I am working on cataloguing the hodge podge electrical system in my old house. There is an old fuse box that was converted to a junction box when they put the breaker box in. Inside this box there is one hot coming from the breaker panel that is used to power two different loads. The strange thing to me is that the loads have different neutrals.
The red and blue loads are connected to a common hot, but they lead to different neutrals. As you can imagine there are a bunch of different circuits coming from the breaker panel.
The house has old steel conduit running from light to light in the attic and all these lines are THHN or older cloth-and-rubber wire in conduit. Nothing is Romex. Here is the conduit grouping:
Conduit 1: 3/4" steel conduit from breaker panel to junction box. Contains 9 THHN conductors including the hot and both neutrals shown in diagram.
Conduit 2: 3/4" steel conduit from junction box with red load hot and neutral.
Conduit 3: 3/4" steel conduit from junction box with blue load hot and neutral.
Anybody have an opinion about this?