Here's an easy one for Bucketman:

Which NEC Section/Article states the correct Ground-Pin orientation of a Receptacle?

... Just kidding!! [Linked Image] [Linked Image]

Here is the real Q:

Which of these Seperately Derived Systems (SDS) may use the OCPD on the Primary side to protect the Secondary side feeders - and why? :

<OL TYPE=A>

[*] 480 VAC Pri. x 120 VAC Sec. 1 Phase 2 Wire,

[*] 240 VAC Pri. X 600 VAC Sec. 1 Phase 2 Wire,

[*] 600 VAC Pri. X 120/240 VAC Sec. 1 Phase 3 Wire,

[*] 480 VAC Pri. X 208Y/120 VAC Sec. 3 Phase 4 Wire,

[*] 240 VAC Pri. X 600 VAC Sec. 3 Phase 3 Wire,

[*] 600 VAC Pri. X 120/240 VAC Sec. 3 Phase 4 Wire.
</OL>

All Transformers are Isolated types (Primary-Secondary windings Isolated), and are sizes between 37.5 and 45 KVA.

***NOTE***

*VAC = Volts, Alternating Current,
* Pri. = Primary,
* Sec. = Secondary.

This one is a piece of cake!

Scott35

Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!