RF Lighting said:I know of an overhead TN-S round our way. Will get a pic next time I'm up there
They are a rarity!
I know of a couple farms that still are, must most have been changed to overhead split-cons.
EARTH
- Thread starter tashie
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They are a rarity!
I know of a couple farms that still are, must most have been changed to overhead split-cons.
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RF Lighting said:I know of an overhead TN-S round our way. Will get a pic next time I'm up there
I'm dissapointed that you don't already have a pic of this
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Does anybody know any way of posting a PP file here?
I have a presentation on this very topic, with pictures supplied by, amongst others, the very kind RF Lighting.
I have a presentation on this very topic, with pictures supplied by, amongst others, the very kind RF Lighting.
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You have webspace, upload it to your site and post the link!!
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Thanks, but it was easier to do it this way. I have all sorts of access codes on my website & have long forgotten them...
I have done it another (very laborious) way!!
Here is my presentation. Please feel free to use this as reference, but do not abuse this & copy it for your own or other's use in any way, as it is copyright.
The presentation is missing a photo of TN-S with earth from the sheath.
I must point out that the images are used with the permission of, amongst others, RF Lighting. Thank you.
I have done it another (very laborious) way!!
Here is my presentation. Please feel free to use this as reference, but do not abuse this & copy it for your own or other's use in any way, as it is copyright.
The presentation is missing a photo of TN-S with earth from the sheath.
I must point out that the images are used with the permission of, amongst others, RF Lighting. Thank you.
Lectrician said:RF Lighting said:I know of an overhead TN-S round our way. Will get a pic next time I'm up there
They are a rarity!
I know of a couple farms that still are, must most have been changed to overhead split-cons.[/quot
There are quite a good few overhead TN-S earths using a seperate conductor as earth in the area where I live.
CAWORK said:Lectrician said:RF Lighting said:I know of an overhead TN-S round our way. Will get a pic next time I'm up there
They are a rarity!
I know of a couple farms that still are, must most have been changed to overhead split-cons.[/quot
There are quite a good few overhead TN-S earths using a seperate conductor as earth in the area where I live.
Still a rarety........sort your quote out
you can usually tell if a supply is tns or tncs (if it's not visually obvious)
do a Ze (L-E)
do a PSC (short circuit current L-N)
if readings are very similar TNC-S
If there is a decent difference TN-S
do a Ze (L-E)
do a PSC (short circuit current L-N)
if readings are very similar TNC-S
If there is a decent difference TN-S
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