MIL-HDBK-1004/10
c) The predicted number of leaks on the steel line without
cathodic protection increases exponentially after the first leak in year
10. This prediction is based on historical data and technical expertise.
d) The predicted number of leaks on the steel line with cathod
protection is zero. Continued maintenance and protection is assumed. A
major rehabilitation of the system is required every 15 years. This
prediction is based on historical data and technical expertise.
e)
To compute present values, a 10 percent discount rate is
assumed.
f) Costs of labor and materials rise (or lower) with the gener
inflation rate. Cost of fuel, however, requires special treatment when
determining the value lost (disbenefit) from a pipeline leak. Otherwise,
this analysis requires no special treatment of inflation.
13.5.4
Cost/Benefit Analysis
13.5.4.1 Cost - Alternative 1--Steel Line Without Cathodic Protection.
Cost of steel line without cathodic protection - 0,000. Cost to repai
leaks - @ ,000 each.
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