GSA Item SIN 871-3 Overview
Services offered under this SIN involve the translation
of a system (or subsystem, program, project, activity) concept into a
preliminary and detailed design
(engineering plans and specifications), performing risk identification/analysis/mitigation,
traceability, and then integrating the various components to produce
a working prototype or model of the system. Typical associated tasks
include,
but are not limited to computer-aided design, design studies and analysis,
high level detailed specification preparation, configuration management
and document control, fabrication, assembly and simulation, modeling,
training, privatization and outsourcing.
VitaTech's SIN 871-3 EMF-EMC Professional Engineering
Services
VitaTech Engineering provides specialized full-spectrum
(0 Hz - 300 GHz) professional electric and magnetic fields (EMF) and
electromagnetic
compatibility (EMC)
engineering consultation services in the areas of system design, engineering
and integration. VitaTech has extensive experience recording, reviewing and
interpreting EMF/EMC site survey/measurement data, shielding performance
testing (IEEE-STD-299), EMF/EMC standards/policies (including MIL-STD & NSA
compliance) and various EMF human exposure standards emanating or
radiating from:
-
Static DC EMF sources (geomagnetic, subways, MRIs, NMRs, etc.)
-
AC ELF (extremely low frequency) EMF sources (power lines & equipment)
-
VLF (very low frequency) and LF (low frequency) EMF sources (CRT
monitors)
-
RF (radiofrequency) EMF sources (mobile, marine, UHF/VHF, cell/PCS,
radar)
-
EMP (electromagnetic pulse) & HEMP (high-altitude electromagnetic
pulse)
-
PQ (power quality) electrical sources (harmonics, voltage/current
surges, etc.)
VitaTech translates EMF and EMC system design concepts and/or shielding
performance requirements into detailed engineering plans and specifications,
models the proposed system/shielding design, and implements EMF/EMC simulations
to evaluate the performance assessment and compliance objectives using
the following tools:
-
EMF simulations of electrical systems including transmission/distribution
lines, transformers, switchgears, busways, risers, conduits, panels,
subways/trains.
-
RF modeling of antenna patterns, electric field strength profiles
of marine, mobile, pagers/cellular/PCS, AM/FM, UHF/VHF, microwave & radar
antennas.
-
EMC measurement protocols & assessments in compliance with standards:
-
MIL-STDs-449, -461, -462, -463, -464, -1472, & -2169
-
MIL-HDBKs-235, -237, -240 & -454 & MIL-EP-1110-3-2
-
NSTISSAM TEMPEST/1-92, NSTISSAM TEMPEST/1-93
-
IEEE-STD-299 (replaced MIL-STD-285 for shielding performance
testing)
-
EMC performance in compliance with standards:
-
MIL-STDs-188-124 & -188-125 and MIL-HDBKs-419 & -423
-
NSA 65-5, NSA 65-6, NSA 73-2A & NSA 94-106
-
EMI/RFI threshold standards minimizing impact on electronic equipment,
telemetry & diagnostic systems, communication systems, computers & CRT
monitors, servers and IT networks, scientific research instruments,
etc.
-
EMF human exposure/risk assessment standards for government and
military personnel, contractors and visitors based upon: ACGHI, NCRP,
IRPA/INIRC, OSHA, WHO and the FCC OET Bulletin 65 Evaluating Compliance
with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic
Fields
-
IEEE, N.E.C. & N.E.S.C. electrical standards and Power Quality
(PQ) criteria
VitaTech provides a cost-performance analysis matrix of the project/program
based upon the various design criteria objectives and simulated performance
assessments. VitaTech integrates the various components with the required
EMF/EMC performance specifications to produce by fabrication and construction
a working prototype, model, partial- or fully-enclosed shielded room,
building or mobile unit as follows:
-
Magnetic Shields (0 Hz - 100 MHz up to -80 dB attenuation) - geomagnetic/static
and time-varying DC, AC ELF (electric power), VLF/LF (CRT's) to RF
-
Electric Field & RF Shields (0 Hz - 300 GHz up to -200 dB attenuation)
- geomagnetic/static DC, AC ELF (power), VLF/LF to RF/microwave and
higher
-
MRI, NMR, SQUID, Medical & Scientific Shielding Systems - high
performance
-
EMP/HEMP Hardening & Shields - optional light-weight aluminum
systems
-
SCIFs & TEMPEST Shields for buildings & special equipment
-
Active/Passive Magnetic Field Cancellation Systems - small & large
areas
-
Filtering Systems -- EMI/RFI, Harmonic and Zero-Sequence Systems
During the system design, engineering and integration of a project/program,
VitaTech maintains firm configuration and document controls, aggressively
manages subcontractors ensuring cost-containment, prepares and delivers
detailed engineering design packages with maintenance and operational
manuals, offers comprehensive on-site training programs and issues shielding
performance guarantee certificates when VitaTech designs, fabricates,
installs, constructs and tests shielding systems. |