: The hot wire is typically the smooth wire (black), while the neutral wire has ridges or grooves.
These "hot line" phones are designed to automatically dial a pre-programmed number as soon as the handset is lifted. They are commonly used for emergency help, customer service kiosks, or security desks. 2 : Hot Line
Dealing with for a 240V or split-phase circuit? AI responses may include mistakes. Learn more APPLICATION - Viking Electronics : The hot wire is typically the smooth