Fig. 9From: Impact of volcanic ash from Cotopaxi-2015 and Tungurahua-2016 eruptions on the dielectric characteristics of suspension insulators, EcuadorESDD/NSDD ratios for Cotopaxi-2015 and Tungurahua-2016 ashes on both, porcelain and glass insulators. Red dashed arrow indicates the trend for each volcano, regardless of insulator typeBack to article page