
IEEE Standard for Control Switchboards--Amendment 1: Control and Secondary Circuits and Devices, and All Wiring
NORMA vydána dne 1.7.2020
Designation standards: IEEE C37.21a-2020
Note: NEPLATNÁ
Publication date standards: 1.7.2020
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: International technical standard
Kategorie: Technické normy IEEE