This document provides safety precautions for welding and cutting. It discusses hazards such as electric shock, electromagnetic radiation, fires and explosions, and harmful fumes and gases. Key precautions include wearing protective equipment like gloves, goggles and boots; ensuring adequate ventilation; checking equipment is grounded and in good condition; and having fire extinguishers available in case of emergency. The document also classifies different types of fires and their appropriate extinguishing methods.
Safe practices while Welding, Gas cutting and machining activitiesMohammad Kashif
This presentation contains safety practices to be followed by technicians while working on a job. The slides do not contain engineering details of the equipment or ISO , NFCA standards
Safe practices while Welding, Gas cutting and machining activitiesMohammad Kashif
This presentation contains safety practices to be followed by technicians while working on a job. The slides do not contain engineering details of the equipment or ISO , NFCA standards
Practical Electrical Substation Safety for Engineers and TechniciansLiving Online
Electrical substation safety is an important issue in utility networks as well as large industrial installations and requires adequate attention in the stages of system planning, design, installation, operation and maintenance. A number of serious accidents including fatalities occur every year in industrial establishments due to accidents involving electricity, resulting in huge financial losses and wasted man-hours. Electrical safety is a well-legislated subject and the various Acts and Regulations lay a lot of stress on the responsibility of both employers and employees in ensuring safe working conditions.
In this workshop, we will take a look at the theoretical aspects of safety as well as the practical and statutory issues. Safety is not simply a matter of taking precautions in the workplace. It has to start at the stage of equipment design. Safety should be built into the design of electrical equipment and it is the responsibility of every manufacturer of electrical equipment to remove every possible hazard that can arise from its normal use. Correct selection and application of electrical machinery is also important for ensuring safety. A thorough inspection during initial erection and commissioning as well as on a periodic basis thereafter is also very essential to ensure safety. Batteries used in substations need particular attention since they contain toxic materials such as lead, corrosive chemicals such as acid or alkali.
Electrical safety is not just a technical issue. Accidents can only be prevented if appropriate safety procedures are evolved and enforced. This includes appropriate knowledge of equipment and systems imparted through systematic training to each and every person who operates or maintains the equipment. We will cover all these aspects in detail.
MORE INFORMATION: http://www.idc-online.com/content/practical-electrical-substation-safety-engineers-and-technicians-28
Complete Guide to Electrical Safety in the Workplacehudsonelectrical
The National Safety Council indicates that electrical hazards cause nearly one workplace fatality every day. Therefore electrical safety is especially important in the workplace. In this presentation here is a complete guide to workplace electrical safety. Visit: hudsonelectricalnb.com.au
Practical Electrical Substation Safety for Engineers and TechniciansLiving Online
Electrical substation safety is an important issue in utility networks as well as large industrial installations and requires adequate attention in the stages of system planning, design, installation, operation and maintenance. A number of serious accidents including fatalities occur every year in industrial establishments due to accidents involving electricity, resulting in huge financial losses and wasted man-hours. Electrical safety is a well-legislated subject and the various Acts and Regulations lay a lot of stress on the responsibility of both employers and employees in ensuring safe working conditions.
In this workshop, we will take a look at the theoretical aspects of safety as well as the practical and statutory issues. Safety is not simply a matter of taking precautions in the workplace. It has to start at the stage of equipment design. Safety should be built into the design of electrical equipment and it is the responsibility of every manufacturer of electrical equipment to remove every possible hazard that can arise from its normal use. Correct selection and application of electrical machinery is also important for ensuring safety. A thorough inspection during initial erection and commissioning as well as on a periodic basis thereafter is also very essential to ensure safety. Batteries used in substations need particular attention since they contain toxic materials such as lead, corrosive chemicals such as acid or alkali.
Electrical safety is not just a technical issue. Accidents can only be prevented if appropriate safety procedures are evolved and enforced. This includes appropriate knowledge of equipment and systems imparted through systematic training to each and every person who operates or maintains the equipment. We will cover all these aspects in detail.
MORE INFORMATION: http://www.idc-online.com/content/practical-electrical-substation-safety-engineers-and-technicians-28
Complete Guide to Electrical Safety in the Workplacehudsonelectrical
The National Safety Council indicates that electrical hazards cause nearly one workplace fatality every day. Therefore electrical safety is especially important in the workplace. In this presentation here is a complete guide to workplace electrical safety. Visit: hudsonelectricalnb.com.au
Repetitive stress injuries, prevention & managementAbility India
Dr. Debadutta Mishra is an Occupational Therapist with over 10 years of experience in the field of social development, disability management and corporate social responsibility with reputed NGOs and corporate organizations. He have gained substantial experience in strategy development, policy development, stakeholder management, project management, program implementation, reporting, organizational management, social marketing, development communication and process documentation. He is having substantial managerial experience in handling programs, institutions, and team.
