Download 3748 Electrical Guidelines 7694 Eng Draft

GUIDELINES FOR THE ELECTRICAL DESIGN OF
PERFORMANCE RELATED SYSTEMS
Draft
North Jutland House of Music
Aalborg, Denmark
3 September, 2004
Artec Report No. 7694
Artec Project No. 3748
Distribution:
Reinhardt Larsen, FMH
Finn Bloch, S-FoU
NORTH JUTLAND HOUSE OF MUSIC
AALBORG, DENMARK
DRAFT
GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
CONTENTS
1.
2.
3.
4.
INTRODUCTION......................................................................................................... 1
1.1.
General .........................................................................................................1
1.2.
Electrical systems discussed in this report ...................................................1
1.3.
Abbreviations used in this report .................................................................2
DESCRIPTIONS OF LIGHTING SYSTEMS........................................................... 3
2.1.
Production Lighting .....................................................................................3
2.2.
House Lighting.............................................................................................5
2.3.
Work Lighting ..............................................................................................6
2.4.
Running Lighting .........................................................................................6
2.5.
Cue Lighting ................................................................................................7
2.6.
Emergency Lighting.....................................................................................7
2.7.
Motorized Theatre Equipment .....................................................................7
ELECTRICAL REQUIREMENTS OF PERFORMANCE SYSTEMS ................. 9
3.1.
General .........................................................................................................9
3.2.
Production Lighting .....................................................................................9
3.3.
Motorized Theatre Equipment ...................................................................11
3.4.
Control Systems .........................................................................................11
3.5.
Temporary Performance Equipment – Company Switches .......................12
3.6.
Power for General Use ...............................................................................12
REQUIREMENTS OF SUPPORT SPACES ........................................................... 13
4.1 Lighting systems ..............................................................................................13
5.
FIRE ALARM SYSTEM ........................................................................................... 15
6.
DESIGN DEVELOPMENT DOCUMENTS ............................................................ 16
7.
CONTRACTOR RESPONSIBILITY TABLES PRELIMINARY
DRAFT ......................................................... ERROR! BOOKMARK NOT DEFINED.
8.
CONCLUSION ........................................................................................................... 17
REPORT NO. 7694
ARTEC CONSULTANTS INC
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NORTH JUTLAND HOUSE OF MUSIC
AALBORG, DENMARK
DRAFT
GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
1. Introduction
1.1. General
Facilities for the performing arts are among the most intricate of design and construction
projects. There are many overlapping and interrelated specialized theatrical production
systems that must be completely coordinated and integrated into the fabric of the
building. Additionally, there are stringent acoustical criteria that must be met. All of these
systems must comply with the applicable codes, rules, and regulations as interpreted by
the local authorities.
This report outlines important electrical design considerations for the Concert Hall, the
Recital Hall, the Rhythmic Hall and the Multi-Purpose Room at the Jutland House of
Music focusing on the performance related lighting systems and the motorized theater
equipment systems. The report defines the basic components of these systems and
describes the requirements of the systems that, once designed by Artec, will need to be
developed by the Electrical Engineer and incorporated into the project electrical
drawings. This document also outlines electrical system power and accommodation
requirements for the production lighting and theater equipment systems. The special
electrical requirements of some of the associated support spaces are also described.
Finally, the general areas of contractor responsibility are delineated.
1.2. Electrical systems discussed in this report
Performance venues typically contain the following electrical systems, which must
integrate with the building electrical system. These systems are described in detail in
following sections.
