Suggest to replace your European power cord (L/N/GND) with a North-American
one (L/L/GND).

North-American power outlets don't allow to reverse L and N  supply wires of
an apparatus to avoid exposing the user to some 120VAC. Guess it's due to
some appliances equipped with 2 wire power cords, where N is connected
internally to an accessible metallic chassis or parts (old radio/TV
receivers with non-isolated power supplies). That's why your electrician
doesn't like connecting the facilities L to your device designated N.

Alexandru G.




From: [email protected] [mailto:[email protected]]
Sent: Tuesday, June 03, 2003 11:57 AM
To: [email protected]
Subject: Wire Colors



I have a customer that wants to remove the power plug (and IEC 309
style) from our equipment and connect the wires to a power distribution
system beneath the computer floor. This distribution system uses an IEC
style "din rail" type of barrier strip where one inserts the bare wire
into a hole and tightens two screws to affix the wire. 

My device is rated 200-240V single phase. When the plug is removed you
have a blue, brown and green/yellow conductor. The power source is a
208V leg (two phase?) drop with two black wires. The electrician refuses
to connect the blue (neutral) wire from the power cord to a black
(phase) wire. How can I resolve this. Regardless of whether we are
talking blue/brown or black/white, the white and blue are identified as
neutral. Because we allow 200-240V single phase this does not preclude
the use of 208V phase to phase input.

Suggestions/Comments

Thanks

Rick Busche
Evans & Sutherland




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