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Cooper Product Index (CPI–WE)
The price adjustment calculation is based upon the percentage content of price for each of the key components. The weighting factors for each product are defined below.
Weighting Factors (% of Price Content)
| Cost Component |
Distribution Transformers |
Substation Transformers |
Step Voltage Regulators |
| Aluminum |
5.00% |
1.60% |
3.60% |
| Carbon Steel |
4.90% |
1.60% |
1.30% |
| Copper |
2.50% |
7.90% |
2.30% |
| Core Steel |
23.80% |
13.30% |
12.20% |
| Dielectric Fluid |
8.40% |
3.80% |
4.90% |
| Energy Index |
7.29% |
7.29% |
7.29% |
| Other Costs |
48.11% |
64.51% |
68.41% |
| |
100% |
100% |
100% |
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