In 1993, TIA approved and published TIA/EIA-606 Administration Standard for the Telecommunications Infrastructure of Commercial Buildings. This standard has received limited market acceptance, possibly for two reasons. First, TIA/EIA-606 provides few concrete requirements.
The categories or labels used to describe the plethora of power quality phenomena that can occur on electrical systems have not changed much in the past decade or two. Measurement methods and acceptable limits for most systems have changed.