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UNE-EN 1127-2:2014 UNE
Status: Vigente/ 2021-01-01
Explosive atmospheres - Explosion prevention and protection - Part 2: Basic concepts and methodology for mining (Endorsed by AENOR in April of 2015.)
UNE 22547-1:2007 UNE
Status: Anulada/ 2018-02-01
Electrical apparatus for mines. Apparatus for control of the insulation of a.c. power systems by injection of d.c. Part 1: Systems with a rated voltage up to 1 100 V.
UNE-EN 1127-2:2003+A1:2008 UNE
Status: Anulada/ 2015-04-01
Explosive atmospheres - Explosion prevention and protection - Part 2: Basic concepts and methodology for mining
