This wire approximates the purely natural path of a wire strung amongst two factors, a catenary curve, Hence the use of "catenary" to explain this wire or occasionally The entire program. This wire is connected on the Make contact with wire at normal intervals by vertical wires generally known as "droppers" or "drop wires". It's supported regularly

The two wires never contact (Even though the bow collector or pantograph is briefly in contact with each wires). In standard services, The 2 sections are electrically related; depending upon the process this could be an isolator, fixed Speak to or perhaps a Booster Transformer. The isolator makes it possible for The existing for the section to get