ever see a construction worker welding outside in the rain?
sure... it happens all the time, but not one of them is using alternating current.
Apparently, Lincoln agrees with you.
Here is a quote from their Welding Guide, PP-40
http://www.lincolnelectric.com/asse...AlloySteels-Excalibur-Excalibur7028/c2410.pdf
ELECTRIC SHOCK can kill.
1.a. The electrode and work (or ground) circuits are electrically
塗ot when the welder is on. Do not touch these 塗ot parts with
your bare skin or wet clothing. Wear dry, hole-free gloves to
insulate hands.
1.b. Insulate yourself from work and ground using dry insulation.
Make certain the insulation is large enough to cover your
full area of physical contact with work and ground.
In addition to the normal safety precautions, if welding must be performed
under electrically hazardous conditions (in damp locations or
while wearing wet clothing; on metal structures such as floors, gratings
or scaffolds; when in cramped positions such as sitting, kneeling or
lying, if there is a high risk of unavoidable or accidental contact with
the workpiece or ground) use the following equipment:
Semiautomatic DC Constant Voltage (Wire) Welder.
DC Manual (Stick) Welder.
AC Welder with Reduced Voltage Control.
1.c. In semiautomatic or automatic wire welding, the electrode, electrode reel,
welding head, nozzle or semiautomatic welding gun are also electrically
塗ot?
1.d. Always be sure the work cable makes a good electrical connection with the
metal being welded. The connection should be as close as possible to the
area being welded.
1.e. Ground the work or metal to be welded to a good electrical (earth) ground.
1.f. Maintain the electrode holder, work clamp, welding cable and welding machine
in good, safe operating condition. Replace damaged insulation.
1.g. Never dip the electrode in water for cooling.
1.h. Never simultaneously touch electrically 塗ot parts of electrode holders connected
to two welders because voltage between the two can be the total of
the open circuit voltage of both welders.
1.i. When working above floor level, use a safety belt to protect yourself from a fall
should you get a shock.
1.j. Also see Items 4.c. and 6.