The invention relates to a kit of parts attachable to a substrate, said kit of parts having an elongated, electric conductive bracket extending along an axis and attachable to the substrate in an electrically grounded connection thereto. The kit of part further includes a modular housing having a base mountable onto the bracket, a cover mounted onto the base, the cover and the base enclosing a chamber, and a plate-shaped, axially extending, elongated electric conductive carrier provided inside the chamber and in electrically grounded connection to the bracket. The invention further relates to a modular housing suitable for use in the kit of parts, a street pole having said kit of parts, and a method for mounting a modular housing.