Pruner Rope Insulator attaches to pruner rope to break electrical current if rope contacts energized lines above insulator. They are individually tested for dielectric strength at 100kV per foot for 5 minutes per ASTEM F711 as referenced in OSHA paragraph 1910.269(j)(1)(i). Splice into pruner rope according to your company procedures. Reference ANSI Z133 for guidelines on using equipment near energized conductors.