Is it 42 inichs
150cm
For a standard switch, it doesn't matter. If it's a 3 way switch, "hot" is connected to the "common" connection.
The standard height is around 12" to 15" the bottom of the box above the floor but for the disabled you can install them higher but no more than 48" above the floor. Pick a height that will work for the disabled and install all of them the exact same height.
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.
usually most light switches sit between 42'' and 48''
Standard is 48" to the top of the switch box.
4'
A standard light switch typically has dimensions of around 1.5 inches in width and 4.5 inches in height.
The standard size of a light switch is typically around 4.5 inches in height and 2.75 inches in width.
150cm
A standard light switch cover typically measures around 2.75 inches in width and 4.5 inches in height.
Standard switch plate dimensions for electrical outlets are typically around 2.75 inches in width and 4.5 inches in height.
The standard height they are placed is no more than 48" above the floor. I mount my switch boxes with the top of the box 48" above the floor. You can install them lower if you wish but no lower than 15" above the floor.
For a light switch in the home four foot to centre is a reasonable height. Some contractors set the outlet box at four foot to the bottom of the outlet box and other contractors set the box to four foot to the top of the outlet box. There is no code rule that stipulates the exact height that the outlet box must be set to.
YES
According to the Philippine Electrical Code, the standard height for an electrical switch is typically between 1.2 meters (approximately 4 feet) and 1.3 meters (about 4.3 feet) above the finished floor. This height is designed to ensure accessibility for most users. However, specific requirements may vary based on the type of building or the intended use of the space. Always refer to the latest code or local regulations for compliance.
There is no specific distance. When a house is roughed in, before the drywall goes on, the box is mounted on the first wall stud from the rough in opening of the door inside the room. Height wise center of box about 4 feet.