Annex to the Order of the Minister of Development, Public Works and Administration, of the Minister of Research, Innovation and Digitalization and of the President of the National Authority for Administration and Regulation in Communications No. 2,371/21,361/3,765/2022 for the approval of the technical regulation “Telecommunications ducts (CTc). Optical fiber. Design, execution, use, maintenance and verification, RTC 5-2022”