CAL CONDUIT PRODUCTS
CONDUIT LIFECYCLE CALCULATOR
INSTRUCTIONS FOR USE
The Conduit Lifecycle Calculator helps to quantify the balance point, over years,
where the cost and life of conduit materials meet in demanding environments.
Higher cost with greater durability and higher corrosive resistant
may often be the more economical choice, depending upon the expected life
of the application involved.
The main factors involved in the calculation are:
- The number of years the application of the conduit material is projected to last.
- The severity of the environment in which it will be placed.
- The cost of the conduit material.
- The cost of installing the conduit.
- Costs to maintain the conduit over the projected lifetime of the application.
- Reinstallation costs, depending upon the lifetime of the conduit material (ASTM ratings)
- Loss of production during installation, figured in days of downtime and cost per day.
- The residual value of recovered materials after each reinstallation.
There are certain fixed assumption listed at the bottom of the worksheet
that are also automatically used in the computations.
The CLC WORKSHEET
ANNUAL MAINTENANCE COSTS
- Fill in the PROJECTED APPLICATION LIFETIME.
This should be the intended number of years that the conduit application should
be able to be reasonably maintained in place without reinstallation.
The worksheet will accept a number between 1 and 50,
and is set by default at 30 years until it is changed.
- Choose one of the 3 options representing the SEVERITY
of the atmosphere in which the conduit application will exist. This will set the estimated
Conduit Lifetime as stated by the ASTM. The default is MODERATE.
- Choose at least one of the conduit materials to include by checking the box next to it.
All unchecked materials will not be considered in the final calculation.
- Enter the Conduit Material cost for one of the Materials included above.
The Worksheet will automatically figure the costs of competing material types
by industry standards. However, you may manually change any of these
automatically generated numbers. This is a required field.
- Enter the Standard Installation costs projected for installing
the conduit application for each conduit material included in the calculation.
Reinstallation will reuse these figures as needed.
- Enter any additional projected Installation costs in the next set of text boxes.
Note that PVC-Coated installation costs, due to the special tools and skills
required for installation are automatically figured at 110% of the other conduit materials.
This figure may be changed manually or deleted and then
entering a spesific PVC-Coated cost.
- Under LOSS OF PRODUCTION, enter the DAYS of downtime expected from
START to FINISH if a reinstallation of the conduit application is necessary.
Note that downtime for reinstalling PVC-Coated conduit, due to the relative complexity
of installation, will generally be 110% of any other conduit reinstallation.
- To view the worksheets internal computations prior to calculation, based on your entries,
press the REFRESH button. To finalize the calculation, press the CALCULATE button to display
the Conduit Lifecycle Calculator. It is not necessary to press the REFRESH button for
the Calculation to proceed, however it is necessary to see
the latest state of the CLC Worksheet.
Authority 1 - 4% per year over the lifetime of the installation.
REMOVAL OF OLD MATERIAL
Removal of existing conduit during the replacement process is computed
at 25% of Subtotal of Installation Costs.
Replacement cost is determined by the initial Cost of Materials not considering inflation.
Reinstallation cost is determined by the initial installation cost not considering inflation.
RESIDUAL VALUE OF OLD MATERIALS
CONDUIT LIFETIMES IN CORROSIVE ENVIRONMENTS
Note that there is an OPEN button that may be used if you have visited this calculator previously
and have saved a Calculator result on your local computer. Pressing OPEN will take you to a window
that will let you recapture data from a previous, saved calculator session.
: To view the worksheets internal computations prior to calculation,
based on your entries, press the REFRESH button. To finalize the calculation,
press the CALCULATE button to display the Conduit Lifecycle Calculator.
It is not necessary to press the REFRESH button for the Calculation to proceed,
however it is necessary to see the latest state of the CLC Worksheet.
CONDUIT LIFECYCLE CALCULATOR
Once all required fields have been entered into the CLC Worksheet,
the Calculator will display the final results from the data. Conduit Materials that
were not included in the calculation are grayed out. The bottom line in the calculator
shows the overall comparison cost of using each chosen material
over the projected lifetime of the conduit application.
Use the BACK button to return to the worksheet to make changes
or test other input data. All of the current data is retained
in the worksheet until you leave this site.
Clicking the PRINT button will display a printer friendly version
of the CLC and open a Print window, allowing you to choose a local
printer to print out the calculator results.
Clicking the SAVE button will save all of the current data
in the CLC Worksheet on your local computer. You can return
to this site and retrieve this data by choosing the OPEN
button on the CLC Worksheet page.
Clicking on the EMAIL button will prepare an email message
with the calculated result for mailing to an email address
of your choice. To mail the calculation to more than one recipient,
separate each email addresses by a comma.
Please send any comments regarding the Conduit Lifecycle Calculator to email@example.com