e/Strain insulator

Information
has gloss	eng: A strain insulator is an insulator that provides both large electrical insulation and a large load-bearing capacity. Strain insulators were first used in telegraph systems to isolate the signal wire from ground while still supporting the wire. Strain insulators are used to support radio antennas and overhead power lines.
lexicalization	eng: strain insulator
instance of	c/Power cables

Media
media:img	Pyrex insulator.jpg
media:img	Strain insulators.jpg