A type of relatively cheap two conductor wire usually found in household floor lamps, table lamps, desk lamps, thus also known as "lamp cord". It is not exceptionally durable nor meant for heavy use. Available in 12-18 AWG, and insulation colors of white, brown, black, ivory, gold, and clear.
It is type SPT and is not allowed in most theatre applications.
Upon close inspection the two conductors are different--one has ribbed insulation, one smooth. The ribbed is the neutral; and the smooth the hot.
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