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GB 26123-2010: The safety requirement for air diving
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The safety requirement for air diving
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Basic data
| Standard ID | GB 26123-2010 (GB26123-2010) |
| Description (Translated English) | The safety requirement for air diving |
| Sector / Industry | National Standard |
| Classification of Chinese Standard | R09 |
| Classification of International Standard | 03.220.40; 13.100 |
| Word Count Estimation | 25,264 |
| Date of Issue | 2011-01-14 |
| Date of Implementation | 2011-07-01 |
| Quoted Standard | GB 150; GB 5099; GB 6095; GB/T 6096; GB/T 12243; GB/T 12521; GB/T 12930; GB 13004; GB/T 16560; GB/T 17870; GB 18435; GB 18935; GB 20827; GBZ 24; JT/T 207; JJG 49; JJG 52; TSG R7001 |
| Regulation (derived from) | Announcement of Newly Approved National Standards No. 2 of 2011 (No. 167 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 specifies the compressed air as breathing air diving on media personnel, equipment and systems and procedures. This standard applies to diving depth shallower than 60m air diving, also applies to less exposure to 0. 6MPa compressed analog diving. |
GB 26123-2010: The safety requirement for air diving
---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.
The safety requirement for air diving
ICS 03.220.40; 13.100
R09
National Standards of People's Republic of China
Diving air safety requirements
Issued on. 2011-01-14
2011-07-01 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, Definitions and Abbreviations 1
4 personnel requirements 2
Equipment and System Requirements 2 5
6 Program Requirements 8
Appendix A (normative) loaded with site inspection and test equipment and systems 13
Record Annex B (normative) diving reporting requirements 19
References 21
Foreword
All the technical contents of this standard is mandatory.
The Association of Diving Contractors International reference standard "commercial diving and underwater operations accepted standards" (fifth edition, 2004) and the International Maritime contractors
Association "International practice for offshore diving" (1998), "The Diving equipment and systems checks Guide. water-based diving systems (air)"
(2000), "The Diving equipment and systems checks Guide. mobile/portable water supply system" (2006), and the UK Health and Safety Authority "latent
Water Work "(1997), US Department of Labor Occupational Safety and Health Administration" Occupational Safety and Health Standards "(1996) and the US Department of Homeland Security sea
Coast Guard "Maritime Occupational Safety and Health Standards" (1989) about the content developed.
The Standard Annexes A and B are normative appendix.
The standard proposed by the Ministry of Transport of the People's Republic of China.
This standard is under the jurisdiction of the Ministry of Communications and salvage underwater engineering Standardization Technical Committee.
This standard was drafted. the Ministry of Communications Shanghai Salvage Bureau, Shenzhen City Industrial Co., Ltd. Ye Shan.
The main drafters of this standard. the Army, Gen-liter, Zhang Hui, leaves like Qiu, Xiao Xiaoling, Pan Mingguang, Liumu Liang, Xu Jin, Guo Xiaoping, Zhang Lei.
Diving air safety requirements
1 Scope
This standard specifies the medium of compressed air as breathing air diving personnel, equipment, and systems and procedures.
This standard applies to diving in shallow depth of 60m air diving, but also to be exposed to less than 0.6MPa compressed air simulation
diving.
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 150 steel pressure vessels
GB 5099 seamless steel gas cylinders (GB 5099-1994, neqISO 4705. 1983)
GB 6095 belts
GB/T 6096 Test Method for seat belt
GB/T 12243 Spring loaded safety valves (GB/T 12243-2005, JISB8210.1994, MOD)
GB/T 12521 requirements for air diving decompression technology
GB/T 12930 diving apparatus with high-pressure piston-type air compressor for
GB 13004 seamless steel gas cylinders Periodic inspection and evaluation
GB/T 16560 deck decompression chamber
GB/T 17870 technical requirements for treatment of decompression sickness pressurized
GB 18435 and diving breathing gas detection method
GB 18985 Diver air supply
GB 20827 divers physical requirements
GB Z24 occupational sickness diagnostic criteria
JT/T 207 69-Ⅲ type light diving apparatus
JJG49 Bourdon Tube Precise pressure gauge and vacuum meter testing procedures
JJG52 spring tube general pressure gauges, pressure vacuum gauge and vacuum meter testing procedures
TSGR7001 periodic pressure vessel inspection rules
3 Terms, definitions and abbreviations
3.1 Terms and Definitions
The following terms and definitions apply to this standard.
