Source google image: https://une-lingerie.com/wp-content/uploads/2018/11/branchement-vmc-2-vitesses-schema-beau-norme-installation-electrique-maison-nouveau-schema-du-coffret-of-branchement-vmc-2-vitesses-schema.jpg
Norme électrique vmc
Source google image: https://une-lingerie.com/wp-content/uploads/2018/11/branchement-vmc-2-vitesses-schema-beau-norme-installation-electrique-maison-nouveau-schema-du-coffret-of-branchement-vmc-2-vitesses-schema.jpg