Grounded ring is used to connect the grounding core and ensure electric integrity of the circuit.
The grounded ring is made of sheet stainless steel and has two entries. The first entry is intended for putting cable gland on threaded part of connection fitting. A grounding screw with washers and a nut, which clamp grounding core, shall be inserted into the grounding core. The grounded ring is fixed on the cable gland with a locknut.