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GB 16636-2008 English PDF

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GB 16636-2008: Code of safety for driver use of electricity underwater
Status: Valid

GB 16636: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB 16636-2008419 Add to Cart 3 days Code of safety for driver use of electricity underwater Valid
GB 16636-1996559 Add to Cart 4 days Technical regulations for diversafe use of electricity under water Obsolete

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GB 20826   

Basic data

Standard ID: GB 16636-2008 (GB16636-2008)
Description (Translated English): Code of safety for driver use of electricity underwater
Sector / Industry: National Standard
Classification of Chinese Standard: R54
Classification of International Standard: 03.220.40; 13.100
Word Count Estimation: 18,137
Date of Issue: 2008-06-19
Date of Implementation: 2009-01-01
Older Standard (superseded by this standard): GB 16636-1996; GB 17869-1999
Quoted Standard: GB 6722; GB/T 16560
Regulation (derived from): Announcement of Newly Approved National Standards No. 10 of 2008 (total 123)
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 specifies the underwater with divers about the various underwater electrical equipment, as well, although a direct relationship with the underwater operation, but may be hazardous to a variety of jobs diver underwater electrical construction, electrical safety aspects of facilities basic requirements, including the use of environmental, technical requirements, installation, and emergency measures. This standard applies to the diver diving apparatus, equipment, systems, tools, structure, facility, as well as the safe use of electricity underwater operations.

GB 16636-2008: Code of safety for driver use of electricity underwater

---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.
Code of safety for driveruse of electricity underwater ICS 03.220.40; 13.100 R54 National Standards of People's Republic of China Replacing GB 16636-1996, GB 17869-1999 Diver underwater electrical safety regulations Posted 2008-06-19 2009-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Environment 2 5 Technical requirements 5 6 installation and operation 7 7 emergency measures 11 Appendix A (informative) human safety Current 12 Annex B (informative) underwater safety distance 14

Foreword

All the technical contents of this standard is mandatory. This standard mainly with reference to the International Marine Contractors Association (IMCA) "underwater electrical safety code of practice" (AODC035), on GB 16636-1996 "diver underwater electrical safety technical specifications" and GB 17869-1999 "diver underwater electrical safety rules" Integration amendment and in accordance with GB/T 1.1-2000 requirements be modified editorial. This standard replaces GB 16636-1996 "diver underwater electrical safety technical specifications" and GB 17869-1999 "diver underwater use Electrical safety procedures. " This standard will be incorporated into the main content of GB 17869-1999 GB 16636-1996, and remove the two standards Overlapping narrative text. Appendix A of this standard and Appendix B is an informative annex. The standard proposed by the People's Republic of China Ministry of Transportation. This standard is under the jurisdiction of the Ministry of Communications and salvage underwater engineering Standardization Technical Committee. This standard was drafted. Shanghai Jiaotong University Institute of Marine Sciences underwater engineering. The main drafters. Zhang Guoguang, Dong Jianshun, Jing Yanlin, Wangbao Jian, He Xiuxia. This standard replaces the standards previously issued as follows. --- GB 16636-1996; --- GB 17869-1999. Diver underwater electrical safety regulations

1 Scope

This standard specifies the divers and underwater operations related to a variety of underwater electrical equipment, and underwater operations, although with no direct relationship, but it may It would pose a hazard in a variety of jobs diver underwater electrical structure, facility in terms of the basic requirements for safe use of electricity, including the use of environmental, technical Requirements, installation procedures, and emergency measures. This standard applies to tools, equipment, systems, tools, structure, facility, as well as electrical safety-related and diver underwater diving installed.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB 6722 Blasting Safety Regulations GB/T 16560 deck decompression chamber

