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GB 5959.2-2008 English PDF

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US$294.00 · In stock
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GB 5959.2-2008: Safety in electro-heat installations -- Part 2: Particular requirements for arc furnace installations
Status: Valid

GB 5959.2: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 5959.2-2008	294	Add to Cart	3 days	Safety in electro-heat installations -- Part 2: Particular requirements for arc furnace installations	Valid
GB 5959.2-1998	559	Add to Cart	3 days	Safety in electroheat installations--Part 2: Particular requirements for arc furnace installations	Obsolete
GB 5959.2-1986	RFQ	ASK	3 days	Safety in electroheat installations--part 2: particular requirements for arc furnace installations	Obsolete

Similar standards

GB/T 20138 GB/T 42407 GB/T 5959.41 GB/T 5959.1 GB/T 5959.11 GB/T 5959.10

Basic data

Standard ID: GB 5959.2-2008 (GB5959.2-2008)
Description (Translated English): Safety in electro-heat installations -- Part 2: Particular requirements for arc furnace installations
Sector / Industry: National Standard
Classification of Chinese Standard: K60
Classification of International Standard: 25.180.10
Word Count Estimation: 15,160
Date of Issue: 2008-09-19
Date of Implementation: 2009-06-01
Older Standard (superseded by this standard): GB 5959.2-1998
Adopted Standard: IEC 60519-4-2006, 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 applies to the following electric devices: direct arc furnaces, such as: direct electric arc furnace, submerged arc furnace, ladle furnace arc heating, indirect electric arc furnace.

GB 5959.2-2008: Safety in electro-heat installations -- Part 2: Particular requirements for arc furnace 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 2. Particular requirements for arc furnace installations ICS 25.180.10 K60 National Standards of People's Republic of China GB 5959.2-2008/IEC 60519-4.2006 Replacing GB 5959.2-1998 Electric safety device Part 2. Particular requirements for arc furnace apparatus (IEC 60519-4.2006, Safetyinelectroheatinstalations- Part 4. Particularrequirementsforarcfurnaceinstalation, 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

Preface Ⅰ 1 Scope 1 2 Normative References 1 Terms and definitions 1 3 4 by category voltage electric equipment sections 1 5 electric equipment by frequency classification section 2 6 generally require 2 3 and the opening and closing of the isolation 7 8 is connected to the grid 3 9 shock protection 3 10 overcurrent protection 3 11 4 equipotential bonding The control circuit 12 and the control function 4 13 Effect of heat shield 4 14 fire and explosion 4 15 nameplate, marking and technical documentation 4 Arc furnace inspection apparatus 16, in operation, use and maintenance 4 17 Design Requirements 5 Overvoltage protection 18 7 Annex A (normative) of the secondary circuit electrode and personnel working in the vicinity of other portions of the charged additional security system 8 Annex B (normative) additional non-electrical arc furnace safety requirements portion 10 B. Furnace shell 1 and the lid 10 of the cooling system B. Furnace shell 2 and the lid 10 of the evaporative cooling B. 3 embodiment Steel 10 B. 4 burners (auxiliary burners) 10 GB 5959.2-2008/IEC 60519-4.2006