3.1.1
Diving care staff divingtender
Assist divers in the water into the water, and watch divers umbilical cord signal, and continued to master diver in water workers state.
3.1.2
Divers prepare standbydiver
Dressed in diving station on standby, ready to be able to aid the water into the water diver diver in distress, also known as standby diver.
3.1.3
Diving supervision divingsupervisor
Dive Leader solely responsible for the diving operation and the implementation of safety, by written appointment diving practitioners units.
3.1.4
Life support member lifesupporttechnician
Manipulate deck decompression chamber, the diver is responsible for cabin pressurization, and vacuum regulator to monitor environmental parameters cabin staff.
3.1.5
Diving radio operator divingtechnician
Responsible diving harness, equipment, systems and tools to use, management and maintenance personnel.
3.1.6
Diving cage divingcage, divingbasket
One kind of transport to and from the diver framed cage-type vehicle surface and underwater locations.
3.1.7
Open diving bell openbel
One kind of transport to and from divers and underwater water carrying equipment between locations, and its upper end is dome compressed air environment, diving
Members may be above the shoulder portion into which the rest exposed to water.
3.2 Acronyms
The following abbreviations apply to this standard.
BIBS --- Built-contained breathing apparatus (built-inbreathingsystem)
CCS --- China Classification Society (Chinaclassificationsociety)
DP --- Dynamic Positioning (dynamicpositioning)
JSA --- Job Safety Analysis (jobsafetyanalysis)
PTW --- Work Permit (permittowork)
ROV --- ROV (remotelyoperatedvehicle)
SCUBA --- self-contained underwater breathing apparatus (self-containedunderwaterbreathingapparatus)
4 personnel requirements
The standard refers to divers, including divers, diving supervision, diving care staff, prepare divers, diving radio operator, life support members
And diving physician, with its training requirements, certification, and management should comply with the relevant requirements of the competent authorities. Engaged in underwater operations or need to go to high gas
Physical condition pressure environment personnel shall comply with the requirements of GB 20827.
5 Equipment and System Requirements
5.1 Individual harness
5.1.1 This standard is referred to harness individual diving mask or helmet, wetsuit, safety harness individual divers wear directly or wear,
Ballast with emergency gas cylinders, flippers, diving knives and buoyancy vest.
5.1.2 Individual various components of the harness should have an identification number, maintenance procedures and records.
5.1.3 surface supplied air diving mask shall meet the following requirements.
a) air supply meet the requirements of GB 18985;
b) Two-way voice communication device;
c) supply line is equipped with a check valve, the valve spring to withstand pressure less than 20kPa;
d) the use of corrosion-resistant materials;
e) over-voltage protection devices;
f) can be connected to the emergency gas cylinders;
g) easy detachment;
h) visual inspection once a year by the manufacturer authorized personnel, maintenance and performance testing.
5.1.4 water supply diving helmet should meet the requirements of 5.1.3, helmet safety device to prevent accidental disengagement from the neck brace.
5.1.5 Ventilation diving helmet should comply with 5.1.3 a) ~ e) and h) of the requirements, quick exhaust valve.
5.1.6 wetsuit material should be suitable for the environment, it has sufficient strength and harmless to human health.
5.1.7 dry suit should meet the requirements of 5.1.6, manual air supply, exhaust and overvoltage exhaust, heat preservation function, can prevent diving
The outside world harmful substances harm by members.
5.1.8 Hot water wetsuit should meet the requirements of 5.1.6 to provide adequate hot water and can withstand operating water temperature 44 ℃, have measured for divers
Test the water temperature of the bypass means to make hot water pumped through the bypass means is admitted or discharged hot water service.
