Carr & Duff, Inc. replaced the existing electrical distribution and riser in the 5-story Dental School facility. The new system is 13.2kv to 120v/208v three phase four wire system, which replaced the existing 5kv to 120v/240v two phase five wire system.

The new system installation included a new 15kv primary medium voltage interrupter switches, 500kva substation transformer with a 2000 AMP main distribution board. Additionally, Carr & Duff, Inc. installed a new 1200 AMP bus duct riser, one 150kva three phase to two phase changer, seventeen retrofit panels to replace the existing two-phase panels throughout the building as well as emergency lighting inverters. Installation of the new service as well as panel change outs required off-hour scheduling and coordination with the facility to minimize interruptions for medical classrooms.

Latest Safety News

Winslow Elementary School Storm Response

Winter 2017 was not as severe as winters past on the east coast but we still had our fair share of storms. Being well equipped with the equipment and manpower to get the job done is what makes us stand out during destructive storms. Our expertise was needed in upstate...

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Our Recent Safety Committee Discussions

Carr & Duff, Inc. utilizes a Safety Committee made up of field and office personnel. The committee meets monthly to discuss and review issues or items that need to be addressed within the company. The committee is empowered to facilitate change when warranted to...

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Philadelphia’s YouthBuilds Charter School

On November 16th, 2016 Carr & Duff, Inc.’s Safety Department taught an “Electrical Safety in Construction” course at Philadelphia’s YouthBuilds Charter School. Carr & Duff, Inc.’s Safety Director, Wayne Sottung taught the interested students about the...

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Recent Projects

Temple Health – Jeanes Hospital Substation (2018)

Working with our General Contractor, Carr & Duff, Inc. constructed a new substation building...

Trenton Makes the World Takes (2018)

In August 1917 a historic and iconic sign was installed on the Lower Trenton Toll Bridge, and 100...

Pemberton Borough Utility Distribution Relocation (2018)

Carr & Duff, Inc was tasked with a design-build utility relocation project for the Borough of...

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