Whilst Electric Pillars were used to defend Strongholds, for larger bases the Federation used proper connecting electric fences.
The electric fences were used to defend the Federal Military's bases such as the military assistance base on Roku San. They are placed completely around the perimeters of bases and each segment is physically connected, unlike the pillars. The current created through them was constant and very powerful, capable of killing any Arachnid that came into contact with it.
The fences were effective against smaller Arachnids which relied on melee weapons, however were still vulnerable to Plasma strikes. On Roku San artillery was used to keep such larger Arachnids away from these fences.
History[]
On Roku San during the Second Bug War the base's main electric systems went down causing the perimeter fences to lose power. In this situation Arachnid Warrior Bugs were easily capable of ripping large segments of the fences apart in short amounts of time.
During the Battle of Valaka these fences were used for base defence by Deep Space Vanguard forces.