1. Production Lighting System
a. Concert Lighting
b. Theatrical / Special Events Lighting
c. Dimmer Rack Room
2. House Lighting
3. Work Lighting
4. Rehearsal Lighting
5. Running Lights
6. Motorized Theatre Equipment
REPORT NO. 7694
ARTEC CONSULTANTS INC
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NORTH JUTLAND HOUSE OF MUSIC
AALBORG, DENMARK
DRAFT
GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
1.3. Abbreviations used in this report
The following abbreviations are used throughout this report:
REPORT NO. 7694

LSCP – Lighting System Control Panel

LCP – Lighting Control Point

TSCP – Theatre System Control Point

MCP – Motor Control Point
ARTEC CONSULTANTS INC
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NORTH JUTLAND HOUSE OF MUSIC
AALBORG, DENMARK
DRAFT
GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
2. Descriptions of Lighting Systems
2.1. Production Lighting
2.1.1. Introduction
The production lighting system in the Concert Hall and the Recital
Hall will comprise a dedicated system for concert lighting (lighting
of the concert platforms) and a theatrical/special event lighting
system. The Rhythmic Hall and the Multipurpose Room systems
will comprise only a theatrical/special event lighting system.
2.1.2. Concert Lighting
The concert lighting system will provide approximately 1000 to
1500 lux of lighting for concerts. This level of illumination will
allow audience members to clearly see performers as well as to
provide sufficient score reading light to the musicians. Fairly steep
lighting angles will minimize shadows on scores and music stands
and generous overlap of lighting areas will create smooth even
illumination on all points of the concert platform.
The systems will be simple to operate and therefore will not
require extensive programming of the control console. This will
minimize the necessary set up time for concerts and help to
facilitate fast changeovers from performance to performance.
Lighting fixtures for concert lighting will be carefully selected and
fitted with lamps that are not noisy when controlled by electronic
dimmers. Every attempt will be made to maintain no discernable
noise in the room originating from lighting.
2.1.3. Theatrical / Special Events Lighting
This system allows users to create a unique lighting design for any
number of theatrical productions or special events. Using various
lighting locations, colors, and illumination levels, designers will
create looks or cues appropriate to the scene or activity being
presented. As there are likely to be many different looks
throughout a single performance flexibility is of the utmost
importance in the design of these systems.
Throughout the performance spaces will be numerous lighting
positions. Each will be located to provide the most useful angles to
the concert platform, stage or performance area. These positions
will be easily accessible to technicians.to allow focusing and
relamping. At each of the lighting positions there will be
production lighting circuit receptacles. This will allow portable
lighting fixtures to be mounted and powered at the lighting
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AALBORG, DENMARK
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GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
position. In the Concert Hall the design for moving acoustic
elements will mean that electrical power to the lighting fixtures
contained in the moving panels will be made by flexible multiconductor cables. .
Each receptacle in each of the dimming systems will be wired to an
individual dimmer module. This is termed “a dimmer per light”
system.
The dimmers are modular devices which are plugged into dimmer
racks. The dimmer racks and located in dedicated dimmer rooms.
The dimmers are controlled by a lighting control console which is
computer based. The lighting console plugs into control
receptacles in the Lighting System Control Panels (LSCP), located
at two or more points in each of the performance spaces.
Many lighting accessories (such as color changing devices, moving
lights, and special effects devices) require control from the lighting
control console as well. To accommodate these devices, there will
be a Lighting Control Point (LCP) located at many of the lighting
positions (usually adjacent to the lighting circuits). Such devices
receive their control signals through a dedicated network of control
wiring using an Ethernet based protocol.
Theatrical / special events lighting may also involve the use of
followspots. Followspots are manually operated lighting
instruments that supplement the fixed lighting and are used to
highlight a speaker or an event. Rach of the performance venues
will have dedicated followspot positions. The followspots have
their own dedicated source of power, they do not receive power
from the production lighting dimmers nor are they under the
control of the lighting control console.
2.1.4. Dimmer Rack Rooms
The dimmers racks for the production lighting system as well as
the remotely controlled switching devices required for control of
the work lighting, running lights, and cue lights in the performance
spaces will be located in dimmer rack rooms. The controls
required for the Ethernet system and any special auxiliary controls
required for Audience House Lighting systems will also be housed
in the dimmer rack rooms. Primary and emergency power
distribution for the dimmers and switching devices will also be
located in these dimmer rack rooms. The dimmer rack rooms must
be kept clear of all non-electrical services and must not be used for
routing ducts or piping, other than those for this system. As these
rooms are electrical closets, sprinklers should be avoided.
