we are having a problem when they pug in a comm. vac. the computers need to boot like they have lost power the computers are on seperate cir from the recepts they are using for the vac. neutrals are not shared on the same cir in question either but they are multiwire cir . they also are share the same panelboard. the ups on the computer doesnt seem to sense the problem which makes us belive there is a noise issue . we are thinking iso xfrmr but would like other sugest. thanks kevin.
