The course deals with conduit of technical equipment in general, especially underground networks. The general part includes basic concepts, network division, category and history. Students will be introduced with the standards and regulations of the topic, space arrangement of conduit of technical equipment. It will also be discussed designing of pipe networks (water supply, sewerage, heat, steam and gas) and cable lines (electricity system, telecommunication and data networks). From the aspects of building the student will be acquainted with pipes materials and methods of construction and rehabilitation of networks, especially in their underground storage.