The insulation is damp. This condition is also common and generally occurs at enameled wire joints in direct buried or drained pipes. For example, if the enameled wire joint is unqualified and the joint is made under humid climatic conditions, […]
The insulation is damp. This condition is also common and generally occurs at enameled wire joints in direct buried or drained pipes. For example, if the enameled wire joint is unqualified and the joint is made under humid climatic conditions, […]