You should
always turn off
the electrical
power at the
source through
the circuit
breaker before
beginning work
on your project.
You will want to
do this because
even if you flip
a wall switch
you could still
have a live
appliance or the
socket could
still be live.
Do not trust the
distribution
panels that show
which circuit is
connected to
which breaker.
It is better
to be safe than
sorry.
You should
make sure the
circuit is dead
by using a
voltage tester
first. You can
use the assistance of
someone to help
you to test the
circuit breaker
and the fuse box
and not have to run back
and forth the
entire time.
You’ll want to
tape the circuit
breaker into the
off spot so that no one
tries to turn it
back on while
you work. You
should not turn
the power on
until you are
finished with
everything.
You can turn
off a switch,
you can not turn
off the wires
that are going
into the
electrical
distribution panel from
the outside. You
should not fool
around with thee
wires and do not
go anywhere near
them if you
have metal with
you. If you
think there is a
problem with
these wires
you’ll need to
call your electric
company.
Make sure not to
stand in any water
or on a damp floor
because you could
get shocked.
Put a rubber mat
on the ground if
there is water
around or if the
floor is wet. You
should always wear dry clothe
and shoes. Call a
pro if you are
concerned about
anything related to
safety.
The free-lance
writer Kurt
Schefken is
particularly
passionate about
themes related
to cnc machines.
You might come
across his
abstracts on
used cnc
electronics
at
http://www.insidewoodworking.com
and various
other sources
for used cnc
electronics
knowledge.