voltage

[ajhill]

What is considered high voltage

 

[ibew441dc]

Good Question!!

Good Question!!

What is considered high voltage

I use to wonder that myself.....that answer can vary, depending on who you are talking to. My opinion is....

Low Voltage= Less than 120 Volts Nominal
Medium Voltage=600 Volts or less, but greater than 120 Volts
High Voltage= Greater than 600 Volts

By the way, WELCOME TO THE FORUM!!!!:smile:

 

[infinity]

It really depends on who you're asking. The NEC and others have different standards to separate low, medium and high voltage. Take a look here for more confusion:

http://forums.mikeholt.com/showthread.php?t=104643

 

[ohmhead]

What is considered high voltage

Well just a thought low/ voltage is below 600volts med/ voltage to me is above 600 volts like 4160v up to 27kv now high /voltage to me is like 69 kv 345kv or higher But thats just my thinking take care lets here it from the experts ?

 

[charlie]

I believe this is from the IEE standards:

LV = Voltage levels that are less than or equal to 1 kV

MV = Voltage levels that are greater than 1 kV, but less than or equal to 69 kV

HV = Voltage levels that are greater than 69 kV, but less than or equal to 230 kV

EHV = Voltage levels that are greater than 230 kV, but less than or equal to 800 kV

UHV = Voltage levels that are greater than 800 kV

 

[Volta]

Yup, I'm with Charlie.

 

[weressl]

I believe this is from the IEE standards:

LV = Voltage levels that are less than or equal to 1 kV

MV = Voltage levels that are greater than 1 kV, but less than or equal to 69 kV

HV = Voltage levels that are greater than 69 kV, but less than or equal to 230 kV

EHV = Voltage levels that are greater than 230 kV, but less than or equal to 800 kV

UHV = Voltage levels that are greater than 800 kV

It is IEEE though, but more importantly it is adopted as an ANSI Standard and as such is the nationally recognized definition.

 

[charlie]

It is IEEE though, but more importantly it is adopted as an ANSI Standard and as such is the nationally recognized definition.

OOOOOOPS!

Sorry, I left an E off and reversed the order, I don't believe EEI has any standards. There is a BIG difference between those two organizations. :smile:

EEI - Edison Electric Institute
IEEE - Institute of Electrical and Electronics Engineers