Unless temporary guys or braces are attached, the following poles shall be tested in accordance with paragraph (n)(3) of this section and determined to be safe before employees are permitted to climb them:
Dead-end poles, except properly braced or guyed "Y" or "T" cable junction poles,
Poles at which there is a downward change in grade and which are not guyed or braced corner poles or cable junction poles,
Poles which support only telephone drop wire, and
Poles which carry less than ten communication line wires. On joint use poles, one power line wire shall be considered as two communication wires for purposes of this paragraph (n)(2)(v).
Straight line poles which are not storm guyed and where adjacent span lengths exceed 165 feet,