In order to assure the electronics in the dimmer racks are not
damaged, all work by other trades must be complete before the
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GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
dimmers are installed. In addition, because dimmers generate heat,
they must not be energized until the air conditioning in this room is
fully operational.
2.2. House Lighting
The House Lighting system will be designed by the architect, architectural
lighting designer and/or the electrical engineer, there are acoustic
requirements that must be considered: Fixtures requiring ballasts must not be
used.

All low voltage fixtures must have their transformers remotely
located outside of the performance space.

Fixtures must have lamps that are not noisy when controlled by
electronic dimmers.

All tungsten halogen fixtures should have an integral glass shield
for safety and filament noise containment.

To further reduce noise, the house lighting dimmers should be
loaded to 80% of capacity or higher, wherever possible.
Artec will review and comment on the architectural fixture schedule and the
circuiting schedule and will incorporate the required dimmers into the dimmer
bank schedules.
The house lighting fixtures are wired to dedicated dimmers in the dimmer room.
The house lighting dimmers are controlled by programmable preset controls. The
controls are located in each of the LSCPs. Separate House-Lighting control
points, at various locations throughout the performance spaces, particularly at
entry doors, will control certain house lights or groups of house lights.in a preset
arrangement. These controls are for partially illuminating the room and are not
the emergency or panic services required per code and specified by the electrical
engineer. The lighting control console may also be used to take control of any of
the House Lighting fixture circuits..
All the House Lighting Control panels transmit low voltage control signals to the
dimmer racks in the dimmer room Control wiring between the architectural
lighting control points and the dimmer room may, whenever practicable, use the
same pathways as those required for the production lighting control system.
REPORT NO. 7694
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NORTH JUTLAND HOUSE OF MUSIC
AALBORG, DENMARK
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GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
The house lighting system also includes exit, aisle, sound and light lock lighting
and other safety lighting, as required by code. In all systems the lowest wattage
lamps that provide the code required illumination should be used. Exit signs must
be line voltage incandescent fixtures; signs with ballasts must not be used. It is
important to control the light output of the exit signs to have minimum glare
towards audience members. Signs with fully illuminated translucent faces or with
integral down-lights should not be used where precise containment of the visual
impact is important, such as exits that are connected or adjacent to the stage or
concert platform.
Safety lighting typically consists of fixtures mounted on audience seating end
panels and fixtures recessed into step risers. Where step lights are used, they
should be located at every riser so that an exiting audience member can clearly
see all steps. All aisle lights and step lights should be fixtures with a 45° cutoff.
Wherever possible, these fixtures should not point toward the stage or platform.
All such fixtures should be line voltage fixtures. Low voltage aisle lights or step
lights must have their transformers located outside of the performance space.
Aisle step and exit lights are not to be placed on dimmers. Controls to turn them
on and off are to be located in each LSCP and in the location designated as the
position for the front of house manager.
2.3. Work Lighting
Tungsten halogen floodlights and fluorescent fixtures are used for nonperformance purposes: cleaning, setting the stage or platform, lighting setup,
sound editing, etc. The system must provide approximately 300 lux of light at the
stage and concert platform. Work lighting should be provided in the technical
support areas such as control rooms and backstage areas. The work lights are
controlled at the LSCPs and also by individual local switches in each control area.
The local switches should have white LED locators which are always on, so the
work light controls can be located in dark performance conditions.
2.4. Running Lighting
Running Lights are used to provide visibility in the technical support and work
areas during performances, without casting light onto the stage or platform or into
the audience. Running Light Fixtures will be line voltage and low wattage
incandescent lamps with blue lenses.
