GB 5959.13-2008 English PDF

US$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 5959.13-2008: Safety in electro-heat installations -- Part 13: particular requirements for electro-heat installation with explosive atmosphere
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 5959.13-2008	229	Add to Cart	3 days	Safety in electro-heat installations -- Part 13: particular requirements for electro-heat installation with explosive atmosphere	Valid

Similar standards

GB/T 20138   GB/T 42407   GB/T 5959.41   GB/T 5959.12   GB/T 5959.11   GB/T 5959.10   

Basic data

Standard ID: GB 5959.13-2008 (GB5959.13-2008)
Description (Translated English): Safety in electro-heat installations -- Part 13: particular requirements for electro-heat installation with explosive atmosphere
Sector / Industry: National Standard
Classification of Chinese Standard: K60
Classification of International Standard: 25.180.10
Word Count Estimation: 10,119
Date of Issue: 2008-05-20
Date of Implementation: 2009-04-01
Regulation (derived from): Announcement of Newly Approved National Standards No. 8, 2008 (No. 121 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 electric atmosphere for explosive devices and devices for personal Particular requirements for safety. This standard applies to an explosive atmosphere electric devices, such as the workpiece can be explosive solution infiltration by combustible or painted after drying, curing oven and other similar products. This standard does not apply to protective atmosphere or controlled atmosphere electric devices. This standard should be used in conjunction with GB 5959. 1.

GB 5959.13-2008: Safety in electro-heat installations -- Part 13: particular requirements for electro-heat installation with explosive atmosphere

---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 13. particular requirements for electroheat installation with explosive atmosphere ICS 25.180.10 K60 National Standards of People's Republic of China Safety - Part 13 electric means. having Particular requirements for electric apparatus for explosive atmosphere Posted 2008-05-20 2009-04-01 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 4 voltage electric apparatus by category section 2 5 electric apparatus by category in the frequency range of 2 6 2 General requirements 7 isolation and opening and closing 3 8 is connected to the internal grid connection and 3 Electric shock protection 93 10 overcurrent protection 3 11 Equipotential bonding 4 The control circuit 12 and controls 4 Protective thermal influence 13 4 14 fire, explosion, anti-suffocation, and poisoning prevention 4 15 brand names, and technical documents marked 4 Check 16 electric apparatus, put into operation, use and maintenance 4

Foreword

In addition to all the technical chapter 16 outside of 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 equipment; --- Part 41. resistance heating devices --- for the special requirements of heating and melting glass equipment; Safety rules for plasma apparatus;. --- Part 5 --- 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. for liquid metal electromagnetic stirring, transport or pouring of the special requirements of the device; --- Part 13. Electric apparatus for explosive atmosphere of special requirements. This is Part 13 GB 5959's. In addition to this section, the rest of the GB 5959 are used IEC 60519 "Safety of electric devices" each part of the development of corresponding. This part is proposed by the China Electrical Equipment Industrial Association. This part of the National Electric Equipment Industry Standardization Technical Committee centralized. This section drafted by. Institute of Xi'an furnace, Eagle Furnace Co., Ltd. Zhuzhou. The main drafters of this section. Fanchao Ying, Yang Zhigang. This section first formulated. Safety - Part 13 electric means. having Particular requirements for electric apparatus for explosive atmosphere

1 Scope

This section provides for an electric apparatus having an explosive atmosphere and the special requirements relating to personal safety devices. This section applies to an electric device having an explosive atmosphere, such as the work by flammable or explosive solution infiltration after paint drying, curing and drying Furnaces and other similar products. This section does not apply to protective atmosphere or controlled atmosphere electric devices. This section should be used in conjunction with GB 5959.1.

2 Normative references

The following documents contain provisions which, through reference in this Part of GB 5959 constitute provisions of this section. For dated references, All subsequent amendments (not including errata content) or revisions do not apply to this section, however, encourage the agreement on this section Whether the parties can study the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 2900.23-1995 Electrotechnical terminology Industrial Heating Equipment (neqIEC 60050-841. 1983) GB 3836.1-2000 Electrical equipment for explosive gas atmospheres - Part 1. General requirements (idt IEC 60079-0.1998) GB 3836.13-1997 Electrical apparatus for explosive gas atmospheres - Part 13. check for explosive gas atmospheres electrical equipment Repair (neqIEC 60079-19.1993) GB 3836.14-2000 Classification of hazardous areas (idt IEC 60079-10.1995) GB 3836.15-2000 explosive gas atmospheres Electrical Equipment Part 15. Electrical installations in hazardous locations (eqv IEC 60079-14.1996) GB 5959.1-2005 Safety of electric devices - Part 1. General requirements (IEC 60519-1.2003, IDT) GB 50058-1992 explosion and fire hazard electrical installation design specifications

3 Terms and Definitions

GB/T 2900.23-1995 GB 5959.1-2005 and well established in the following terms and definitions apply to this section. 3.1 Due to chemical changes in the formation of a sharp rise in pressure phenomena. Combustible gas in the sealed space, the total area of the instantaneous combustion. 3.2 Under atmospheric conditions of flammable substances in the gas or vapor and air mixture formation, combustion will spread rapidly after ignition, explosion may occur Fried atmosphere. 3.3 Explosive atmosphere is the lowest temperature of ignition under specified conditions. 3.4 One kind of flammable gas or vapor and air mixture can range explosion occurred. Combustible gas contains a concentration of the air or Steam encounter sparks will make the spread of fire explosion, known as the minimum concentration of the lower explosive limit, the highest concentration is called the explosion limit. Inflammability If the concentration of gas or vapor above or below this range will not explode. 3.5 The amount of solvent into the workpiece in the furnace.

