When the Electrician came it was certainly a learning experience. One thing was for sure, and that was the fact that there was no need for an electrician. Only the most un-handy people should call to have an outlet installed. Essentially there was conduit* run along the ceiling in the basement of the building, in order to give the wire an osha approved route to the new 220 volt outlet that would reside about 25 linear feet away from the circuit box. Laying out the conduit was an easy task, sometimes a bend needed to made in the conduit, or a clip needed to be screwed into the ceiling – but overall it is a very simple and extremely basic task, imagine routing a water hose around a few corners and nailing it to your ceiling. After he routed the conduit, then the three wires were pulled through, this again is only a matter of pushing the (very rigid) wires through the newly secured conduit route. There were three wires to begin with, a positive (red), a negative(black), and a neutral(green). These wires – once pushed through were then fastened (hard-wired?) into the circuitry of the units electrical panel, which consisted of making sure the switch was in the OFF position, and then putting the red to one of the contacts, the black to the other contact and the green to the grounding area, which is a separate area that looks like an aluminum strip with many holes drilled into it – opposite the actual black panel of switches. Again, this was what was thought to be the dangerous part that would decide fate, but as long as you make sure your switch is in the OFF position there is nothing to worry about.

So the wiring is in place in the electrical panel, the conduit is up, the three wires are through the conduit and coming up to the new outlet. While the circuit switch is still in the OFF position complete the outlets wiring, which is surprisingly self-explanatory. However where it gets confusing is that the wire (cable, it’s a very large set of wires – four of them) coming off and out of the actual motor had four wires.

[Apparently there are many different configurations of outlets – male and female. Obviously most all of them (all of them really) consist of a positive wire and a negative wire (red and black commonly), and from there, possibly a ground, and maybe a neutral. So you could have a 2-wire plug (pos & neg only), a 3-wire plug (pos + neg & ground), or a 4 wire plug (pos + neg + ground & neutral). Also, the ground and neutral are seemingly the same thing, or at least serve a similar purpose.]

The Brother DB2-B791-015 has (had) a 4-wire (2-pole) connection for the outlet wiring. Therefore it had a red, black, green, and white wire underneath it’s sheath. The red equals positive, the black equals negative, the green equals ground, and the white equals neutral. This was simple in theory except for the fact that a 4-wire male plug was almost inexistent. No hardware store or larger home improvement center had such a thing. Online there were supposed 4-wire male outlets, but they were not of the 2-pole type. Introducing the next question, apparently the poles are part of the 2, 3, 4, wiring question. So while it was possible to find a 4-wire – 3-pole male outlet plug, there was no such thing as a 4-wire – 2-pole male outlet plug. From this experience it is assumed that the 4-wire – 2-pole male outlet plug is an outdated, or outmoded system. This may be due to the difference between 110 volt outlets and 220 volt outlets and whether or not 220 volt outlets were the common thing when this particular motor was considered the most latest of servo motor technology. All of this of course is a complete mystery and any questions are usually three part questions. The answers to these questions are few and far between.

*Conduit – According to code, conduit can be galvanized steel pipe or plastic pipe. Metal conduit comes in three types: rigid (often preferred for outdoor use), intermediate, and electrical metal tubing (EMT) – a newer type popular for house wiring. Standard conduit diameters are 1/2 3/4″ 1″ and 1-1/4″. There are fittings to join conduit for straight runs and at 45-degree angles. The material is bent with a tool called a hickey. This excerpt was taken from, http://www.rusticgirls.com/electrical/wires-wiring-3.html

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