In North America, the earthing conductor is described as a green wire with a
yellow stripe, while in Europe it is described as a yellow wire with a green
stripe. Fortunately, there is enough tolerance in the specifications on both
sides of the pond that a single solution works in both locations.
Don Borowski
Schweitzer Engineering Labs
Pullman, Washington
Peter Merguerian <[email protected]> on 09/02/2002 08:21:04 AM
Please respond to Peter Merguerian <[email protected]>
To: "\"EMC-PSTC (E-mail)\" <" <[email protected]>
cc: (bcc: Don Borowski/SEL)
Subject: Green/Yellow Earthing Leads
Dear Group,
What is the percentage of color over a surface area for the insulated
green/yellow earthing conductor. Is it better to have more yellow than green
or more green than yellow. I know North Americans prefer more green than
yellow and Europeans like more yellow than green. Any historical reason? I
hope it has nothing to do with the Boston Tea Party! Can the group we come
up with some compromise?
BTW IEC 60 204 standard for electrical equipment for machinery states "the
bicolour combination GREEN-AND-YELOW shall be such that on any 15mm length
one of the colours covers at least 30% and not more than 70% of the surface
of the conductor, tje other colour covering the remainder of the surface".
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PETER S. MERGUERIAN
Technical Director
I.T.L. (Product Testing) Ltd.
26 Hacharoshet St., POB 211
Or Yehuda 60251, Israel
Tel: + 972-(0)3-5339022 Fax: + 972-(0)3-5339019
Mobile: + 972-(0)54-838175
http://www.itl.co.il
http://www.i-spec.com
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