Ключевые слова:
Underground|Cable junctions|Electric power transmission lines|Ducts (building services)|Communication cables|Cleaning|Telephone lines|Proximity|Communication transmission lines|Overhead|Building services|Communication networks|Position|Electric cables|Poles|Fire safety|Marking|Equipment housing facilities|Legislation|Electric conduits|Earthing|Circuits|Electrical safety|Telephone equipment|Interference suppression|Hazards|Certification (approval)|Electric wiring systems|Electric conductors|Dimensions|Electric cable systems|Telegraph equipment|Occupational safety|Safety measures|Maintenance|Data transmission|Trunking|Certificates of conformity|Telecommunication systems|Communication equipment|Voltage|Installation