As an electrician, I know the weakest point of a circuit is a splice. According to a DIY network, there is a program showing you a house that was pre-built with existing plugs that the builder will connect. It is against the N.E.C. (National Electric Code). You can not make any splices that are not accessible. It has to come out to an accessible location and junction. These 'plug and play' units that people try to build are not good. The connection points are not good.
The less splices you have in a circuit, the better that circuit is. The more circuits you have in a house, the better the house is. That's because you are not splicing from one to the other. Most houses are daisy chained. It means one circuit goes from one light to another light to another light and so on. But your electrician should limit that and limit the circuits so that you don't have the whole house lighting on that one circuit. You are not supposed to exceed 80% of the lighting. If I see that my load will exceed the limit on the circuit or it's getting close, I will add another circuit.
Trailers have the junction boxes underneath them. That is legal because it's accessible. When you see the two halves of a trailer, there is a junction box underneath it. That is the weakest point. Every time they would have a problem, and they would call me out, I knew to go to that junction box. That was where the splice was. When they would call for a service call and say that half their trailer was not working, I knew exactly what the problem was. So, I went underneath there and sure enough, the splices weren't made properly.
They try to plug and play. It doesn't work. What is plug and play? Instead of wiring run from point A to point B, there is a separation and that separation is connected by way of a plug. I heard that central air conditioners are going to be made that way. There are soon to be developed on that plug and play system. They want the central air conditioners simplified because they don't have enough technicians qualified enough to trouble shoot problems. They want a plug and play unit so that they can sell more units to less qualified idiots. Do you have splices in your house?
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