are sure the wrench operates properly, place the suitable
equipment on the impact-driving anvil and go ahead
with the job at hand.
SAFETY PRECAUTIONS FOR USE WITH
PORTABLE ELECTRICAL TOOLS
When portable electric tools are used, you should
use the following procedures:
Before portable electrical tools are used they
must be inspected and approved for shipboard
use by the ship's electrical safety officer.
Prior to the use of any portable electric tools, you
should make sure the tools have a current ship's
inspection mark. Additionally, visually examine
the attached cable with the plug and any
extension cords for cracks, breaks, or exposed
conductors and damaged plugs. When any
defects are noted, the tools should be turned in to
the ship's electrical shop for repair before use.
Before plugging in any tool, be sure the tool is
Personnel using portable electric tools are
required to wear safety glasses/goggles.
Portable electric tools producing hazardous
noise levels in excess of the limits set forth in
OPNAVINST 5100.19 (Series) are required to
be conspicuously labeled. Personnel using tools
designated as producing hazardous noise levels
are required to wear proper ear protection, as
issued by the medical department.
Only explosion-proof (class I, group D, or
better) portable electric tools should be used
where flammable vapors, gases, liquids, or
exposed explosives are present.
Hand-held portable electric tools authorized for
use on board ship shall be equipped with
ON/OFF switches, which must be manually held
in the closed ON position to maintain operation.
Rubber gloves must be worn when you are using
conditions; for example, wet decks, bilge areas,
working over the side, in boats, and so forth.
Leather glove shells should be worn over rubber
gloves when the work being done, such as sheet
metal work, could damage the rubber gloves.
SAFETY PRECAUTIONS FOR USE WITH
You should use the following procedures when
using extension cords:
Only three-wire extension cords that have
three-pronged plugs and three-slot receptacles
should be used.
Because a metal hull ship is a hazardous
location, personnel who must use portable
electric devices connected to extension cords
should take the time to plug the device into the
extension cord before the extension cord is
unplugged from the bulkhead receptacle before
the device is unplugged from the extension cord.
Electrical cords shall be cared for as follows:
Cords should not be allowed to come in
contact with sharp objects. They should not
be allowed to kink nor should they be left
vehicle/foot traffic. When it is necessary to
run electrical leads through doors and
hatches, the cords must be protected to
guard against accidental closing of the
Cords must not come in contact with oil,
grease, hot surfaces, or chemicals.
Damaged cords must be replaced. They are
not to be patched with tape.
Cords must be stored in a clean, dry place
where they can be loosely coiled.
Cords extending through walkways should
be elevated so they do not become a tripping
hazard or interfere with safe passage.
Extension cords should be no longer than 25
feet (except repair locker and CV flight deck
cords, which are 100 feet long). No more
than two such cords should be connected
together for the operation of portable
Identify the different types of power tools.
What are electric drills used for?