2004
Safety requirements and measures in the relevant chapters and clauses of the standard
5.2.1, 5.2.5,
5.5, 1, 5.5.2
5.5.1.5.5.3
5.1.4,5.4.5
5.2.4.7
5.1.2 For hazards that cannot be avoided or adequately limited by design, necessary safety protection devices (protective devices, safety devices) should be taken. GB 15760—2004
5.1.3 For residual hazards that cannot be eliminated or reduced by design and for which safety protection devices are ineffective or incompletely effective, information should be used to inform and warn the operator.
5.2 Machine tool structure
5.2, 1 Stability
The shape and layout of the machine tool should ensure sufficient stability. When the machine tool is used (under the intended conditions of use specified in the instructions), there should be no risk of accidental overturning, falling or moving. When the shape of the machine tool cannot ensure sufficient stability, certain measures should be specified in the instructions.
Verification: Visual inspection and/or inspection information
5.2.2 Appearance
5.2.2.1 The exposed parts that come into contact with the machine should not have sharp edges, points and openings that may cause personal injury. Verification: Visual inspection and/or inspection information,
5.2.2.2 The layout and arrangement of various pipelines of the machine tool should be reasonable , no obstacles, to prevent the danger of falling, etc., verification: visual inspection and/or inspection information.
5.2.2.3 Safety measures should be taken for the protruding parts, moving parts, and separated parts of the machine tool to prevent the danger of bumping, collision, scratching, and brushing. Verification: visual inspection or inspection information
5.2.3 Moving parts
5.2.3.1 Moving parts and transmission devices (such as chains, sprockets, gears, racks, pulleys, belts, worm wheels, worms, shafts, screws, chip removal devices, etc.) that may cause dangers such as entanglement, suction or rolling should be enclosed or equipped with safety guards, or use information: unless they are in a safe position.
Verification, visual inspection and/or inspection information
5.2.3.2 There should be no extrusion danger and/or shearing danger between moving parts or between moving parts and stationary parts, otherwise safety measures should be taken in accordance with the relevant provisions of GB12265.3. Verify and check drawings, visual inspection and/or inspection information. 5.2.3.3 Reliable limit devices should be set for mechanical reciprocating parts with inertial impact, and reliable buffering measures can be taken when necessary. When it is difficult to set the limit device, necessary safety measures should be taken. Verify: visual inspection and/or inspection information.
5.2.3.4 Overload safety devices should be set for moving parts that may be damaged due to overload. When it cannot be set due to structural reasons, the extreme use conditions of the machine tool should be indicated in the machine tool 1 or in the manual. Verify: check drawings, visual inspection or inspection information. 5.2.3.5 Anti-loosening devices should be set for moving parts and components that may loosen. Verify: check drawings and/or visual inspection.
5.2.3.6 For parts that rotate in one direction, the position should be marked and the direction of rotation should be marked. Verify: visual inspection.
5.2.3.7 In case of emergency stop or power system failure, the moving parts shall stop on the spot or return to the position specified in the design. The sinking of vertical or inclined moving parts shall not cause danger. Verification: visual inspection,
5.2.3.8 When the moving parts are not allowed to move simultaneously, their control mechanisms shall be interlocked. If interlocking cannot be achieved, a warning sign shall be set near the control mechanism, which shall not be stated in the instructions. Verification: visual inspection and/or inspection information.
5.2.4 Clamping device
5.2.4.1 The holding device shall ensure that the parts, knives and other parts will not fall or be used. If necessary, the maximum safe speed of the clamping device supplied with the machine shall be specified in the manual. Verification: inspection and/or inspection information. 5.2.4.2 Manual clamping device GB 15760—2004 Safety measures shall be taken for manual clamping devices to prevent accidental dangers, such as keys or wrenches remaining on the clamping device while the machine tool is running. Verification: functional inspection and/or inspection information. 5.2.4.3 Powered clamping device a) The start of machine tool operation shall be linked to the end of the clamping process of the powered clamping device; b) The release of the powered clamping device shall be interlocked with the end of the machine operation; e) For machine tools equipped with automatic loading and unloading devices, the spindle is allowed to rotate during loading and unloading, but the danger of the workpiece being thrown out shall be prevented. Verification; functional inspection.
5.2.4.4 Electromagnetic chuck
a) The protection level of its shell shall not be less than IP54, and its protective grounding shall comply with the relevant provisions of 8.2 of GB5226.1-2002: b) It shall comply with the provisions of 5.2.4.3.
Verification: Check the circuit diagram, visual inspection, functional inspection and/or inspection information. 5.2.4.5 When manually raising and lowering workpieces and tools, safety measures shall be taken to prevent the danger of squeezing fingers. Verification: Visual inspection and/or inspection information.
5.2.4.6 In the event of emergency stop or power system failure, the motorized clamping device or electromagnetic chuck shall take safety measures to prevent danger.
Verification: Visual inspection or inspection information.
