I am trying to replicate what is logged in this blog, replacing the switch on the lower assembled part of the vacuum. The switch connects on both ends to a 22awg,105Celsisus,600v, red wire. I'm concerned with possible issues that may arise from theses wires, such as overheating, shorting, or causing an electrical fire. The broken switch had both ends heat shrink tubed, but could I wrap electrical tape around both ends instead? Or just go ahead and shrink tube wrap them?