CASE STUDIES
These Case studies were executed by HAH Contracting Co. and serve to showcase our expertise in skills in challenging projects.
CASE STUDY 1- 380KV Expansion 9020 KAFC S/S (Riyadh-K.S.A)
Installation of two 380KV GIS diameters along with GIB, LCC, Control and Communication panels, LV power & control cables laying & termination of 150 Km and Cable trays installation works.
Project Name: Expansion of KAFC (9020) 380/132 Kv BSP Riyadh
Owner Name: Saudi Electricity Company (SEC)
Main Contractor: ABB Contracting Company
Installation Contractor: HAH Contracting Company
Scope: Installation of two 380KV GIS along with GIB, LCC, Control and Communication Panels, LV Power and Control Cables laying and termination of 150 Km & Cable tray installations.
Special Note:
This was extension work of two diameters of 380KV one & half bar scheme GIS in the existing substation 9020 in Riyadh KSA. This was special & difficult job as the working in live 380 KV room need special care and precaution in terms of safety. Further laying of control cable from GIS room to control room 350 Meter apart in the existing cable race ways & containments was a unique work.
HAH team with skilled manpower and trained crew made the difficult job easy and completed the work on time through special efforts running a dual day and night shift.
CASE STUDY 2- Installation of POS Technical Rooms and Cable Tray (Riyadh-K.S.A)
Installation of 16 Traction power substations and lighting substations alongside installation of 33kV GIS, LCC, AC/DC converter. Control and Communication panels. Laying of cable tray and traction power cables.
Installation of Cable tray along 156 KM of track at via duct and cut and cover heights.
Shifting of material to via duct height. Installation of Cable tray inside station with limited excess and tough environments.
Project Name: Riyadh Metro Line 4 & 6 Works
Owner Name: Arriyadh Development Authority
Main Contractor: Alstom Transport under the branch of FAST Consortium.
Installation Contractor: HAH Contracting Company
Special Note:
This was a mega project for HAH, and works are still continuing with continuous change orders being awarded to HAH for its excellent performance and adherence to quality principles.
The Installation of power stations rooms included design, supply and installation of steel structure for support of panels. Major coordination with multiple entities was required to pull off the job. Installation of Cable tray alongside the track and inside the stations was particularly tough due to the height of the via duct and difficulty in transporting material. Total contracted manpower for this project exceeded 250 people at peak times with special teams for logistics and support.
HAH demonstrated excellence and superb project management. Continuous change orders for further works have been awarded to HAH, and this project is still on-going.
CASE STUDY 4- Installation of New Catalyst Preparation Unit
Project Name: Installation of New Catalyst Preparation Unit at STCR-SABIC Riyadh
Owner Name: Saudi Basic Industries Corporation (SABIC)
Contractor: HAH Contracting Company
Scope: Installation of New Catalyst Preparation Unit Pilot Plant Project along with complete Design Submission and installation related to Civil Foundations, Mechanical work related to Fire Fighting and Chilled Water Connection including the necessary routing of Process lines along with welding of SS pipes upto 3inches and Electrical power supply system for the plant.
Special Note:
The subjected project involved the Installation of Pilot Plant in the existing plant area of SABIC in Riyadh. The project scope comprises of detailed Design Preparation, Submission and Approvals related to the Civil Foundations, Mechanical utilities connection and connection of Process lines from existing plant area. HAH received the pre-assembled Skid from Spain and perform the extremely difficult shifting of skid by using specialized sliding mechanism as the skid placement on the civil plinth was in a congested area surrounded by the existing plant equipment and utilities connections. The routing, welding and installation of process feedlines was connected from a source point around 350 Meter away from the skid area from the existing plant. The challenging part was the routing of SS pipes process lines of upto 3 Inches through a road crossing by using the existing installed bridge formation. Complete detailed design calculations were made and precise modifications were made in the existing bridge formation to ensure the load capacity of new installed lines along with the existing ones. HAH performed extensive welding work of these process feed line of SS pipes upto 3 inches with full compliance of SABIC environmental and Safety standards.
The project was a difficult task as the complete installation was performed in the running live plant area. HAH delivered this project successfully and got special appreciation from SABIC Team upon completion as per the schedule and declared timelines.
CASE STUDY 3- Expansion of Hawiyah 380KV
Project Name: Expansion of Hawiyah 380Kv
Owner Name: Saudi Electricity Company (SEC)
Main Contractor: National Contracting Company
Installation Contractor: HAH Contracting Company
Scope: Installation of Outdoor Hybrid GIS Installation along with complete Outdoor Equipment including the Installation of Disconnectors & Earth Switches, Outdoor CTs & VTs, Installation of Gantries for 380Kv Line and Extensive work related to Outdoor Aluminium Bus Bar Welding and installation works
Special Note:
The titled project was a very difficult task in terms of Installation works due to the hardships of Outdoor environment and technical complexities involved in the Outdoor Equipment installation. The welding work & installation of outdoor Aluminium Bus Bar of sizes 5’’ & 6’’ was an extremely arduous and needed to be done with accurate precision in order to meet the alignment of Outdoor Disconnector Switches and Earth Switches which are the part of protection scheme as per the design. The portion related to Gantry works involved the work at height of upto 40 Meters which was executed with specialized experienced team to avoid any kind of untoward situation. One of key and formidable work was the Laying of LV Power & Control Cable of more than 200Kms throughout the Concealed Cable Ducts and Manholes for all outdoor equipment. Great challenging situations were aroused due to the Civil Design of Cable Duct Banks which was handled by HAH with extraordinary arrangements to meet the project timelines by working in 24 Hour shifts.
HAH installation team handled the overall installation work professionally and succeeded the Technical Challenges during the project with keen involvement and precious guideline of HAH Management who possess strong experience of this domain. HAH completed the project without any major Non-Conformity and deliver the project as per the Client schedule and timelines successfully.