Awareness Campaign on Welding and Electrical Safety.pptalutarep1
There have been so many incident in the oil and gas industry.
This presentation elucidate about the importance of electrical safety in the oil and gas industry to mitigate against the reoccurring electrical incident in the oil and gas industry.
Case M4K Forklift Truck Service Repair Manualjksmemm ekmdm
This is the Highly Detailed factory service repair manual for theCASE M4K FORKLIFT TRUCK , this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.CASE M4K FORKLIFT TRUCK Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
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Chapter 1 Introductory Information, Equipment Description and Data, and Theory of Operation
Chapter 2 Organizational Troubleshooting Procedures
Chapter 3 Direct Support Troubleshooting Procedures
Chapter 4 Organizational Maintenance Instructions
Chapter 5 Direct Support Maintenance Instructions
Chapter 6 General Support Maintenance Instructions
Chapter 7 Supporting Information
Parts Manual Covers:
Engine
Fuel System
Exhaust System
Cooling System
Electrical System
Transmission
Propeller and Propeller Shafts
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8
Work Hazards: The Potential Safety Risks of Weldingclassichirenetau
All welders must pay close attention to their safety whenever there is a project in progress. Although arc welding is generally safe, it can become a risky occupation if the welder does not observe proper safety precautions. Welding operators have to address a range of safety hazards associated with the craft. These hazards include:
Introduction to Arcraft Plasma Equipments (I) Pvt Ltd
A leader in the design, development and manufacture of machines and automation for welding, cutting, hard facing, cladding, hardbanding using PTA / Plasma / Tig / MIG - MAG / FCAW / Strip cladding and more.
Proven capability to design and custom build machinery as per customers requirement.
Consumables used wire, powder metal and alloys, strips.
Autogenous welding on this sheets, delicate and small processes
our website www.arcraftplasma.com
our blog : https://arcraftplasma.blogspot.com/2021/05/id-pta-welding-torch-minimum-dia-50-mm.html
Arcraft plasma equipments (i) pvt. ltd. ,
We assist leading companies worldwide achieve their Welding, Cutting and Surface Engineering objectives.
ARCRAFT has emerged as a ONE STOP SHOP for all requirements in
Plasma Cutting Machines, Hard Bander Machines, Welding Automation Equipments, Metal Cutting & Welding Machines, Welding Automation , Hardfacing & Cladding Systems, Accessories & Consumables.
ARCRAFT designs and manufactures a diverse range of plasma cutting machines, Welding automation Equipments, Metal Cutting and Hardfacing equipment with integrated automation. Our sales and marketing team is in constant touch with our customers to know their requirements. Our creative and technical team is passionate about providing solutions to our customer requirements.
Quality, Reliability, Speed, Accuracy and Productivity for customers is what we strive to incorporate in all our machines.
ARCRAFT with its two decades of research and experience in Welding and Cutting Machine has emerged as the nation’s leading manufacturer and supplier of Plasma Welding, Plasma Cutting Machines, Welding Automation Equipments and Hard Banding Unit.
Mig welding process is semi automatic when used for manual welding . It can be used in welding automation systems for high quality welds and high productivity.
Welding automation requires positioners which are used to hold the job rotate and position for welding . It ensures quality welding and high productivity.
Plasma welding is a advanced welding process . It can be used in automatic welding systems for high quality welding requirements . It has benefits of .welding at high speed, greater penetration, narrow HAZ (heat affected zone) and minimum heat input to the job.
Micro Plasma welding is used for precision welding of small components . It is a advanced welding process and can be easily automated . It can maintain a arc at a current as low as 0.1 amp and can weld sheets as this as 100 microns .
This presentation is about the Jigs and fixtures used for holding the components which have to be welded . It is normally used in automated welding systems . It is beneficial for high productivity and safety .
PTA welding and overlay for Seat rings, Wedges, Seals, Globe of Flow control valves. • Disc, Nozzle, Inlet of safety valves.
