nVent ERICO CADWELD® high voltage copper connections give you all the advantages you have come to expect from exothermic connections. nVent ERICO CADWELD® connections have the current carrying capacity equal to the conductors they connect and will never loosen or corrode. The nVent ERICO CADWELD® high voltage welding set-up uses a unique ceramic fiber smoke filter system which prevents sparks and produces minimal smoke, but also reduces dust and other emissions to an acceptable level for exposures, even if used in unventilated small rooms and cable tunnels.