|To the left if my friend Eric Marchbein, a registered master electrician, doing the dirty work in the box. One of the requirements set out by TrendLine is that you get a registered electrician to work in your box. That's a good idea, because while 110VAC will give you a nasty shock, 220VAC can kill you.||To the right, step 1: mounting the power transformer and an outlet for the power supplies (one for the Enersure, another for the Digi One SP RJ45 port server). The outlet is 110VAC, but the box also supplies 220VAC (2-phase) to the Power transformer. The PT can handle 3-phase for industrial applications. The ethernet cable is to the right – not yet hooked up.|
|To the left, step 2: installing the current transformers into the box around the circuits I want to monitor. The wires that come with the transformers are rather short – we'll have to extend them.||To the right, step 3: extending the leads on the transformers (with butt splices) and running the wires out of the circuit-breaker box. With 38 circuit breakers in the box, it got pretty snug in there, and I am very glad to have an experienced electrician to help. All in all, we used about 475 feet of wire to extend the 22 current transformer leads.|
|To the left, step 4: neatening things up, and routing the wires to the enclosure that will hold the Enersure unit. Notice that each wire is numbered, so we know which circuit they connect to. Ultimately, every wire will have at least 2 sets of numbers (one initial number, and one close to the terminal block, the location of which can only be determined as we build the connector block).||To the right, step 5: routing the wires to the enclosure, trimming
and attaching them to the screw terminals. Each side of the circuit breaker
box is in a separate bundle, and then each bundle is further divided for each
connector block, allowing me to easily trace any wire after-the-fact.
I used a Digi One SP to connect the Enersure (which is a serial device) to my ethernet. Digi also sells a mounting bracket to hold the Digi One, and it lists for around $50. Hah! I used screws to hold two velcro cable ties (for $0.85) instead!
|Finally, step 6: connecting the Digi One SP RJ45 port
server, plugging in the terminal blocks. Power on – no sparks –
and neatness counts!
Total elapsed time for installation: about 18 hours!