Everything To Know About Medium-Voltage MV 105 Power Cables
A MV-105 Power Cable is one of the most popular power cables on the wire and cable market both in the United States and worldwide. This blog is a tell-all about MV-105 Power Cable, from its applications to variations and unique characteristics.
What Is A MV-105 Power Cable And Where Is It Used?
A medium-voltage power MV-105 cable is a cable with a voltage between 2,4kV and 35kV that is used within the power grid to supply and transport electrical energy.
Despite the fact that medium-voltage cables are a part of the power grid, they do not actually transport the electric level from state to state across the country. This is the job of high-voltage cables on high-voltage power lines.
Medium-voltage cables like MV-105 are used on the preliminary stage between the national high-voltage network and the residential, commercial, and industrial buildings which are the end receivers of electricity.
Medium-voltage cables can be a part of state medium-voltage lines, but they are also very often owned by private companies. Large office premises, production, hospital and campuses, public premises, and radio towers possess their own medium-voltage lines.
What is the difference between MV-95 and MV-105 Cables?
MV-95 and MV-105 are essentially the same type of medium-voltage cable. The difference between them stems from the fact that MV-105 has a maximum conductor temperature of 105 ºC, while MV-95 has a maximum conductor temperature. This impacts the applications of these cables, as they are suitable for environments where the temperatures differ from each other.
The Voltage Of MV-105 Power Cables
MV-105 cables are available in different voltages that fall under the definition of medium voltage, from 2,4kv to 35kv. Some standard variations of medium-voltage cables are 2,4kv, 5kv, 8kv, 15kv, and 25kv/35kv. The 15Kv MV 105 power cable is the most popular one.
Insulation Levels of MV-105 Power Cables: 100%, 133%, and 173%.
One concept that is quite unique to medium-voltage power cables is its insulation level. MV-105 cables are available with 100%, 133%, and 173% insulation levels. The insulation level essentially determines how good the insulation is at dealing with mechanical stress.
An insulation level of 100% means a standard level of coping with the mechanical stress on cables.
An insulation level of 133% is primarily for 15Kv cables, the voltage of which varies within the 15kV/1.732 range. This insulation level is great for environments where voltage variation occurs up to 1 hour at a time.
If the instability lasts more than an hour, then an insulation level of 173%, the strongest one available, is required.
What is an MV-105 Cable With A Concentric Neutral, And When Should It Be Used?
When a cable like MV-105 has a concentric neutral, it means that the said neutral will carry the faulty currents during the faulty conditions, ensuring safe operation of the cable within the electric circuit.
Because of this additional safety measure, MV-105 cables are used during power distribution, bringing electricity from the transmission lines to devices and equipment. While using an MV-105 cable with a concentric neutral in unstable currents is a necessity, one has to mind that this cable is not flexible and a bit more challenging to install.
