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GB 5959.9-2008: Safety in electro-heat installations -- Part 9: Particular requirements for high-frequency dielectric heating installations
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Safety in electro-heat installations -- Part 9: Particular requirements for high-frequency dielectric heating installations
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Safety in electroheat installations--Part 9: Particular requirements for high-frequency dielectric heating installations
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Basic data
Standard ID: GB 5959.9-2008 (GB5959.9-2008)
Description (Translated English): Safety in electro-heat installations -- Part 9: Particular requirements for high-frequency dielectric heating installations
Sector / Industry: National Standard
Classification of Chinese Standard: K60
Classification of International Standard: 25.180.10
Word Count Estimation: 11,10
Date of Issue: 2008-09-19
Date of Implementation: 2009-06-01
Older Standard (superseded by this standard): GB 5959.9-1989
Quoted Standard: GB/T 2900.23-2008; GB 5959.1-2005
Adopted Standard: IEC 60519-9-2005, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 16 of 2008 (No. 129 overall)
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 Chinese standard relates to high-frequency dielectric heating apparatus (hereinafter referred to as high-frequency dielectric heating apparatus) relating to personal devices Particular requirements for safety. This standard applies to the natural atmosphere and the protection of the atmosphere (for example, an inert gas or vacuum), the right, such as plastic, wood, rubber, textiles, glass, ceramics, paper, bamboo and food partially conductive or non-conductive material for melting, drying, heat sealing, bonding and other pest control and industrial thermal processing high-frequency dielectric heating device. This standard deals with a nominal frequency of 1MHz ~ 300MHz, rated output power greater than 50W useful for high-frequency dielectric heating device. The apparatus includes a high frequency generator and a capacitor for heating materials, according to need may also include the necessary mechanical devices.
GB 5959.9-2008: Safety in electro-heat installations -- Part 9: Particular requirements for high-frequency dielectric heating installations
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Safety in electroheat installations.Part 9. Particular requirements for high-frequency dielectric heating installations
ICS 25.180.10
K60
National Standards of People's Republic of China
GB 5959.9-2008/IEC 60519-9.2005
Replacing GB 5959.9-1989
Electric safety device
Part 9. Particular requirements for high-frequency dielectric heating apparatus
(IEC 60519-9.2005, IDT)
Published 2008-09-19
2009-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China issued
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative References 1
Terms and definitions 1 3
4 precautions dielectric heating generator 2
4.1 Overview 2
4.2 pairs of direct contact with the protective 2
4.3 Other protective measures 2
4.4 Temperature Rise - Fire 3
4.5 clearance and creepage distances 3
4.6 Internal electrical connections 3
4.7 capacitor 3
4.8 Cooling 3
4.9 Overload 3
4.10 RFI suppression 4
5 uses the applied medium precautions 4
5.1 with a mechanical member moving means 4
5.2 flammable material processing 4
5.3 pairs indirect contact protection 4
5.4 Other protective measures 4
Test 6 protective measures 5
7 Nameplate 5
Reference 6
GB 5959.9-2008/IEC 60519-9.2005
Foreword
This part of all except art in Chapter 16 of the mandatory content.
GB 5959 "electric safety devices" has the following 13 sections.
--- Part 1. General requirements (GB 5959.1-2005, IEC 60519-1.2003, IDT);
--- Part 2. Particular requirements for arc furnace apparatus (GB 5959.2-2008, IEC 60519-4.2006, IDT);
--- Part 3. Particular requirements for induction and conduction heating apparatus and an induction melting apparatus (GB 5959.3-2008,
IEC 60519-3.2005, IDT);
--- Part 4. Particular requirements (GB 5959.4-2008, IEC 60519-2.2006, IDT) resistance heating means;
--- Part 41. Particular requirements for resistance heating means for heating and melting glass --- means (GB 5959.41-2004,
IEC 60519-21.1998, IDT);
Safety regulations plasma apparatus (GB 5959.5-1991, eqv IEC 60519-5.. 1980) --- first portion 5;
--- Part 6. Safety Specification Industrial microwave heating apparatus (GB 5959.6-2008, IEC 60519-6.2002, IDT);
--- Part 7. Particular requirements for the apparatus having the electron gun (GB 5959.7-2008, IEC 60519-7.2008, IDT);
--- Part 8. Particular requirements for electroslag remelting furnace (GB 5959.8-2007, IEC 60519-8.2005, IDT);
--- Part 9. Particular requirements (GB 5959.9-2008, IEC 60519-9.2005, IDT) high-frequency dielectric heating apparatus;
--- Part 10. for industrial and commercial heating systems special requirements (IEC 60519-10.2005, to be transformed) resistor profiling;
--- Part 11. electromagnetic stirring of the liquid metal, transport or pouring special requirements (GB 5959.11-2000 device,
idt IEC 60519-11.1997);
--- Part 13. Particular requirements for the heating apparatus having an explosive atmosphere (GB 5959.13-2008).
