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SPT

  • Edward WorrellEdward Worrell
  • February 3, 2023
  • Christmas Lighting Glossary

SPT stands for Stranded, Parallel, Thermoplastic and refers to the amount of insulation on most flat wire. A number that follows this abbreviation indicates the thickness of the insulation. For example, STP-1 is of thinner insulation than SPT-2.

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Edward Worrell
Edward Worrell
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