new shop in leeds

[wayne]

once the "kliks" made and tested then it just plug /unplug the klik doesnt need touching
the problem i had with was one with an uncommon design(f**k im doing some long words) not commonly used

 

[sparkyork]

ahh i see, the light fittings arnt on site yet, but like you say therll be a plug in the actual fitting coming from the klickety klix so thats ok then. in your opinion would it be beneficial having the main part of the shop on seperate mcbs for the lighting, like i said above? ive got enough spare ways in the board so...

ps on the e/lighting side i think im just gonna do a couple of circtuit straight from the board with key switches positioned appropriately.

rich

 

[wayne]

hmmmm Wayne old chap, so why do we supp bond extraneous in bathrooms then?

or did before the 17th

without getting tied in regulation knots ,your talking about bonding in addition to the main within a special installation,
tray is still defined as exposed

ahh i see, the light fittings arnt on site yet, but like you say therll be a plug in the actual fitting coming from the klickety klix so thats ok then. in your opinion would it be beneficial having the main part of the shop on seperate mcbs for the lighting, like i said above? ive got enough spare ways in the board so...

ps on the e/lighting side i think im just gonna do a couple of circtuit straight from the board with key switches positioned appropriately.

rich

someone more used to shopfitting desgn(tony?)can advise you best there

 

[Shakey]

without getting tied in regulation knots ,your talking about bonding in addition to the main within a special installation,
tray is still defined as exposed


someone more used to shopfitting desgn(tony?)can advise you best there

is it Wayne, think about it, why is tray exposed?

does it meet the defenition

 

[wayne]

is it Wayne, think about it, why is tray exposed?

does it meet the defenition

yes!!!! (sorry for the !! apparently i cant just put yes )!

 

[sparkyork]

what reg number are your guys referring to here?

 

[wayne]

im talking definitions see post 26

 

[Shakey]

im talking definitions see post 26

ok wayne,

exposed conductive part:

"a conductive part of equipment which can be touched and which is not a live part but which may become live under fault conditions"

(i know you know it Wayne, this is so everyone else can see straight off what we are discussing)

looking at equipment (electrical equipment) are you saying it will come under 'accessory'?

Is it an item for "distribution or utilisation of electrical energy"?

lets say i have a metal beam in the ceiling in the roof an factory. It is not connected to the structural steelwork so is not extraneous

If there is no cables near it, then it would not be an exposed conductive part

But if a lay a cable along it, would it then be an exposed conductive part????

And heres another thing

we are discussing BONDING the tray

but we also agree that it is not extraneous, so if it is an exposed conductive part, then connecting it to the MET would be via a CPC (ie earthing) by the regs defenition

if you were coneecting it an extraneous conductive part, (or another exposed conductive part) then that would be SUPPLEMENTARY bonding

You could not BOND it to the MET

so where is he connecting it to?


hmmmm, interesting one this

i have heard this argument before about back boxes as well

 

[wayne]

part of the definition of electrical equipment states ; wiring systems, accessories, appliances and luminaires.
exposed conductive parts are connected using just a protective conductor(411.3.1.1)
if you use the beam as part of you wiring system by definition it becomes exposed conductive part (by strict definition use common sense)
supplementry bonding is in addition to main bonding


back boxes ...see snags and solutions earthing and bonding (3rd edit)snag 21
shakeys my hero

 

[Shakey]

part of the definition of electrical equipment states ; wiring systems, accessories, appliances and luminaires.
exposed conductive parts are connected using just a protective conductor(411.3.1.1)
if you use the beam as part of you wiring system by definition it becomes exposed conductive part (by strict definition use common sense)
supplementry bonding is in addition to main bonding


back boxes ...see snags and solutions earthing and bonding (3rd edit)snag 21
shakeys my hero

i will dig it out tommorow Wayne and have a look, I had my mate, who is the area engineer for the NIC around for tea and bickies today, should have brought it up with him.....we shared some interesting view points.....

oh and Wayne, you are my hero as well

*sniffs*

 

[jonboy1]

have carried out projects in shopping centres and have found it a lot quicker using pirelli FP200 cable. Easier to strip but more expensive to buy. Don't try the other cheaper stuff as some idiot decided it was a good idea to put cloth, aluminium foil and plastic inside the cable to make it harder to strip!

 

[sparkyork]

ok doh key, its very interewsting i must say, so is the tray coming under exposed conductive part and can be connected via cpc? does this mean for example i can just come off one of my 16a commando sockets with an earth connection to the tray?

had a good day today and got most of the conduit up, and a nice dollop of concrete dust in me eye! y didnt i wear goggles :-(

 

[wayne]

hi jonboy good to see this thread getting back on track,shakeys the wind beneath my wings
and you sparkyork

 

[Shakey]

ok doh key, its very interewsting i must say, so is the tray coming under exposed conductive part and can be connected via cpc? does this mean for example i can just come off one of my 16a commando sockets with an earth connection to the tray?

had a good day today and got most of the conduit up, and a nice dollop of concrete dust in me eye! y didnt i wear goggles :-(

'tis interesting aint it?

well if the tray is an exposed conductive part (and its still an 'if) then it would HAVE to be connected to the MET via a CPC, as i have said it could be not be bonded, main or supplementary

So if its via a CPC, then presumably you would have to give it at least an R2 check and include it on your schedule of test results - but against which circuit I wonder

and commando sockets, surely you mean BS EN 60309-2 (BS4343) old chap

Shakeys note to self - *get out more*

 

[sparkyork]

yeah tho's are the ones! lol the old 4343's!

mmm, im gonna have 7 or 8, or maybe more circuits running on this tray!

say i did it against circuit 1 for example; refridgerator circuit, are you saying that on the R1 + R2 test on this circuit that i would have to add the tray resistance to the R2 of this particular circuit? and connect from the earthing block within the 4343 to the tray via a suitable crimp connection?

i would have to do this on the other side of the building as there are 2 power trays that are not connected to each other.

rich

ps. bloody eye still killing me!