Installation method

[TheReturnOfHightower]

So, we’re creating office space out of 2 classrooms. Metal stud wall will be put up, grid ceiling everywhere. We’ve had a price by one firm. I think it’ll be twin and earth lashed in in the ceiling void based on the price (although i haven’t seen spec yet). Given a job like this, would you find twin and earth and surface trunking an acceptable installation method? The grid is already up (repurposing classrooms) so access isn’t totally unrestricted.

so, how would you do a job like this

 

[Leesparkykent]

Depends what’s already there?

 

[TheReturnOfHightower]

MEM 2 board. A mix of different circuits already in different methods, a bit of buried conduit (that wouldn’t be much use going forward), T+E - but i think the opportunity will be taken to rewire it all as even the lighting circuits will need to be separately switched per office instead of one switch for the classroom.

 

[westward10]

Are you talking mini trunking.

 

[TheReturnOfHightower]

Are you talking mini trunking.

Probably on this quote. However, if i was doing it i think I’d put dado in to each office - i think it looks smarter and allows for a bit more expansion.

 

[westward10]

If the quote proposed mini trunking I would immediately reject it.

 

[TheReturnOfHightower]

If the quote proposed mini trunking I would immediately reject it.

I haven’t seen the spec yet. But what would you do in place? Cables in the stud wall? Conduit runs all over? T+E in ceiling void and brought down in dado etc?

 

[westward10]

Basket in the void with T&E dropped in steel tube, this provides fire proof fixings to boot. Dado is an obvious choice where necessary if you have IT classes or active screens and a couple of drops for standard cleaners sockets.

 

[Toneyz]

Without a photo or plan basket to dado riser.

 

[cliffed]

We will soon be returning to the old days,metal containment everywhere,which will be a good thing.
The installs now just create problems.

 

[TheReturnOfHightower]

Looks like I'm being lumped with the install at the minute, so I'll be putting dado drops in to all the office spaces, which will leave a few 'cleaners' sockets and light switches to worry about - I think steel conduit drops in the stud work are best for these, but I've not had to fix conduit like this before - is it just a case of saddles with self tappers on to the metal stud work for each drop, or is there a more elegant solution?

 

[Risteard]

Here the spec would insist on galvanised trunking with galvanised conduit drops wired with 6491B singles.