Source google image: http://mcre.us/wp-content/uploads/2018/09/normes-electriques-maison-individuelle-schema-installation-electrique-circuit.jpg
Norme de dessin schema electrique
Source google image: http://mcre.us/wp-content/uploads/2018/09/normes-electriques-maison-individuelle-schema-installation-electrique-circuit.jpg