Cleanroom Electrical Systems
Gasketed Lighting, Proximity Switches, Modular Electrical Systems
Cleanroom electrical systems, depending on process, can require multiple voltage, and high amperage power supplies to operate cleanroom environmental and process equipment.
Increased demand on existing commercial building electrical systems can require an increase in electrical capacity from the utility provider. Electrical wiring systems must be professionally engineered to
meet requirements for safety, environmental equipment, process equipment, and energy efficiency. Specialized processing equipment may require high voltage
dedicated circuits to operate correctly.
The following items should be taken into consideration when designing the cleanroom electrical system.
Cleanroom Electrical Devices:
- Cleanroom Air Handling Systems require specialized electrical
engineering to operate high voltage motors, compressors,
variable speed drive units, and desiccant systems. Typically the largest power
consuming system they require an energy analysis be performed on existing building systems
to be integrated as efficiently as possible. Many cleanroom processes will dictate
dedicated air handling systems for the cleanroom environment since typical commercial air handling system will not be
capable of the increased capacities for pressurization, air change, temperature, and relative humidity tolerances.
- Cleanroom Lighting Systems require the use of specialized cleanroom lighting fixtures
with fully gasketed and sealed housings. Sealed housings maintain the integrity of the ceiling system and prevent infiltration
of particulate or microbial contamination. Flow through units are available for use with HEPA filtration modules and rely on the
HEPA filtration module for the sealed housing. Cleanroom light fixture lenses should be of a smooth white design on the outside to
facilitate cleaning and avoid particulate entrapment issues. Large cleanrooms should consider the use of 277v fixtures for
- Cleanroom Light Switches and Outlets should be of a flush style design with
gasketed covers. Antimicrobial coating are available in cleanrooms where touch surfaces may require or benefit from their usage.
Electrical conduits and raceways can be a significant source of particulate intrusion in negatively pressurized cleanroom zones and should be
installed with the correct fittings and gaskets to prevent cross contamination.
Cleanroom Ionization Systems whether duct mounted or ceiling mounted may
assist in controlling electrostatic discharge and microbial bioburden in cleanroom environments. Air ionization in a clean room
environment became mandatory, in the disk drives industry and is likely to be the same in the semiconductor and flat panel
industry in the near future. The utilization of cleanrooms is also expanding to new areas such as pharmaceutical, biological,
genetic, and food industries. That is why it is necessary to take into account wider aspects of air ionization in a cleanroom
environment. Air ionization may provide a multisided effect on cleanroom personnel, as well as the technological process and environment
Cleanroom Modular Electrical Systems labor savings cam be up to 75% less than traditional hardwiring. Modular wiring systems are easily relocatable, scalable and
facilitate relocation of utilization equipment. comprehensive plug-and-play modular wiring solution from the lighting panel to the light fixtures, power receptacles and other
utilization equipment. Power poles, illuminated signage, multi-outlet assemblies and power channels for delivery of data and power as needed. The benefits of modular wiring solutions
are more critical in today’s fast-paced construction, since staying on schedule and budget is tougher than ever. Every job demands wiring solutions that reduce installation time and
adapt easily to design changes that occur during and after initial construction. Due to rising labor costs and shortage of qualified and experienced electricians, traditional wiring
methods no longer measure up.
Successful cleanroom electrical design dictates that all pertinent information be included in the cleanroom basis
of Design(BoD). Operational cost of the cleanroom environment will be of the largest repeating
expenses that can have
an impact on profitability. Designs focusing on initial cost can be detrimental to
sustainability and energy efficiency of
the cleanroom environment.