5.1.9 safety harness shall comply with the following requirements.
a) according to the relevant requirements of GB 6095 design and manufacturing;
b) manufacturing materials can carry divers and individuals loaded with a load;
c) between the safety harness and the umbilical cord with a quick release buckle;
d) to prevent the strap from slipping divers;
e) junction with mask or helmet does not produce excessive traction;
f) When lifting diver, divers breathe without prejudice;
g) has two crotch strap;
h) have lifting divers "D" ring;
i) not equipped with pressure instead of lead weights belt use;
j) visual inspection every six months, according to GB 6095 and GB/T 6096 requirements to conduct a stress test every two years.
5.1.10 ballast shall comply with the following requirements.
a) manufacturing materials can carry the weight load pressure;
b) the counterweight and water diver buoyancy matching;
c) does not tie the umbilical cord with the Department;
d) rapid release buckle;
e) to prevent accidental release.
5.1.11 Emergency cylinders shall meet the following requirements.
a) according to the relevant requirements of GB 5099 design and construction;
b) there is a pressure reducer and a hose connected thereto, a pressure reducer to meet the divers face mask or helmet gas flow and pressure;
c) the overpressure safety device;
d) connected to the face mask or helmet does not accidentally fall off;
e) cylinder strap quick release;
f) filling the breathing gas line with GB 18435's requirements;
g) gas capacity to meet the diver to 10m/min rate of rise to the surface, or to reach the other alternate supply of emergency accommodation;
Composition and pressure of the gas h) identification and recording of the load;
i) once the degree of corrosion damage and visual inspection each year;
j) every six months Regulator performance test;
k) to a pressure reducer and connecting hose maximum working pressure leak test every year;
l) according to GB 13004 triennial inspection body.
5.1.12 SCUBA shall comply with JT/T 207 requirements, the amount of gas shall meet the requirements of GB 18985.
5.2 hose and cord
5.2.1 shall comply with the following general requirements.
a) nylon, polytetrafluoroethylene, polyethylene, urethane rubber, or a non-toxic antioxidant material;
b) minimum breaking pressure of not less than four times the maximum working pressure;
c) the maximum working pressure, flow rate not less than the requirements of the system or harness connected;
d) bearing pressure hose coupling hose connection is not less than the bearing pressure;
e) resistant to twisting or anti-twist;
F) When using hot water, temperature of not less than 44 ℃;
g) to conduct a visual inspection and hose assemblies 1.15 times the maximum working pressure pneumatic test every year;
h) after repair or modification, visual inspection and pressure test;
i) the identification number, maintenance procedures and records.
5.2.2 The hose should meet the following requirements.
a) for air transport;
b) the maximum working pressure not less than the maximum diving depth of the supply pressure plus 1MPa;
c) when the hose to withstand external pressure is greater than the internal pressure, without clashing.
5.2.3 umbilical cord should meet the following requirements.
a) from the connection endpoint diver or diving bell began to be identified, each 3m to make a mark in the 30m, 15m after each make a
mark;
b) assembly includes at least breathing gas hose, communications cable and sounding pipes;
c) material stress layer is not the long-term impact of flooding;
The minimum breaking pressure d) hose assembly includes an end fitting system no less than four times the maximum working pressure;
e) anti-corrosion material fixed buckle anti-shedding;
f) prepare diver's umbilical cord length than the diver's umbilical cord length 2m ~ 3m;
g) from a diving bell diver's umbilical cord length of 30m or less;
h) visual inspection every six months, 1.15 times the maximum working pressure of the pressure test and a communication cable performance test.
5.2.4 oxygen tube shall meet the following requirements.
a) for delivery of oxygen;
b) the "special oxygen" logo;
c) to use clean oxygen requirements;
d) oxygen tube fittings oxygen-compatible lubricants.