This is Part 9 GB 5959's.
This section is equivalent to using IEC 60519-9.2005 "Safety of electric heating means 9. To special high-frequency dielectric heating apparatus
Seeking "(second edition, in English).
For ease of use, for IEC 60519-9.2005, made in this section, the following editorial changes.
--- "This standard" be replaced by "this section";
--- deleted international standards foreword and preface;
--- account of the requirements and high-frequency dielectric heating apparatus for the personal protection of the integrated electromechanical equipment, employing
IEC 60519-9.2005, which is extended to the special requirements of the relevant persons and comprising the necessary mechanical safety devices.
This partial replacement GB 5959.9-1989 "Safety of electric equipment Part 9. Particular requirements for high-frequency dielectric heating apparatus",
The main technical changes compared with the latter as follows (listed only project name).
--- text "This standard" to "this Part";
--- full article by article number and title of the basic IEC 60519-9.2005 corresponds to revise, write the first chapter 1,2,3 title by GB/T 1.1
Regulations;
--- to increase the range. "Note. Press CISPR11" electromagnetic disturbance characteristics of industrial, scientific and medical (ISM) radio frequency equipment Limits and
Method ", specify some preferred primary frequency of ISM (ISM) frequency. ";
--- increased range "GB 5959.1-2005" Safety first portion of the electrothermal device. General Requirements "refers to a segment voltage work
Frequency supply voltage. In some circuits in high-frequency dielectric heating apparatus (built-in transformers as generator), DC, or AC
Have higher RF voltage values. ";
--- increasing the normative references;
--- delete the original "3.1 to 3.9" 9 terms and definitions;
GB 5959.9-2008/IEC 60519-9.2005
--- increase "medium heating means 3.1, 3.2 (medium) is applied, a 3.3 standard tools" three terms and definitions;
--- "4.5 clearance and creepage distances" corresponding to the original is deleted in the standard 5.4 "intermediate";
--- "4.6 Internal Electrical connection" after deleting the original corresponding to the standard injection 5.5.2;
--- "4.7 capacitor" Added Note 2, Note 3, 4 content and IEC 60204-1 cited by deleting the reference to the GB 3984;
--- "RFI suppression 4.10" corresponding to the original standard 5.9, 4.10.1 requirements increase;
--- "indirect contact protection 5.3 pairs of" high-frequency voltage without increasing the frequency "heat capacitor or the working electrode is typically only
50Hz/60Hz or DC voltage component (thermal plastic timely prevention apparatus burnt except low pressure). In the event of failure (insulation breakdown
Wear), 50Hz/60Hz or DC voltage that may appear on the heating or working electrode of the capacitor. Therefore, it is recommended by a
The inductance of the capacitor electrode is grounded or (if there is no such an inductance in the actual circuit). "Claim;
--- 5.4.1 Add "Note. In some cases, when a high-frequency electrode voltage exceeding 10kV magnitude, the arc may be generated (in the electrical heating
A surrounding space of the container and the electrode arcing). This arc power capacity of 0.5kW of magnitude, there is usually less than the high frequency
With power. Thus, the arc does not cause the overcurrent device operation. To eliminate the arc, there may need to manually cut off and close the high
Frequency voltage. ";
6.3 --- increase "manufacturer shall specify the conditions of this test (such as inductors, material and shape of the short-circuit element).";
Increase --- 6.4 "Note. Some devices may reach temperatures member at its maximum load or minimum load actually used
value. Therefore, the load test may be necessary. The overload test to find out parasitic oscillation is helpful. ";
--- increase the "References."
This section was proposed by China Electrical Equipment Industrial Association.
This part of the jurisdiction of the National Electric Industry Standardization Technical Committee (SAC/TC121) equipment.
This section was drafted. Furnace Co., Ltd. Xi'an Institute.
The main drafters of this section. Liu Xiping, Ge Hua Shan.
This section replaces the following previously issued as follows.
--- GB 5959.9-1989.
GB 5959.9-2008/IEC 60519-9.2005
Electric safety device
Part 9. Particular requirements for high-frequency dielectric heating apparatus
Range 1
GB This part 5959 specifies the personal security device concerning frequency dielectric heating apparatus (hereinafter referred to as a high-frequency dielectric heating apparatus)
special requirements. This section applies to the natural atmosphere and a protective atmosphere (e.g., inert gas or vacuum), and for such as plastic, wood, rubber, woven
Portion conductive or nonconductive material products, glass, ceramics, paper, bamboo, and food melting, drying, heat sealing, bonding or the like, and thermal processing pest
Industrial high-frequency dielectric heating apparatus.
