This product is fit for AC rated voltage 450/750V and below of domestic electrical appliances. Of instruments. Of various meters and motorizes lighting installations. 1) If finished insulation core and finished insulation wire is pot into warm water 20±5°C for hour, they should be able to experience the AC testing. 2) Wire has excellent electric insulation property. Non-inflammability. So it is safety and convenience in using the produce name. The model and the voltage should be clearly printed on the surface of the finished power line of the insulation and sheath delivery requirement.