PCOCC = ESCOCC = OCC...... everything with xxxOCC is the same, PCOCC is the very first OCC use by Audio Technica, they name it "PC"OCC base on the name of the developer, ESCOCC is use by Denko, they name themselves as "ESC"OCC for marketing purpose, same apply to alll other "What's"OCC.
There is also SPCOCC (Silver Plated Copper OCC), as long as the main material is single crystal copper, anyone can name themselves xxxOCC.
Minimum purity of OCC is 5N, right now the technology can't manufacturing OCC over 6N, even Nexxxch 7N is only almost 7N, not real 7N, however, non-OCC copper maxiumu purity now can reach real 8N, therefore there is still room for improve.
China can manufacturing OCC for over 10 years, but before mostly export or OEM only, now due to national commercial situation, export business no good, many OEM muafacutrer try to make direct sales, that's why recent years so many China made OCC appear.
OCC is nothing expensive or difficult, but China made OCC may not 100% up to standard due to QC, such as one 300M reel of cable may not all 300M is OOC, maybe 50M not QC pass but they don't cut and throw away, however, that 50M is still very high purity OFC, only not reach the OCC standrad.
Famous brand OCC in reel, mostly not sell in large reel, this is because for example a whole pc of 1000M wire will have some percentages of length/crystal can't form into OCC.
Ceramics is another topic, AT also have Titan, they are just mixed some other material into the insulator for anti-resonance or shielding purpose, nothing related to the conductors.
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發表於 2012-2-24 12:29
