THHN Thermoplastic High Heat-resistant Nylon-coated wire is a single conductor wire with PVC insulation and a nylon jacket.He rite tonu te ahua o te waea wera wera me te wai-atete THWN ki te THHN, a he maha nga wa e whakamahia ana enei mea e rua.Ko te THWN he waea kaikawe kotahi me te whakamaarama PVC me te koti nylon.Ko te waea THWN-2 he waea THWN me etahi atu whakamarumaru wera ka taea te whakamahi i nga waahi wera tino nui (tae atu ki te 90°C, 194°F).