Casne Engineering provided the electrical design of a new 16,000 square feet Fire station for the King County Fire Department #37. Emergency dispatch radio, intercom, truck bay light, and door control systems were part of the design scope. Fluorescent lights were used in the administration area, classrooms, training areas, and kitchen. Incandescent downlights were used in living quarters and dormitories.

As the electrical consultant for this 12th floor renovation, Casne Engineering designed the modifications to provide a comfortable working environment for King County Council members. The 12th floor of the King County Courthouse was previously used as a kitchen area to serve the jail. Casne Engineering was contracted to remove existing distribution panels and re-feed new panels that better suited the new purpose of the 12th floor. The west side was primarily going to be used for Council Chambers and would consist of approximately 45 small offices, reception areas, and conference rooms.

An existing 400A, 277/480V fused disconnect switch was designed to feed a new motor control center and, through an existing 300kVA transformer, feed a 600A distribution panel, which serves various branch panels throughout the 12th floor. A new 400A, 480V motor control center was designed to feed various air handling units and pumps located on the fan floor above. Smaller individual heat pumps over each office were served from a panel on the 12th floor.

The lighting design consisted primarily of fluorescent indirect fixtures in the council members’ offices and surface fluorescent fixtures in reception areas and corridors. Energy efficient T-8 lamps and electronic balasts were used in he majority of the light fixtures. Appearance was of great importance so high quality attractive fixtures were utilized throughout this area.

Data outlets and dedicated receptacles were located in all office spaces and reception areas. The dedicated receptacles were separated from normal power receptacles and were protected with surge suppression at each location and at the panel. Fire alarm devices were located throughout to provide adequate coverage per King County fire alarm guidelines. All devices on the 12th floor were tied into the building’s main fire alarm system as a separate zone.

Casne Engineering was responsible for investigating the capacity of electrical distribution equipment, power quality options, additional requirements for extended standby power capability, and the identification of National Electrical Code deficiencies at both the Temple of Justice and the Insurance Building at the Washington State Capital Campus. Casne Engineering investigated options for improving the poor heating zone controls and methods for correcting problems with elevator control, cab environment, and lack of fire alarm elevator recall. The study culminated in a formal summary of our findings, recommendations, and the construction cost estimates for those recommendations.

This 16,000 square feet office building would be the main field office for the Ammo Supply Point at Fort Lewis. The 13.8kV incoming primary was transformed down to 120/240V, single-phase to provide power distribution, lighting, telecommunications, and fire alarm for this facility. A 600A service fed branch panels for main distribution. A digital electronic key system was installed as directed by Fort Lewis for their telecommunication needs. Surge suppression was also provided to protect computer equipment.

Fort Lewis selected Casne Engineering to convert an existing 9,000 square feet Garden Shop into the main office for base family housing. The electrical task was to feed new branch panels for lighting and power distribution from an existing 1200A main switchboard. Power, telephone, and data cabling were distributed for connection to new modular furniture. A new lighting layout, as well as an addressable fire alarm system were also part of the scope. Electrical cost estimating was done on Means Pulsar as directed by Fort Lewis.

Casne Engineering Inc. designed the electrical and control system for a complete replacement of the fire alarm and communications system for the Jackson Federal Office Building located in downtown Seattle.

This project included design of a new fire alarm system including break glass stations, emergency pull stations, smoke detectors, heat detectors, sprinkler system flow, and tamper switches. The new fire system included an annunciator panel located in the control room for system monitoring.

The fire alarm control system also included interface to the elevator controls for elevator recall and interface with the building security system for door release operations during a fire alarm. The project also included design of a fire alarm annunciation and communications speaker system. This system was designed with several prerecorded messages to be delivered to floors related to a fire alarm. The messages would direct personnel to take appropriate action.

This system may also serve as two-way communication between the floors and the control room for paging, maintenance, and security.

Designed a new 3,000 square feet data center with N+1 reliability through two parallel 80kVA Uninterruptible Power Supplies (UPSs). The UPSs are configured in a true on-line isolated primary redundant configuration with a static by-pass switch. The Data Center reliability is further increased with a 250kW diesel generator, which is capable of powering the facility through an extended power outage. Both the diesel generator and the UPSs are provided with remote trouble and failure alarming. Casne Engineering has also increased the reliability of the normal utility power supply by reconfiguring the entire campus medium voltage system from a radial feed to a loop-feed system, which will allow for the isolation and sectionalizing of a failed medium voltage feeder or transformer.