Specifications include, but are not limited to: This project consists of connecting the 480-Volt side of transformer A to an existing switchboard located inside the Central Plant Building at Bayport Container Terminal by means of a new set of DLO cables with equivalent ampacity. The original connection was made with a 4,000 amp busduct. The original switchboard has vertical and horizontal constraints which limit traditional cable routing and connections. Therefore, a junction box shall be designed and fabricated for the connection point of the switchboard to accept traditional cabling. An elevated support pathway shall be created to extend through the building and out to the transformer. See attached pictures for reference. All work and equipment are within a 60-ft diameter footprint in a restricted area of the terminal. All employees and sub-contractors must possess a valid Transportation Workers Identification Credential (“TWIC”) card while working on the project. Otherwise, a foreman with escort privileges shall supervise/monitor all workers without TWIC while in secure area. The switchboard supplies power to the Administration Building including HVAC system and server room and is housed in a masonry building with space heating. Penetration through the wall exists for the original busduct and may need to be widened or a new penetration created to accommodate the new cabling connecting the transformer and switchboard. Additionally, an elevated pathway shall be installed to support cable tray. The cable tray external to the building must extend to the side of transformer B where a new penetration will be created to accommodate the new cables. The existing top penetration must be sealed and weatherproofed with a cap extending over the edge of the transformer if needed. Any additional electrical or mechanical work needed must be brought to Port Houston’s attention before additional work beyond scope or funding is allowed. Any items needing remediation must be brought to Port Houston’s attention for removal or action. DLO cables will be supplied by PHA. Items to be priced and supplied by the contractor for the job include the following: Busway transition box-custom creation for area above main breaker area approx.-16-inch height clearance. DLO cable termination kits – enough kits for connection of 3-phase 480-volt from transformer to the bus. Cable tray supports and associated hardware – suspended cable tray from bus cabinet within building to transformer – approximately 30-40 ft total length. Cable tray weatherproof covering – cover from building to transformer approx. 30 ft total length. Transformer weatherproof cover and weatherproof side penetration for new cabling – new covering for installation through new pathway of cabling into transformer (side installation). All labor and equipment necessary to perform the work described above. Testing shall be performed in accordance with NETA 2017 ATS priced at straight time and overtime rates: Provide NETA Acceptance testing on the 4000A cable bus. Additional testing may be suggested and priced for Port Houston’s review and approval.