• Valve Base & Seats of Automobiles, Marine Engines. • Edges of industrial Cutting knives, Extrusion
screws. • Pressure rollers of Pulp & Paper industries. • Components of Agricultural, Chemical,
Nuclear plants. • Screws of mixing plants like Rubber, Chemical etc.
Arcraft is the name to turn to for innovative technology. With Plasma Transferred Arc Welding we provide high productivity, high quality of powder deposits and significantly lower cost for hardfacing even in the most challenging area such as valves, valves seat of internal combustion engine, accessories for ship, petroleum and power generation. PTA is also used for reclamation of worn jobs extending the life of components and giving a huge savings on cost.
manipulator for mounting welding head , wire reel , SAW flux canister . Usefull for automation of circumferential and long seam welding . Available with swivel base .
Welding Positioners
Positioners provide steel fabrication shops a versatile and productive means for placing bulky fabrication jobs in the ‘downhand’ position . This reduces handling time and frequent use of crane.
The positioners tables rotate at accurate and constant variable speeds and tilt through 135° with a high C.G. load rating and can be conveniently used for circumferential welding , saw and strip cladding , downhand position welding and assembling of intricate assemblies and many more applications.
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My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
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AIRCRAFT GENERAL
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Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
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This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
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Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
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Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
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Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
2. SAFETYPRECAUTIONFORWELDINGANDCUTTING
1
SAFETY PRECAUTION
FOR WELDING AND
CUTTING
INTRODUCTION
To prevent injury to personnel, extreme caution should be exercised
when using any types of welding equipment. Injury can result from
fire, explosions, electric shock, or harmful agents. Both the general
and specific safety precautions listed below must be strictly
observed by workers who weld or cut metals.
The electric arc is a very powerful source of light, including visible,
ultraviolet, and infrared. Protective clothing and equipment must be
worn during all welding operations. During all oxyacetylene
welding and cutting process, operators must use safety goggles to
protect the eyes from heat, glare, and flying fragments of hot metals.
During all electric welding processes, operators must use safety
goggles and a hand shield or helmet equipped with a suitable filter
3. SAFETYPRECAUTIONFORWELDINGANDCUTTING
2
glass to protect against the intense ultraviolet and infrared rays.
When others are in the vicinity of the electric welding processes, the
area must be screened so the arc cannot be seen either directly or by
reflection from glass or metal.
Where there is exposure to sharp or heavy falling objects or a hazard
of bumping in confined spaces, hard hats or head protectors must be
used
For welding and cladding overhead or in confined spaces, steel-toed
boots and ear protection must also be used.
When welding in any area, the operation should be adequately
screened to protect nearby workers or passers-by from the glare of
welding. The screens should be arranged so that no serious
restriction of ventilation exists. The screens should be mounted so
that they are about 2.0ft above the floor unless the work is performed
at such a low level that the screen must be extended closer to the
floor to protect adjacent workers. The height of the screen is
normally 6.0ft (1.8 m) but may be higher depending upon the
situation. Screen and surrounding areas must be painted with special
paints which absorb ultraviolet radiation yet do not create high
contrast between the bright and dark areas. Light pastel colors of a
zinc or titanium dioxide base paint are recommended. Black paint
should not be used
4. SAFETYPRECAUTIONFORWELDINGANDCUTTING
3
ELECTRIC SHOCK
Arc welding equipment’s operates at a voltage which is safe under normal
working conditions. But the shock hazard should not be ignored. It
increases in warm & damp conditions, because an electric arc welder has
to work with electric current which may pass through his body. The human
body resistance to current passage is not constant. The highest resistance
is offered by the skin. Wet skin conducts electric current better than dry
skin under normal condition.
Safety precautions:
Check that equipment is correctly
earthed when installed & when in use.
Make sure welding cables and
machines are capable of handling
maximum voltage & current as rated for the equipment & for the
desired applications.
Check for damage to insulation on cables,
holders, guns and connectors. Please do not
operate the equipment without properly
insulating them.
Ensure ARC welding machines are designed
as per applicable standards.
Please operate equipment’s strictly as per printed instructions and
rules specified by respective original equipment manufacturers.
5. SAFETYPRECAUTIONFORWELDINGANDCUTTING
4
Make sure all earthing connections are mechanically strong.
Ensure all welding equipment’s are inspected once a week.
Do not carry holder and earthing together when welding machine is
ON.
Always wear rubber soled safety shoes.
