Section 125.27 - Miscellaneous Requirements(1)Supporting Structures.(a)Warning Signs and Marking. 1. Structures. If poles and structures are of any material except wood, they shall be plainly and conspicuously marked "Dangerous. Keep Away" in compliance with M.G.L. c. 166, § 34. All structures supporting wires over streets or buildings or structures on private property shall be plainly marked with the name or initials of the owner of the structure in compliance with M.G.L. c. 166, §§ 31 and 36.
All structures should be marked or numbered so as to facilitate identification by employees authorized to work thereon.
Date of installation of such structures should be recorded by the owner.
2. Bridges. Structures attached to bridges for the purpose of supporting conductors shall be plainly marked with the name or initials of the utility responsible for the attachment and in addition by a warning sign entitled "Dangerous. Keep Away," or its equivalent.3. Equipment. All transmission line switching equipment should be marked or numbered so as to facilitate identification by employees authorized to work thereon.(b)Steps. Steps closer than 8 feet from the ground or other readily accessible places shall not be permanently placed on structures.(c)Structure Guards. Where structures are subject to damage because of their location in public parking lots, warehousing, or other are as, the structures should be adequately protected with guards.(2)Guying. (a)Point of Attachment. The guys should be attached to the structure as near as practicable to the center of the conductor load to be sustained but the insulation afforded by wood crossarms and poles shall not be reduced any more than is necessary.(b)Guy Fastenings. At attachments, stranded guys should be protected by thimbles or other suitable means.(c)Guy Guards. The ground end of all guys attached to ground anchors exposed to traffic shall be provided with a substantial and conspicuous guard not less than eight feet long.(d)Anchor Rods. Anchor rods should be installed so as to be in line with the pull of the attached guy when under load. The anchor rods shall have an ultimate strength in the eye and shank equal to or greater than that required of the guy.(3)Insulators in Guys Attached to Structures. (a)Material. Guy insulators where used shall be made of fiberglass, wood or other material of suitable mechanical and electrical properties.(b)Electrical Properties. Guy insulators shall have a dry flash-over voltage at least double the normal phase to phase voltage and a wet flash-over voltage at least as high as the normal phase to phase voltage.(c)Mechanical Strength. Guy insulators shall have a mechanical strength at least equal to that required of the guys in which they are installed.(4)Mechanical Protection of Cable Risers. Where within eight feet of the ground, cable risers in unguarded areas shall be protected by a covering which gives suitable mechanical protection. This covering may be omitted from wires used to connect the structure or lightning protection wires to ground.