5.2.4.7 When using pneumatic holding devices, avoid blowing chips and dust toward the operator. Verification: Visual inspection and/or inspection information.
5.2.5 Balancing device
5.2.5.1 Counterweights that are dangerous and related to machine tool parts and their movements should be equipped with comprehensive safety protection measures (such as placing them inside the machine tool body or using them in fixed protective devices, etc.), and should prevent the danger caused by the breakage of parts in the counterweight system. Verification: visual inspection, inspection information.
5.2.5.2 When a dynamic balancing device is used, the machine tool parts should be prevented from falling when the power system fails. Verification: visual inspection, inspection information.
5. 2. 6 Automatic loading and unloading device
When an automatic loading and unloading device is used, a fixed protective device, an interlocking movable protective device, or a warning sign should be installed. Verification: visual inspection and/or inspection information.
5.2.7 Tool magazine, tool changer
When using a power magazine and tool changer, fixed protective devices or interlocked movable protective devices or warning signs should be installed. In addition to the safe location,
Verification: visual inspection and/or inspection information.
5,2.8 Shoulder removal device
The chip removal device should not pose a danger to the operator. If necessary, it can be interlocked with the opening of the anti-expansion device to stop the operation of the machine tool. Verification: visual inspection and/or inspection information.
5.2.9 Working platform, passage, opening
5.2.9.1 For machine tools that cannot be operated on the ground, steel ladders and working platforms should be installed. The platform and passage should be anti-slip and anti-fall, and the operator should not be close to the dangerous area of the machine tool as much as possible. Pedals and railings can be installed when necessary. Steel ladders, railings and platforms should comply with the relevant provisions of CB17888.1~17888.4.
Verification: Visual inspection and/or check information.
5.2.9.2 According to the operation requirements, the machine tool can be equipped with parallel ports for entry and exit: the size of the opening should comply with the relevant provisions of GB/T18717.1--18717.3.
Verification: Real.
GB 15760--2004
5.3 Electrical system
5.3.1 Melting electricity
To prevent the risk of electric shock, the protection of electrical equipment shall comply with the following provisions: a) The protection of live parts shall comply with the relevant provisions of Chapter 6 of GB5226.1-20021b) The insulation protection of electrical equipment shall comply with the relevant provisions of 6.2.3.6.3.2.2.13.3 of GB5226.1-2002; c) The protective grounding of electrical equipment shall comply with 8.2, 14.1, 14.2. Verification: visual inspection, protective earthing continuity test, insulation resistance test, withstand voltage test. 5.3.2 Protection
To prevent unexpected dangers, the protection of electrical equipment shall comply with the following provisions: a) The protection of electrical equipment against overcurrent shall comply with the relevant provisions of 7.2 in GB5226.1-2002; b) The protection of motor overload shall comply with the relevant provisions of 7.3 in GB5226.1-2002; c) The protection of motor overspeed shall comply with the relevant provisions of 7.6 in GB5226.1-2002; t) The protection against voltage fluctuation and power interruption shall comply with the relevant provisions of 7.5 and 7.9 in GB5226.1-2002; e) The protection against ground fault (or residual current) shall comply with the relevant provisions of 7.7 in GB5226.1-2002. Verification: Visual inspection, check the technical documents for residual voltage test, 5.3.3 Wires, cables and wiring
The wiring and cable distribution of the electrical system shall comply with the following provisions: a) Wires and cables shall comply with the relevant provisions of Chapter 13 of GR5226.1~2002: b) Wiring shall comply with the relevant provisions of Chapter 11 of GB5226.12002. Verification: Visual inspection.
5.3.4 Motors
The motors shall comply with the relevant provisions of Chapter 15 of GB5226.12002, Verification: Visual inspection.
5.3.5 Static electricity
Electrical equipment shall prevent or limit static electricity discharge, and discharge devices may be installed when necessary. Verification: Visual inspection.
5.3.6 Electromagnetic compatibility
The electromagnetic compatibility of electrical equipment should comply with the relevant provisions of 4.4.2 of GB5226.1-2002. Verification, the supplier shall provide corresponding certificates or tests. 5.4 Control system
5.4.1 General requirements
In addition to complying with the provisions of 5.4.2 to 5.4.10 of this standard, it shall also comply with the relevant provisions of Chapter 5, Chapter 9, Chapter 10 and Chapter 12 of GB5226.1-2002, 3.7, 3.10 of GB/T 15706.2-1995 and GB/T 16855.1-1997. Verification: Check electrical samples, visual inspection, functional inspection and/or inspection information. 5.4.2 Safety and reliability of control system
The relevant safety part of the control system refers to the detection position from the ultimate control device or input point of the entire system to the final operation mechanism or component (such as motor) of the machine tool.
The control system shall ensure that its functions are safe and reliable. The control system shall be able to withstand the expected workload, external influences, and logical errors (excluding operating procedures).
The functions and categories of the relevant safety parts of the control system (Chapter 7 of G/T16855.1-1997) shall comply with the provisions of Table 2.
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