The running lights are wired to a dedicated remote controlled switching system
and are controlled at the LSCPs. and also by individual local switches adjacent to
the area requiring running lights.
All running lights that can be reached must have integral on/off switches. All
running lights at lower elevations in the backstage areas must be durable to
withstand accidental impacts from pieces of equipment.
REPORT NO. 7694
ARTEC CONSULTANTS INC
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NORTH JUTLAND HOUSE OF MUSIC
AALBORG, DENMARK
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GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
2.5. Cue Lighting
This system provides a visual cueing or signaling system operated from the stage
manager’s position with cueing points located at various positions within each
performance venue. The Stage Manager will have a panel with individual
switches controlling receptacles dedicated to the cue-light system. When needed
at a cueing point, a portable light will be plugged into the cue light receptacle.
2.6. Emergency Lighting
The Emergency Lighting system is the responsibility of the Electrical Engineer.
The following information is offered as a guideline recommendation only.
Artec prefers that the emergency lighting in the audience chamber is achieved by
assigning selected house lighting circuits for use in both normal and emergency
operation, rather than supplying separate emergency fixtures for this purpose.
The dual use of selected circuits for both normal and emergency use is through
transfer relays provided as part of the house lighting system. These relays are
electrically held to supply normal, dimmed power to the selected circuits, which
can then dim with the rest of the house lighting. When normal power fails, these
relays drop out and connect emergency power to the selected circuits so that they
provide sufficient light to evacuate the audience safely. Emergency work lighting
on the stage or platform and in the adjacent support and technical spaces is
achieved in the same fashion.
Supplying emergency power to house lighting and work lighting fixtures in this
fashion has important benefits. It ensures that control of all of the emergency
lighting fixtures is seamlessly integrated into the production lighting system under
normal conditions. It saves the installation of sepoerate emergency lighting
fixtures. It ensures that emergency lighting will operate in a fail-safe fashion
whenever normal power fails, independent of any of the production lighting
system control system.
2.7. Motorized Theatre Equipment
This system will include: motorized stage extension lift, motorized loudspeaker
array rigging, motorized “bomb bay” doors for loudspeaker arrays, motorized
rigging for a cyclorama truss, and motorized acoustic curtains. Motor power must
be supplied at each piece of equipment.
All motorized theatre equipment is controlled at a Theatre System Control Point
(TSCP), located at the central control location directly offstage. In addition, each
individual motor can be controlled at a Motor Control Panel (MCP) adjacent to
the drive unit for each device. The various devices will also require position
sensors, limit switches, slack line sensors or other sensors to ensure safe
operation. These sensors are wired to the appropriate MCP's via dedicated control
wires.
REPORT NO. 7694
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NORTH JUTLAND HOUSE OF MUSIC
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GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
Each MCP interfaces with the TSCP through low voltage control signals,
transmitted via small gauge control wires. All of this control wire must be run in a
dedicated wireway system. In general, control wiring must be in dedicated
wireway systems which do not contain any power wiring. It would also be
unusual to share control wireways between motor, lighting and sound and
communication systems.
REPORT NO. 7694
ARTEC CONSULTANTS INC
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GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
3. Electrical Requirements of Performance Systems
3.1. General
The incoming electrical supply to the building should be configured so that the
failure of a single transformer or protection device will not force the cancellation
of a performance or rehearsal.
In order to control noise and vibration in the performance space, transformers,
switch gear, and electrical distribution equipment must be placed in remote
locations. This may require longer than normal conduit runs and larger than
normal conductor sizes.
3.2. Production Lighting
3.2.1. General
Production lighting system dimmers require a 220/380-volt 3-phase 4-wire feed
with equipment ground conductors. This feed should come from a dedicated,
multi-tap, K13 rated transformer equipped with (4) 2.5% taps, (2) above and (2)
below nominal voltage.
