System-Wide Electrical

Our firm provides a full range of electrical engineering services for system-wide electrical systems including conduit, cabling, routing, interconnection, power, signal, communications and grounding systems.  Our experience includes all transit subsystems, combined system, ductbank for all electrical subsystems including vaults/manholes, conduit and concrete encasement; power/signal/communications conduit/cables fed to/from this ductbank to all subsystems, along with power, signal and communications conduit/cable system-wide for stations, operations and maintenance facilities, park and ride facilities, grade crossings/traffic controllers, shared ductbank with other public agencies, and intermodal connections.

  • Transit subsystem interface definition matrix, and conduit/cable requirements, between all subsystems
  • Subsystem contract interfaces and riser diagrams
  • Emergency power interface definition
  • Definition of physical and electrical interfaces including enclosures, conduit, rack space, terminal strips, grounding interfaces, and other utilities
  • Evaluation of safety/security design criteria for required field devices and systems
  • Review of individual subsystem concept, preliminary and final designs to ensure all required conduits/cable have been identifiable
  • Site inspections
  • Response to RFIs, submittals, contractor design review
  • Resident engineers, contract administration
  • Construction safety certification
  • Test procedure development
  • Megger, continuity, earth resistance testing support
  • Hi Pot testing testing support
  • Systems integration testing support with equipment connected
  • Plans, specification and estimates
  • Combined system ductbank for all electrical systems, vaults, concrete protection/encasement
  • Design of vaults, manholes, concrete encased ductbank, for require traffic rating
  • Manhole, handhole, pullbox design an dmaterial selection
  • Signal and communications bungalow design and materials selection
  • OCS/TPSS, signals, grade crossings, communications, facility, housekeeping power cabling, lighting, irrigation, water controls, fire alarm all technology systems cable/conduit
  • Load calculations, wire sizing, jacketing selection
  • Conduit and cable schedules, routing, bend radius, fill calculations
  • Power distribution design
  • Design of panels, transformers, power supplies per NEC requirements
  • Experience includes NEC, NFPA 130, BICSI, TIA/EIA and many other standards
  • Conduit, cable trays and wiring
  • Lighting and Lighting control design
  • Emergency power system design
  • Uninterruptible power supply design and equipment selection, including UPS, chargers, transformers, batteries
  • Power conditioning/surge suppression
  • EMI design, use of shielded twisted pairs, shield grounding systems, protection blocks
  • Chassis and signal grounding systems, including isolated systems
  • Ground rings for remote buildings/enclosures, station ground rings and grids
  • Solar power systems
  • Definition of SCADA field device location and wiring requirements
  • Interface termination cabinets and equipment

Featured Projects

FasTracks Light Rail & Commuter Rail (Systemwide) 7 Projects, Denver, Denver RTD: Provided planning, stakeholder meeting facilitation support, report preparation, presentations to management for projects, site evaluation report, and design services for this light rail system, including communications systems for light rail, commuter rail vehicles and facilities. Completed facility inspections and evaluations. Projects included CAD/AVL, Voice & Data Radio, Radio Propagation Analysis and Report for existing and new proposed radio systems, Radio System Narrowband Replacement Report, Industry surveys for new technology systems, WiFi System design for 7 bus facilities to support ERP, CCTV and other systems for the initial system and later on for an upgrade to new equipment. Developed a new fiber optic network topology for use systemwide to resolve lack of trunk fiber.

FasTracks Light Rail & Commuter Rail (Systemwide) 7 Projects, Denver, Denver RTD

Sacramento RT (Systemwide), Sacramento Regional Transit District: Provided design and construction management services for security/closed circuit television systems at 50 passenger stations, as part of a Homeland Security upgrade project.

Sacramento RT (Systemwide), Sacramento Regional Transit District

Tasman East Light Rail System, San Jose, Santa Clara VTA: Provided design and construction management services, resident engineers, inspectors, contract administration. Our work included systems and civil subsystems (communications, fare collection, integration with substations, overhead contact system, signaling, track, stations, maintenance facility, and control center), for this 6 station, 4.9 mile extension, from the Baypointe Transfer Station to Hostetter Road. The project includes 1.4 miles of elevated guideway.

Tasman East Light Rail System, San Jose, Santa Clara VTA