UNE 21-720-1989
Devices for low-voltage short-circuit connections and earth connections

Standard No.

UNE 21-720-1989

Release Date

1989

Published By

ES-AENOR

Scope

The purpose of this standard is to establish the characteristics that must be met and the tests to which mobile devices must respond for short-circuiting and optionally grounding for work on low-voltage electrical installations.