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GB 5959.5-2014: Safety in electroheat installations -- Part 5: Specifications for safety in plasma installations
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Safety in electroheat installations -- Part 5: Specifications for safety in plasma installations
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| GB 5959.5-1991 | English | 279 |
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Safety in electroheat installations--Part 5: Specifications for safety in plasma installations
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Basic data | Standard ID | GB 5959.5-2014 (GB5959.5-2014) | | Description (Translated English) | Safety in electroheat installations -- Part 5: Specifications for safety in plasma installations | | Sector / Industry | National Standard | | Classification of Chinese Standard | K61 | | Classification of International Standard | 25.180.10 | | Word Count Estimation | 16,187 | | Date of Issue | 12/5/2014 | | Date of Implementation | 11/5/2015 | | Older Standard (superseded by this standard) | GB 5959.5-1991 | | Quoted Standard | GB/T 2900.23-2008; GB 4824-2004; GB 5959.1-2005; GB/T 10066.5-2014 | | Regulation (derived from) | Announcement of Newly Approved National Standards 2014 No. 27 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Standard applies to: a) thermal plasma torch systems: arc plasma system; induction plasma system. b) using a plasma torch system means | GB 5959.5-2014: Safety in electroheat installations -- Part 5: Specifications for safety in plasma installations
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Safety in electroheat installations - Part 5. Specifications for safety in plasma installations
ICS 25.180.10
K61
National Standards of People's Republic of China
Replacing GB 5959.5-1991
Electric safety device
Part 5. Particular requirements for plasma unit
Safetyinelectroheatinstalations-Part 5. Particular
Issued on. 2014-12-05
2015-11-05 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
Safety requirements for thermal plasma system --- 4 design and characteristics of the device 1
4.1 arc plasma torch system
4.1.1 General requirements 1
4.1.2 Circuit 1
4.1.3 DC arc power supply 2
4.1.4 torch sockets, plugs and connection cables 2
4.1.5 Torch 2
4.1.6 cooling circuit 2
4.1.7 manifold 3
4.1.8 squib 3
4.1.9 arc plasma system control 3
4.2 induction plasma system 3
4.2.1 General requirements 3
4.2.2 Circuit 4
4.2.3 Power 4
4.2.4 torch sockets, plugs and connecting cables 4
4.2.5 torch 4
4.2.6 cooling circuit 4
4.2.7 manifold 5
4.2.8 squib 5
4.2.9 Induction plasma system control 5
Safety requirements 5 using a plasma torch apparatus --- the design and characteristics of the device 6
5.1 General requirements 6
5.2 spraying equipment 6
5.3 heating and chemical treatment equipment 6
6 operating system and a plasma device 6
6.1 General requirements 6
6.2 Operating personnel protective equipment 6
6.3 Starting and stopping 7
6.4 Protection torch run is easy to produce toxic substances 7
6.5 overheat protection 7
6.6 Sound proof 7
6.7 Electromagnetic radiation protection 7
6.8 Particle Protection 7
6.9 UV radiation protection 7
6.10 Fire 7
6.11 cable, liquid cooling and hydraulic lines 7 Loss Prevention
Maintenance 87 plasma systems and devices
7.1 General requirements 8
7.2 Special Requirements 8
8 brand, marking and technical documentation 8
Appendix A (informative) torch system running around the electromagnetic radiation threshold 9
Reference 10
Foreword
All technical content in this section is mandatory.
GB 5959 "electric safety device" has the following 13 sections.
--- Part 1. General requirements;
--- Part 2. Particular requirements for arc furnace apparatus;
--- Part 3. Particular requirements for induction and conduction heating and induction melting apparatus means;
--- Part 4. Particular requirements for resistance heating apparatus;
--- Part 41. Particular requirements for resistance heating and melting glass heating apparatus;
--- Part 5. Particular requirements for plasma unit;
--- Part 6. Industrial microwave heating equipment safety regulations;
--- Part 7. A device having an electron gun of special requirements;
--- Part 8. Particular requirements for electroslag remelting furnaces;
--- Part 9. Particular requirements for high-frequency dielectric heating apparatus;
--- Part 10. Resistance to industrial and commercial heating systems profiling specific requirements;
--- Part 11. Liquid metal for electromagnetic stirring, transport or pouring of special equipment requirements;
--- Part 13. Electric apparatus for explosive atmosphere of special requirements.
