Just as Meebo is mentioning the power connections, AD-hoc spots a transformer box about 50m further down the fence. It's kind of in the open, but no one seems to be paying it much attention.
OOC:
AD-hoc - If you touch the wires (hands or possibly tools), the wire gets an easy attack on you with a base damage of 10. Successfully cutting or ripping at the wires would create a chance that the loose ends connect other wires and make sparks, etc. :) Depends on if your going for Stealth or Diversion.
OOC:
The red dots are the guards, the blue box is the transformer. You guys are near the bottom of the map, having just circled around to the gate side.