Dimmers are typically supplied in racks of 48 dual-dimmer modules for a total of
96 dimmers each with a capacity of 2.5kw. Larger dimmer sizes, if employed,
will be single module dimmer units. Each dimmer rack requires at minimum a
200 amp, 3-phase feed from an individual disconnect switch or circuit breaker
located in the dimmer rack room. As the maximum possible connected load per
dimmer bank is 320 amps 3-phase, the Electrical Engineer must verify that local
electrical codes permit a diversity based upon a realistic schedule of connected
loads.
The maximum allowable fault current for each dimmer rack must be less than
100,000 AIC. Production lighting system dimmers are most commonly SCR
switching devices. Because SCR dimmer loads can cause ground fault interrupt
breakers to trip falsely, this type of circuit breaker must be avoided.
The large-inductor dimmers used to control filament noise in the production
lighting system fixtures may require up to 230 volts input at each dimmer to
produce a 220 volt output. The exact input voltage will depend on the particular
manufacturer chosen and the line loss and therefore cannot be precisely predicted.
Thus, it is necessary that a transformer secondary be provided with multiple taps
as indicated above. This transformer must be dedicated to the production lighting
system dimmers in order to avoid voltage harmonics in other systems.
REPORT NO. 7694
ARTEC CONSULTANTS INC
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NORTH JUTLAND HOUSE OF MUSIC
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GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
The production lighting system load will vary widely. Loads can, and will, go
from zero to full in one second or less. The random use of individual circuits or
groups of circuits prevents any phase balance from being maintained. As with any
SCR switching device, harmonic distortions will be present on each neutral. For
this reason, all neutrals should be over-sized.
Dimmer racks are generally designed to accept power feeds from below, and load
wiring from above. Outgoing load wires from the dimmer racks should be sized
to ensure that the voltage drop at the Production Lighting System receptacles does
not exceed 2% of the output voltage of the dimmer. Each load circuit must have
an individual neutral conductor in the same cable as the hot conductor. Artec will
issue specifications and drawings to identify conditions under which load wiring
can penetrate building slabs and wall partitions. Dimmer banks have fans which
emit noise and this noise must not be permitted to enter noise-critical areas of the
facility.
It is necessary to employ a vibration isolating hanger system for all wireways that
would otherwise be touching any building structure that would allow noise to
penetrate into noise critical areas. Wireways attached to walls should have an
insulating neoprene pad.
Where project conditions indicate the use of conduit, we recommend that n order
to prevent the rapidly changing production lighting system loads from inducing
vibrations in exposed metallic conduit, that the Electrical Engineer limit the
circuits in any individual conduit run within the auditorium or other noise critical
space to (6). Furthermore, it is necessary to wrap a neoprene pad around every
exposed conduit wherever it is clipped to, or otherwise touching, the building
structure. Note that it is not necessary to take these precautions with conduit that
is routed outside of the noise critical spaces.
Non-dimmed circuit applications, such as followspots, worklights, running lights,
cue lights and control consoles are not supplied from the dedicated K-13 voltage
transformer feeding the dimmer racks. As the design proceeds we will identify
whether the feed for the Production Lighting “Company Switches” will come as
an alternate feed from the K-13 dimmer bank transformer/s or from an
independent supply source.
3.2.2. Concert Hall
The Concert Hall production lighting system including the Concert Lighting
System dimmers will consist of three racks, each of 96 dimmers, each rack
supplied with a 200-ampere three phase feed. A separate House-Lighting
Dimmer cabinet will be supplied, capacity to be determined. .All equipment will
be located in a dedicated dimmer rack room with other dimming, switching, and
emergency transfer equipment for the Concert Hall.
3.2.3. Recital Hall, Multipurpose Room, Rhythmic Hall
The Recital Hall production lighting system including the Concert Lighting
System will consist of one rack of 96 dimmers, supplied with a 200-ampere three
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ARTEC CONSULTANTS INC
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NORTH JUTLAND HOUSE OF MUSIC
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GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
phase feed. A separate House Lighting Dimmer cabinet will be supplied, capacity
to be determined. All equipment will be located in a dedicated dimmer rack room,
with other dimming, switching ands emergency transfer equipment for the Recital
Hall.
