[CITATION][C] Reference technical rules for the connection of active and passive users to the LV electrical utilities
CE Italiano - CEI 0-21, 2012
[CITATION][C] CEI 0-21,”
CEI Standard, CEI CEI - Reference technical rules for the connection of active …, 2011
[CITATION][C] Standard-CEI 0-21, Reference technical rules for the connection of active and passive users to the LV electrical Utilities
CEICE Italiano - 2016 - April