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Avoid or prevent a variety of electrical devices may be provided by the use of underwater (or pressure tank) caused by divers hazards (such as. electric shock), and because Heating cause degradation of electrical insulating materials and toxic, explosive product, or because of the heated surface, faulty equipment, switchgear and other electrical generation Arc, spark ignited some of the damage caused to the mixed gas divers. 3.2 The entire device and the system can transport divers diving operations at desired pressure (including. deck decompression chamber, diving bell, underwater Working spaces and personnel transport tanks, etc.) and various types of diving, as well as divers in diving operations should dress, or to maintain the harness Peigua (Eg. wetsuit, scuba, umbilical cord and communications equipment, etc.). 3.3 One kind of transport divers in case of emergency means the pressure vessel, one of the main equipment of diving systems. Divers Emergency transport system The system is equipped with a gas, electrical and audio-visual detection device can be in contact with their counterparts in the deck decompression chamber. Also known as. personnel transport compartment. 3.4 Tools diver when used underwater, equipment and instruments. 3.5 Large-scale installations and structures in the long-term underwater work, such as. impressed current cathodic protection systems, subsea oil and gas production systems, subsea pipelines and water Under the cables. 3.6 Nearby underwater electrical equipment in normal use, such as. the environment in which the pressure, gas, temperature, humidity, and divers love the dress And other conditions. 3.7 It can be allowed to flow through the body of the diver maximum current. 3.8 When the voltage gradient occurs in the water will not harm diver, divers minimum distance from a charged body. 3.9 A setting in the vicinity of the work area, used to complete the cabin structure underwater welding and other work. Under the pressure of the outside world of the sea, the work chamber The interior has a dry and moderate gas environment. 3.10 By electrical heating mode, warm heat generation diver underwater diving suit, pants, gloves, hats, etc. are necessary. 3.11 A variety of small devices during diving operations carried by a diver, such as. cameras, underwater lighting, power hand tools and non-destructive testing (NDT) devices. 3.12 The seabed by electric drive for a variety of work tools, equipment powered hydraulic pump or power source. 3.13 Take fully insulated, or perfectly conducting, or insulating and conducting combined and other measures to avoid the potential causes of the water caused by the potential gradient electric shock hazard Water service. 3.14 Under water wet environmental conditions implemented by welding and cutting operations. 3.15 One kind of a pressure-regulator tanks and self-propelled submersible. After when necessary, by divers from the water into the surge tank regulator submersible, Or go out to the water from inside the submersible. Also known as. the regulator out of submersible device (LILOS).

