Guan
Water
Electricity
Have
Limited
Company
200
4-
Developed
Built
2004-
Implemented
Supported
1
Fujian Shaxian Chengguan Hydropower Co., Ltd. corporate standard
Electric welding, gas welding safety regulations
Q/2CD-1 02 13-
1
Main content and scope of application
This standard applies to the Company's overhaul and there are engaged in electric welding work in the department
2
Welding requirements
2.1
Wherever the Company's employees in the welding work should comply with this standard and
"Electricity Safety Regulations"
Water
Force machinery, electrical overhaul of the relevant provisions of the part.
2.2
Not professionally trained personnel are not allowed to carry out welding work, where the following parts of the welding welder, must
Must be qualified by the technical assessment, licensed to work.
2.2.1
General electrical, mechanical equipment, parts and components.
2.2.2
Structure, lifting equipment structure.
2.2.3
Operating pressure greater than
0.1Mpa
and temperature higher than
120
℃ oil, gas and water pipelines and containers.
2.2.4
Storage of flammable, explosive
(
liquid, gas
)
containers and pipelines.
2.2.5
On pressurized and pipeline containers, as well as turbines, generators, inner cylinder bulb head, welding non-pressurized parts.
3
General Welding Safety Precautions
City
Gate
Water
Electricity
Have
Limit
Pubic
Secretary of State
200
4-
Development
Bulletin
2004-
Actual
Specialization
2
3.1
Welding work should be strictly carried out in the "Electric Welding, Gas Welding Safety Regulations"
, so that the material, process is not clear not welded,
bevel cleaning is not in line with the requirements of not welded, not welded without a license or test is not qualified.
3.2
When welding near flammable and explosive items in the oil system, the minimum horizontal distance shall not be less than
5
meters, and it is prohibited to weld on containers with
flammable items or on structures and other objects whose paint has not dried, and to take safety
reliable measures according to the site conditions.
3.3
Electrical welding work using the grounding wire should be intact, and grounded well, is strictly prohibited to use the oil system pipeline, the cable shell for the grounding
grounding circuit, the grounding wire must be connected to the weldment, start and stop the operation in accordance with the prescribed steps. Welding machine and wire should be frequently checked
check, found damaged in time to repair, welding, pay attention to the surrounding area and the lower part of the flammable items, welding or transfer of the workplace
point of handling the welding machine, you must cut off the power supply of the welding machine, the welding staff must be inspected before leaving the scene, the scene should be no fire to stay
under.
3.4
Oxygen, acetylene gas rubber hose, do not connect, not when the water pipe, oil hose use, avoid contact with live wires, hot
body or by vehicles, artifacts, rolled pressure, acetylene bottles placed in the distance from the oxygen cylinder
8
m above the welder leaves the scene,
must be the acetylene bottle, the oxygen bottle Valve off, and carefully check to prevent leaving a fire hazard.
3.5
Strictly prohibit the use of defective welding tools and equipment.
3.6
No welding is allowed to be carried out on equipment with pressure or charged equipment,
In special circumstances,
need to carry out welding on charged equipment
when welding is required, it must be approved by the company's leadership, audited by the safety supervision department and safety measures can be taken before the work is done,
Welding of load-bearing equipment. Must be authorized by the relevant technical departments.
3.7
When welding in places that may cause fire, the necessary fire-fighting equipment must be available.
3.8
Welding work on pressurized oil cylinders, tanks, and other metal containers shall have the following measures to prevent electric shock:
City
Gate
Water
Electricity
There are
limit
p>Public
Division
200
p>4-
Distribution
Bulletin
2004-
Actual
Specialization
3
Q/2CD-1 02 13-
3.8.1
When welding, the welder shall avoid contact with metal, stand on insulating mats or wear rubber shoes, and wear a dry work< /p>
Clothing.
3.8.2
When welding inside the container,
there should be a guardian outside who can see and hear the welder's work,
and there should be a switch which is easy to cut
at any time in order to cut off the power supply according to the signal of the welder.
3.8.3
The use of running lights in the container,
the voltage is not allowed to exceed
12V
The shell of the running light transformer,
should be fitted with a reliable ground wire,
don't allow the use of autotransformers.
3.8.4
The transformer for running lights and welding transformers shall not be carried into metal containers.
3.8.5
Inside the sealed container, simultaneous welding is not allowed.
3.9
All kinds of welding equipments must be designated for special person to keep, and regular inspection and maintenance.