Safety in Welding part1

Safety in Welding part1


Hello this is a discussion on chapter 2
safety and welding. You should have your textbook open follow along on page 16. LP1 welding safety awareness we’re goingo discuss the following criteria
identify the function of a safety data face protection required for welding
identify welding helmets shading requirements for welding identify the
foot wear gloves and the jackets and the sleeves and the aprons required for
welding identify other types of clothing required for welding
now who’s responsible for a safe workplace we’re all responsible as the
short answer employers are responsible to establish safety guidelines for a job
and establish comprehensive workplace safety programs employees are
responsible to follow those safety rules and many other rules pertaining to
welding come out of Z 49.1 safety and welding and cutting and allied processes
by the American Welding Society OSHA Occupational Safety and Health
Administration and NIOSH National Institute for Occupational Safety and
Health there are organizations that supply more detailed guidelines for
manufacturing to use to build their comprehensive safety programs we’re
going to look at one of the tools used to identify hazardous materials or any
materials in the manufacturing environment or as they’re sdss they are
formally known as MSDS is now in SDS is simply a listing out all the particular
properties of any substance used in manufacturing it could be any level of
safety hazard from extremely hazardous down to
rather benign substance but within these days safety data sheets you’ll be able
to look up any properties pertaining to the material you’re using in
manufacturing and all employers are required to have these at our disposal
how can employers meet hazard requirements well as we said before a
comprehensive safety workplace safety programs any manufacturers nowadays will
have a safety program in place one of the tools we use is the materials
identification system to identify hazardous or potentially hazardous
materials according to their flammability the reactivity health
issues and it chosen required personal protective equipment needed for that
handling that substance safely it’s a color coding system that uses red for
flammability yellow for reactivity blue for health and the white field is for
per the type of personal protective equipment needed for handling that
substance as you can see here on the white icon we have an indexing system of
letters that correspond over to the type of personal protective equipment needed
so in this case you’re looking at a C and that would be safety glasses gloves
and an apron most of the time you’re going to see these labels on anything
from a 55-gallon drum down to a small spray bottle so you’re going to have a
corresponding letter here a letter and a number in the blue and red and yellow
fields corresponding to what level of hazard exists so you
indexing tool you can use the for being a severe hazard zero a minimal hazard
and the personal protective into index is a being two safety glasses and then
as the letters progress on the the material becomes more hazardous and
typically you’re going to need more PPE now this is the national fire protection
association label we’re going to take a look at this because it’s so similar to
the HMIS system they’re practically identical and except in the white field
you’re going to see a corresponding specific hazard as acid alkaline
corrosive deoxidize an oxidizer or if it’s radioactive and then many
substances have an adverse reaction to when they’re mixed with water now what
types of clothing are recommended for welding basically flame resistant wool
or cotton material is recommended that comes right out of Z 49.1 and the
clothing should be dark it’s preferred over light colors because of the
radiation emitted by a welding arc tends to reflect with light colors leathers
are work much better than say cotton cotton or a flame resistant wool shop
coats aprons are frequently made out of leathers and so they tend to protect us
much much better also for dealing with high amperage applications leather
materials or even thicker cotton materials work far better and what we’re
really dealing with here is ultraviolet radiation our chloride irradiation can
burn us easily in our skin or our eyes it’s it’s very similar to a severe
sunburn and depending upon the amount of time exposed to this radiation and
the intensity of the radiation itself and it can be strong enough where it
will degrade your personal protective equipment over time so our PPE does wear
out a lot of it is because of the ultraviolet radiation what we’re looking
at here is some examples of different types of PPE that is perfectly
acceptable for most welding environments on the left you get the green shop coat
it’s inexpensive and it works fairly well the leathers are much better for
higher applications higher heat applications more intense amperage also
it’s noteworthy here on the left hand side or on the right hand side on the
welders left hand you can see a insulating each shield and that’s for
high heat applications like flux core now what types of protection are
required on hands and feet it’s preferred in C 49.1 spells out a
gauntlet Sizewell style welding glove it keeps the risk covered inches over
time you’re going to really appreciate that less burns on your wrists and your
forearms and lighter weight gloves give a little better dexterity wear heavier
weight gloves stand up to higher heat applications much better on your feet
most all manufacturers require a height I top steel boot for for welding better
boots were are going to save our feet from a lot of pain over time we stand on
a lot of concrete floors and that can cause you a lot of trouble over time
types of footwear are many many different styles to choose from but it’s
it’s noteworthy to that employers in any given safety program they’ve adopted
will may require a particular type boot any types of clothing that should not be
worn well nylon polyester rayon clothing or
doesn’t work for welding at all it it tends to melt and it will not protect us
in the in the world working environment at all it will melt it’ll stick to your
skin also frayed clothing James that have frames on them I know that they’re
usually our favorites pair of jeans to wear but they will catch they will catch
fire with the sparks and spatter and so will burn up the side of your leg
eventually also do not wear flannel clothing flannel clothing at for
everybody’s familiar with it it’s get has a fuzzy texture to it and that
fuzziness will reignite easily and quickly what types of head protection
we’re going to have some discussion about different welding helmets coming
up in the next few slides but welding helmets are so so numerous and variety
nowadays you can you can find yourself just about anything
welding hats should be made of flame resistant material once again there’s so
many different types and varieties out there now you can choose just about
anything as long as it’s been treated and it is a flame resistant type
treatment always wear ear plugs I know that there’s so many different types to
choose from out there that you should have no problem in choosing a ear plug
that that works well for you once again we’re going to talk about
ultraviolet light and arc flash arc flash is a phenomenon where if we catch
too many arcs you can end up with this temporary discomfort called arc
flash, it feels like sand rolling around in your eyes.
Now it goes away by itself after a while it’s just very uncomfortable but as soon
as someday you experience it you’ll know you’ve caught a few too many arc rays
without the proper protection. What type of eye protection is required for
welding typically safety glasses with side shields or the wrap around type of
would be acceptable as well. Welding helmets we have a passive welding helmet
and a auto darkening helmet typically to choose from we’re going to look at
either one of those both of those in detail coming up in a few slides. We’re
also looking at a full face shield for grinding this is a requirement most
welding shops most manufacturers are going to require us to use a grinding
face shield. Also the face shield for oxy acetylene cutting or plasma cutting
requires a little as shading them then welding usually the shading is anywhere
about a five or six. So we’re going to talk about a welding helmets a little
bit right here. Passive welding helmets those are the
types that have glass or plastic shading plates. They have to be changed manually
to make a change in shading. They work very well you have to get used to flipping
your helmet as you’re initiating an arc. Now lens shading selection depending upon
the current range and the current range current we mean amperage and if you’re
using a higher amperage you need a greater amount of shading. So let’s say
we’re doing 150 amps at the most we can use a number 10 quite comfortably Auto darkening helmets are very popular
and very reasonable in price now so you don’t have to get a thousand dollar
helmet but you can get a pretty good one at a reasonable price nowadays. They’re
going to make learning welding easier and the shades are adjusted according to
the amperage yet the amount of amperage it’s the same and but they’re easier to
adjust by just turning a dial or if you have a digital model it’s a push button. Okay, that finishes up this discussion
chapter 2 safety and welding part one. The criteria we’re going to cover in
part 2 is electrical safety hazards associated with welding, how to inspect
your arc welding equipment for safety, how to handle gas cylinders when used in
welding safety and health issues used from gases and fumes, methods of
ventilation in the welding environment, and fire an explosion prevention in the
welding environment. End of chapter 2 part 1 and you can ask yourself this
question why do we have safety rules? Well, in some parts of the world there
are no safety rules and people do all kinds of things.

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