Articles by Month: February 2016
With electricity, we are dealing with
something that cannot be seen but can be very destructive if the proper precautions are not taken. The
danger is always there so it is important to know the basics of protection in
order to eliminate the hazards. The rules listed here apply to electrical
installations used on a construction site–both temporary and permanent–but
can easily be applied to home use as well.
- Extension cords used with portable electrical
tools and appliances shall be of three-wire types. Grounds are never to be
removed from the extension cords.
- Temporary lights shall be equipped with
guards to prevent accidental contact with the bulb. Guards are not required
when the reflector is constructed in such a way that the bulb is deeply
- Temporary lights shall not be suspended by
their electric cords unless cords and lights are designed for this means of
- Splices shall have insulation equal to that
of the cable. NO TAPE!
- Electrical and extension cords or cables are
not to be laid on floors, in walkways, etc., unless it is impractical to do
otherwise. They should be suspended or secured in such a way as not to block or
hang in walkways, doorways or work areas.
- Panel boxes shall have a cover on them at all
times, except when being serviced and when a temporary cover is in place it
should be marked “HOT” to denote live current.
A GFCI MUST BE USED AT ALL TIMES.
- Before using make a safety check for loose
cable connections, bare wires, cracked outlets and missing or damaged face
- During use, be sure plug fits firmly and
check for any signs of heating caused by faulty connections.
- When finished, grab the plug to remove. Yanking
a cord from an outlet can:
- Break cord insulation and wires
- Pull loose wire connections
- Bend plug prongs
clips inside outlets
THE THIRD PRONG IS THE GROUND.
WITHOUT IT, ELECTRICITY ONLY HAS
ONE PLACE TO GO – THROUGH YOU!
Rich Reese is a
Regional Safety Manager for Donley’s, Inc.
Learn more about Donley’s safety program.
Over the next few weeks, we will be focusing on electrical
safety and what to look for when inspecting tools, cords, and other sources
that carry electrical current. We start our series by focusing on the basics: electrical
Voltage – electrical pressure
Resistance – restriction to
electrical flow (pipe friction)
Amperes – electrical flow rate
Watts – amount of electricity
There are four main hazards
associated with electricity:
Shock: A shock can be defined as an electrical current travels in
closed circuits; occurs when a part of
your body becomes part of an electric circuit; or when an electric current enters the
body at one point and exits the body at another
Arcing or Sparking: Arcing or sparking occurs when
high-amperage currents jump from one conductor to another
Explosions: Occur when electricity
provides a source of ignition for an explosive mixture in the atmosphere
Fires: Electricity is one of the most
common causes of fire
Check back for more… Our next “Its Electrifying” posting will focus on rules to follow when using electrical equipment.
Pre Use Inspection
- Damaged or cracked housing, power source, or bits/accessories
- Dull blades (often more dangerous than sharp blades)
- Missing guards or protective devices
- Leaking gasoline, oil or other fluids
- Appears to be in poor condition
- Tool does not have 3-wire cord or is not double insulated
- Wear correct PPE
- Always wear eye protection
- Use proper tool for the job
- Use tools with 3-wire plug and make sure connections are tight
- Disconnect tool before making adjustments
- Follow the manufacturer’s instructions
- Ask supervisor or coworker about use, if unsure
- Do not point or operate tools in close proximity to other individuals
- Use spark resistant tools when working near a fuel source
- Do not use excessive force to cut/drill through hard materials
- Never place hand behind the material that is being worked on when the tool could push through
- Gasoline/ mixed fuel powered tools must be off and cool when re-fueled; use only in well ventilated areas