Smith, Fause & McDonald, Inc.

• San Onofre Nuclear Generating Station, San Clemente, California

In Plant Paging System (IPPS) Design

Consulting Design of High Reliability In-Plant-Paging-System (IPPS) to meet N.R.C. Intelligibility Requirements.  Input included systems topologies for redundancy and multipoint access, signal supervision, UL 1480 compliance criteria, 48V DC capable equipment, on site measurement, contract analysis and design at the client's site.

In conjunction with the design of the new plant-wide intercom, paging and emergency evacuation system, SFMI was charged with designing a sound system to achieve a speech intelligibility criteria of 95% (sentence intelligibility).

To facilitate use of proprietary design techniques, SFMI collected and analyzed hundreds of site measured spectra and reverb times to determine the critical distance (maximum throw) of each device.

Client: Fluor Corp (under contract to Southern California Electric), Advanced Technology and Telecommunications Divisions, Irvine, California

• Alma Street Substation, City of Palo Alto, California

Noise measurement and design mitigation for expansion of an existing 12,000 kV substation and for the addition of a second transformer and switchgear assembly. Mitigation had to comply with both the Municipal Noise Ordinance as well as the General Plan and the Area Plan of the City of Palo Alto. Measurement of the transformers were performed during peak afternoon loads.  Measurement of ambient noise was conducted at worst case night time minimum conditions. This allowed SFMI to determine whether or not the worst case noise emissions would ever exceed worst case background noise levels by more than an amount allowed within Palo Alto standards.

Client: City of Palo Alto - Utilities Department

• Maybell Substation, Community Noise Study, City of Palo Alto, California

Monitoring of four existing transformers, two serving residential and two serving commercial uses, each having separate peak usage hours to determine if either peak commercial or residential transformer emissions exceed the worst case ambient.

Client: City of Palo Alto - Utilities Department