Foreword

All technical content of this portion is mandatory. 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). In addition to this standard an outer part 13, are used to develop each of IEC 60519 part "safe heating apparatus" corresponds. This is Part 2 GB 5959's. This section is equivalent to using IEC 60519-4.2006 "Safety electrothermal Part 4. Particular requirements for arc furnace unit" (Third Version, English version). For ease of use, for IEC 60519-4.2006, made in this section, the following editorial changes. The term --- "this International Standard" by "this section"; --- standard name by a "glow Safety Section 4. Particular requirements for arc furnace means" to now; --- deleted international standards foreword. This partial replacement GB 5959.2-1998 "Safety second portion electrothermal apparatus. Particular requirements for electric arc furnace", as compared with the latter The main changes are as follows. --- structural adjustment 5959.1-2005 consistent with GB ; --- EAF increases defined classification section and a second voltage at the third voltage the device may segment (4.2.2); --- In Chapter 6 increased regulations affect the electromagnetic interaction; --- adds a predetermined direct contact with live parts (9.2.3) in Chapter 9; --- specified in Chapter 11, "tilt rail circuit is not as the return" (11.4.3); --- increased provisions for DC arc furnace in Chapter 16. This section should be used in conjunction with GB 5959.1-2005. Appendix A and Appendix B of this section is normative. GB 5959.2-2008/IEC 60519-4.2006 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. Fan Chaoying. This section replaces the following previously issued as follows. --- GB 5959.2-1986; GB 5959.2-1998. GB 5959.2-2008/IEC 60519-4.2006 Electric safety device Part 2. Particular requirements for arc furnace apparatus Range 1 GB 5959 in this section applies to the following heating means. --- direct arc furnace, such as. direct arc furnace, a submerged arc furnace, ladle furnace arc heating; --- indirect electric arc furnace. NOTE. When a direct current arc furnace electrodes, which is referred to as a DC arc furnace arc furnace.

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) IEC 60073.2002 people - computer interface, marking and identification with the basic principles and the principles of safety equipment and instructions encoded regulator principle IEC 60204-1.2005 Safety of machinery Electrical Equipment Part 1. General requirements 1) IEC 60364-4-41.2005 low-voltage electrical equipment Part 4-41. Safety shock protection 2) IEC 60364-4-43.2001 building electrical equipment - Part 4-43. Protection for safety overcurrent protection 3) IEC 60479-1.2005 Current Effect on human and livestock - Part 1. General characteristics 4) CISPR11.2006 Industrial, scientific and medical (ISM) radio frequency equipment electronic disturbance characteristics - Limits and methods of measurement 5)

3 Terms and Definitions

GB 5959.1-2005 and GB/T 2900.23-2008 established in terms and definitions apply to this section. 1) Description adopt standard. GB 5226.1-2002 Part 1 Safety of machinery electrical equipment. General requirements (currently valid version) (IEC 60204-1.2000, IDT). 2) Description adopt standard. 4-41 Part GB 16895.21-2004 building electrical devices. safety against electric shock (currently valid version) (IEC 60364-4-41.2001, IDT). 3) Description adopt standard. GB 16895.5-2000 Electrical installations of buildings Part 4. Safety Chapter 43. Protection against overcurrent (current valid version) (IEC 60364-4-43. 1977, IDT). 4) Description adopt standard. GB/T 13870.1-1992 effect a current through the first portion of the human body. Common part (currently valid version) (NeqIEC 60479-1. 1984). 5) 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).

4 voltage electric equipment according to the classification section

In addition to these supplements, according to GB 5959.1-2005 Chapter 4 requirements. 4.1 adds. The open circuit voltage nominal supply voltage section is determined by the line connected to the electrode. GB 5959.2-2008/IEC 60519-4.2006 4.2.2 increase. Direct voltage exceeds a second voltage arc furnace section may be, greater than 1000V AC (or DC 1500V), less than 1500V AC (Or the DC 2100V). It should be under the following conditions. a) Under the premise to meet operational requirements, the voltage power supply device according to a standard design exceeds 1000V AC (or DC 1500V); b) the expected targets and actual accessory device according to the nominal voltage required to meet 15.3; c) insulated conductor of a large current to meet the minimum requirements of the relevant standards.

5 electric equipment by frequency classification section

In addition to these supplements, according to GB 5959.1-2005 Chapter 5 requirements. 5.1 Addition. In terms of electromagnetic interference characteristics, the DC frequency of zero.

