Future-Ready Medium Voltage Installation: Tech Facility – Milpitas, CA
At a Glance
Pragmatic PE designed a new medium voltage load interrupter and underground vault for a Milpitas tech facility, delivering a permit-ready package on a compressed timeline. Parallel coordination across electrical, structural, civil, and vendor interfaces kept the drawing set intact and future distribution capacity defined before construction.
Project Specifications
Category: Commercial
Services Provided: Electrical Engineering
Completion Date: 2026
Contractor: RC Power
Project Description
Lead
A tech facility in Milpitas needed a new load interrupter installed in an underground vault, with provisions for future medium voltage distribution, on a tight design-to-permit schedule. Pragmatic PE was engaged by the electrical contractor to assess existing site conditions and deliver the full electrical, structural, and civil engineering package. Resolving existing system boundaries and equipment interfaces early limited rework exposure and kept the permit package intact through a multi-party coordination process.
Scope of Work
Pragmatic PE developed engineering and permit drawings for the new underground vault and medium voltage equipment installation.
Existing Conditions and Load Analysis
• Assessed potential equipment locations during a site visit to establish routing and interface boundaries with the existing primary switchgear
• Developed load calculations from field-gathered data to verify the existing system's capacity for both immediate and future loads
Electrical Design and Equipment Coordination
• Determined conductor and loadbreak elbow selections aligned with the new J-bar and interrupter configuration
• Coordinated with the equipment vendor on installation requirements and protection design before drawings were finalized
Permitting and Sub-Consultant Interfaces
• Extended the existing grounding system to the new equipment as part of the permit package
• Partnered with the structural and civil sub-consultant for underground vault design to support a unified permit submission
Challenges and Solutions
Constraint: Compressed design-to-permit timeline with contractor scheduling dependent on drawing delivery.
Response: Pragmatic PE sequenced site assessment and equipment coordination in parallel to avoid holding the drawing set.
Constraint: Limited existing system documentation required field verification before load calculations could proceed.
Response: A focused site visit established existing conditions and grounding system boundaries, allowing calculations to begin without rework.
Constraint: Coordinating electrical, structural, civil, and vendor deliverables within a single permit package.
Response: Pragmatic PE managed sub-consultant and vendor interfaces directly, keeping all package components aligned to a shared submission timeline.
Results and Impact
• Permit-ready drawing package delivered on schedule, supporting the contractor's construction timeline
• Future distribution capacity documented in advance, reducing scope ambiguity for follow-on phases
• Existing system boundaries and grounding continuity confirmed before installation, limiting field coordination issues
• Equipment vendor requirements resolved prior to drawing finalization, avoiding late-stage revisions to the permit package