5.3 Gas Supply System
5.3.1 The standard refers to the gas supply system includes an air compressor, cylinders, filters, oil-water separators, high-pressure gas cylinders and gas transportation
Pipes and valves and the like.
5.3.2 The various components of the gas supply system should have an identification number, maintenance procedures and records.
5.3.3 air compressors shall meet the following requirements.
a) GB/T 12930 basic requirements;
b) meet the diving depth and working time gas pressure and flow;
c) hose to meet the requirements of 5.2.1;
d) high-pressure pipeline to meet the requirements of 5.3.6;
e) tank meets the requirements of 5.3.4;
f) power control system meets the requirements of 5.9;
g) is not pumping or mixing gas and oxygen delivery;
Before h) use, maintenance and performance testing after maintenance and modification.
5.3.4 tank shall meet the following requirements.
a) according to the relevant requirements of 150 GB of design and construction, installation on ships or offshore installations, but also with reference to CCS "diving systems and
Submersibles into the Classification and Construction, "the relevant provisions;
b) at the inlet check valve can be manually controlled or alternative gas backflow valve;
c) the bottom discharge valve;
d) the design pressure exceeds 3.45MPa when the slow start with the valve;
e) The pressure gauge and safety valve;
f) conduct an annual visual inspection body corrosion and pressure test the maximum working pressure;
g) or by reference to the container body by TSGR7001 CCS "diving systems and submersibles into the Classification and Construction," Carry out regular inspections pressure
Table Press JJG52 test every six months, the safety valve according to GB/T 12243 test once a year.
5.3.5 high-pressure gas cylinders shall meet the following requirements.
a) according to the relevant requirements of GB 5099 design and manufacturing;
b) cylinder valve overvoltage safety devices and protective cover;
There are cylinder valve and pressure reducer protective frame (cover) c) groups of the time of shipment;
d) before and after use to detect, identify and record its composition and pressure of the filling gas;
e) kept in a well-ventilated area to avoid the heat and prevent falling;
f) filling oxygen cylinders to be special, stored in an open area, open fire ban for identification;
g) to conduct a damage and corrosion visual inspection each year;
h) the cylinder body according to GB 13004 test every three years.
5.3.6 high-pressure pipeline should meet the following requirements.
a) reference to the relevant requirements of GB/T 20801 design and construction;
b) made of copper or stainless steel;
c) the orderly rows of cloth, and identify trends and their function;
d) air and oxygen line using a predetermined color or labels for easy identification;
e) the impact on vulnerable parts stamped with the protective cover;
The valve member f) pipeline on the selection of copper or stainless steel;
g) You can not use oxygen pipeline ball valves and stainless steel;
h) damage and conduct a visual inspection of corrosion and leakage test every year;
i) every three years, the maximum working pressure of 1.5 times the maximum working pressure of hydraulic test or 1.15 times the pressure test.
5.3.7 The filter should meet the following requirements.
a) comply with the requirements of 5.3.4;
b) meet or exceed the flow and pressure of the compressor or piping system;
c) according to frequency of use, periodically check and clean or replace the filter material.
5.3.8 oil-water separator shall meet the following requirements.
a) meet or exceed the flow and pressure of the compressor or piping system;
b) the bottom discharge valve;
c) every three years, the maximum working pressure of 1.5 times the maximum working pressure of hydraulic test or 1.15 times the pressure test.
5.3.9 Air purity requirements.
a) every six months should be a air purity test, the gas quality meets the requirements of GB 18435;
b) gas purity sampling and testing methods should be consistent with the requirements of GB 18435 in the test methods;
c) test results should be archived for easy reference.
5.4 deck decompression chamber
5.4.1 should be consistent with GB/T 16560 requirements, and when mounted on ships or offshore installations, but also with reference to CCS "diving systems and diving
Is the Construction and norms "the relevant provisions.
5.4.2 should be able to carry more than 0.5MPa working pressure.
5.4.3 outside the cabin should be two-way communication system, a communication system and emergency call devices.
5.4.4 pipes and cables out of the pods should be consistent cabin parts.