4 voltage electric apparatus according to sector classification

According to Chapter 4 GB 5959.1-2005 safety requirements for specific provisions.

5 electric apparatus by category frequency zone

Chapters 5 and according to GB 5959.1-2005 safety requirements for specific provisions.

6 General requirements

In addition to these supplements, but according to GB 5959.1-2005 Chapters 6 and safety requirements for specific provisions. 6.1 Heating Equipment 6.1.1 Furnace Design 6.1.1.1 furnace chamber to avoid the possibility of local overheating generation. It should be equipped with temperature indicator (display), temperature control, over-temperature Control instruments. Design 6.1.1.2 furnace shell and the workpiece transport mechanism, should ensure that the device does not occur during normal operation due to local friction, collisions Fire. 6.1.1.3 When using the conveyor chain workpiece, with a low flash point mechanical lubricant. 6.1.1.4 Place the furnace should be set to be processed workpiece mounting bracket. 6.1.1.5 Fixation, furnace shell and the insulation layer must be non-flammable material. 6.1.2 heating element 6.1.2.1 The heating element should have sufficient strength, such as the use of frangible heating element, should guard against mechanical damage caused by fire And electric shock. 6.1.2.2 The heating element surface temperature should not exceed the workpiece release flammable and explosive gas ignition temperature of 80%. 6.1.2.3 resistive heating elements tubular heating elements should be used to prevent fire caused by burning. Tubular heating element jacket should be airtight , And is made of a material resistant to oxidation at operating temperature. 6.1.2.4 Setting the heating elements should be considered flammable surface of the workpiece, explosive solution should not drip on the heating element surface. 6.1.3 air circulation and ventilation safety 6.1.3.1 Ventilation systems should not be used for natural ventilation, air circulation system should be set up to provide sufficient air to the furnace the furnace chamber flammable, Does not produce explosive gases accumulate ensure flammable, explosive gases highest volume concentration should not exceed 25% of the lower explosive limit. 6.1.3.2 vent should be set at the highest area of flammable, explosive gas concentrations. 6.1.3.3 Each unit should set up a separate exhaust pipes, exhaust duct should share with other devices. 6.1.3.4 Multi-zone furnace, allowing a set exhaust manifold, but under various working conditions, each branch displacement provided not less than Dollars. 6.1.3.5 ventilation system using air flow control valve in the system to adjust the normal range should be able to achieve the required air flow and set the valve Minimum safe opening of the limiter. 6.1.3.6 Air circulation blower and exhaust system used must be provided with reliable measures to prevent sparks. 6.1.3.7 exhaust pipe and manhole should maintain good air tightness. 6.1.4 Control and Interlocking 6.1.4.1 should be set to automatic temperature control and over-temperature alarm device to ensure that explosive gases below the ignition temperature. 6.1.4.2 forced ventilation stove, after circulating fan and exhaust fan starts to start the heating system and the work conveying system. plus After the heating system and the work conveyance system is shut down, the fan to stop running. Ventilation failure of the heating system should be self-closing. 6.1.4.3 Setting ventilation safety monitoring device in the furnace, the concentration of combustible gas detection and alarm systems should be interlocked with the heating system. 6.1.5 Explosion relief and 6.1.5.1 furnace room should set the appropriate size and intensity of the action or explosion-proof gate valve. Per cubic meter furnace volume should be set not less than 0.05m2 relief area. 6.1.5.2 blast doors or position of the valve and mechanical strength should be able to ensure the release of the internal pressure to not endanger regional staff. 6.2 Electrical Equipment Electrical equipment design, installation, maintenance should be consistent with GB 50058-1992, GB 3836.1-2000 and GB 3836.13-1997, GB 3836.14-2000GB 3836.15-2000 and safety requirements for specific provisions. 6.2.1 motor used on the stove, should comply with the relevant explosion-proof electrical standards. 6.2.2 stove Under normal operating conditions, the entire current flows through the conductor does not cause nearby components, insulation materials and electric devices out Now dangerous fever. 6.2.3 The selected arrangement of electrical equipment should be noted that it is not in normal operation due to the harmful effect of the atmosphere and damage. 6.2.4 heating element and the furnace temperature insulation resistance should not be less than 1MΩ. 6.2.5 furnace shell must be grounded, grounding resistance should be less than 10Ω. 6.2.6 should be set static protection grounding, the grounding resistance should be less than 100Ω. 6.2.7 should ensure good electrical contact. When electrical equipment in order to avoid the line insulation strength is reduced or destroyed, resulting in live shell or an electrostatic device Electrostatic induction makes equipment enclosure gathered; fasteners should be avoided due to corrosion caused by the grounding resistance increases, the spark discharge to ground, to form an explosive gas Mixture ignition source. 6.2.8 wire heating element and should be reliable electrical connection terminals location should be easy to check. The introduction of the heating element should be sealed Reliable, to prevent leakage of furnace gas. 6.3 Installation 6.3.1 the siting of the furnace arrangement, we should first take into account as far as possible away from the high-pressure electrostatic effects work area and have flammable objects Kobo, Warehouses and densely populated areas. 6.3.2 exhaust duct from the ground within 2m (over 70 ℃) should be added protective measures to avoid burns staff. 6.4 Other 6.4.1 For labor racking workpiece large batch furnace, and the furnace door should set security indoor signaling device to prevent staff accidentally shut In the furnace chamber. 6.4.2 The device should be low-noise products.

