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2

You won't want conduit, as you'd need a huge pipe to fit 40 cables. Instead, the common solution is to use cable tray. It's available from many manufacturers, in many sizes, styles, and colors. Follow the mounting, and installation instructions for the particular product you choose.


3

From the 2014 NEC: 210.52 Dwelling Unit Receptacle Outlets. This section provides requirements for 125-volt, 15- and 20-ampere re-ceptacle outlets. The receptacles required by this section shall be in addition to any receptacle that is: (1) Part of a luminaire or appliance, or (2) Controlled by a wall switch in accordance with 210.70(A)(1), ...


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Yes, both sides of a door in habitable rooms for any wall space 24" or greater, except closets. Hallways only require one no matter how many doors, or wall breaks. 66" max height if memory serves correct for it to count as part of the wall outlets. Fixed cabinets do not count as wall space so not an issue if the outlet is accessible or not if inside a ...


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While cabinets don't count as wallspace -- the intent of that Code requirement is to make it so there are sufficient outlets available so you don't have to string extension cords all over the place. Also, no, a light switch doesn't count, as a) you can't plug things into one and b) switch loops didn't have a neutral until extremely recently.


3

Base Conductor Size Start out by using Table 310.15(B)(16), and applying any required corrections, to determine what size conductors you'll need. For your situation, we'll assume we can use the 75°C column, that you want to use copper conductors, and there's no other corrections required. So in your case, if you want to install a 50 ampere panel, ...


1

If you are installing a 50 amp sub-panel normally you could use #8 wire and use 3/4" pipe. You can fit 4 - #8 wires in a 3/4" pipe so there is room for a ground wire with your two hots and a neutral. If you are installing a 60 amp sub-panel #6 wire is good for 65 amps at 75°C. (You have to use the 75°C rating since no one makes a 90°C rated breaker.) Using ...


1

Are your 8-inch planks laid tightly together, or is there significant space in between? Old roofs that were originally topped with rigid shingles (wood or tile) were sometimes installed with spaced decking planks, and that kind of decking is not suitable for use under modern asphalt shingles, which are flexible. However, if the planks are relatively tight ...


1

I am not a plumber but I think your plan is just fine according to these tables: http://publicecodes.cyberregs.com/icod/ipc/2012/icod_ipc_2012_7_sec009.htm http://publicecodes.cyberregs.com/icod/ipc/2012/icod_ipc_2012_7_sec010.htm A 3" pipe is plenty for the number of DFU's in your stack and horizontal run. The 2" vents on the sinks are probably even ...


5

You have a complicated question here and the best (and most legally-correct) answer will probably come from talking to your local building inspector. Preferably before a lot of work has already been done... First, the question of which building code is even applicable is not clear to me. The International Residential Code ("IRC") only applies for 1- and ...


3

According to Table R602.3(1) of the International residential code (IRC), you have to use two 16d (3 1/2" x 0.135") fasteners to end nail the top or sole plate to a stud. If the studs were toe nailed to the sole plate, then either three 8d (2 1/2" x 0.133") or two 16d (3 1/2" x 0.135") fasteners would be required. International Residential Code 2012 ...



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