how does this circuit work?

[hubops]

Do tell us about all the switches associated with the two devices. .. any 3-way switches ? pull-strings ? John T.

[trader_4]

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nd light fixtures is 250vac 50hz. Most folks who post here are in North Ame rica where the power supplied to regular electrical outlets and light fixtu res is 120vac 60hz. Larger appliances will use 240vac. I had an instructor once tell the class,"Electrons are electrons." Meaning electrons are going to go where they want so you better guide them.^_^

your country. I found it. ^_^

er than what is used in North America. I did some modifications to some por table housing units manufactured in Australia and the wiring was stranded w here the wire used here is normally solid for use in wiring run to light fi xtures and electrical outlets. The question I have is, does the power suppl ied to your lighting circuits and electrical outlets read 230vac from hot t o neutral/ground? Is there a pair of hot wires at each outlet or is there j ust one hot wire? ^_^

al and ground. If they are switched separately using the same Line/Hot wire , you want to use the same neutral. Here in North America, a bathroom somet imes has two separate switches for the light and exhaust fan but there is u sually only one switch and the light/lights and fan are on at the same time . It's not rocket surgery. ^_^

I don't know because I can't see what's connected to the other wire at the light, the other wire at the fan. Whatever wire that is, that's what's serving as the neutral.

[Oumati Asami]

Not sure how to describe them. That are just simple switches on the wall, not 3-way. You flip one switch to turn on/off the fan, another switch to turn on/off the light.

[Oumati Asami]

Different countries use different color scheme. So, black is not always hot here. I don't know what color scheme is used in Myanmar. In shop, I see blue, yellow, red, brown, and other colors. So, don't assume black is hot.

When the fan is turned on, one of the two black wires is hot, i.e. this black wire is the neutral of the fan and controlled by the fan switch. The other black wire serves as the neutral (meaning it goes to the panel). The electricity flows from the fan switch through the fan to this black wire then to the other black wire (neutral) and ultimately, the panel.

When the light is on, the black neutral wire is still the neutral and the electricity flows from the light switch to the blue wire through the black neutral wire to the panel. In this case, the black wire from the fan is hot, correct?

When both fan and light are on, electricity from the blue wire and the black fan wire go through the black neutral wire to the panel, correct?

[trader_4]

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and light fixtures is 250vac 50hz. Most folks who post here are in North A merica where the power supplied to regular electrical outlets and light fix tures is 120vac 60hz. Larger appliances will use 240vac. I had an instructo r once tell the class,"Electrons are electrons." Meaning electrons are goin g to go where they want so you better guide them.^_^

in your country. I found it. ^_^

ller than what is used in North America. I did some modifications to some p ortable housing units manufactured in Australia and the wiring was stranded where the wire used here is normally solid for use in wiring run to light fixtures and electrical outlets. The question I have is, does the power sup plied to your lighting circuits and electrical outlets read 230vac from hot to neutral/ground? Is there a pair of hot wires at each outlet or is there just one hot wire? ^_^

tral and ground. If they are switched separately using the same Line/Hot wi re, you want to use the same neutral. Here in North America, a bathroom som etimes has two separate switches for the light and exhaust fan but there is usually only one switch and the light/lights and fan are on at the same ti me. It's not rocket surgery. ^_^

to the neutral. So if you have two switches connected to the hot wire, you can control two devices. One side of the device is hooked to the neutral an d the other to the switched leg. What I'd like to know is if the black wire is your power feed and hot all the time? o_O

No, that wire is a switched hot.

The electricity flows from the fan switch through the fan to

Ok

IDK what black wire you're talking about.

Yes, one neutral serves both.

[Pat]

Maybe I'm wrong, but you seem to be confused by the term neutral. Most people discuss power coming from the hot wire, going through the device (fan or light), and then returning via the neutral. In normal situations, switches are placed in the hot wires, not the neutrals.

blue wire

-----------------------------o switch o----------------\ hot (or hots) from panel to switches !

-----------------------------o switch o------\ ! ! ! Fan Light ! !

-----------------------------------------------o---------/ neutral (back to panel)

That was my crude attempt at a drawing. It looks OK to me, but you may see it in a different font. I purposely left out colors except for the blue which seems pretty clear.

[Pat]

Same as previous post except using a fixed font to make the drawing better.

[trader_4]

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ts and light fixtures is 250vac 50hz. Most folks who post here are in North America where the power supplied to regular electrical outlets and light f ixtures is 120vac 60hz. Larger appliances will use 240vac. I had an instruc tor once tell the class,"Electrons are electrons." Meaning electrons are go ing to go where they want so you better guide them.^_^

d in your country. I found it. ^_^

maller than what is used in North America. I did some modifications to some portable housing units manufactured in Australia and the wiring was strand ed where the wire used here is normally solid for use in wiring run to ligh t fixtures and electrical outlets. The question I have is, does the power s upplied to your lighting circuits and electrical outlets read 230vac from h ot to neutral/ground? Is there a pair of hot wires at each outlet or is the re just one hot wire? ^_^

eutral and ground. If they are switched separately using the same Line/Hot wire, you want to use the same neutral. Here in North America, a bathroom s ometimes has two separate switches for the light and exhaust fan but there is usually only one switch and the light/lights and fan are on at the same time. It's not rocket surgery. ^_^

t to the neutral. So if you have two switches connected to the hot wire, yo u can control two devices. One side of the device is hooked to the neutral and the other to the switched leg. What I'd like to know is if the black wi re is your power feed and hot all the time? o_O

Looks much better than the first one. It's clear enough. Hope it works. Th e only thing that is a bit of a mystery is that he seems to have more wires than needed, ie you just need two switched hots, a neutral and ground.

[dpb]

On 3/17/2018 9:38 AM, trader_4 wrote: ...

Pull a cable and it has however many wires as are in it...mayhaps don't need all of 'em but it's quicker/cheaper than pulling individual runs and what would typically be done in residential construction in US, anyways...who knows what they do in Myamar without being there???

[trader_4]

I would assume that he's only talking about wires that are actually connected to something, but who knows.

[Wayne Boatwright]

On Sat 17 Mar 2018 10:37:58a, dpb told us...

Many homes in our area (Phoenix) have two hots and one neutral in every ceiling juunction box, presumably to supply independent power for a ceiing fan and an attached light where each can be switched independently. The black and blue are hot and the white is neutral.