This section relates to the nominal frequency of 1MHz ~ 300MHz, rated output power is greater than a useful frequency dielectric heating apparatus of 50W.
The high frequency generator means comprises a capacitor and a material to be heated, if necessary, may further comprise the necessary mechanical means. "
Note. 1) CISPR11 "disturbance characteristics Limits and methods of measurement industrial, scientific and medical (ISM) radio device," as the main ISM (ISM)
Frequency specifies the number of preferred frequencies.
GB 5959.1-2005 "Part 1 Electric safety device. General Requirements" section refers to the voltage supply voltage frequency.
In some circuits in high-frequency dielectric heating apparatus (built-in transformers as generator), DC, AC or RF voltage will have a higher value.
1) adopt standard Description. GB 4824-2004 industrial, scientific and medical (ISM) radio frequency equipment electromagnetic disturbance characteristics - Limits and methods of measurement (currently valid version
This) (CISPR11.2003, IDT), has now CISPR11 version in 2006.
2 Normative references
Terms of the following documents constitute provisions of this section by reference in this part of GB 5959. For dated references,
All subsequent amendments (excluding corrections) or revisions do not apply to this section, however, encouraged to reach an agreement under this section
Whether the parties to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.
GB/T 2900.23-2008 Electrotechnical term industrial heating means (IEC 60050-841.2004, IDT)
GB 5959.1-2005 electric safety devices - Part 1. General requirements (IEC 60519-1.2003, IDT)
3 Terms and Definitions
GB/T 2900.23-2008 and GB 5959.1-2005 established following terms and definitions apply to this section.
3.1
It means consisting of a dielectric and the dielectric heating applicator generator, high frequency transmission line (if any).
3.2
Or by the heating of the capacitor fixing and positioning system with a working electrode, an impedance matching circuit (if it is not disposed in the generator), the need
Protection and shielding means and transfer means, the supply and ventilation thereof.
3.3
Screwdriver, adjustable wrench, flat wrenches and pliers and other simple tools.
GB 5959.9-2008/IEC 60519-9.2005
4 Generator heating medium safeguards
4.1 Overview
Dielectric heating generator comprising.
a) a portion of the frequency components of the power supply and distribution required;
b) a rectifier section, which typically includes the commercial frequency current into a high voltage direct current component;
c) oscillator section, and which comprises generating high frequency energy necessary for matching element (oscillator section housed within a high frequency shield to reduce
radiation);
d) control and monitoring system, which comprises a program controller for interlocking the overload safety device and a switching means and monitoring
Device.
4.2 pairs of direct contact with the protective
4.2.1 General Protection
In addition to dielectric heating generator output terminal, all the live parts to be provided in one or more adequate for protection against direct contact
With the housing.
4.2.2 protective measures close to the second section of the charging voltage portion
For accessing the second section of the door voltage (up to 1500V 1000V AC or smoothed DC) charging section and/or removable cover
Plate, should be provided with a key to open the door or configuration, when the door is open or remove the cover interlock can cut off electrical power.
Rarely open to the removable cover should be fastened with screws secure the safety screw without tools or with standard tools that they can not
Remove the.
4.2.3 proximity third segment voltage charging portion safeguards
Used for access to the third segment voltage (over 1500V 1000V AC or smoothed DC) portion of the charging door and/or removable cover
Plate, mechanical interlock shall be provided with a power measures to prevent the electrode portion closer to the charging voltage is removed prior to, or at the same time an electrical configuration of the door
Gas interlock and mechanical locks.
Rarely open to the removable cover should be fastened with screws secure the safety screw without tools or with standard tools that they can not
Remove the.
4.2.4 protective measures in the proximity of the high-frequency voltage charging section
In the case where only the live parts may be close at a high frequency voltage (not close in a 50Hz/60Hz frequency voltage of lower frequency, such as
Live parts), should take the following precautions.
Except when the foreign matter does not enter the high-frequency component while in contact with the protective housing of the door or the protective cover or housing to provide comprehensive and effective
An outer protection, the protective shell of the movable cover or door openings to be provided and reliability can not be reset or non-reset of the safety switch
Interlock means to ensure that when a high frequency voltage is not applied when the door is open or remove the cover plate.
Few of the open cover removably screwing security applications, the security screw with standard tools without tools or from outside it is not
They were relieved of.
4.2.5 Warning labels
It should set the necessary warning signs.
NOTE. In some countries, the need to set up warning signs to inform non-ionizing radiation with a marker.
