Do you mean that you want to prevent somebody else from restoring the
supply to it without authorisation? If so, then is the equipment hard-
wired to the supply, or connected via a plug and socket? If it's hard
wired then install a lockable isolator switch, and lock it out when
the equipment is not in use. If it's connected via a plug and socket,
then things get a bit more difficult. You could install a lockable
isolator for the socket, or a socket with a built-in lockable
isolator, this would work best if there are only one, or a few,
sockets of the type which the equipment uses, and no other equipment
which needs to be used, via one of these sockets, when the wellder is
not in use. Devices are available for certain types of industrial
plug, which attach to the plug and lock in place, and which then
prevent the plug from being inserted in a socket. Here is such a
device which Mennekes make for use with ceeform plugs for example:
I susoect that similar devices are probably available for some other
types of industrial plugs, but possibly not for domestic ones. If the
equipment is connected via a plug and socket where in the World are
you, and what type of plug does it use?
On Nov 26, 11:13 pm, email@example.com wrote:
The objective is that only when the welder uses the machine the supply
has to go to the welding transformer and energise.All other time the
welding transformer should not receive the supply and hence losses can
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