bdn2004
Electrical
- Jan 27, 2007
- 799
We have several hundred feet of 600V insulated aluminum cable installed on an overhead pole line feeding a pad mounted 480V-120/240V dry type transformer. There is a static line on the top of the pole line. It has been suggested to put station class arrestors at the last pole down to the transformer because the dry type transformer only has a 10kV BIL level. Why? And how do you determine the right arrestor?