4.3 Other protective measures
4.3.1 Protection device should have the following means.
a) should be provided with one or more means to protect the under abnormal operating conditions (e.g., during the overload condition) it from damage
Means;
b) if necessary, be provided with one or more of the present apparatus so as to protect the device from interference of other devices;
c) if necessary, it is provided with one or more means of the present apparatus so as to protect against interference autogenous.
4.3.2 If necessary, each of the protection device shall be jointly overtemperature protection.
GB 5959.9-2008/IEC 60519-9.2005
4.3.3 shall take appropriate measures to reduce the induced voltage or induced current so that it meets safety standards.
4.3.4 All armored cable and the metal feed pipe, in through the high-voltage circuit contains a voltage belonging to the third segment of the housing, they should be
Grounded through the housing.
4.3.5 DC power and 50Hz/60Hz frequency AC power station apparatus, the grounding should meet the requirements of GB 5959.1-2005.
Means for transmitting high-frequency power apparatus should be protected to ensure that the voltage at the contacts where the operator is allowed value, for example with a ground
The shield and/or an operator located at the ground.
4.4 Temperature Rise - Fire
4.4.1 dielectric heating generator and a rectifier, the circuit should be arranged so that they are subjected to neither high temperature nor in the cabinet housing so that they
The temperature generated electrical device generally exceeds the allowed values.
4.4.2 material for the high-frequency voltage component to be free of any component will produce sustained combustion.
4.4.3 When the temperature rise within the cooling circuit fault of the generator will exceed the allowable value, the monitoring device should be provided for the power supply of the cutting device
Or take other measures to ensure safety.
4.5 clearance and creepage distances
A high frequency device used in the air gap and creepage distance are not necessarily identical 50Hz/60Hz frequency and means.
When small air gaps and creepage distances (e.g., high-frequency circuits), measures should be taken to prevent arcing to ensure safety.
4.6 Internal electrical connections
4.6.1 high-frequency current conductor and the connection means should be non-ferromagnetic material, it should also cover non-ferromagnetic material.
4.6.2 should be protected all the low frequency circuit, in order from the effects of high frequency of, for example, configure one or more high-frequency filter.
4.7 capacitor
4.7.1 Unless the capacitor device and other electrical equipment in direct contact with the discharge path and the discharge path does not access the disconnecting
Off fuse or the series capacitor, to ensure safety, the capacitor device belonging to respond to the second and third segments direct voltage even when necessary
Contact discharge device.
Note 1. discharge means can not be used a short-circuit between the capacitor and staff to ground before the respective terminal contact of the capacitor.
Note 2. IEC 60204-12) 6.2.4 frequency of the power supply and control circuit measures the residual voltage protection means carries electrical charge of equal or greater than 60μC
container.
Note 3. The high-voltage capacitor circuit in the vast majority of the charge carried by much less than 60μC, according to the article discharge device may be omitted.
Note 4. high voltage power supply filter capacitor some charges may exceed this value, then the article precautions apply.
2) Description adopt standard. GB 5226.1-2002 Safety of machinery Electrical Equipment Part 1. Common technical (current valid version) (IEC 60204-
1.2000, IDT).
When using high-voltage power 4.7.2 LC filter when the energy conversion element (such as a tube or a semiconductor device), a vibrator should be provided if necessary,
Oscillation damping means to prevent over-voltage disconnect the circuit exceed the allowable value.
4.8 Cooling
4.8.1 water cooling members, appropriate measures should be taken to limit the electrolytic corrosion interfere with normal operation. For this reason, the manufacturer should be provided with means
Suitable instructions for use.
4.8.2 Soft water and its layout should make the leak current does not exceed safe levels.
NOTE. In the cooling system should try to avoid the formation of bubbles. Hose fittings require special attention.
4.8.3 In the water-cooled conductor passing high-frequency current, to avoid water condensation.
4.8.4 of forced air-cooled medium heat generator, precautions should be taken to prevent and reduce the deposition of dust due to the safety of the operation.
4.9 Overload
4.9.1 circuits and components for dielectric heating generator, if the temperature exceeds the allowable value, should provide thermal overload protection.
4.9.2 short-circuit may occur in all parts of the device caused by the overload protection should be provided.
4.9.3 If necessary, the medium is heated generator should be provided with a program control device, in order to ensure personal power down under abnormal operating conditions, and
Safety device.
GB 5959.9-2008/IEC 60519-9.2005
4.9.4 If the charge processing device for heating the medium located outside the generator should be provided with a remote connection terminal, should be provided for at least
Operation "Emergency Stop" connected terminal device.
RFI suppression 4.10
4.10.1 RF interference should be avoided during normal operation of the heating medium.
Note. the provisions concerning radio frequency disturbance limits in the CISPR11.
A housing containing a high-frequency circuit section 4.10.2 pair shall be constructed so that leakage of high-freque......
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