This Part replaces GB 5959.5-1991 "Safety in electroheat installations Part V. plasma equipment and other safety procedures", as compared with the latter
The main changes are as follows.
--- Full text of the "standard" to "this Part";
--- The "plasma gun" to "plasma torch";
--- This section is no longer suitable for welding, cutting and welding equipment (see Chapter 1, last paragraph);
--- Removed the references arc welding equipment;
--- Standard structure changes. the plasma torch equipment, power supplies, and cooling the working gas components and control units as
A whole into a plasma torch system, and then were based on ignition and the presence of the chamber (reactor), the plasma torch system
Equipment and systems are classified, respectively, the provisions to which they apply test and measurement;
--- Increased circuit security requirements (see 4.1.2 and 4.2.2);
--- Increased the power of the security requirements (see 4.1.3 and 4.2.3);
--- Increased ignition device security requirements (see 4.1.8 and 4.2.8);
--- Increased plasma control system security requirements (see 4.1.9 and 4.2.9);
--- Delete "radio interference" (see 1991 version 4.8);
--- Increased noise, electromagnetic radiation, particle, ultraviolet radiation protection and fire protection requirements (see 6.6 to 6.10);
Remove plasma furnace equipment --- safety requirements for a chapter (see Chapter 6, 1991 edition);
--- Add "plasma systems and equipment maintenance" (see Chapter 7);
--- Delete the original Appendix A "measurement of the insulation resistance and dielectric strength test";
--- Add a new Appendix A "torch system running around the electromagnetic radiation threshold";
--- Increased by reference.
This part is proposed by the China Electrical Equipment Industrial Association.
This part of the National Electric Equipment Industry Standardization Technical Committee (SAC/TC121) centralized.
This section is drafted. Xi'an Institute Ltd. furnace, furnace Metallurgical Engineering Technology Center, the State Quality Supervision and Inspection Center Furnace,
Shaanxi Province electric engineering and technology research center.
The main drafters of this section. Huangkui Gang, Ge Hua, Zhu Lin.
This part of the standard replaces the previous editions.
--- GB 5959.5-1991.
Electric safety device
Part 5. Particular requirements for plasma unit
1 Scope
GB 5959 safety requirements specified in this section applies to.
a) thermal plasma torch systems.
--- Arc plasma system;
--- Induction plasma system.
b) the use of means of a plasma torch system.
--- Spraying equipment;
--- Solid, liquid and gaseous charge heating and chemical treatment equipment.
This section defines the security requirements for all components of the plasma torch system and apparatus using plasma torch systems, including electrical equipment
Equipment, cooling lines, gas pipes, furnaces and furnace or reactor or reactor with the use of all other related equipment.
The plasma torch for welding, cutting and allied processes safety and structural requirements in GB/T 15579.7-2005 specified.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 2900.23-2008 Electrotechnical terminology industrial electric equipment (IEC 60050-841.2004, IDT)
GB 4824-2004 industrial, scientific and medical (ISM) radio-frequency equipment - Electromagnetic disturbance characteristics - Limits and methods of measurement (CISPR
11.2003, IDT)
GB 5959.1-2005 Safety of electric devices - Part 1. General requirements (IEC 60519-1.2003, IDT)
Test methods GB/T 10066.5-2014 electric installations - Part 5. electric and electrochemical devices using plasma
(IEC /T S60680.2008, IDT)
3 Terms and Definitions
GB/T 2900.23-2008, terms and definitions GB 5959.1-2005 and GB/T 10066.5-2014 defined apply to this
file.
Safety requirements --- 4 thermal plasma system design and equipment characteristics
4.1 arc plasma torch system
4.1.1 General requirements
See GB 5959.1-2005.
4.1.2 Circuit
See Chapter 6 GB 5959.1-2005. In addition, GB 5959.1-2005 6.4.1 applies to the entire device.
4.1.3 DC arc power supply
The following requirements apply to the specific system of a DC arc power supply.
4.1.3.1 Power Ground
DC arc power supply side of a pole (positive or negative, depending on the polarity of the torch), the system shall be used independently of the main ground wire grounding wire grounding,
To avoid possible leakage current flows to the circuit, for example as a torch control circuit.
4.1.3.2 Power connection with torch
When the torch is disconnected, the DC cables should be grounded through the grounding switch, in order to safely operate the torch.
Before the arc ignition should be required operating procedures, can be manually locking/unlocking means to achieve (usually operated by security key) and to special
Do not confirm the main circuit breaker is on line and the grounding switch has been disconnected. In addition, the operator can use the key to start the ignition eventually remove the program. This program
It should comply with regulations of the country of installation.
