Use the right mechanical term
Keep stress values, force values and elongation percentages in their correct units. A single-wire result does not automatically define a complete stranded conductor's performance.
| Term | Procurement meaning |
|---|---|
| Tensile strength | Reported maximum tensile stress under a defined test method |
| Breaking load | Force associated with failure of the tested wire or construction |
| Elongation | Extension reported with the specified gauge length and test basis |
Request applicable test records
- Material grade, condition and finished diameter
- Strand construction and actual cross-section if relevant
- Specimen identity, test method and gauge length
- Measured result, acceptance limit and report date
Separate mechanical and electrical duties
Handling, span, installation load, forming and connection requirements should be reviewed for the actual product. Do not reuse one reported strength value across all CCS grades and sizes.
Electrical resistance, heating and fault duty require their own evaluation. A stronger steel core is not proof that a wire carries more current.
This guide supports initial specification review. Confirm current product data, availability and application acceptance for the exact conductor under consideration.