DP PILLAR IS INTENDED TO ACCOMODATE THE JOINT BETWEEN THE SECONDARY CABLE AND TERMINAL BLOCK STUB CABLE OR BURIED SERVICE WIRE. IT IS MADE OUT OF MILD STEEL AND HOT DIP GALVANIZED AS PER BST 729 / ASTM 123. BOTTOM PART OF THE SUPPORT IS BITUMEN COATED AND DP HOUSING HAVE THE FOLLOWING:- 1. MAIN SUPPORT 2. TOP COVER 3. MIDDLE COVER 4. BOTTOM COVER 5. LOCK & KEY AND EARTH CLAMP 6. TERMINAL BLOCK 7. JOINT ENCLOSURE SHEET THICKNESS IS 2MM AND  HEIGHT IS 1615+/- 5MM DEPTH 140+ / - 2MM - INTERNAL DIMENSION WIDTH 197 + /- 3MM - INTERNAL DIMENSION