4.1.4 torch sockets, plugs and connection cables
See Chapter 8 GB 5959.1-2005.
4.1.5 torch
Any design arc plasma torch has the following salient features. high-temperature gas, high pressure (usually) and liquid cooling (usually
water). Therefore, for safe operation, the torch design and structure should meet the following criteria.
a) Electrical Characteristics.
--- Design between parts of the same voltage in the operation should be fixed electrical connections, including electrode holders, and ground components,
To prevent overheating;
--- High voltage torch, if the leakage current flowing through the torch body exceeds 10mA, the torch should be automatically shut down;
--- Between different voltage components (especially between the electrodes) should be fixed electrical insulation, so that under normal operating conditions do not
Unexpected electrical breakdown occurs.
b) cooling liquid characteristics.
--- Resistivity coolant of the cooling circuit and the torch design make different voltages member running between the electrodes in particular
Maintain insulation required;
--- If the electrode breakage (accidents or normal wear and tear) appears, first electrode material through the design and/or electrodes, followed by
Using the electrode detection signal to turn off the torch, so this phenomenon under control.
4.1.6 cooling circuit
The following specific requirements for cooling equipment.
a) Mechanical properties.
--- Fixed or manually operated torch coolant hoses shall be of sufficient length, flexible and suitable radius of curvature (if any) to
To withstand the stresses generated by the high-pressure coolant and allow special operating manual torch;
--- Taking into account a predetermined flow rate to obtain the desired high pressure in the hose, the hose should not be due to the mechanical strength of occasional or prolonged exposure to
Hot particles (from the furnace hot material), and by the torch itself, or heating process heat and material significantly influenced by
influences;
--- If the flow direction of the cooling liquid is important, it should be on the torch and hose connection fitting by an arrow and/or color-coded label
Out. It should be used not interchangeable connector;
--- When using a predetermined flow rate, even if there is an impact or flow pipe blockage, torch coolant hoses, pipes and fittings should also be
Holding no leakage, taking into account also the hose heat and the impact of possible radiation and ultraviolet radiation.
Coolant Importers and bending angle of the torch connections --- torch body should be as small as possible, joints should be taken at least basic insulation measures
Shi, torch body to reduce the likelihood of electrical breakdown.
b) Electrical characteristics.
--- Torch high pressure hose shall be of insulating material, and its length should limit the leakage current is less than 10mA;
--- When the cooling circuit is disconnected or flow is below a predetermined value, the torch should be automatically cut off the power supply;
--- The operator should be able to close the cooling circuit control and monitoring devices to read them and take the necessary number is shown if necessary
Measures.
4.1.7 manifold
The following specific requirements apply to pneumatic equipment.
a) General characteristics.
--- Should comply with the safety rules for the use of high-pressure gas container industry, taking into account the ongoing work of the country of installation procedures;
b) Mechanical properties.
--- Gas hose fixed or manual operation of the device shall be of sufficient length, flexible and suitable radius of curvature (if any),
To withstand the high pressure gas generated by certain restrictions and allows the operator to manually torch;
--- Intake hose shall be designed to withstand the pressure required to achieve a predetermined flow rate, due to its strength should not be occasional or long-term exposure to heat
Hot particles or material significantly decreased. Their heat and UV radiation should meet under normal operating conditions
Claim;
--- Gas hose and pipe connections with fixed fittings shall withstand the gas pressure in the pipeline when the resulting blockage.
c) Electrical Characteristics.
--- Torch high pressure hose shall be of insulating material, its length should be able to limit the leakage current of less than 10mA;
--- When pneumatics shutdown or gas torch minimum flow specified by the manufacturer does not meet the safety devices should be able to prevent the torch ignition;
--- The operator should be able to be close to the gas pipeline control and monitoring devices, so that when they need to read the indication.
d) Other features.
--- Compressed gas container mounted plasma torch using the vicinity should be protected to prevent possible overheating, discharge and hot
Sputtered material. Portable compressed gas container should also take similar precautions.
4.1.8 squib
The following specific requirements apply to the ignition device.
a) high-frequency ignition device.
--- High-voltage protection should be consistent with the current regulations of the country of installation.
b) short-circuit ignition device.
--- Typically use high-pressure hydraulic cylinders to move the device. Of the cooling circuit requirements apply equally to the device;
--- Should be non-flammable and biodegradable hydraulic medium.
