What is it called IR testing?

[Petej999]

MEG OHM. MEGA OHM or MEGGER OHM?

 

[Petej999]

MEG OHM. MEGA OHM or MEGGER OHM?

Seen some Tutors call it Megger ohms, how can't that be righ when Megger is a Trade name? me I call it Meg ohms whats your take ?

 

[DPG]

The SI prefix is 'mega' and that is the correct one to use.

Tutors should certainly not be using 'Megger' !!

 

[Petej999]

The SI prefix is 'mega' and that is the correct one to use.

Tutors should certainly not be using 'Megger' !!

I know terrible isn't it? mega or meg for me

 

[Petej999]

I know terrible isn't it? mega or meg for me

Thanks for the reply

 

[Petej999]

The SI prefix is 'mega' and that is the correct one to use.

Tutors should certainly not be using 'Megger' !!

You would think they would know better before bashing out the wrong info. Megger ohms indeed.

 

[Avo Mk8]

MEG OHM. MEGA OHM or MEGGER OHM?

I was taught "Megohm" (all one word) and that's what's in the dictionary ?
But in everyday use just "Meg", as in Family Guy ?

 

[SJD]

The SI prefix M is Mega.

In combining the prefix with the unit name, the prefixes' final vowel is retained, except in the case of “hectare”. The American National Standard* also calls for the spellings “megohm” and “kilohm”, but the spelling “megaohm” is often encountered.

 

[Avo Mk8]

Deleted d d d d d d d d d d d d d d d d d d d d d d dd

 

[Julie.]

Megaohm or Mega Ohm or MΩ

It should never be truncated in spite of what the US does.

Things end up with different meanings, for example
1 millimetre is 1mm or 0.039"
1 mil is 0.001" or 0.0254mm

So giving a dimension as 156mil - is that really what you mean? Something around 5/32"

Annoys the hell out of me as insulation (dielectric breakdown) is measured in both V/mm and V/mil and people will say air is 3kV per mil - no it isn't you muppet air is circ 3kV per mm or 100V per mill (it isn't a straight conversion!)

 

[7029 dave]

MΩ MΩ ?...............................................

 

[Dustydazzler]

MegOhm Meter

Not

Megaohm Meter

or

Meggerohmmeter

 

[littlespark]

It’s an insulation resistance meter, combined with a continuity meter, and nowadays performs earth loop impedance and rcd operational tests.

Some might call it a multi function tester….

Others still call it a “meggar”


As for the measurements taken… it’s Megaohm

Like megawatt, megaton, etc

 

[7029 dave]

I still got my analogue IR tester used the old girl the other day, faulting RFC

 

[Dustydazzler]

You can still pick up some lovely old meters on Ebay