A first device useful as a support base for utility poles, which integrates an anti-theft security system directed to prevent theft of power supply wires used in underground power distribution systems. The security system includes a dual internal conduit system for housing the wires and at least two head bolts inserted in an individual lateral straight conduit. Similarly, a second device includes a mold having an inverted T-shaped housing for the wires and a head bolt inside the upright conduit section of said inverted T-shaped housing. In both devices, the wires are moved in an angled position and secured by tightening the corresponding bolt.