Project: observatory – Wiring


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We will wire the observatory for electricity with regular Romex cable, switches, and receptacles, but connect it to house power with a heavy-duty extension cord plugged into a GFCI receptacle on a nearby post. The power cord will be buried in plastic conduit, and hard-wired to the observatory wiring in a junction box attached to the bottom of the floor joists.

The post also has two CAT-5 cables for Ethernet connectivity to the home network. The second cable, originally intended for telephone service, will be reserved as a backup Ethernet cable.


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Updated February 15, 2018