A hallway or corridor is an interior space in a building that is used to connect other rooms hallways are generally long and narrow hallways must be sufficiently wide to ensure buildings can be evacuated during a fire and to allow people in wheelchairs to navigate them.
Two way switch
Two way switch is an electric switch the medium of this switch can be controlled from one place to another by electric lamp fan or anything electrical device. 2 way switch is 3 wire system new harmoised cable colours. two way switch means having two or more switches in control lamp fac etc different location. wiring two way switch light. two way switch can be operated from any of the switch indpndntly means whatever be the position of other 2way switch ON & OFF. you can control the fan or light with other switch. there 2 way switch methods of making two way switch connection one 2 wire control another is 3 wire control.
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