A.The rigid conduit is connected to the electrical equipment and the appliance through the flexible conduit. The length of the Flexible Conduit is not more than 0.8m in the power engineering, and is not greater than 1.2m in the lighting engineering .
B. Flexible Metal Conduit and metal flexible conduits cannot be grounded (PE) or connected to zero (PEN). Conduit and trunking, at the deformation joint of the building, a compensation device shall be provided.