Can SWA be run in the same metal trunking as singles?

[Mike Johnson]

Just give him in writing an estimate of how much it will cost to hide all the SWA to his satisfaction and copy it to the client, I think there would be some very embarrassed face's at the next project meeting.

Thinking further, 4M ceiling with the trunking at 3.7M which means working off MWEP or ladders, has the Health and Safety Co-ordinator been involved in this? their main function after all is the Safety of the workforce, easier to do if they do not have to leave the ground, is it possible to run the trunking around the walls?

 

[twilks]

Just give him in writing an estimate of how much it will cost to hide all the SWA to his satisfaction and copy it to the client, I think there would be some very embarrassed face's at the next project meeting.

Thinking further, 4M ceiling with the trunking at 3.7M which means working off MWEP or ladders, has the Health and Safety Co-ordinator been involved in this? their main function after all is the Safety of the workforce, easier to do if they do not have to leave the ground, is it possible to run the trunking around the walls?

We have a mobile tower which is plenty safe enough. It's been decided that we run 50mm tray below the trunking which is fine. Leave the bosses to sort out variations from scope

 

[Mike Johnson]

Just a vagary to throw into the pot when they are being awkward.

The most common accidents on site's are falls from height, if the work can be done at low level that is preferable than working off a tower that you have to access probably without a harness and up a ladder, unless it's a professional tower with internal access, kick boards at all levels and double rails, getting your tools and equipment to the top level also has to have consideration, not in a bucket pulled up on a rope, or worse carried up by you whilst climbing the ladder, who supplies the access equipment, if it's the site these things if relevant should be brought to the attention of the COW for them to sort out.

 

[pc1966]

I would add that with 50mm trunking you need to be aware of bend radius of the SWA if the run is not straight. You might need to use a pair of 45 deg bends, etc, to get something sane. Also some suppliers have a very "square" 90 deg bend and others (like Unitrunk) have a bit more curve allowed.

 

[twilks]

I would add that with 50mm trunking you need to be aware of bend radius of the SWA if the run is not straight. You might need to use a pair of 45 deg bends, etc, to get something sane. Also some suppliers have a very "square" 90 deg bend and others (like Unitrunk) have a bit more curve allowed.

We're fabricating ourselves due to lack of access to materials. I believe 4 core 10mm has a ten fold diameter for bend radius so definitely need to be careful we.dont fall foul of that

 

[pc1966]

We're fabricating ourselves due to lack of access to materials.

WTF???

I believe 4 core 10mm has a ten fold diameter for bend radius so definitely need to be careful we.dont fall foul of that

If you have some cable tray you ought to be able to make a gradual 90-deg bend by cutting V-shaped sections out and bending it in the a fan-shape. You will need some short links to join up the inner edges that you cut away to give it some strength though.

 

[twilks]

WTF???

If you have some cable tray you ought to be able to make a gradual 90-deg bend by cutting V-shaped sections out and bending it in the a fan-shape. You will need some short links to join up the inner edges that you cut away to give it some strength though.

We're abroad and it takes a couple of weeks and a lot of money to get anything here, materials were ordered by the office.

 

[pc1966]

We're abroad and it takes a couple of weeks and a lot of money to get anything here, materials were ordered by the office.

Ah, that makes some sense.

 

[Simon47]

We're abroad and it takes a couple of weeks and a lot of money to get anything here

That's something that strikes me watching some of those North American series (Ice Road Truckers, Wikd Akaska, and the like. We're so used to just popping to the wholesalers to get common stuff from stock, or next day, or withing a few days if it's a special order. And planning on the basis that if we forget something, it's no big problem. Not just electrical, but for other stuff - e.g. I know I can pop round and pick up a bag of cement if I run out.
The idea that we have to accurately work out our materials a year in advance, have them delivered during a short window, and if we get it wrong then we're screwed is ... quite a mindset shift.

 

[Mike Johnson]

It's all to do with land area, if you look at any house in rural France, which is vast in comparison to the UK, you will see that nearly every house has a trailer sitting somewhere in the property, this is due to obviously to pick up supplies, but also due to the vast amount that companies charge for delivery.