OP
MDJ
Yup where's the bunker haha
Discuss Max Ze for TT system in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
I'll put my tin hat on and take cover
What was it you said:
"I got a bite! A big one! C'mon lads, get the landing net out ready, this one's gonna be a wriggler!"
Sorry that I'm not interested in winning popularity contests and taking sides in petty arguements.
I thanked everyone on the thread especially those 'wirepuller' & 'Engineer 54' whose advice I followed and which resolved my situation and in fact got me extra work.
However if this leaves you feeling a little under appreciated:
My big boy pants are in the wash so I'm too afraid of a bitch slapping!You can answer If you want.:cheesy:
Sorry to be thick, but how does an upstream s,type provide more protection, unless you nail the tails ?
Regards
Sorry if I've upset the apple cart gents.
I just find it strange that my singling out of the two individuals whose advice I followed was questioned.
It appears that I have affronted one of the inner circle and the wagons are circling so before this gets silly.
Once again thanks for the lessons and the input.
Best regards to you all.
I just find it strange that my singling out of the two individuals whose advice I followed was questioned.
It will provide backup in the unlikely...(although some would argue likely)...event of the 30ma RCD failing to trip on an earth fault.After all on a 'normal' uk TT system with an Ra exceeding that which will operate an OCPD you are completely reliant on a single RCD for earth fault protection.
Sorry if I've upset the apple cart gents.
I just find it strange that my singling out of the two individuals whose advice I followed was questioned.
Indeed as my original post clarified "TT virgin" my knowledge on TT is limited and has now been enlightened somewhat.
The end result is I learned and won extra business. Both of which I am thankful for.
It appears that I have affronted one of the inner circle and the wagons are circling so before this gets silly.
Once again thanks for the lessons and the input.
Best regards to you all.
Don't anyone say I didn't advocate the wearing of a safety helmet. Run for the bunkers the B52's will start bombing soon...To fill you in a little there have been some pretty hot debates on this historically. I am firmly in the camp of either get a STABLE TN value of Ra that will operate an OCPD...ie sub 1 ohm.....Or dont,in which case it matters not whether it is 20 ohms or 200 ohms as you are totally reliant on an RCD for earth fault protection,and said RCD will trip just the same at 20 ohms or 200 ohms.I'm also of the opinion that where such Ra values are the case the much hyped STABILITY is overated as we know that our 30ma RCD will be good up to 1667 ohms,which means a sub-200 ohms Ra will have to be UNSTABLE to the tune of 1447 ohms before we need to be concerned. Of couse those values would be less if we had a 100ma RCD as well,but you get my drift?
I bet E54 is loving this lol
You can have whatever your heart desiresCan you get 30mA time delayed RCDs?:devilish:
sadMy big boy pants are in the wash so I'm too afraid of a bitch slapping!
Reply to Max Ze for TT system in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
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