(Amended by Ordinance No. 184957, effective November 25, 2011.) Any person owning or operating underground wires, conduits, or subways in compliance with this Chapter may connect the same with the side lines of the street, if approved by the Director of the Bureau of Transportation, and to that end, may use the space under the streets and sidewalks as may be necessary or convenient, and may also have access to all area‑ways under sidewalks, and may place and maintain such wires, cables and appliances in proper conduits in and through such area‑ways or spaces. If wires or cables are run up the sides or in front of any building, such wires or cables shall be placed in proper enclosures as are required by the relevant state and local regulations governing the placement of such wires or cables to prevent danger to life or property. If there are no relevant regulations the Director of the Bureau of Transportation may establish such requirements as he or she determines necessary to prevent danger to life or property. No wire, cable or the supports therefor shall cross any window or opening in any building.