Long lead items are those construction equipment or materials that need to be procured and whose procurement lead time (which includes shop drawings, fabrication, delivery) will lead to a delivery date on site that will impact negatively the installation dates of the programme.
Check with your procurement team, what is the delivery lead time for your construction materials; they may have to look at the procurement costs, the requirements of the client (specifications), mode of delivery (by air, ship, land), what shop drawings need to be produced before fabrication can take place; there may be actual site dimensions needed.
It is not necessary that it will take months for an item to fall under this category.
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18 years 6 months
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Submitted by Salar Al Zubaidi on Sun, 2009-10-11 07:34
The definition of a "Long Lead" item is any piece of kit that is required to be engaged in the project with a procurement time that is likely to affect the completion date.
In tunnelling the availability of the head shield would probabbly be the most critical.
Before you start planning anything set down on a spreadsheet a list of all the pieces of kit that is required and in the next column put the procurement weeks.
This will show you what are the most likely critical Long Lead Items.
When this data is applied to your programme you will learn which one is critical.
Equipments which you could get in local region of your project location they are classified as short lead items whose order & delivery period is less than a week
Long lead items are those whose order to be placed in other countries ,followed by manufacture period consumes more time after manufacture they do factory acceptance testing then delivery to site through over sea or air freight
there is no standard for minimum production period it depends on your project contracts and material specification
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16 years
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Submitted by John Drokovic on Sat, 2009-10-10 02:50
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13 years 9 monthsLong lead items are those
Long lead items are those construction equipment or materials that need to be procured and whose procurement lead time (which includes shop drawings, fabrication, delivery) will lead to a delivery date on site that will impact negatively the installation dates of the programme.
Check with your procurement team, what is the delivery lead time for your construction materials; they may have to look at the procurement costs, the requirements of the client (specifications), mode of delivery (by air, ship, land), what shop drawings need to be produced before fabrication can take place; there may be actual site dimensions needed.
It is not necessary that it will take months for an item to fall under this category.
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18 years 6 monthsRE: How do u identify long-lead equipment in your
Gents,
I wish you can visit this website to have a very clear of the long lead item.
http://www.planningengineers.org/knowledge/leadtimes.aspx
Member for
19 years 10 monthsRE: How do u identify long-lead equipment in your
Hi John
The definition of a "Long Lead" item is any piece of kit that is required to be engaged in the project with a procurement time that is likely to affect the completion date.
In tunnelling the availability of the head shield would probabbly be the most critical.
Before you start planning anything set down on a spreadsheet a list of all the pieces of kit that is required and in the next column put the procurement weeks.
This will show you what are the most likely critical Long Lead Items.
When this data is applied to your programme you will learn which one is critical.
Best regards
Mike Testro.
Member for
16 years 11 monthsRE: How do u identify long-lead equipment in your
Equipments which you could get in local region of your project location they are classified as short lead items whose order & delivery period is less than a week
Long lead items are those whose order to be placed in other countries ,followed by manufacture period consumes more time after manufacture they do factory acceptance testing then delivery to site through over sea or air freight
there is no standard for minimum production period it depends on your project contracts and material specification
Member for
16 yearsRE: How do u identify long-lead equipment in your schedule?
Thank Shahul for your reply.
Now I have the following questions:
1. Is there any minimum production period for this? (in order for an equipment to fall under the category of long-lead item)
2. What do you with equipments that are NOT long-lead items (i.e. bulk material)? Do you put them in the schedule or ignore them?
Thank you in advance.
Member for
16 years 11 monthsRE: How do u identify long-lead equipment in your schedule?
Equipment whose production period is long is termed as long lead items
Some of long lead items are
1.chillers
2.Generators
3.Pumps
4.AHU/FCU equipment
5.switchgear and so on
One has to go through specification and conditions of contract to identify the long lead items
In the programme long lead items duration are tailored in to 2 0r more activities
for example
100 days long lead duration for generator to be delivered at site
so you need to split them up
1. for ordering of generator 20 days
2. for manufacture of generator 20 days ( 1st set)
3. for manufacture of generator 20 days ( 2nd set)
4. for delivery of generator 20 days ( 1st set)
5. for delivery of generator 20 days ( 2nd set)
then link them up to installation process