UPS SYSTEM EMC STANDARD IN THE US

[duki]

Does anyone know which NEMA, ANSI, IEEE or UL standard applies to UPS system design that covers EMC requirements in the US. In the IEC there is 62040-2, but does the US have one?

 

[JLSeagull]

IEEE C62.48 covers the "Interactions Between Power System Disturbances and Surge-Protective Devices".

Several Process Industry Practices address UPS systems for ferroresonant, PWM UPS.

UL 1778 covers safety UPS.

 

[Abuwassan]

You can check one of these Standars:
1-American National Standards Association / Institute for Electrical and Electronics Engineers (ANSI/IEEE:
ANSI/IEEE C62.41 Surge Voltages in Low-Voltage AC Power Circuit
IEEE 450 Maintenance, Testing, and Replacement of Large Load Storage Batteries for Generating Stations
and Substations
2-National Electrical Manufacturer’s Association (NEMA):
NEMA General Purpose Enclosures, Indoor
3-National Fire Protection Association (NFPA):
NFPA 70 National Electrical Code
4-Underwriters’ Laboratories (UL):
UL 1778 Uninterruptible Power Supply Equipment