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Heat Tracing Norms.

3 replies [Last post]
Thu, 2007-08-30 00:56
DATTATREYA PADHARTHI
User offline. Last seen 5 years 51 weeks ago. Offline
Joined: 18 Apr 2003
Posts: 90
Groups: Petro-Chem / Oil & Gas, Regional Representatives
Friends,
One part of our project includes preparating of small work requests & estimating the Man-hours required to complete the Engineering work.
Electrical Heat Tracing expert seldom gives the Man-hours saying that it cannot be quantified at the start & even when Isometrics are issued.. My contention is that at some point of time, with historical data etc, one can always estimate the Man-hours required with more or less accuracy.
Are ther some standards linking Piping Isometrics (Length/Volume, type etc) with the Tracing Quantities & with Tracing efforts.
Cheers

Dattatreya
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Replies

Fri, 2007-09-21 19:12
#1
Izam Zakaria
User offline. Last seen 7 years 50 weeks ago. Offline
Joined: 28 May 2006
Posts: 221
Groups: GPC Malaysia, Petro-Chem / Oil & Gas
Of course ..then I propose to create a new norms...dun too much depends on what their have...planners must creative...
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Fri, 2007-09-07 23:17
#2
DATTATREYA PADHARTHI
User offline. Last seen 5 years 51 weeks ago. Offline
Joined: 18 Apr 2003
Posts: 90
Groups: Petro-Chem / Oil & Gas, Regional Representatives
Dear Izam,

You got me wrong. I am not talking about the relationship between deliverables.
My query was even after giving ISO’s for the Tracing team, we do not get how many mhrs/time is required for tracing work let alone getting a decent estimate after Layout/design.
This affects completion dates.
Normally when doing an EPCM/LSTK from the start we do have norms, but when the Project reaches a stage where Offshore Works come in piecemeals it becomes difficult to estimate.

Cheers

Dattatreya
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Fri, 2007-09-07 22:44
#3
Izam Zakaria
User offline. Last seen 7 years 50 weeks ago. Offline
Joined: 28 May 2006
Posts: 221
Groups: GPC Malaysia, Petro-Chem / Oil & Gas
Colleague,

To assign manhours for each deliverables nor CTR (Cost Time Resources based on nos of drawings, philosophy, specification and reports. if u talking bout link, of course Piping isometric will implemented after PDMS model and P&ID firmed out.
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