Pigtail Wire Size?

hi guys,



Im a 1st year apprentice sparks so pretty inexperienced! i have a job on during the week to wire a bathroom extractor fan in for my friend. He wants it to come on separately from the bathroom light.



Theres a 2 gang switch outside  the bathroom, one for landing lights other for bathroom. So im thinking of replacing this with a 3 gang switch for the fan.



Im gonna take permanent feed from one of the two other switches ie(bathroom or landing) to the fan switch 'common' to power it, then also take a permanent feed for the fan from the 'common' side of this new switch as its a timer fan.



Then switch feed from L1 on new switch to fan. And finally neutral from bathroom light fitting to fan. I know that these 3 cables going to fan have to be isolated at another switch before going to fan!



Am I on the right track. Thanks in advance.
      

wanted to get feeback on my crude wiring diagram i put together for my small bathroom remodel. does it appear to be sound or am i way off base??



details:



* 20A dedicated circuit

* 12/2 wiring

* outlet's will be GFCI

* double gang box will contain:

* timer unit for exhaust fan

* double switch for heat lamp and lights

* Ground wiring is not shown but each fixture/outlet/switch will be connected to ground wire

* by calculations, the 34cu box is fine for the number of conductors/size of wiring. per box specs could handle 15/12g wires.

* the scanner cut off the bottom part of the picture, the 2 lights on the right are fed from the same switch, neutral's connected together.



F = Exhaust Fan

L = Light

HL = Heat Lamp

T = Timer switch

S = Switch

H = Hot

N = Neutral

Wire Nuts are in the box connecting the pigtails



Thank you for your input.
      

Hello,



I currently have one light switch which operates an outlet in one of my bedrooms.  I want to add a ceiling fan that has independent switches for the fan and light - but I want to make sure i'm wiring it correctly and safely.



Current (First Pic)- Live hot feeds into bottom of switch (bottom insert hole) and the all of the bedroom outlets (pig-tailed) tie into the bottom of the switch on the screw.  Coming out of the top of the switch is one hot which feeds to a single outlet.  All of the neutral and grounds are tied together.



New Plan (Second Pic)- Remove the constant outlet hot from the screw, add a new hot wire to the top of new switch and run a wire up to the attic for fan.  Add another hot wire from the bottom of that switch to the third switch and run another wire up to the attic for the lights.  Re-connect the constant outlet wire to the screw of the last switch.  Connect all the neutrals and all of the grounds together.



At the top of the ceiling, connect the neutrals and grounds together with the fans neutral and ground.  Connect the fan hot to the fan switch hot, and the fan light hot to the light switch hot.
      

I have 3 bedrooms on 15 amp circuits, 14 gauge wire. Original wiring is one bedroom is on one circuit and the other 2 bedrooms on another circuit. The wall switches in each switched the top half of an outlet in each room. I converted the wire at the wall switch to a 110V feed from the outlet and ran 14/3 from the switch to the ceiling for a ceiling fan. I replaced the outlets since the jumper was cut to isolate the 2 plug ins for switching. Is this whole scenario code compliant?
      

i have 3 switch sets in my house that are giving me absolute fits.



#1  kitchen switch, controls the light over the outside door




    Code:

   

3 sets of lines coming in,



line from the breaker panel (power)



line to the ceiling lights 



line to the outside porch light.

i cannot get this 3 line to work without tripping the breaker every time i turn the switch off



#2 bathroom switches




    Code:

   

power feed line



line to the light over the medicine cabinet



line to the second switch to control the exhaust fan.

same issue as the first set, flip the switch and trip the breaker (different breaker from the kitchen switch)



#3 living room switch and plug controlled via switch




    Code:

   

 power feed line



outside porch light line



line to wall switch to control the lower wall outlet

flip switch, trip breaker



the switches i have are "1 pole" am i using the wrong switches for this job?
      

I want to run a new 12/3 to wire a room added on the back of the house. One circuit will be 6 wall outlets. The other will be a ceiling fan and 4 recessed cans. Can I add 2 outdoor lights-using standard outdoor bulbs-to the same circuit as the ceiling lights? Do I use the wall switch(box properly sized) as the junction for the outlet wiring and feed to wall switch for outdoor lights?
      

I replaced a ceiling light with a fan/light with a remote. everthing works. their is one light switch and one dimmer switch. The dimmer switch has a red wire and a black wire connected to the black wires coming out of the dimmer switch, plus a green wire hooked to the metal portion of the dimmer. My question is: Do I have to remove the dimmer switch, if so, can I disconnect the red and black and hook them together? If I have to replace the dimmer with a regular switch, what kind of switch do I get?

Thank you
      

Have a tricky 3 way setup that I'd like to get input and ideally a wiring diagram for. Here's the setup:



Switch box at bottom of stairs

Switch box at top of stairs.

1 light at top of stairs, 14-2 wire coming into top of stairs box

1 light at bottom of stairs, 14-2 wire coming into bottom of stairs box

Feed from panel (14-2) coming into bottom of stairs box

14-3 wire going between bottom and top of stairs box.
      

Hi,



I would like to wire a switch to be able to cut the power to the ceiling mounted outlets that feed our garage door openers. Running new wiring to them will be a bit cumbersome, so I am hoping to avoid that. The ceiling outlets are powered by light fixtures in the garage (one near by each outlet). There is a 3 wire romex cable running from the light switch to the first light and another one between the lights, and then regular 2 wire romex cables from the light fixtures to the outlets. The red wires in the 3 wire cables to the lights are switchable, the black wires are always hot.



I mainly want to be able to cut the power to the doors when we are away on vacation, and the reason for that is that one night both doors somehow opened up - I have no idea why. I'd hate for that to happen when we're away. Unplugging and plugging in the openers is a bit of a hassle due to the high ceiling.



I thought about wiring in a switched outlet so that I could just reach up with a long handle of some sort and switch off the power to the outlet. It would not be ideal, but definitely easier than getting the ladder out and unplugging the door openers.  However, there is possibly another option that I'd like some input on if anyone cares to comment. I believe I could wire in a switch on the wall next to the light switch that would allow me to cut the power to the black wires in the 3 wire cables. This would cut the power to the ceiling outlets and anything downstream from there (possibly an outside light, I would need to check on that).



My question is, are there any potential issues with this sort of wiring? Is there perhaps any code violation if both hot wires in a 3 wire cable can be switched off separately?



Thoughts?
      

I'm installing a 2.8kW fan assisted oven (no hob) I done some cable sizing calculations and voltage drop calculations and added 50% overload in aswell and I found I could use a 2.5mm cable to supply it. I also found I could use a 20A MCB, a friend said that he would use a 32A to be safe but didnt give me any other reasons why? Is this better or would it stop it from tripping under fault conditions? Is it also acceptable to use a 20A double pole switch to isolate it?



Thanks for any feed back