6 General requirements

In addition to these requirements, according to GB 5959.1-2005 6 and Appendix B. 6.1.1 Alternative. A third segment is replaced by the following. Voltage exceeds the voltage of the second section (1000V AC) voltage and the third section is not more than 3600V AC (or DC 5000V) of Arc furnace, along the surface of the insulating distances in the air should be considered at a high temperature, a strong electric field in the metal vapor injection and splashes and pollution Ionization phenomenon may occur in the case. 6.1.3 Alternative. Not even when the masonry of the refractory lining, the furnace should also ensure that there is sufficient mechanical stability. A submerged arc furnace masonry rectangular refractory lining required to To ensure mechanical stability, the design should be considered in case of expansion can be adjusted in accordance with the furnace. Operating position should be placed in the region of the operator from the normal position can be convenient and safe to reach, as far as possible and reasonable, practical. The design and placement of the operating position should prevent their malfunction, try to be reasonable and practical. It means designed to operate the plug connector It should be mechanically locking connector, and the connector does not move together with the power connection. 6.1.5 Alternative. Various hoses (pipes, hydraulic tubes, etc.) during operation of the device should not be subjected to strong mechanical stresses. 6.2.1 Alternative. Temperature close to the component mounting apparatus should have sufficient electrical and thermal strength protective. 6.2.3 Alternative. During normal operation of the circuit by the transformer, a reactor, a capacitor and a rectifier consisting of, a transient voltage is generated. Should take preventive Measures to avoid any harm to the transient voltage of the person. When designing electrical devices should be capable of inhibiting and/or subjected to an electric arc furnace during normal operation Produce extremely high over-voltage. 6.2.6 Alternative. Electrical equipment disposed such that it will not effect the physical and chemical heat the surrounding environment, molten material (e.g., in normal operation, and Sputtering salt, moisture, action of the oil, impact, friction or electromagnetic force or the like generated by the working current) damage. If necessary, take appropriate measures Administered, for example, protective grooves, grooves and the like. 6.3.2 Alternative. Electromagnetic leakage (stray field) effects, such as. eddy current and induced voltage, should also take similar precautions, as far as possible and reasonable, practical. 6.4.1 Alternative. For the electromagnetic interference generated by the electric arc furnace safety limits by CISPR11.2006 requirements. GB 5959.2-2008/IEC 60519-4.2006 Add the following new clause. 6.4.6 for the DC arc furnace to take measures to avoid the influence of the DC magnetic field on the electrical device, for example. display instruments, control instruments, electromagnetic Valves, sensors; and to prevent magnetization of the steel member. 6.6 Addition. This requirement also applies to the other part of the water-cooled electric arc furnace, e.g., the bottom electrode DC arc furnace. 6.6.6 increase. --- the maximum and minimum water pressure. And opening and closing the isolation 7 In addition to these supplements, according to GB 5959.1-2005 Chapter 7 requirements. Add the following new clause. 7.3 emergency disconnect operation means should IEC 60073.2002, clearly marked with a red marker. In the region of the bottom surface of the operating handle is located at the It should be coated with a yellow backing, the handle visible. Emergency disconnect the appliance operating means should be placed in a hazardous area outside the operator easily To close places. 7.4 before the top or near to between the working electrode, the bottom electrode comprises a DC arc furnace to respond and perform other conductive member Appendix A spacer listed and/or grounding procedures. It shall be provided to prevent inadvertent reconnection circuit. 7.5 Special attention should buck - boost power supply system (see Figure A.3), to ensure that during operation of the electrode, is the location of the operator As securely connected to the grounding point of the low pressure short-circuiting and grounding devices. During shutdown, a special indicator current and voltage when the system should any accident occur, to ensure that the high voltage circuit breaker tripped IEC 60479-1.2005 the current - time does not exceed the membership functions C1 requirements. 7.6 All controls related to the furnace to be designed as a "fail-safe" type, emergency disconnect function should be independent of the electronic component, such Requirements should be both reasonable and practical.

8 connected to the grid

According to GB 5959.1-2005 requirements of Chapter 8.

