Bristol-Myers Squibb Medical Imaging
Location: North Billerica, MA
Electrical value: $200,000
Bristol-Myers makes products used
in the diagnostic medical imaging process. This was an 8,500
square foot ground-up project
including a 650 square foot vault, constructing a new cyclotron
(buildings where the products are made) tied into an existing
building where people were working daily.
this project – security, mechanics,
coordination and timeframe – presented a huge challenge
requiring exceptional coordination and teamwork among all
The cyclotron consisted of a six-foot thick
concrete vault surrounded by the control room, power supply
entrance and vestibule with a mechanical room on top.
The working area was radioactive and very dangerous. All
MEI employees received radiation and safety training
and had to
wear protective clothing and dosimeter badges. Since the
Bristol-Myers facility operates under extreme security with
detailed protocols in day-to-day operations, our personnel
and photo IDs in order to work.
The project involved installing
twenty-two 4” and 6” rigid
steel conduits in the 6-foot walls of the vault, but the
conduits had to be self-supported before the forms were in.
required cooperation and patience because all other trades
were working in the 6-foot forms at the same time! Precise
bends were critical. One conduit had 306
(degree) of bends and extended from ground level to 20 feet
in the air, self-supported.
In addition, we installed an underfloor cable tray system
and a cable tray system in trenches in the vault. There was
over 500 feet of double and triple tier cable tray.
had to be completed in seven-months. MEI, however,
could not begin work until the fourth month because
the vault and penthouse had to be constructed and the concrete
allowed to dry before electrical installation. In spite
of the time crunch and demanding working conditions, there
no accidents and the deadline was met.