2nd floor EMT installation

An electrical layout with a load management plan allowed us to install the home runs. And similar to the 1st floor, we also had developed a detailed layout plan that determined the amount and location of outlets, switches, and light fixtures.

This plan is critical because the first step in an electrical installation, even before the home runs, is to place all the electrical boxes, whether they are for outlets, switches, lights, or junctions. Once all boxes are placed we could refer back to the load management plan and start to build a mental image of how everything gets connected with EMT tubing, including the home runs. And this is where Percy my electrician shines, because it takes quite a bit of experience and focus to organize and keep track of connecting everything.

For instance, a home run feeds into several circuits – typically three in our case. We have to structure the EMT tubing so that it feeds into each of the three separate circuits. In each circuit, we need to connect to outlets and link light switches to lights. Then there are three way switches with their traveller conductor that often require their own EMT run between the two switches. There are the kill switches to keep in mind while structuring the EMT layout. And then there are certain limitations we have to keep in mind, such as not to put more than nine conductors in any given EMT and the fact that code limits the number connections of EMT tubing to any electrical box to five. Do you see what I mean when I say this takes a bit of experience and focus?

As always, I had fun wielding the conduit bender. It is quite something to measure and complete a bend or offset and have it fit perfectly. Even more so when you have several bends and/or offsets on one single piece, and it still fits!

If you have read this blog for a while, you know that I am a big fan of “future proofing”. Even though using required EMT for the electrical installation takes a bit more time and resources, it allows me to go back at a later date and rewire things without opening up walls. And rather than just building to THE MINIMUM code, we placed outlets and switches with extra safety and user friendliness in mind.

But we went even further, and like on the 1st floor, we allowed for flexibility in the bedrooms. Rather than limiting reading lights, switches, and outlets to the primary bed-head-wall, we also included them on a secondary bed-head-wall, giving the end user the option to orient the bed one way or another.

 

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About Marcus de la fleur

Marcus is a Registered Landscape Architect with a horticultural degree from the School of Horticulture at the Royal Botanic Gardens, Kew, and a Masters in Landscape Architecture from the University of Sheffield, UK. He developed a landscape based sustainable pilot project at 168 Elm Ave. in 2002, and has expanded his skill set to building science. Starting in 2009, Marcus applied the newly acquired expertise to the deep energy retrofit of his 100+ year old home in Chicago.

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