Carr & Duff 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 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 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 further...

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Philadelphia’s YouthBuilds Charter School

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

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Recent Projects

Delivery Center (2020)

Carr & Duff was the electrical contractor for a fast track new 170,000sq/ft delivery center...

30th Street Station Passenger Information Display System (2020)

GBCA/NECA PDJ Award Winning Project Carr & Duff was selected as the prime contractor for the...

Citizens Bank Park Perimeter Hardening Project (2019)

Carr & Duff installed new electrical equipment and circuits for the exterior site security...

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