For installations according to US and similar wiring codes: the level as other light switches in the rest of your house and next to the door opening.
For installations according to UK wiring regulations: it is not permitted to position a normal shoulder-height light switch inside a bathroom.
A switch for the light(s) in a bathroom, shower room or toilet can be positioned either 1) OUTSIDE the room at the level of other light switches in the rest of your house, next to the room's door opening, or 2) as a pull-switch mounted on the ceiling INSIDE the room, just inside the door opening.
However, since the latest UK wiring regulations were issued, only a qualified and Licensed Electrician is allowed to install or modify electrical wiring in a bathroom, cloakroom/toilet, kitchen or any other kind of room where water taps ("faucets" in US parlance) sinks, baths, showers, etc. are installed.
The height is usually based on the type of mirror that is to be installed above the sink. Take the height of the sink plus the height of the mirror and add 6 inches to find the center for the placement of the fixture junction box. If there is to be a space between the sink and the mirror add that measurement in to factoring of the height.
You should first remove your old bathroom light fixtures and then very careful screw in the new bathroom light fixtures. It is a good idea to have the electricity off so you don't hurt yourself.
A triplex outlet. It is a simple device unless one or more of these switches are "3way" switches.
You would need to purchase a duplex switch. As for the pilot light look for a duplex switch that has a neon pilot light that is incorporated into the handle of the switch. When the switch is turned on the switch's handle will illuminate.
The use of a four way switch is needed when a load (such as a light) needs to be controlled from 3 locations or more. For instance when you walk down a hallway and there is a light there are probably at least two switches one at the beginning of the hallway and one at the end. These two switches will turn the light on or off from either location. These two switches will be three way switches. When the need to control a light or a load from more that two locations arises a four way switch is introduced. A light or load can be controlled an unlimited amount of locations by adding four way switches which are wired in between the two three way switches. Think of a sandwich where the three way switches are the bread and the meat and veggies are the four way switches. You can put as much meat and veggies as you want, but you always need two slices of bread on the top and bottom.
the oulets yes the switches would be a no
It's easier to handle.
It is not any different except that it cannot be located within reach of the tub or shower.
Light switches can be purchased from SparkyDirect, they have a huge range of light switches other websites offering light switches are HomeBase, argos and ebay.
To make it easier to use. I prefer a light switch on the outside of the bathroom because it makes it easier to find especially if I am in a hurry.
That's one I've never seen. Does the bathroom light turn ON when the bedroom light is switched Off? Does the bathroom light switch turn the bathroom light on and off normally when the bedroom light switch is left on? Need to answer these questions, then find where the bathroom light power comes from. It's power supply should either go directly from the power oanel to the bathroom light or to the bathroom light switch. The bathroom light switch merely acts as an interrupter for the hot leg of this power supply.
The electrical plan is more of a tool in architectural design than interior design, where the architect in a residential design will place switches, outlets, and light fixtures into the floor plan. An interior designer could then use this information to figure out key issues such as which switches affect each light, and where to place electrical components in the design such as electronics. Also the placement of 220 Volt Outlets directly affect the placement of objects such as washer/dryer and electric appliances in the kitchen. In short, the framework of the electrical plan dictates the placement of devices, fixtures, and appliances throughout the architectural plan.
It is dependant on whether the switches are in wired in a parallel or series configuration. If the switches are wires in parallel then both switches would have to be off to turn the light bulb off. Either switch could turn the light bulb on. If the switches are wired in series then both switches would have to be on to turn the light bulb on. Either switch could turn the light bulb off.
Modern light switches are made from plastic, copper, and (maybe) coiled steel springs.
In a light switch factory......
Yes, because the light is using 3-way switches. There is always "power" travelling between the switches.
Dimmer switches go bad, more often than regular switches.