on the second photo i did notice on main lugs above the socket and i did see the diffrent conductor on left hot line lug look like copper wire is there and the rest is alum wire and this socket this is delta service becaue i can tell by hot conductor with red wild leg on right side of it and also the netrual wire it is copper also so this is very instering set up

Merci, Marc

Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)