Multiple Switching Operation applied to lights in a camp
Multiple Switching Operation is a system where the street light can be energized and de-energized (switch ON and OFF) from multiple location by simply a push button switch. Figure below (A) illustrate the layout of the street lights (L1,L2,L3…Ln) which are installed in the street of camp M. By pressing any one of the push button switches P1,P2,P3,P4, and P5 installed in buildings A,B,C,D, and E respectively, one can switch On and OFF the street lights. Multiple Switching Operation applied to lights in a camp Control Circuit Operation Figure below (B) illustrates the control circuit of a multiple switching operation. Encircled A and B maybe the power made of relay or contactors. Encircled C is the power contactor that will energized the street lights (L1,L2,L3…Ln) directly from the source. Pressing any one of the five push button switches (P1,P2,P3,P4 and P5) will energized contactor A. For example, pressing the push button switch P3 which is at the Administrator building will cause th...