4 Environment

4.1 deck cabin decompression and emergency transport systems 4.1.1 Pressure. 0MPa ~ 6MPa, but generally 0MPa ~ 3MPa, and can change at different rates. 4.1.2 Environment. 0MPa ~ 0.6MPa compressed air; or an oxygen partial pressure of not more than 0.06MPa and an oxygen concentration of not more than 23% oxygen Mixture. 4.1.3 Temperature. saturated cabin is 25 ℃ ~ 35 ℃, cabin air is 0 ℃ ~ 50 ℃. 4.1.4 Humidity. cabin relative humidity of 50% to 75%, under special circumstances, a brief rise to 100%. 4.1.5 diver dress. wearing thin non-electrical protection clothing. 4.2 The Diving Bell and provided guillotine submersible 4.2.1 Pressure. 0MPa ~ 6MPa, but generally 0MPa ~ 3MPa, and rapidly changing. 4.2.2 Environment. 0MPa ~ 0.6MPa compressed air; or an oxygen partial pressure of not more than 0.06MPa and an oxygen concentration of not more than 23% oxygen Mixture. 4.2.3 Temperature. inner equipment for 25 ℃ ~ 35 ℃, special cases can be reduced to 10 ℃. External at 0 ℃ ~ 30 ℃, but is usually at 5 ℃ ~ 15 ℃. 4.2.4 Humidity. high relative humidity inside the device, external exposure to seawater splash zones, and it can be submerged. 4.2.5 diver dress. wearing thin non-electrical protection clothing. 4.3 Underwater working spaces 4.3.1 Pressure. 0MPa ~ 6MPa, but generally 0MPa ~ 3MPa. 4.3.2 Environment. 0MPa ~ 0.6MPa compressed air; or an oxygen partial pressure of not more than 0.06MPa and an oxygen concentration of not more than 23% oxygen Mixture. 4.3.3 temperature. Internal temperature 5 ℃ ~ 40 ℃, if in a very small cabin, the temperature can rise to special circumstances 60 ℃. 4.3.4 Humidity. fully submerged in the water under the outside pressure. During operation, a relative humidity of 70% to 100%. 4.3.5 Diver Dress. Wear rubber wetsuit, conventional heat welding clothes or clothes. 4.4 Electric wetsuit 4.4.1 Pressure. 0MPa ~ 6MPa, but generally 0MPa ~ 3MPa, does not change rapidly. 4.4.2 Environment. When the diver enters or leaves the diving bell, the environment is 0MPa ~ 0.6MPa compressed air; or an oxygen partial pressure of not more than 0.06MPa and an oxygen concentration of not more than 23% of the oxygen-containing gas mixture. In support of the water diving, the diver enters or leaves the table ocean When the surface, atmospheric pressure environment. 4.4.3 temperature. depend on the depth of which the water temperature, usually at 5 ℃ ~ 15 ℃. 4.4.4 Humidity. the external environment is usually water. 4.4.5 Diver Dress. Wear rubber wetsuit. 4.5 manned submersible 4.5.1 pressure. internal pressure remains in the atmospheric environment, the external pressure depending on the depth of the job. 4.5.2 environment. an oxygen partial pressure of not more than 0.06MPa and an oxygen concentration of not more than 23% of the oxygen-containing gas mixture. 4.5.3 Temperature. The internal temperature of 10 ℃ ~ 25 ℃, 2 ℃ can temporarily lowered or raised to 35 ℃. The exterior is of deep seawater temperature, That is 0 ℃ ~ 30 ℃. 4.5.4 Humidity. cabins, relative humidity is high; EVA, from the atmosphere (splash or immersion zone) to the sea. 4.5.5 Diver Dress. wear ordinary clothing or rubber diving suit. 4.6 ROV 4.6.1 Pressure. Once fully into the water, the external pressure is the pressure of the surrounding water environment. The pressure in the submersible launching or recovery , It will quickly change. 4.6.2 Environment. the device is fully submerged in seawater. 4.6.3 Temperature. Water temperature changes from 0 ℃ ~ 30 ℃. 4.6.4 Humidity. external environment is water. 4.6.5 Diver Dress. Wear rubber wetsuit. 4.7 umbilical cord 4.7.1 pressure. pressure depends on water depth, the range 0MPa ~ 6MPa, but generally 0MPa ~ 3MPa. Pressure change rapid. 4.7.2 environment. air, mist or splashing water. 