Recent comments in /f/DIY

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−1

rivalarrival t1_iy9v7js wrote

>I've seen tutorials showing that way, but then I've also seen some say that the new NEC updates for 2018(?) made it a requirement to use 12-3 and include a capped neutral... for whatever reason.

This is inaccurate. The NEC requirement is 404.2(C), and applies only to switches controlling lights. Even if it did apply to more than lights, you are not obligated to upgrade your switch wiring to the new code.

And even if it applied to non-lighting and you were obligated to update it, there are seven listed exceptions, and three of them would probably apply: #2, you have access to the wiring without removing finishing materials; #4, the switch serves only a specific appliance rather than the entire room; #7, receptacle loads. (If the switch controls a receptacle rather than a light, it does not require a neutral.)

The purpose of the NEC requirement is that "smart switches" need a neutral return to provide power for their circuitry.

The way they had it set up is not ideal from a maintenance and repair perspective (you have to pull the dishwasher to repair the disposal), but is perfectly fine from a wiring perspective.

2

strongmans t1_iy9ubxx wrote

Use High Density Foam attached to the concrete walls and tape the seams. This is your vapor barrier. Now stud a wall up as normal with sill gasket on the bottom of the wall to prevent the wood from touching the concrete. You can insulate the 2x4 walls as well but do not add another vapor barrier (plastic).

The floor is fine as is.

122

StoneTemplePilates t1_iy9toah wrote

What I was getting at is that op is completely overcomplicating this job by adding anything to it at all. (S)he began with a concern about the wiring being contained within the dishwasher and wanting to rectify that, but it doesn't need rectifying. Just change the dishwasher and move on is what I'm saying. Cheaper, quicker, and no code issues that be dealt with.

1

allicat828 OP t1_iy9tlvb wrote

20 years indeed - the hot water knob in the shower wouldn't budge, so you could either taking a hot shower or a scalding hot shower. Had to turn on the sink during the summer.

And I kid you not - after taking the fixtures off in the shower, the hot water that previously fed the toilet turned cold and the sink was no longer scalding right after turning it on. It's been two days and already an adventure.

I was hoping to avoid taking it down to the studs but that honestly might be less work anyway.

11

emcturkeyshirt t1_iy9rzxm wrote

That is up on black back on white rule…. And there is no neutral involved. You’re making the white wire hot……………..hence phasing it black.

Switching a neutral will never work…. In you single phase home…. It just won’t really work.

On a three phase system, well breaking or switching a neutral will create a dangerously unbalanced load. Possibly resulting in blowing up your lights and electronics.

Don’t ever switch a neutral. You can use the white wire as hot in one specific scenario. But it is NOT a neutral.

1

farmdve t1_iy9rlz0 wrote

Cars in the heat outside will generally reach 60c inside the cabin. A lithium ion battery hidden behind the dash may stay at those temps even after you've turned on the AC due to the restricted airflow.

In negative temperatures there are also anomalies and most cars need a few minutes to heat up.

1

who-really-cares t1_iy9r8qw wrote

Just found the code for anyone interested.

404.2(C) Switches Controlling Lighting Loads.

The grounded circuit conductor for the controlled lighting circuit shall be provided at the location where switches control lighting loads that are supplied by a grounded general-purpose branch circuit for other than the following:

(1) Where conductors enter the box enclosing the switch through a raceway, provided that the raceway is large enough for all contained conductors, including a grounded conductor

(2) Where the box enclosing the switch is accessible for the installation of an additional or replacement cable without removing finish materials

(3) Where snap switches with integral enclosures comply with 300.15(E)

(4) Where a switch does not serve a habitable room or bathroom

(5) Where multiple switch locations control the same lighting

load such that the entire floor area of the room or space is visible from the single or combined switch locations

(6) Where lighting in the area is controlled by automatic means

(7) Where a switch controls a receptacle load.

2