Blue and white wires contain insulated strands and red wire has a bundle of non-insulated strands. How are the two types of wires (insulated and non-insulated strands) used in homes (i.e. what are they used for?).
that query is slightly large. It quite relies upon on what you're utilising the cord for. even if that is carrying electric powered contemporary, the insulation will prevent unintentional contact with the present, which could effect in damage to someone or unintentional contact with floor, that could want to effect in failure of the circuit. if you're doing something else, like making a bucket deal with out of cord or utilising it to tie something on your vehicle, the insulation would grant you with a better acceptable grip, which may be better secure in its own correct.
The only wire I know of that has individually insulated strands, is Litz wire, used in radio frequency applications. If you mean the wire strands include such as a cotton strand, it is probably the core around which the other strands are spun.
The bare wires in house power wiring is used as the grounding wire. I don't think you mean stranded wire. The wiring in your walls that goes to outlets and lights is solid wire. If you are just calling them a strand of wire, that is not a good idea because it is too easy to confuse with stranded, especially if you are not careful with proper grammar and spelling. The other insulated wires are used as hot and neutral. In most homes, white is the return/neutral line and the other colors (except green) are used for different phase of hot wires. If you have green insulated wires, they are used for ground.
