The answer to 'electrical wiring hot to touch' is that this is a serious issue that requires immediate attention. Wiring that is hot to the touch is a sign of an electrical problem that could lead to a fire hazard or electric shock. Common causes include overloaded circuits, loose connections, or damaged wiring.
If you feel any part of your electrical system is hot to the touch, shut off power to that circuit immediately and do not attempt to use it until the problem is identified and resolved. This is not a DIY task - you should always call a licensed electrician to diagnose and repair hot electrical wiring. Trying to fix it yourself could be extremely dangerous.