Note. the ignition means be a major source of electromagnetic radiation.
4.1.9 arc plasma system control
For safety reasons, there should be more emergency button to cut off the circuit through the wiring plasma system.
4.2 induction plasma system
4.2.1 General requirements
See GB 5959.1-2005.
4.2.2 Circuit
See Chapter 6 GB 5959.1-2005. In addition, GB 5959.1-2005 6.4.1 applies to the entire device.
4.2.3 Power
4.2.3.1 Power Ground
Supply should be independent of the main system grounding wire grounding wire to ground, to avoid possible leakage path, as indicated by the control circuit formed by the torch
path.
4.2.3.2 Power connection with torch
You should consider the following requirements.
a) Actions should be enclosed in a Faraday cage to reduce electromagnetic radiation and prevent operator access high-voltage terminals. If the torch cover is opened,
Interlocking signals should cut off the pressure;
b) high-voltage terminal should be grounded to the housing when released when the torch or Faraday cage open or shut off the RF generator may be stored in a capacitor
Where the residual charge (see 6.2.4 in GB 5959.1-2005).
4.2.4 torch sockets, plugs and connection cables
You should consider the following requirements.
--- Between electrical terminal leads and between them and the ground terminal should have sufficient distance to prevent arcing;
--- To use water-cooled conductor, 6.6 GB 5959.1-2005 is applicable;
--- Avoid conductor tensile stress and small bending radius.
4.2.5 torch
High-temperature gas, high pressure (usually) and liquid cooling (generally. the design of any induction plasma torch has the following salient features
Water). Therefore, for safe operation, the torch design and structure should meet the following criteria.
a) Electrical Characteristics.
--- Designed for the voltage between the same parts in the operation of the electrical connection should be fixed;
--- Torch in structure or ferromagnetic metal should not be used within a Faraday cage;
--- Induction coil and torch body should be sufficiently insulated or Faraday cage.
b) Coolant features.
--- Cooling circuit design and the resistivity of the coolant should ensure that the required runtime insulation;
--- Should prevent the torch route coolant into the torch chamber. If you run the torch into the leakage cavity (accidents or normal wear and tear), should make this
Accident kept under control;
--- GB 5959.1-2005 6.6 apply.
4.2.6 cooling circuit
The following specific requirements for cooling equipment.
a) Mechanical properties.
--- Cooling hose is connected to the torch should be non-conductive and non-ferromagnetic material.
--- If the flow direction of the cooling liquid is important, it should be on the torch and hose connection fitting by an arrow and/or color-coded label
Out. Use non-interchangeable connectors.
--- When using a predetermined flow rate, even if there is an impact or flow pipe blockage, torch coolant hoses, pipes and fittings should also be
Holding no leakage, it should also consider the impact of the hose and possible heat radiation and ultraviolet radiation.
b) Electrical characteristics.
--- GB 5959.1-2005 6.6 applies;
--- Hose length should be appropriate to limit the leakage current;
--- When the torch cooling flow is below a predetermined level of safety and/or temperature exceeds a predetermined safety level, it should be cut off automatically torch
power supply;
--- The operator should be able to close the cooling circuit control and monitoring devices to read them and take the necessary number is shown if necessary
Measures.
4.2.7 manifold
The following specific requirements apply to pneumatic equipment.
a) General characteristics.
--- Should comply with the safety rules for the use of high-pressure gas container industry, taking into account existing work rules of the country of installation.
b) Mechanical properties.
--- Means of gas hose should be of sufficient length, flexible and suitable radius of curvature (if any) to withstand high pressure gas
Produced by certain restrictions;
--- Intake hose shall be designed to withstand the pressure required to achieve a predetermined flow rate, due to its strength should not be occasional or long-term exposure to heat
Hot particles or material significantly reduced. Their heat and UV radiation should meet under normal operating conditions
Claim;
--- Gas hose and pipe connections with fixed fittings shall withstand the gas pressure in the pipeline when the resulting blockage.
c) Electrical Characteristics.
--- Hose shall be of insulating material and have a suitable length to limit the leakage current;
--- Hose should be non-ferromagnetic material to prevent electromagnetic coupling;
--- When pneumatics shutdown or gas torch minimum flow specified by the manufacturer does not meet the safety devices should be able to prevent the torch ignition;
--- The operator should be able to close the gas path control and monitoring devices in order to read them shows the number of hours required.
d) Other features.
