Recent content by sblakey1

@ every body else!! cheers... im going with the Dual RCD for final circuits, 2pole isolator at supply end, the box is Insulated and will be IP compliant for unused ways. also no doubt the elecsa assessor will have his own take on the TT stuff.. must have asked 15 sparks before coming...

@ mikhailfaradayski the site assessment is just a CU change with full testing, cheers for answers guys very appreciative, did not fancy having to shell out the cost of a time delay RCD (im doing work for free as a favour, plus it helps me out for assessment) its an old terrace house...

please help

defo got my mind thinking..! (1)100ma time delay would not give me the 0.4 disconnection time required by the regulations..! (2)yes discrimination can be achieved with use of an rcbo on non protected circuits. or by incorporating them into the RCD protected side. (3) i was thinkking...

original question answer, the way i look at it then is that if i was to use the board with the 2 unprotected ways then i would use a time delay rcd to give me protection on them but ultimately not at same time level as a standard RCD to ensure that discrimination can be achieved on the non...

personally i would shift the rcd module along to take up the ways.... or remove the ability to fit mcb/rcbo.... by chopping the pin off the busbar. (not professional) chance are i will get a unit with NO unprotected ways.. 30ma for sockets , shower, etc.

i would not be using the 2 unprotected ways due to no need..!!! the circuits i have would all be on RCD for various reasons..! sockets , shower, not 50mm deep etc etc.. covering my ass

unit im using is similar to this http://www.tlc-direct.co.uk/Images/Products/size_3/HGVC712C1.JPG total protection

oh sorry im not using the 2 ways that are not protected!!!!

having just converted from been a Military Spark to civilian one can you guys help me out, TT installations are one that i am always bit edgy about, however im getting my Elecsa site assessment done on this property, "friends house" excellent access to CU etc..!! its only a 5 way so...

yes got a spare way.

thanks for the reply.. personally im happy with the supply cable been on the unprotected side as its concealed away and not accessible plus im not intending to drill holes or rip flooring up any time soon (my G/F would kill me been a new house and all) my only concern is that i didnt want...

ok the supply cable is on 6mm T&E its fed from my CU (approx 4meters in length) in the house on a type b 32a MCB. this then follows underneath the flooring which at the points i have looked at is at the required depth / height from ceiling, the builders also have went the full hog and installed...

if you look carefully you can see where it melted to the other cable at the back.. the cabinet is v.hot inside and it don't help that our cooling system has been trout for last 9 months.... (we leave it ajar with a portable air con system blowing air in that direction.) no the terminals...

it "was" a 16mm cable that tailed from the 440v bus bar to the switch for a 3 phase induction fan that we use to induce airflow around our site.