High Voltage Electrical Installations

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    a) High voltage power lines. Royal Decree 223/2008.

    Periodic inspection by OCA every 3 years of lines with rated voltage higher than 30kV.

    b) Power plants, substations and transformer stations. Technical Conditions and Safety Guarantees in high voltage electrical installations. Royal Decree 337/2014.

    Initial inspection by OCA for installations with rated voltages above 30 kV

    Periodic inspection by OCA every 3 years.

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