--- Compressed gas container mounted plasma torch using the vicinity should be protected to prevent possible overheating, discharge and hot
Sputtered material. Portable compressed gas container should also take similar precautions.
4.2.8 squib
The following specific requirements apply to the ignition device.
a) high-frequency ignition device.
--- High-voltage protection should be consistent with the current regulations of the country of installation;
--- Should prevent direct contact with live parts. The device should only be operated by a remote control device having good electrical insulation.
b) discharge ignition stick.
--- Should prevent direct contact with live parts. By remote control device should only have good electrical insulating means to operate;
c) vacuum-firing.
Design --- torch and containers should be able to withstand a pressure below atmospheric pressure of 1 bar. Design should take into account external overvoltage increased pressure
load.
Note. the ignition means be a major source of electromagnetic radiation.
4.2.9 Induction plasma system control
You should have several emergency button to cut off the circuit through the wiring plasma system.
--- Safety requirements for the design and characteristics of the device 5 using a plasma torch device
5.1 General Requirements
Using a plasma torch apparatus including its application into two categories (such as GB/T 10066.5-2014 described).
--- Spraying equipment;
--- Solid, liquid, gaseous charge heating and chemical treatment equipment.
The first category involves no furnace or a plasma reactor applications, so they are mainly applicable safety requirements plasma torch system
Those, but in 5.2 it provides a number of additional requirements.
The second category relates to a plasma furnace or reactor applications, furnace or reactor into the material to be treated and supplied with plasma.
In this case, some of the additional requirements specified in 5.3 apply.
5.2 spraying equipment
See 4.1 and/or 4.2.
In addition, wire feeder and powdered material should comply with the provisions and requirements, including the following.
--- Electrical connections;
--- Connected manifold pressure (carrier gas);
--- Connection to the torch.
When a transfer of plasma sprayed surface should be grounded to prevent contact with any part of accessibility load pressure.
5.3 heating and chemical treatment equipment
See 4.1 and/or 4.2.
Additional.
Part --- 4.1.1 and 4.1.6 apply to the furnace and/or reactor;
--- Furnace metal casing should be grounded to prevent contact with any part of accessibility load pressure;
--- To be considered include not only toxic substances produced by a torch, but also into the material due to the interaction of the plasma caused
Decomposition or transformation generated;
--- Should also take into account the risk of explosion, and to comply with existing regulations of the country of installation.
6 plasma operating systems and devices
6.1 General requirements
See GB 5959.1-2005.
In addition, the plasma process systems and equipment operation, operating conditions, the operator should comply with safety devices installed States
Procedures (such as high-voltage protection, noise, toxic emissions, temperature, etc.).
6.2 Operating personnel protective equipment
Plasma system operators and equipment should wear appropriate protective equipment in the work to be undertaken. aprons, gloves for special protection
Eyes from heat insulating mask glare, UV and IR radiation damage and appropriate insulated shoes.
In addition, they should use the appropriate tool such as ear protection products to prevent damage by noise.
Workplace should be effectively shielded to protect personnel in the vicinity.
6.3 Starting and stopping
It shall be necessary in order to start and shut down the plasma systems and equipment to ensure work safety. In particular, shall regulate the ignition before the torch
Coolant flow and gas flow.
Coolant gas supply should not be interrupted in operation and should be maintained for some time after the necessary cut off the power.
Control equipment should be sure to start the system and equipment, steady-state operation and the entire program is stopped in the correct order of.
If the failure or emergency situations, the available wiring circuit in an emergency button cut off the pressure.
6.4 Protection torch run is easy to produce toxic substances
If the use of the plasma torch can produce toxic compounds should be taken in an appropriate manner in accordance with the existing regulations of its country of installation
Exclude (for example, filtration, dilution or chemical treatment), so that the concentration of toxic compounds within the operator's breathing zone below the specified minimum value.
In particular, shall install a specific gas detector within the operating personnel to monitor the work area air conditions. And it should define and mark the exhaust
path.
In addition, when the plasma emitted into the atmosphere, the torch should be placed in a special hut or danger zone of separation. Torch run, now
Field staff should be outside the cabin or region.
Note. This protection applies to the case of plasma working gas itself is toxic substances, such as carbon monoxide.
6.5 overheating protection
Any part in the operation manual torch should not reach the required contact may cause injury to the operator temperature.
High-temperature portion of the fixing torch operator should be inaccessible.
6.6 Sound proof
In addition to the operator's ear protection supplies, noise p...
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