Many types of communications devices contain secondary surge protection devices either integral to their designs or placed near the protected equipment. External primary surge protection devices, typically placed where the outside plant enters a structure, are normally used to prevent excessive currents and voltages from entering the structure or equipment, where they could cause injury or damage. This standard addresses the proper electrical coordination of primary and secondary surge protection devices. Formerly known as T1.338-2004.
| ANSI : | ANSI Approved |
| Number of Pages : | 47 |
| Published : | 06/30/2004 |
![ATIS 0600338.2010 [pre-pub]](http://images.techstreet.com/coverart/defaults/1724986/std.jpg)
