Maybe the 208Y/120V Service was GFPE???
I have heard of an installation where there was GFPE on the Service Disconnect of a 208Y/120V 3Ø 4W. system - and it was for Campus Housing (Dorms).
The question was asked to me, if the service required GFPE per the NEC (an Engineering firm had produced the Electrical Plan Set, which was being bid from).
Not having any OSHPD / similar experience, my response was to verify with the CEC (California Electrical Code), along with the AHJ(s), to verify if the service disconnect or Panelboard Feeders required GFPE.
Never heard from that person, which leads me to believe _SOMEONE_ must have required it (or the EE firm is padding the installation for a higher commission).
Other than this possibility, the story sounds like "Bandini Information" to me!
*** "Bandini Information" may be thought of as:
- Information having a Male Bovine Fecal Factor, higher than 0.995 - near unity fecal factor,
- Information that is typically found in 2-3 cubic foot bags, in the Lawn and Garden section of Home Centers,
- Information, which when spread across Lawns, will result in the Grass growing much greener,
- Information, that made up the "Bandini Mountain", of which the person was Skiing down in the Bandini Fertilizer Commercial - circa 1970's,
- Information having a very offensive odor to it.
Opinions???
Scott