Medium Voltage Junction boxes are frequently used in tunnels or excavation tunnels to transport electricity for long segments on Medium Voltage cables . PTC Co. manufactures Medium Voltage junction boxes with rated voltage between 24kV , designed for : Outdoor or tunnel installations To protect live parts from direct contacts To avoid direct contacts with live parts Immediate installation , ready for use The junction box was designed to withstand severe mechanical use conditions and can include two or more connections via cover / gland or special cable clamp .
