At 11/4/98 11:53 AM, you wrote: > >I have the following information for wiring an international three phase >unit; >Five wire- 4 conductors plus ground > Line- 1 brown, 2 blacks > Neutral - 1 light blue > Ground - 1 green/yellow >Are these colors correct? >How do you differentiate between the two blacks? >Is there a standard that mandates colors for three phase wiring? >Thank you for any information. > The colors are correct as far as I know. Normally the position of the wires in the cable would indicate the function of the brown and black wires. The position of the wires in the cable should be blue(L1)- black(L2) - black(L3).
If you are not sure about "reading" the position of the wires in the cable then you could also use a commercially available cable where the wires for the lines are black and where on each of which a number is printed (1=L1, 2=L3 and 3=L3). Best regards, Pieter Robben ------------------------------------------------------- NMi Certin B.V. - Location Niekerk / The Netherlands NB and CB for EMC, TTE, Radio and Electrical Safety Tel: +31-594-505005 / 1-860-873-1454 (NMi USA Office) Fax: +31-594-504804 / 1-860-873-1947 (NMi USA Office) Email: [email protected] / [email protected] (NMi USA Office) -------------------------------------------------------
