Specifications

INTEGRATED AUDIO-VIDEO-CONTROL SYSTEMS
 BeverlyHillsCityHall–TelevisionProductionAVCSystemsUpgrade
 October15
th
,2012‐Page‐8
F. An air conditioning system shall be provided at all AVC (Audio Video & Control) equipment
locations. Each system shall be capable of dissipating the BTUs/Hr indicated in the AV
facility impact reports. The BTUs/Hr listed shall represent the heat produced by the AVC
equipment only and shall not include ambient room conditions. The air conditioning system
shall be able to maintain an environment where the temperature does not rise above 75°
Fahrenheit, and the relative humidity is below 75%.
G. All electrical transformers, breaker panels and lighting dimmers shall be a minimum of two
meters away from the equipment racks, preferably in another room.
H. All equipment specified shall operate on local electrical power standards (120 V AC 60 Hz)
unless otherwise noted.
I. The Video system requires a ground isolated type power system.
J. All AVC circuits shall be supplied from the same electrical panel. This panel shall derive its
power from an isolation transformer. The power panel shall not furnish power to any other
equipment.
K. Each AVC circuit shall have a ground and neutral conductor equal in size to the current
carrying conductor.
L. All conduits entering AVC Equipment Racks shall be electrically isolated from the rack.
M. It is standard practice in our industry that AV systems use isolation transformers and isolated
(technical) grounding to prevent interference from other systems installed in the facility.
Examples of this practice can be found at http://www.middleatlantic.com/power.htm.
N. It is standard practice that the isolation transformers are specified and designed into the
system by the Electrical Engineer (EE) based upon the estimated power loads provided and
supplied as part of the Facility Impact Estimated Power and Heat Load reports generated by
the AVC designer.
O. To maintain the highest quality presentation, Electrosonic recommends using an isolation
transformer and isolated ground between all AVC system outlets and the first breaker panel
after the transformer to prevent any potential electrical interference in the audio and video
systems. Without using a separately derived power source (transformer) for all AVC show
system racks and field equipment such as projectors, there is the potential for interference
from electric motors used in Window Treatments, Show Action Equipment (SAE), the HVAC
systems, or other subsystem electronics that we cannot be aware of at this time.
3.4 AV PANELS
A. AV Panels shall be black anodized aluminum brushed in the direction of the aluminum grain.
Lettering shall be 1/8” engraved with white paint fill. Panels with connectors that are not
square to the panel will not be accepted. The AV Contractor is responsible for submitting
scaled engineering drawings for all AV Panels prior to fabrication. P-Touch or similar non-
permanent labeling shall not be acceptable. Care shall be taken by the AV contractor that the
different requirements of surface mount panels versus flush mount panels shall be factored.
All flush mount panels shall be approximately ¼” larger all round than the related back box to
ensure a professional finished look.
3.5 OPERATION AND MAINTENANCE TRAINING
A. The AV Contractor shall properly instruct the Owner and other persons designated by the
Owner, in correct operation, maintenance and troubleshooting of the system. Prior to this
training session, a preliminary copy of the Operations and Maintenance Manual set must be
submitted to the Owner for use during the training session.