Crosby residents say City Power official showed them how to restore power by themselves

[Cosmik Debris]

For South Africa
LV is anything up to 1000V
MV = 1000V to 44kV
HV = 44kV to 220kV
Source: MHSC Electrical regulations - Aspasa

Even those 11kV power lines on Eskom poles is regarded as medium voltage.

North America:
MV = 4kV to 35kV

For Europe:
MV = 6kV to 33kV

Exactly. It's location and usage dependent. Now give the international definition? In the automotive and some other industries, HV has its own definition which differs from the local definition.

 

[Defonotaltaccount]

Exactly. It's location and usage dependent. Now give the international definition? In the automotive and some other industries, HV has its own definition which differs from the local definition.

What voltage were you working with that required all that ppe ?
Simple.

 

[Paul_S]

Exactly. It's location and usage dependent. Now give the international definition? In the automotive and some other industries, HV has its own definition which differs from the local definition.

We're talking about mains electrical supply and distribution not microcontollers, CMOS, TTL circuits. The automotive industry is a totally different industry so what has that got to do with anything?

There is no international standard but in terms of electrical generation and distribution LV is definitely up to a few kV and then MV up to about the 30kV to 60kV range.

 

[Dave]

220 volt is between phaze and neutral
380v is between 2 phazes

*phase

Not even the yanks try and mess the word up with a Z.

 

[Dave]

Simple.

Maybe simple, but I think you forgot to answer another simple question.

Is 5000 volts classed as high voltage in RSA ?

So what is it considered in the country you're in?

Which country is that ?

You don't know where you are?

 

[Defonotaltaccount]

Maybe simple, but I think you forgot to answer another simple question.

You said Russia, why you press ?

 

[Dave]

You said Russia, why you press ?

I said Russia?

I don't think you're in Russia, you don't seem drunk all the time.

 

[Cosmik Debris]

We're talking about mains electrical supply and distribution not microcontollers, CMOS, TTL circuits. The automotive industry is a totally different industry so what has that got to do with anything?

Because those industries have different definitions of HV.

There is no international standard but in terms of electrical generation and distribution LV is definitely up to a few kV and then MV up to about the 30kV to 60kV range.

Oh yes, there is.

 

[Cosmik Debris]

I said Russia?

I don't think you're in Russia, you don't seem drunk all the time.

I beg to differ.

 

[Dave]

I beg to differ.

Writing like a stroke victim is different to drunk posting.

 

[Cosmik Debris]

Writing like a stroke victim is different to drunk posting.

My apologies. How insensitive of me.

 

[Paul_S]

Because those industries have different definitions of HV.


Oh yes, there is.

This thread is about City Power - not an automotive topic. I'm still not seeing any connection.

 

[Cosmik Debris]

This thread is about City Power - not an automotive topic. I'm still not seeing any connection.

High voltage is the connection. Excuse the pun. Sorry you couldn't see that. And it wasn't me that caused the thread drift. Address the culprit.

 

[Oldfut]

I'm not getting into MV, HV etc but I worked on a small power project with an 11kV sub station that was meticulously maintained. Well, after one maintenance interval, one bank of switchgear refused to close on re-energisation. Us non-electrical types thought someone would just go in there and "fix it". Not that simple, a specially trained guy had to come out, put on a fancy suit and special tools then go in while everyone else stood well back. It was fixed without incident.

My point; there are obviously big dangers with the higher voltages, going to fiddle without knowing what you are doing is either very brave or very stupid.