This is usually between 250 to 500 W for this
type of transmission-line design. The addition of arresters provides low-surge impedance and insures
low-surge voltage at the connection point [4].
At another mill, Weyerhaeuser has installed a
system [5] intended to eliminate lightning strikes
to a 13.8 kV, company-owned open-transmission
line. This system is a controversial subject [5], [6]
and is not known to be used on any GTC 115 kV
transmission lines.