Historical
ANSI T1.331-1999 (R2004)
Description of Above-Baseline Physical Threats to Telecommunications Links
This standard describes physical threats to outside plant copper-conductor and optical telecommunications distribution links. These physical threats exceed the levels of physical threat considered in the baseline standard, and are not protected against as a generally accepted practice thoughout the country. The standard describes threats such as vibration, liquid penetration in cables, radiation, temperature wind and ice construction threats, corrosion, lightning and exposure to ac power, and loss of telecommunications power.
Alliance For Telecommunications Industry Solutions [atis]