CPC Subgroup
H02G 3/22 Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
Full Title
Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles (installations of bus-bars H02G5/00; overhead installations H02G7/00; installations in or on the ground H02G9/00) > Installations of cables or lines through walls, floors or ceilings, e.g. into buildings