Over 99% of the Medium Voltage UD cables that we produce and stock have solid copper neutrals. Some customers ask for the reduced tinned copper neutrals version and state it prevents any posibility of oxidation (which is unavoidable in bare copper neutrals) and while welding the neutrals (for example when applying accessories or even jointing cables) using tinned copper neutrals is easier and faster.
The demand for Oxygen Free cables is mainly seen in the Telecom industry. As far as we know, there has never been a demand for Oxygen Free cables in the power cable industry. Our Medium Voltage Power Cables have not Oxygen Free conductors.
A comprehensive Handling/Installation & Testing manual for our medium voltage cables is one click away under Support. Moreover, a manual will be emailed if you ask send an email to firstname.lastname@example.org
There is no Fire Resistance Rating known of the referenced cable, as defined in ASTM E-119. The cable has fire retardant properties but is not fire resistant. Its behaviour in a standardized flame propagation test, meets the requirements of the UL1072 Standard for MV cables for Cable Tray Use as required by the NEC. That means that the cable passes the UL 1685 Standard "Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables" (smoke measurements are not applicable). The cable is UL Listed.
The ethylene content of the elastomer used in the EPR insulation compound is 74%. Please refer to Electric Cable Compounds, Inc. white paper which discusses, in detail, the Ethylene Content and the Role of Added Polyethylene in EPR Insulation
Our Medium Voltage cables are designed and manufactured to withstand at least 40 years of normal operation once it`s energized. All our inventory is stored in secure and climatized State of the Art 3 year old Regional Distribution Center, which insures the cable quality until shipped to the customer.
As of 010104, Superior Cables Ltd., will produce the MV105 cables with a 25% overlap. All older MV105 inventory has an overlap of 18-20% (exceeding the required 12.5%). The change was triggered by customers request.
Superior Cables Ltd. recommends the use of Silicone based lubricants for difficult medium voltage cable installations. The technical report about this material can be reviewed @ www.polywater.com/teleto10.pdf