9 electric shock protection

In addition to these supplements, according to Chapter 9 GB 5959.1-2005 requirements. 9.1 Addition. National standards should apply to all countries according to the third voltage section, until another notice. Electric shock protection, see 4.2.2. Add the following new clause. 9.2.3 not directly contact charging member, but some operational steps of the charging member may be designed with special equipment and tools to complete. 9.3.2 Alternative. For ensure the safety indirect contact operation, IEC 60364-4-41.2005 requirements applicable only to the IT grounding system Related parts. 9.4 Alternative. Arc furnace, a grounded metal parts all prone to accidental charging in the event of damage to the insulation should as far as possible in the most electrically The short path is connected and secure them firmly to the ground terminal or the ground terminal of the plug connector. 10 overcurrent protection In addition to these supplements, according to GB 5959.1-2005 requirements of Chapter 10. GB 5959.2-2008/IEC 60519-4.2006 Alternative. In accordance with relevant standards, such as IEC 60364-4-43.2001 and IEC 60204-1.2005, for the electric arc furnace to provide over-current protection measures. When necessary, the overcurrent (overload and short circuit) should exceed these standards provide protective measures. NOTE. IEC 60364-4-43.2001 relates to high-voltage shielded cable and wiring to 1000V. Add the following new clause. 10.1 is connected to the power electric equipment switching device should be able to reliably cut off all current may occur, including the fault current. When the two switches in series operation, they should be safe and reliable cutting through all current may occur, including the fault current. 10.2 overcurrent protection see increasing demands 4.2.2. 11 equipotential bonding In addition to these supplements, according to GB 5959.1-2005 Chapter 11 requirements. Add the following new clause. 11.4.3 not tilt guide as the return circuit. And the control circuit 12 controls the function According to GB 5959.1-2005 requirements of Chapter 12. Protective effects of heat 13 According to GB 5959.1-2005 requirements of Chapter 13. 14 fire and explosion According to GB 5959.1-2005 requirements of Chapter 14. 15 nameplate, marking and technical documentation In addition to these supplements, according to GB 5959.1-2005 requirements of Chapter 15. 15.1.1 increase. l) primary identifier (e.g. connection. main circuit diagram of FIG furnace number). Add the following new clause. 15.2.5 EAF plate is preferably placed on a main control panel. When any part of the device there are important changes in the details, should be updated Nameplate. 15.3 increase. Further, an electric arc furnace manufacturer shall provide the respective functional portions of the apparatus described, operating instructions, maintenance instructions, and a circuit diagram. These documents Language used agreed between the manufacturer and user. Unless otherwise agreed, these documents should be in the language of the country where the device is installed. 16 electric arc furnace inspection apparatus, put into operation, use and maintenance In addition to these supplements, according to GB 5959.1-2005 Chapter 16 requirements. Add the following new clause. 16.1.3 specific requirements for electrical isolation shall be specified in a separate specification. These requirements should be posted on the switch operating area and/or to The officer issuing instructions recognized. 16.3.4 All personnel should wear suitable protective clothing in the furnace operating, underwear and other appropriate protective equipment, such as. --- protective boots; --- fire helmet (non-conductive); GB 5959.2-2008/IEC 60519-4.2006 --- protective mask (e.g., tinted glasses and masks); ---earmuffs; --- apron; ---insulation gloves; --- colored goggles. The DC arc furnace adapted to select light colored goggles. 16.3.5 addition Laid art, does not allow any access to live parts, comprising a furnace bottom electrode current. 16.3.6 shall be informed of the risks associated with the furnace operator. In addition, the application of warning signs warning them not to approach any of the following furnaces HE hazardous area and current carrying conductor area. These hazardous area of the inlet applying one or more fence block, as far as possible and reasonable, practical. 16.3.7 only after the use of protective measures 7.4, and the electrodes can be released, gripping, exchange and connection-related work And working electrode annexes. The above requirements for automatic connection electrodes. 16.3.8 If you get the personal safety of other suitable precautions comprehensive safeguards (such as. the operator is located at the insulation, with sufficient safety Whole distance, insulating means, an electrode contact only) is allowed to relax the requirements of 16.3.7. 16.3.9 If the furnace is in the energized state, the tool, the lance, the bath temperature......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB 5959.2-2008_English be delivered?

Answer: Upon your order, we will start to translate GB 5959.2-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB 5959.2-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB 5959.2-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB 5959.2-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB 5959.2-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.