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S&S Electrical Services Inc.
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Project profile

High-Voltage Switchgear and Transformer Conversion

A constrained vault conversion with limited downtime.

S&S was engaged by a major utility to replace high-voltage switchgear and transformers serving two apartment buildings. The work moved the buildings to low-voltage service inside underground vaults with difficult access.

Scope and constraints

The team planned the design/build work around confined vault space, heavy equipment movement and a busy surrounding area.

  • Engineering and Electrical Safety plan approval
  • Supply and installation of new equipment
  • Removal and responsible disposal of old equipment

Continuity of service

The published project account reports downtime of under six hours per building. The changeover was planned so temporary generators were not required.

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