( There ( ( ( ( was also ) ( no evidence ) ) ( that ( ( ( the ( electrical tape ) ) ( covering ( the wires ) ) ) ( ( was ( not ( of ( an ( insulation rating ) ) ) ) ) ( equivalent ( to ( that ( of ( the conductors ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBD was) (ADVP (RB also)) (NP (DT no) (NN evidence)) (SBAR (IN that) (S (NP (NP (DT the) (JJ electrical) (NN tape)) (VP (VBG covering) (NP (DT the) (NNS wires)))) (VP (VBD was) (ADVP (RB not) (PP (IN of) (NP (DT an) (NN insulation) (NN rating)))) (ADJP (JJ equivalent) (PP (TO to) (NP (NP (DT that)) (PP (IN of) (NP (DT the) (NNS conductors)))))))))) (. .)))
There was also no evidence that the electrical tape covering the wires was not of an insulation rating equivalent to that of the conductors.
(ROOT (S (NP (JJ Electrical) (NNS wires)) (VP (VBP are) (ADVP (RB usually)) (VP (VBN covered) (PP (IN with) (NP (NN plastic) (CC or) (NN rubber))) (S (VP (TO to) (VP (VB insulate) (NP (DT the) (JJ electrical) (NN wire))))))) (. .)))
Electrical wires are usually covered with plastic or rubber to insulate the electrical wire.