Branchement de va et vient

Branchement de va et vient Source google image: http://2.bp.blogspot.com/-hmAoHazuSNg/VMEhsg81VTI/AAAAAAAAAQY/7oK8O84dFkM/s1600/schema%2Belectrique%2Binterrupteur%2Bdouble%2Bva%2Bet%2Bvient%2B.jpg

Schéma branchement

Schéma branchement Source google image: http://1.bp.blogspot.com/-nwyYs8MFJ1k/VImur1tkHNI/AAAAAAAAALo/Vg0dCJC8aAk/s1600/schema%2Bbranchement%2Bcablage%2Bparafoudre.jpg