SWER avoids lines clashing in wind, a substantial fire-safety feature, but a problem surfaced in the official investigation into the Black Saturday bushfires in Victoria, Australia. These demonstrated that a broken SWER conductor can short to ground across a resistance similar to the circuit's normal load; in that particular case, a tree. This can cause large currents without a ground-fault indication. This can present a danger in fire-prone areas where a conductor may snap and current may arc through trees or dry grass.