Ring Main Unit Market with Global Industry Analysis to 2022-2027 According to a research report "Ring Main Unit Market by Insulation Type (Gas-insulated, Air-insulated, Oil-insulated, Solid Dielectric), Installation (Indoor, Outdoor), Voltage Rating (Up to 15 kV, 15 kV–25 kV, Above 25 kV), Structure, Application, Region - Global Forecast to 2027" published by MarketsandMarkets, the Ring main unit market is expected to grow at a CAGR of 6.0% during the...