Farmer want the lights changing in his milking parlour for a dairy inspection.
Fabric / rubber insulation on the lighting circuit, insulation and is down to 0.95M. Protected by a rewirable fuse. Installed in pipe with no cpc. All the outbuildings are TT.
My question is do the regs now stipulate that you must run a cpc to each point. or can you rely on the conduit??? (subject to test)
I ran in a 6mm CPC (all i had in the van) to each light from the MET to be on the safe side (zs 35.9 ohms)
I will recommend a PIR and note on the invoice areas of concern
The farmer informs me he is giving up his dairy herd at the end of the year, so he is unlikley to to spend much money.
Not certain about this but i think that steel conduit is not recommended for dairy because of corrosion and that they prefer plastic. To my mind the steel is a lot stronger and makes more sense but that 's what i remember.
edit : just had a quick look and yes there are restrictions on conduit use - must be class 2 for internal use and class 4 for external, unfortunately doesn't explain it further just refers you to BS-EN 61386-21.
On reflection stainless steel conduit rings some sort of bell as well in my head, but i believe that costs a fortune!!
Forgot to add initially I did a high current ZS test and the conduit was arcing like mad due to corrosion
at the joints, hence why I added the 6mm's (i know its big but its all i had in the van and clearly asthetics are not the no 1 priority)
now that is out of the history books - i reckon you could be right with your 50 year estimate!
You probs know already but 705.513.2 also says that all equipment in agricultural premises needs to be at least IP44 rated.
any thing that is accessible by livestock needs be double insulated, so galv conduit isnt recomended unles ur running pvc/pvc in it. we normally use pvc conduit or swa. weve just finished a large milking parlour 5 weeks work for 2... nice job!
The installation is definitly older than the cows.
2 of them later occupied said ark
So my maths make it older than that ark
So its resonable to assume Noah got his wiring done first
any thing that is accessible by livestock needs be double insulated, so galv conduit isnt recomended unles ur running pvc/pvc in it. we normally use pvc conduit or swa. weve just finished a large milking parlour 5 weeks work for 2... nice job!
didn't see that in special locations 705 - i would be interested to know if it is in there or another part of the BRB . The only thing against conduit that i could find was its corrosion resistance.
didn't see that in special locations 705 - i would be interested to know if it is in there or another part of the brb . The only thing against conduit that i could find was its corrosion resistance.
appologies pushrod.... I couldnt see anything in the brb either,i was tought that any thing accessible by livestock had to be double insulated...... Never looked it up though.
appologies pushrod.... I couldnt see anything in the brb either,i was tought that any thing accessible by livestock had to be double insulated...... Never looked it up though.
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc