also: らせん
noun, noun which may take the genitive case particle 'no'
bare wire; uninsulated electrical wire
Technical term for electrical wire without insulation. Used in engineering and electrical contexts.
裸線に触れると感電する危険がある。
Touching a bare wire poses a risk of electric shock.
この配線には裸線が使われている。
Bare wire is used in this wiring.
Alternate reading; rarely used and easily confused with 螺旋 (spiral).
Compound of 裸 (はだか, 'naked') and 線 (せん, 'wire'). The reading らせん is a rare alternative, possibly influenced by on'yomi, but its origin is uncertain.