Picture of the week!™

[RF Lighting]

Well folks, it's that time again!

This was taken in a commercial premises during a PIR.

Can anyone spot the problem?

I removed the covers. That is not it

 

[Adam_151]

An armoured with no overcurrent protection?

 

[RF Lighting]

Gold star for adam

 

[securespark]

Took me ages to find that, because I didn't scroll over to the r/h/s of the image...D'oh!

 

[Steve]

Took me ages to find that, because I didn't scroll over to the r/h/s of the image...D'oh!

You must have a REALLY small monitor

 

[securespark]

14"...

 

[Steve]

14"...

exactly.

 

[aptsys]

Nice cable tie on the cut out too

 

[Lectrician]

Is there an earth to that metal enclosure feeding the SWA? Or is that a TT earthing arrangement from there onwards? If so, hope precautions have been taken against tail damage where the tails enter that metal enclosure!

 

[ceraunic_level]

studying at the moment to become an electrician and I do find these pictures of the week very interesting.

On this one the earth block appears to have a phase cable attached??

 

[plugwash]

Is there an earth to that metal enclosure feeding the SWA?

Looks to me like there is an earth wrapping arround the bottom of the cupboard and then clipped along the SWA.

 

[GaryMo]

studying at the moment to become an electrician and I do find these pictures of the week very interesting.

On this one the earth block appears to have a phase cable attached??

That looks like the main earthing conductor from the leaded sheath of the incoming supply cable.

 

[Lectrician]

Is there an earth to that metal enclosure feeding the SWA?

Looks to me like there is an earth wrapping arround the bottom of the cupboard and then clipped along the SWA.

Yea, but that could either be a supplementary earth, or going out to an earth rod - There is no connection from that enclosure to the MET. Hence my question.

 

[equitum]

Is there an earth to that metal enclosure feeding the SWA?

Looks to me like there is an earth wrapping arround the bottom of the cupboard and then clipped along the SWA.

Yea, but that could either be a supplementary earth, or going out to an earth rod - There is no connection from that enclosure to the MET. Hence my question.

Can't resist this.... Sureley that g/y clipped to the armour IS the connection to the MET (the earth block). Its the MET because it connects the Earthing Conductor to the means of earthing - the sheath of the incoming supply, and also, apparently, the bonding conductors.

 

[RF Lighting]

The G/Y entering the bottom of the RCD enclosure is a 4.0mm² earth.

It goes from the MET to the RCD enclosure, where it is connected to the enclosure and the SWA.


There is a red cable connected into the MET. It is the main earthing conductor, which is a ~10.0mm² VIR cable sweated onto the incommer cable.