ECN Electrical Forum
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Who said anything about somebody was in their right mind when this cluge was installed? Don't you think that the disconnect is a wee bit oversized for the service?

My guess is that initially the whole thing was cobbled together by someone who did not need to meet any codes at the time the structure was built.

Larry C

That can't be a 3Ø meter.
Unless you guys do things very differently in the US with 3Ø supplies, wouldn't there need to be more wires on the LOAD side of the meter?

Now you've gone and got me all confused.

Well, there is corner grounded delta, but that was never done in houses.

My grandmother's house, built in the 1890's, had a 120V 15A service, and fuses in the neutral, as well in the hot wires. Back in the early days, there was some concern that neutrals might get overloaded somehow. The house had the earliest form of BX cable, but no knob and tube.
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measure once, cut once, then redefine the requirement...

My guess? 3 phase disconnect and single phase 3 wire meter! Just some moron who scrounged some old disconnect and fused the neutral. Baaad idea in my book - in a single phase 2 wire circuit a fused neutral is not that dangerous unless the neutral fuse blows and someone thinks: "The lights are off, that means I can work safely!" or only removes the phase fuse. When it comes to three wire or three phase circuits things get nasty! Floating neutrals aren't nice.