Extra High Voltage Engineering Consultancy Services

Abu Dhabi - Electrical Design and Drawings for 33kV Overhead Line sections - L2, L3, L4 of Power Network Expansion Project in Abu Dhabi UAE of ADNOC - Al Dhafra Petroleum Operation Co. Ltd. (Job entrusted by Enfras Technical Services LLC, Dubai)

Scope of Work :

1. Preparation of SLD of Enfras scope comprising L4, L2,L3 including Rig Road Crossing UGC, Switching stations No. 

2. Undertake necessary load studies for L2 (3.17km), L3 (7.94km) & L4 (23.5km) S/C OHL and propose switches along with specification for switches.

3. Conductor Sizing Calculations For New Line L2, L3, L4

4. Typical Earthing design calculation:

a. Standard Tower Foot Earthing (By MS Excel) 

b. Earth Mat Design at specific locations (By MS Excel)

c. Additional deep well earthing where resistance is high (By MS Excel)- Typical only one required, where high soil resistivity to be considered.

d. Grading Ring - 1 for rig road crossing, 1 for terminal structure. 

5. Typical Earthing Drawings for above designs.

6. Earth fault Rectification study and Recommendation.

7. Underground Cable calculations - Two for rig road crossing (150m and 500m) and Two for Consumer end (200 m and 500 m).

8. Adequacy check for Tap Off (To be compiled by ENFRAS) T-Off locations associated with existing line.