5.4.5 pipeline should be out of the pods and outside the cut-off valve.
5.4.6 internally pressurized cabin air intake silencer should be installed under reduced pressure vent should be installed anti suction guard.
5.4.7 Life cabin should be installed to display tank pressure gauge.
5.4.8 All valves, instrumentation, piping should identify its function.
5.4.9 All instrumentation shall comply with the relevant requirements of 5.10.
It should be a cabin (including the observation window) damage and corrosion visual inspection and pressure test 5.4.10 maximum working pressure of each year.
5.4.11 pods should TSGR7001 or reference to CCS "diving systems and submersibles into the Classification and Construction," Carry out regular inspections, safety
According to GB/T 12243 test once a year.
5.4.12 proper identification number, maintenance procedures and records.
Diving 5.5 Control Panel
5.5.1 connection between the breathing gas source and divers, diving control panel is used to control diving operations shall include at least the suction valve, exhaust valve,
Regulator, air pressure gauge, gas gauge, measuring deeply and communication devices.
5.5.2 for the gas pipeline should have at least two divers used independently.
5.5.3 should be respectively connected to the main gas source and emergency air interface.
5.5.4 should have more than two air pressure gauge.
5.5.5 divers should measure gas pressure gauges and deep.
Due to internal pressure relief vent pipe on the gas pipeline 5.5.6.
Gas sampling ports should be analyzed on a gas pipeline 5.5.7.
5.5.8 shall be identified valves, piping and instrumentation functions.
5.5.9 proper identification number, maintenance procedures and records.
5.6 into the water system
5.6.1 The standard refers to the water system should include diving ladder, diving and open-cage diving bell.
5.6.2 proper identification number, maintenance procedures and records.
5.6.3 dive ladder shall meet the following requirements.
a) be able to withstand the weight and the weight of the harness two divers;
b) manufactured from corrosion resistant materials or by the anti-corrosion treatment;
c) the length to meet the lower end can be placed below the water surface is not less than 1m, above the upper end of the dive station ground (or deck) is not less than 1m;
d) there is support for divers armrest.
5.6.4 diving cage shall meet the following requirements.
a) there is enough internal space, can accommodate two divers and harness;
b) can withstand the weight and the weight of the harness, and the weight of two divers work related tools;
c) manufactured from corrosion resistant materials or by the anti-corrosion treatment;
d) from the top rings (holes) and alternate lifting points;
e) The safety chain and internal handrails;
f) loss of consciousness diver fixed means;
g) There are more than two emergency air cylinder, its capacity to meet the needs rescue;
h) There regulator, direct supply respirators and breathing gas supply hose with a ball valve;
i) top falling object protective net.
5.6.5 open diving bell should meet the following requirements.
a) comply with the requirements of 5.6.4;
b) an upper set breathing compressed air filling space;
c) high-pressure pipeline bell outside the body to meet the requirements of 5.3.6, 5.2.1 meet the requirements of the hose;
d) The Diving Bell and other promising gas, electricity and communication purposes umbilical cord shall be loaded beyond its safe load tension;
Within e) bell promising diver's air supply and ventilation air supply valve;
f) an illumination device;
g) identification penetrations, valves, piping and instrumentation functions.
5.7 dipping system
5.7.1 should refer to CCS "diving systems and submersibles into the Classification and Construction," the relevant requirements of the design, construction, installation and testing.
5.7.2 dipping diving cage or open diving bell hanging into the water discharge system shall include at least the mast or boom, crane or winches, slings and bottom
Seat, and a power source.
5.7.3 should be automatic backup brake and mechanical brake type brakes; when equipped with a clutch, should prevent clutch disengagement of automatic protection
Means.
5.7.4 Lifting cage diving or diving bell anti-twist rope should be able to carry eight times the maximum working load lifting, sampling once a year break
Off test.
5.7.5 sling diving cage lifting points should be used with a nut and cotter pin nut.
When used as part of 5.7.6 Diving bell umbilical recovery system, due to run umbilical termination device; transmission angle...
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