7 isolation and opening and closing

Chapters 7 and according to GB 5959.1-2005 safety requirements for specific provisions.

8 is connected to the grid connection and internal

Chapters 8 and according to GB 5959.1-2005 safety requirements for specific provisions.

9 electric shock protection

Chapter 9, according to GB 5959.1-2005 safety requirements for specific provisions. 10 overcurrent protection Chapter 10 and by GB 5959.1-2005 safety requirements for specific provisions. 11 Equipotential bonding By chapter 11 of GB 5959.1-2005 safety requirements for specific provisions. The control circuit 12 and control functions Chapter 12 by GB 5959.1-2005 safety requirements for specific provisions. Protective Effect of heat 13 According to chapter 13 GB 5959.1-2005 safety requirements for specific provisions. 14 fire, explosion-proof, anti-suffocation, and poisoning Except for the following additional provisions, the rest should be GB 5959.1-2005 Article 14 and the relevant regulations and special safety requirements in this section Chapter 6 Supplementary Provisions. 14.1 should be strictly in accordance with the manufacturer's instruction manual to operate. 14.2 should take effective measures against possible leakage of flammable, explosive gases or harmful gases to harmless treatment in a timely manner, so as not to cause Explosion or damage to the health of staff. Proposed measures include. --- Exhaust gas emission standards should be consistent with the provisions of the environmental protection department of the atmosphere; --- To keep the workplace good ventilation, exhaust set the necessary measures, strong exhaust gas treatment when necessary; --- Setting explosive gases and harmful gas monitoring devices in the workplace, an alarm signal when it exceeds safe concentration and automatically Start strong exhaust system; --- Provide the necessary fire-fighting equipment and first aid equipment and supplies; --- Other necessary measures. 15 nameplates, tags, and technical documents Except for the following additional provisions, the rest according to GB 5959.1-2005 chapter 15 for specific security requirements. 15.1 should complement the content of the technical data on the nameplate. --- Furnace chamber working volume, in units of cubic meters (m3); --- The maximum operating temperature, in degrees Celsius (℃); --- Suitable solvents name; --- The maximum allowable amount of the solvent; NOTE. The continuous in kilograms per hour (kg/H); batchwise units per kilogram (kg/time). --- Nominal displacement, in units of cubic meters per hour (m3/h); --- Other data security technologies. 15.2 pairs of electric apparatus having an explosive atmosphere should be striking at the electric furnace apparatus or with one or more of the necessary text clearly marked The following or equivalent warning. caveat Furnace atmosphere explosion hazard 16 electric device to check, put into operation, use and maintenance Except for the following additional provisions, the rest according to GB 5959.1-2005 Chapters 16 and for specific security requirements. Run 16.1 explosive atmosphere electric device should strictly abide by state or local authorities to develop safe practices to prevent Stop explosion, poisoning and suffocation hazard. In the operator's manual should be listed in the safety practices to be followed in the name and code, Combined with the characteristics of the product for the safe operation of specific provisions or supplements. Such as. --- Workpiece is processed not to direct the heating element; --- Workpieces into the furnace chamber should not be more than paint (solvent) dripping; --- Heating system before starting, the chamber must be thoroughly ventilated; --- Furnace interior (including heating transport vehicles, conveyor systems remain in the chamber artifacts, etc.) due to sagging paint dirt accumulation should be cleared up; --- Other supplementary regulations. Instructions should also include the case of explosion, emergency measures and rescue methods of suffocation or poisoning danger. 16.2 Delivery shall be carried out following the safety device performance testing prior to use. --- Displacement designer provisions; --- Concentration alarm (or controller), temperature control and over-temperature alarm instrument calibration; --- Check the explosion-proof device; --- Other inspection items. 16.3 The user should carry out regular safety inspections in accordance with the technical documentation provided by the manufacturer. 16.4 When it is necessary to enter the oven chamber for inspection and maintenance operations, it should first cut off the power supply and ensure that the heating system before entering the chamber and When the furnace to stay indoors furnace of explosive gases and harmful gases it has been replaced in concentrations within safe limits. Staff in the oven interior job The use of power tools and explosion-proof lighting fixtures should have, and should someone outside the furnace the furnace real-time monitoring of personnel. ......

Image