Miller ARC PAK 350 소유자 매뉴얼 - 페이지 8
{카테고리_이름} Miller ARC PAK 350에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Miller ARC PAK 350 40 페이지.
Miller ARC PAK 350에 대해서도 마찬가지입니다: 소유자 매뉴얼 (47 페이지)
페이지 인쇄
1-3.
ARC WELDING
Comply
with
precautions
in
1-1, 1-2,
and this section.
Arc
Welding, properly
done,
is
a
safe process, but
a
careless
operator
invites trouble. The
equipment
carries
high
currents at
significant voltages.
The
arc
is very
bright
and hot.
Sparks fly,
fumes
rise,
ultraviolet and in
frared
energy
radiates,
weldments
are
hot,
and
com
pressed
gases may be used. The wise
operator
avoids
unnecessary risks and
protects
himself and others from
accidents. Precautions
are
described here andin
stan
dards referenced in index.
A.
Burn
Protection
Comply
with
precautions
in 1-2.
The
welding
arc
is intense and
visibly bright.
its radiation
can
damage
eyes,
penetrate
lightweight clothing,
reflect
from
light-colored
surfaces,
and burn the skin and eyes.
Skin burns resemble
acute
sunburn,
those from gas-
shielded
arcs are more severe
and
painful.
DONT
GET
BURNED;
COMPLY WITH PRECAUTIONS.
1.
Protective
Clothing
Wear
long-sleeve clothing (particularly
for
gas-shielded
arc)
in
addition
to
gloves,
hat,
and shoes
(1 -2A).
As
nec
essary,
use
additional
protective clothing
such
as
leather
jacket
or
sleeves,
flame-proof
apron, and fire-re
sistant
leggings.
Avoid
outer
garments
of untreated cot
ton.
Bare skin
protection.
Wear
dark,
substantial
clothing.
Button collar
to
protect
chest.and neck
and button
pock
ets to
prevent
entry
of
sparks.
2.
Eye
and
Head
Protection
Protect eyes from exposure
to
arc.
NEVER look
at
an
electric
arc
without
protection.
Welding
helmet
or
shield
containing
a
filter
plate
shade
no.
12
or
denser
must
be used when
welding.
Place
over
face before
striking
arc.
Protect filter
plate
with
a
clear
cover
plate.
Cracked
or
broken helmet
or
shield should NOT be
worn;
radiation
can
pass
through
to
cause
bums.
Cracked, broken,
or
loose filter
plates
must
be
replaced
IMMEDIATELY.
Replace
clear
cover
plate
when
broken,
pitted1
or
spattered.
Flash
goggles
with side
shields MUST be
worn
under
the helmet
to
give
some
protection
to
the eyes should the
helmet
not
be
lowered
over
the face before
an arc
is
struck.
Looking
at
an arc
momentarily
with
unprotected
eyes
(particularly
a
high intensity
gas-shielded arc)
can
cause a
retinal burn that may leave
a
permanent
dark
area
in the field of vision.
3.
Protection of
Nearby
Personnel
Enclosed
welding
area.
For
production
welding,
a
sepa
rate
room or
enclosed
bay
is best. In open
areas,
sur
round the
operation
with
low-reflective,
non-combusti
ble
screens or
panels.
Allow for free air
circulation,
par
ticularly
at
floor level.
Viewing
the weld. Provide face shields for all persons
who
will be
looking directly
at
the weld.
Others
working
in
area.
See
that all
persons
are
wearing
flash
goggles.
-
Before
starting
to
weld,
make
sure
that
screen
flaps
or
bay
doors
are
closed.
B.
ToxIc Fume PreventIon
Comply With precautions
in 1-2B.
Generator
engine
exhaust
must
be vented
to
the outside
air.
Carbon
monoxide
can
kill.
C.
Fire and
Explosion
Prevention
Comply
with
precautions
in
1
-2C.
Equipments
rated
capacity.
Do
not
overload
arcwelding
equipment.
It
may overheat
cables and
cause a
fire.
Loose cable connections may overheat
or
flash and
cause a
fire.
-
Never strike
an arc on a
cylinder
or
other pressure
ves
sel. It
creates
a
brittle
area
that
can cause a
violent rup
ture
or
lead
to such
a
rupture
under
rough handling.
D.
Compressed
Gas
Equipment
Comply
with
precautions
in
1
-2D.
E.
Shock Prevention
Exposed
hot conductors
or
other bare metal in the weld
ing
circuit,
or
in
ungrounded,
electrically-HOT equip
ment
can
fatally
shock
a
person whose
body
becomes
a
conductor. DO NOT
STAND, SIT, LIE,
LEAN
ON,
OR
TOUCH
a
wet
surface when
welding,
without suitable
protection.
To
protect
against
shock:
Wear
dry insulating gloves
and
body protection. Keep
body
and
clothing dry.
Never work
in
damp
area
without
adequate
insulation
against
electrical shock.
Stay
on a
dry
duckboard,
or
rubber
mat
when
dampness
or
sweat
can
not
be avoided.
Sweat,
sea
water,
or
moisture be
tween
body
and
an
electrically
HOT
part
or
grounded
metal reduces the electrical
resistance,
and could
en
able
dangerous
and
possibly
lethal
currents to flow
through
the
body.
A
voltage
will exist
between the electrode
and
any
con
ducting object
in
the work circuit.
Examples
of conduct
ing objects
include,
but
are
not
limited
to,
buildings,
elec
trical
tools,
work
benches,
welding
power
source
cases,
workpieces,
etc.
Never
touch the
electrode and any
metal
object
unless the
welding
power
source
is off.
1.
Grounding
the
Equipment
Arc
welding equipment
must
be
grounded
according
to
the National Electrical
Code,
and the work must be
grounded
according
to
ANSI Z49.1
usafety
In
Welding
And
Cutting.
When
installing,
connect
the frames of each unit such
as
welding
power
source,
control, worktable,
and
water
cir
culatorto
the
building ground.
Conductors
must
be ade
quate
to
carry
ground
currents
safely. Equipment
made
OM-126 853
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