4.7.3 Temperature. immersion in seawater at a temperature of 0 ℃ ~ 30 ℃, special circumstances may be less than 0 ℃ or up to 50 ℃. 4.7.4 Humidity. from the atmosphere (splash or immersion zone) to the sea. 4.7.5 Diver Dress. Wear rubber wetsuit. 4.8 handheld devices 4.8.1 pressure. depending on water depth pressure range 0MPa ~ 6MPa, but generally 0MPa ~ 3MPa. Pressure change rapid. 4.8.2 environment. air, splash or completely submerged in the sea fog, you can also enter 0.6MPa compressed air or helium pressure of 6MPa Oxygen gas mixture environment. 4.8.3 Temperature. immersion in seawater at a temperature of 0 ℃ ~ 30 ℃, but is generally 5 ℃ ~ 15 ℃. 4.8.4 Humidity. from the atmosphere (splash or immersion zone) to the sea. 4.8.5 Diver Dress. Wear rubber wetsuit. 4.9 subsea equipment 4.9.1 Pressure. 0MPa ~ 6MPa, but generally 0MPa ~ 3MPa. 4.9.2 environment. air, mist or splashing water. 4.9.3 Temperature. immersion in seawater at a temperature of 0 ℃ ~ 30 ℃, but is generally 5 ℃ ~ 15 ℃. 4.9.4 Humidity. from the atmosphere (splash or immersion zone) to the sea. 4.9.5 Diver Dress. Wear rubber wetsuit. 4.10 Wet Welding and Cutting 4.10.1 Pressure. 0MPa ~ 6MPa, but generally 0MPa ~ 3MPa. 4.10.2 Setting. atmospheric, mist or splashing water. 4.10.3 Temperature. immersion in seawater at a temperature of 0 ℃ ~ 30 ℃, but is generally 5 ℃ ~ 15 ℃. 4.10.4 Humidity. from the atmosphere (splash or immersion zone) to the sea. 4.10.5 Diver Dress. Wear rubber wetsuit or heavy diving suit, helmet wrap a thin rubber or insulating film, wear rubber gloves. 4.11 plus current device 4.11.1 Pressure. 0MPa ~ 3MPa. 4.11.2 Setting. atmospheric, mist or splashing water. 4.11.3 Temperature. immersion in seawater at a temperature of 0 ℃ ~ 30 ℃, but is generally 5 ℃ ~ 15 ℃. 4.11.4 Humidity. from the atmosphere (splash or immersion zone) to the sea. 4.11.5 Diver Dress. Wear rubber wetsuit. 4.12 power equipment 4.12.1 Pressure. 0MPa ~ 3MPa. 4.12.2 Setting. atmospheric, mist or splashing water. 4.12.3 Temperature. immersion in seawater at a temperature of 0 ℃ ~ 30 ℃, but is generally 5 ℃ ~ 15 ℃. 4.12.4 Humidity. from the atmosphere (splash or immersion zone) to the sea. 4.12.5 Diver Dress. Wear rubber wetsuit. 4.13 water distribution equipment 4.13.1 Pressure. atmospheric environment. 4.13.2 Setting. from dry, warm air-conditioned room conditions until the exposed deck of the ship (wind, rain, waves and vibration). 4.13.3 Temperature. depends on the temperature of their environment, usually in the 0 ℃ ~ 50 ℃. 4.13.4 Humidity. from dry atmosphere until the splash zone. 4.13.5 Diver Dress. wear ordinary clothing or rubber diving suit. 4.14 underwater explosive device 4.14.1 Pressure. 0MPa ~ 6MPa, but generally 0MPa ~ 3MPa. 4.14.2 Setting. atmospheric, mist or splashing water. 4.14.3 Temperature. immersion in seawater at a temperature of 0 ℃ ~ 30 ℃, but is generally 5 ℃ ~ 15 ℃. 4.14.4 Humidity. from the atmosphere (splash or immersion zone) to the sea. 4.14.5 Diver Dress. Wear rubber wetsuit. 4.15 Battery 4.15.1 Pressure. atmospheric environment. 4.15.2 Setting. completely watertight. 4.15.3 Temperature. depends on the temperature of their environment, typically 0 ℃ ~ 50 ℃. 4.15.4 Humidity. dry. 4.15.5 Diver Dress. wear ordinary clothing or rubber diving suit. 4.16 Insulation Materials 4.16.1 Pressure. 0MPa ~ 6MPa, but generally 0MPa ~ 3MPa, and can change at different rates. 4.16.2 Setting. from dry, warm air-conditioned room conditions until the exposed deck of the ship (wind, rain, waves and vibration). 4.16.3 Temperature. depends on the temperature of their environment, typically 0 ℃ ~ 50 ℃. 4.16.4 Humidity. from dry atmosphere until the splash zone. 4.16.5 Diver Dress. wear ordinary clothing or rubber diving suit.

