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lovekobelxm
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Join Date: Aug 2012
Posts: 22

How to Estimate Cable Tray Weight Onboard?

11/29/2012 4:36 AM

How to estimate the weight of cable tray onboard an offshore drilling unit, does it have a defined relations with the cable size and number?
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RAMConsult
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Engineering Fields - Power Engineering - New Member

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#1

Re: How to Estimate Cable Tray Weight Onboard?

11/29/2012 11:49 AM

1. Get the cable schedule,

2. Get manufacturers' catalogs and look up the weight per foot,

3. Multiply and add appropriately to get overall weight per foot,

4. Don't forget the weight of the tray and its mounting accessories,

5. Multiply by the total length of the run.

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lovekobelxm
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Join Date: Aug 2012
Posts: 22
#3
In reply to #1

Re: How to Estimate Cable Tray Weight Onboard?

11/29/2012 7:49 PM

Hi, thanks for you help. But what about during the basic design, while we dont have required materials available, and most of importance, we dont have time in contract. Just a rough estimation is OK. Let's say, the cables are 500 tons, then the cable tray and accessories will be a percentage*500 tons, eg 10%*500=50 tons. Do we have that rough percentage?
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#4
In reply to #3

Re: How to Estimate Cable Tray Weight Onboard?

12/05/2012 6:10 AM

"Undefined we" alarm.

"We" don't otherwise "we" wouldn't be asking.

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TonyS
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#2

Re: How to Estimate Cable Tray Weight Onboard?

11/29/2012 2:30 PM

Failing that guess

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