PC Audio Safety CE

1
CONSIDER THE SCENARIO
Donesha walked into the class television studio around 7am
this morning, and noticed that all of the studio lights were still
turned on. She went to turn them off, and tripped on a cord that
was in her pathway. The fall was made worse by the fact that
she knocked over a half-empty cup of coffee that was sitting on
the ground. She filed for worker’s compensation, and an
inspector from OSHA came out to review the cause of the fall.
Who is at fault for this accident? What went wrong? What
could you learn from this? Jot your thoughts on a sheet of
paper and be prepared to share them with the rest of the
class…

• Occupational Safety and Health Administration
• Assure as far as possible every working man
and woman in the nation safe and healthful
working conditions and to preserve our human
resources. www.osha.gov
Copyright © Texas Education Agency, 2012. All rights reserved.
Images and other multimedia content used with permission. 3

Conduct
• Definition: Correct behavior in the
appropriate place and time.
Images and other multimedia content used with permission.
4

Personal Attire
• Appropriate for your job or task.
•Wear shoes that enclose the foot.
• Avoid sandals and slip on shoes
when operating equipment that
moves or rolls.
9

Using Electricity
• Do not use equipment with damaged
cords.
• Never use electrical equipment on a wet
surface.
• Keep equipment dry.
• Do not touch electrical switches or
equipment
with wet hands.
10

Protecting Your Hearing
• If you must shout to be heard from three feet away,
the noise is too loud; hearing protection should be
used.
• Decibels:
Over 115 decibels -- unsafe.
•Hearing damage is permanent.
15

POSTURE
TECHNIQUE
PROPER
FURNITURE

Workstations
• Keyboard and work surfaces –
arms should form a 90-degree
angle.
• Top of the monitor – no higher
than eye level.
• Chairs – comfortable backrest,
feet should be flat on the floor.
• Chairs or stools should never
be leaned or tilted back.
17

Lifting and Carrying
• Size up the load
• Think before you lift
• Obtain help
• Balance the load
• Carry less, more times
(make several trips)
• Lift using your leg muscles – not your back
(don’t bend over)
19

Maintenance
• Clean your work area
before the end of the
period.
• Return equipment to
approved locations.
• Floors must be free of
objects that might cause
falls.
20

Fire Safety
• Type A fires – combustible materials, paper, cloth, wood
• Type B fires – flammable liquids, solvents, oil
• Type C fires – electrical equipment or electrical wires.
• Using the wrong type of extinguisher on the
wrong type of fire can be dangerous
• PASS method
Pull the pin,
Aim low,
Squeeze the handle,
Sweep from side to side.
23

Using a Fire Extinguisher
 Pull the Pin at the top of the extinguisher. The pin
releases a locking mechanism and will allow you to
discharge the extinguisher.
 Aim at the base of the fire, not the flames. This is
important - in order to put out the fire, you must
extinguish the fuel.
 Squeeze the lever slowly. This will release the
extinguishing agent in the extinguisher. If the handle
is released, the discharge will stop.
 Sweep from side to side. Using a sweeping motion,
move the fire extinguisher back and forth until the
fire is completely out. Remember: Aim at the base of
the fire, not at the flames!!!!

In Case of an Accident
• Immediately report accidents to the teacher.
• The school nurse should treat injuries.
25

Human Error
• The one element common to
most accidents.
• Not applying common sense
is the cause of most
accidents.
26

Soldering 101
A Really HOT Topic

Soldering
 The process of making an electrical connection
by melting low-temperature metal alloys around
component leads
 Soldering is just as much an “Art” as it is a
“Science”
 We will:
 Go over some soldering vocabulary
 Illustrate graphically soldering techniques
 Solder a few components on the TV Remote board
 Complete the board as homework

Soldering Iron Safety
 Never touch the element or tip of the soldering
iron. They are very hot (about 400°C) and will
burn.
 Hold wires to be heated with tweezers or
clamps.
 Keep the cleaning sponge wet during use.
 Always return the soldering iron to its stand
when not in use. Never put it down on your
workbench.
 Turn unit off or unplug it when not in use.

Working Safely with
Solder
 Work Safely with Solder, Flux and Cleaners
 Wear eye protection. Solder can “spit”.
 Use lead free solder.
 Keep cleaning solvents in dispensing bottle to
reduce inhalation hazards.
 Always wash your hands with soap and water
after soldering.
 Read and understand the MSDS for all materials
before beginning work.

Dangers of Lead
Exposure
 Lead on your skin can be ingested and lead
fumes can be given off during soldering. Other
metal fumes can also be hazardous. Lead can
have serious chronic health effects, such as:
 Reproductive problems
 digestive problems
 nerve disorders
 memory and concentration problems
 muscle and joint pain

Avoiding Toxic Fumes
 Work in a well-ventilated area. The smoke
formed is mostly from the flux which can be
irritating, a sensitizer and aggravates asthma.
 Avoid breathing it by keeping your head to the
side of, not above, your work.
 A benchtop fume extractor may be necessary to
remove harmful fumes caused by solder and flux
from the soldering workstation by filtering the air.

Fire Prevention
 Work on a fire-proof or nonflammable surface
that is not easily ignited.
 Wear nonflammable or 100% cotton clothing
that covers your arms and legs to help
prevent burns.
 Know where your fire extinguisher is and how
to use it.

First-Aid
• Immediately cool the affected area under cold
water for 15 minutes.
• Do not apply any creams or ointments. Cover
with a band-aid.
• Seek medical attention if the burn covers an area
bigger than 3 inches across.

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