Free copper vs copper-clad steel earthing assessment, 24–48 hours
Send us: conductor size or cross-section · route length · soil conditions · design life · fault current and duration · applicable standard. Within 24–48 hours you receive two sizing options (equal diameter and equal short-circuit withstand per IEEE 80), copper quantity and cost comparison, recommended copper-layer thickness, and the matching type-test items. The report is signed by the chief engineer – see a sample first (PDF).
| Step | What you get | Terms |
|---|---|---|
| 1. Technical verification pack | 0.25 / 0.6 / 0.8 mm sample sections (1.0 mm optional), cross-section sample, data sheet, English test summary with report numbers | 1 m samples of standard sizes free; longer or made-to-spec samples carry a small fee; freight collect, 100 % credited against the first order |
| 2. Trial order, 300–500 m (3–5 reels) | Non-critical earthing, third-party re-test | LME-linked quote valid 7 days; welding mould included with first trial |
| 3. Project volume | Kilometre-scale supply under a frame agreement | Copper-price-linked formula; deposit locks production slot |
Cong Yuanxin · Chief Engineer · WhatsApp +86 186 1002 3872 · Email evan.cong@ztcjearthing.com · LinkedIn linkedin.com/yuanxin-cong