Busbar okpomọkụ tubing bụ nke polyolefin. Ihe na-agbanwe agbanwe na-eme ka ọ dịrị onye na-arụ ọrụ mfe ịhazi bọs ndị gbajiri agbagọ. Ihe polyolefin dị na gburugburu ebe obibi nwere ike inye nchebe mkpuchi a pụrụ ịdabere na ya site na 10kV ruo 35 kV, na-ezere ohere nke flashovers na kọntaktị mberede. Iji ya na-ekpuchi bọsbars nwere ike ibelata nhazi oghere nke switchgear ma belata ọnụ ahịa ya.