ELECTROMAGNETIC RADIATION
The welding arc provides intense visible and invisible light (or radiation)
and heat. Eyes must be protected from ultraviolet and infrared radiation to
avoid “Arc Eyes” and “Arc Burns”. Light intensity of Welding arc is
10,000 times that of the safe unit for human body. A welding arc should
not be looked at with unprotected eyes. Failure to observe this rule may
result in various degrees of eye burn or Flashed eyes (Arc eyes). The
affected person has pronounced irritations in the eyes. The symptoms
remain for 1 to 2 days. Radiation effects are up to a distance of 15 meters.
Safety precautions:
Do not look at welding arc with naked eyes
Use Heat –Resisting Quality of Welding screen
Use helmet or face shield fitted with the correct shade of filter glass
Do not use cracked or defective helmets or shield
If possible, coat individual welding booths with a mat & light
absorbent type of paint with a very low reflecting quality.
6. SAFETYPRECAUTIONFORWELDINGANDCUTTING
5
Use safety clothing (safety shoes, leather hand gloves, leather apron,
leather leggings and leather cap) when welding.
As a thumb rule, start with a shade that is too dark to see the weld
zone. Then go to the lighter shade gives sufficient view of the weld
zone without going below the minimum.
These values apply where the actual arc is to be seen. Lighter filter
shades may be used when arc is hidden by work piece & only
reflected light is seen.
7. SAFETYPRECAUTIONFORWELDINGANDCUTTING
6
Operation Arc Current
(A)
Minimum
Protective shade
No.
Suggested Shade
No.
Shield Metal Arc
Welding
Less than 60
60-160
160-250
250-550
7
8
10
11
10
10
12
14
Gas Metal Arc
Welding & Flux
Cored Arc
Welding
Less than 60
60-160
160-250
250-550
7
10
10
10
11
12
14
14
Gas Tungsten
Arc Welding
Less than 50
50-150
150-500
8
8
10
10
12
14
Air Carbon Less than 50 10 12
Air Cutting 500-1000 11 14
Plasma Arc
Welding
Less than 20
20-100
100-400
400-800
6
8
10
11
6-8
10
12
14
Plasma Arc
Welding
Less than 20
20-100
100-400
400-800
6
8
10
11
6-8
10
12
14
Plasma Arc
Cutting
Less than 300
300-400
400-800
8
9
10
9
12
14
8. SAFETYPRECAUTIONFORWELDINGANDCUTTING
7
FIRE & EXPLOSION
FIRE:
When any material starts burning, we call it “FIRE”. Material
(FUEL), start burning on application of Heat in presence of AIR and
OXYGEN.
Any fire requires three supports – fuel, oxygen and ignition. When
these three entities meet proportionately with each other, then a fire
breaks out.
When an outbreak of fire is discovered, immediate corrective action
is essential to provide life and damage to property.
CLASSIFICATION OF FIRE:
When material burns, it behaves in different manners, depending
upon its physical properties. Extinguishing methods depend on these
physical properties. Portable Extinguishers are in according with the
extinguishing method. The various classification of fires are.
“Class A” Fire:
It involves ordinary combustibles (wood, cloth, paper, rubber and
some plastics).
“Class B” Fire:
Such fire involve flammable/combustible liquids (kerosene, petrol,
spirit, thinner etc.).
9. SAFETYPRECAUTIONFORWELDINGANDCUTTING
8
“Class C” Fire:
Involves substances in gaseous from like LPG, Acetylene, Halogen,
Hydrogen etc.
“Class D” Fire:
Those involving combustible metals such as magnesium, sodium,
potassium etc.
EXPLOSION:
It is very rapid process of combustion, accompanied by rapid
liberation of heat and formation of a very large volume of gaseous
products fire can be controlled by reducing Fuel or Heat or Air
Before extinguishing any fire, it is essential to know the
classification of fire.
SAFETY PRECAUTIONS:
While repairing tanks, vessels, drums or pipes by welding or gas
cutting, remove all traces of earlier stored material, to avoid
possibility of explosion.
Remove all flammable materials from working areas.
Avoid excessive release of fuel gas into the atmosphere.
Ensure that appropriate firefighting equipment is available at hand
and that all concerned know how to use it.
Have a bucket of water at the work station for cooling overheated
blow pipes.
10. SAFETYPRECAUTIONFORWELDINGANDCUTTING
9
Where a “permitted to work” system is in operation, ensure that all
instruction are fully complied with.
Do not use adaptors for hose connections.
Check emergency escape route.
