Underwriter's knot

Underwriter's knot
NamesUnderwriter's knot, Two-strand wall knot
CategoryStopper
Relatedwall knot, crown knot
Typical useelectrical
CaveatNote that the colors in this depiction do not match current practises in either the UK or the US, nor is this cable in keeping with current safety standards for electrical installations
ABoK#237, #775

The underwriter's knot is used in electrical wiring as strain relief to prevent a cable from being pulled from electrical terminals when the cable is yanked.