Is it safe to use copper wire instead of electric leakage protector?

Answer:

The number of household electrical appliances and electrical equipment (such as power supply) most of the metal wire used in tubular fuse is made of copper wire. On the contrary, lead and antimony in the circuit of the fuse if the normal operating current selection circuit of the maximum rated current than the much larger, but it is not safe. Based on the above, I think this sentence seems to be so: the conductor in the lighting circuit do not rated working current and maximum fuse current in the circuit is much larger than to replace the fuse, otherwise will not be able to play the role of insurance,

If the rated fuse current wire is too large, it will not fuse; if the rated fuse current wire is too small, it will cause frequent blackouts. Secondly, from the practical point of view, to fuse with copper wire in the circuit is common.

First of all, from the different principle, a fuse can play the role of insurance in the circuit, is not made in what material, but depends on the fuse current is determined by the material and its thickness. The circuit (including lighting circuit) in copper wire can replace the fuse, the key lies in the copper wire whether or not to meet the current requirements. If the fuse rated fuse current wire is equal to or slightly larger than the normal operating current maximum circuit, it can replace the fuse wire;