5 Technical requirements

Basic requirements 5.1 underwater electricity and water distribution equipment Design, construction, installation and testing of electrical devices 5.1.1 underwater electrical equipment and water distribution equipment shall comply with the relevant provisions of the State. 5.1.2 AC power through isolation transformer should. a) as from ungrounded secondary isolation transformer should be used with a circuit breaker line insulation monitor. b) if there is secondary from ground isolation transformer should be used with a protection device automatically tripped, and reliable grounding alarm device Home, limiting their fault current is less than 1A. 5.1.3 automatic trip device operation response time of less than 20ms, and should be able to re-adjust the diving supervision after the necessary security checks whole. Also, these devices should be equipped with overload protection device can be re-adjusted by the diving operation supervised. Electrical System 5.1.4 underwater equipment shall not be used for its metal shell circuit, the circuit protection device shall be provided to automatically trip Overload and circuit protection. Metal structural components 5.1.5 underwater equipment should be grounded, grounding resistance is not greater than 4Ω, and has sufficient mechanical strength. 5.1.6 For all power divers underwater use, you should use an isolation transformer or a separate generator. 5.2 deck cabin decompression and emergency transport systems 5.2.1 Power Voltage deck cabin decompression and emergency transport system shall comply with the requirements in Table 1. Table 1 condition Current human security / mA Impedance current path / Voltage/ Maximum rated AC automatic tripping device Automatic trip device DC No automatic tripping AC unit DC without automatic tripping device 7.5 Voltage (V) = current safety to human body (A) × current path impedance (Ω). Wherein calculating the current human safety, see Appendix A. 5.2.2 Each insulated distribution system shall be provided with a ground breaking or leakage detection alarm device, insulation resistance value is not less than 5MΩ. When the power supply test equipment 5.2.3 AC 220V, excitation voltage of various sensors should not exceed 10V (typical current 15mA). The instrument shall be protected associated with the sensor. 5.2.4 other relevant provisions, in accordance with GB/T 16560 of the relevant provisions. 5.3 The Diving Bell and provided guillotine submersible 5.3.1 The Diving Bell and provided guillotine submersible electric voltage, should meet the requirements of Table 1. 5.3.2 Diving bell inside the clock power for 24V DC power supply by the diving bell mounted on the outer surface of the water pressure vessel and the rectifier transformer power supply provide. 220V AC 5.3.3 for diving bell exterior lighting shall have a current limit fault isolation transformer and residual current protection Active Protection System device (RCD) is constituted to provide power protection. 5.4 Underwater working spaces 5.4.1 underwater work spaces voltage electricity, should meet the requirements of Table 1. 5.4.2 cabin working power (eg. preheat power and portable power tools, etc.) should be carried out on-line monitoring through wire insulation monitor. 5.4.3 tank umbilical cable insulation resistance should continuously monitor the situation through the wire insulation monitor. Wire insulation monitor can be monitored via the drain Resistance, and provides continuous readings to monitor changes in the circuit insulation. 5.5 manned submersible 5.5.1 manned submersible electric voltage electrical equipment facility shall comply with the requirements of Table 1. The cockpit is not greater than the DC supply only 24V power for life support and control circuits. 5.5.2 Place the transformer and rectifier power supply for treatment submersible vessel loop and control equipment, should be placed outside the submersible. 5.6 ROV 5.6.1 ROV use of AC power by 380V (440V) transformer three-phase AC power supply system of the ship and through the umbilical cord electric Cable through the isolation transformer provides. 5.6.2 ROV and diver joint operations, should take appropriate safety measures, such as. diver should wear a full wetsuit anti-power Conduct operations. 5.7 umbilical cord 5.7.1 umbilical cable should have sufficient tensile strength, while measures should be taken so that it does not withstand tensile loads. 5.7.2 umbilical cord may be external voltage electricity diver or related personnel touch electrical equipment shall comply with the requirements given in Table 1. 5.7.3 The umbilical cable protective measures should take the initiative, and the power line access is provided on the surface of the isolation transformer. 5.8 handheld devices 5.8.1 diver portable equipment should be durable, reliable insulation. Power Voltage 5.8.2 diver handheld devices shall comply with the requirements given in Table 1. 5.9 subsea equipment 5.9.1 High-power subsea equipment (such as. the suction dredging pump), power to the motor through the umbilical cord from the surface of 380V (440V) for three-phase AC Electrical system, ensure insulation and a grounded shield performance of the primary umbilical cable to the motor connector. 5.9.2 Auxiliary eq......
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