In the context of globalization, the transformation of the manufacturing industry has become an inevitable trend. For many manufacturing companies, in order to establish themselves in a fiercely competitive market, they must adopt new strategies and measures.
The Material War – The ‘Dark War’ between Copper and Plastic
1. Conductor: Oxygen free copper vs regenerated copper
✔ High quality cable: made of 99.99% oxygen free copper (Chilean CCC grade), with low resistance and long service life
❌ Low price cable: doped with recycled copper or even cadmium alloy, resistance increases by 15%, prone to oxidation
2. Insulation materials: imported vs. recycled materials
✔ Top manufacturers: Nordic Chemicals/Dow special materials, resistant to aging and high dielectric strength
❌ Poor quality manufacturers: mixing recycled materials, high impurities, may crack after 3 years
Craft Battle -0.1mm Accuracy Competition
1. Conductor compression technology
Ordinary manufacturer: Simple circular twisting, with a filling rate of only 80%
Top manufacturer: 45 ° fan-shaped compression, filling rate of 93%, conductivity improved by 10%
2. Insulation eccentricity
The national standard allows ≤ 8%, but high-quality manufacturers control it within ≤ 3% (military grade standard)
3. Crosslinking process
Poor quality cable: cross-linking degree is only 70%, prone to aging
High quality cable: cross-linking degree ≥ 90%, lifespan increased by 50%
case
Due to the use of low-priced cables, the insulation layer of a certain wind farm cracked extensively after 5 years, and the replacement cost exceeded 120 million yuan!
Testing Standards – Why Sampling ≠ Reliability?
1. Ordinary manufacturers:
Only conducting “spot checks”, even if the samples sent for inspection are different from the actual supply
Partial discharge capacity ‘qualified’ (≤ 10pC)
2. Top manufacturers:
100% online detection, with data recording for every meter of cable
The local discharge capacity is controlled at ≤ 2pC (far exceeding the national standard)
Post time: Jul-02-2025