Gas welding, brazing and cutting are familiar processes today in
every industry and as such, the equipment is designed and
manufactured, to be as safe as possible. However, there are a number
of aspects to safety and design and manufacture is only the first step.
SAFETY DEVICES FOR MINIMIZING RISK:
Flash back arrestor
Non return value
Cut off value
Relief value
PRECAUTIONS IN CASE OF FIRE:
Do’s
Raise alarm ‘FIRE’ at peak of your voice, if you notice a fire within
your vicinity
Approach the scene in quickest possible time
Try to attract other’s attention on your way to the scene of fire
11. SAFETYPRECAUTIONFORWELDINGANDCUTTING
10
Make sure no life is trapped
Tell others the type of fire and which extinguisher to use
Put off the supply in case of electrical fires
Dial 101 & give exact location as needed
Open all doors and windows after the fire is completely
extinguished, to avoid inhalation of fumes
Don’ts
Don’t run in panic.
Don’t take undue risk
Don’t tamper with any machinery during firefighting. Leave it for
authorized handling
Don’t argue on the scene of fire
Don’t throw sand on machinery parts. Use CO2 or dry powder
instead
Don’t flood the affected area with water
Don’t crowd the scene of fire
Don’t close the valve of a inflammable gas cylinder on fire
12. SAFETYPRECAUTIONFORWELDINGANDCUTTING
11
FUMES & GASES
Proper ventilation is must to maintain good health. It is true that when a
welder gets clean air to breathe, he can see better, work better, work longer,
quality of his work improves & productivity of people working nearby
increase in an improved environment. Most common toxic fumes are from
materials such as Zinc Oxide, Carbon Monoxide, Mercury, and Lead &
Cadmium.
SAFETY PRECAUTIONS:
Carry out all welding operations in safe, clean and dry location
Under normal workshop conditions, use a local fume extractor
wherever possible and maintain its position close to the weld as
work progresses
Check for possible toxic hazards from parent metal (Specially if
surface is painted, plated or chemically treated), or from welding
consumables
Check for adequate ventilation and / or breathing apparatus when
welding in an enclose space
Use a face respirator when toxic fumes are present
13. SAFETYPRECAUTIONFORWELDINGANDCUTTING
12
CYLINDER HANDELLING
Cylinders, if mishandled, can rupture and violently release gas. Sudden
rupture of cylinder, valve, or relief device can injure or kill. Use the proper
gas for the process and use the proper pressure reducing regulator designed
to operate from the compressed gas cylinder. Do not use adaptors.
Maintain hoses and fittings in good condition. Follow manufacture’s
operating instructions for mounting regulator to a compressed gas cylinder.
Locate cylinders away from heat, sparks, and flames. Never strike an arc
on a cylinder.
Do’s
Always secure cylinders in an upright position
by chain or strap to suitable hand trucks, under
carriages, benches, wall, post, or racks
When not in use, keep cylinder valves closed.
Have valve protection cap in place if regulator
is not connected. Secure and move cylinders by
using suitable hand trucks
14. SAFETYPRECAUTIONFORWELDINGANDCUTTING
13
Don’ts
Never secure cylinders to work tables or fixtures where they may
become part of an electrical circuit
Avoid rough handling of cylinder
Do not keep cylinders close to heat, sparks and flames. Never an arc
on a cylinder
EQUIPMENT MAINTENANCE
Faulty or improperly maintained equipment can cause injury or
death. Therefore the Safety Precautions are:
Always have qualified personnel perform the installation,
troubleshooting, and maintenance work. Do not perform any
electrical work unless you are qualified to perform such work
Before performing any maintenance work inside a power source,
disconnect the power source from the incoming electrical power
Maintain cables, grounding wire, connections, power cord, and
power supply in safe working order. Do not operate any equipment
in faulty condition.
15. SAFETYPRECAUTIONFORWELDINGANDCUTTING
14
Do not abuse any equipment or accessories. Keep equipment away
from heat sources such as furnaces, wet conditions such as water
puddles, oil or grease, corrosive atmospheres and inclement
weather.
HEAT
Heat & Spatter are expelled during cutting and welding. The work
pieces will remain hot for some time after welding
SAFETY PRECAUTIONS:
Wear correct protective clothing in good condition, free from grease
and oil
Treat all metal connected with welding and cutting as HOT
Mark work HOT when so (remove notice when cool)
“Wishing Safe & Healthy Welding & Cutting!”