The Recital Hall Dimmer Rack Room will also house the similar equipments
required for the Multipurpose Hall and the Rhythmic Hall.
The dimming for the Multipurpose Room will largely duplicate that for the
Recital Hall, consisting of one rack of 96 dimmers, 200-ampere feed, auxiliary
House Lighting cabinet and other required apparatus.
The dimming for the Rhythmic Hall will largely duplicate that for the Recital
Hall, consisting of one rack of 96 dimmers, 200-ampere feed, auxiliary House
Lighting cabinet and other required apparatus.
3.2.4. Followspots
Depending on the type, follow spots require either 1-phase or 3-phase electrical
service. The Follow Spotlights in the Multipurpose Room, Recital Hall and
Rhythmic Hall venues will use single-phase 220-volt power. To allow the use of
more powerful equipment in the Concert Hall, power will be distributed through
(2) sets of receptacles, one set providing single phase power at 220-volts and one
set providing three-phase 220/380 volts, at each followspot position.
3.3. Motorized Theatre Equipment
Motorized theatre equipment requires either single phase or 3-phase power
distributed to each motor. Each motor will require an adjacent disconnect switch.
The number and the sizes of these motors will be determined as the design of the
systems progresses. Artec will provide specific location and sizing information
for these and their disconnects as the design proceeds.
Motor control power for the theatre equipment motors will be derived from the
motor power disconnects and fed to the motor control points. The theatre systems
control position will also require two 1-phase 2-wire circuits with equipment
ground, fed from a panelboard adjacent to the stage or platform.
3.4. Control Systems
Control systems for the production lighting systems and motorized theatre
equipment require transient voltage surge protection. For the safety of these
control systems as well as that of the computers in use in administrative offices
and ticket sales locations, a building-wide uninterruptible power supply system is
recommended.
REPORT NO. 7694
ARTEC CONSULTANTS INC
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NORTH JUTLAND HOUSE OF MUSIC
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GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
3.5. Temporary Performance Equipment – Company Switches
Temporary performance related equipment requires power from special
disconnects known as company switches. These specialty disconnects are all
3-phase 4-wire with equipment ground conductor, rated at 50, 100, or 200-amp
depending on their intended function.
Each company switch must be equipped with: a lockable manual disconnect; 4
full sized bus bars for 3 phases and ground and a double-sized neutral bar. A
special female receptacle panel will be specified to allow outside presenters to
bring in their own dimming packages and simply “plug-in” to the Company
Switch. The disconnects, receptacles, and all other components used in every
company switch should be in compliance with all applicable codes and
regulations.
Artec will provide specific location and sizing information for these disconnects
as the design proceeds.
3.6. Power for General Use
General 220 volt power on the concert platforms and in the audience chamber
requires distribution devices in greater than normal numbers. Receptacles should
be distributed as double rather than single outlets. The number of outlets on a
single circuit should be limited to no more than 60% of code allowance. Artec
will provide recommendations for specific, critical locations for these receptacles
as the design proceeds.
We recommend that panelboards feeding any of the control rooms or projection
rooms should be located in those rooms. Similarly, the panelboards for the
Concert and Recital Hall platforms and support areas should be located
immediately adjacent to the platform. It is the intent to locate panelboards so that
in the case of a breaker being tripped, the fault can be remedied and the breaker
reset as immediately and conveniently as possible.
REPORT NO. 7694
ARTEC CONSULTANTS INC
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NORTH JUTLAND HOUSE OF MUSIC
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DESIGN OF PERFORMANCE RELATED SYSTEMS
4. Requirements of Support Spaces
4.1. Lighting systems
4.1.1. Lobby
Dimmers for lobby lighting will normally be located in a separate room from the
production lighting system dimmer racks. Lobby lighting is not controlled from
the LSCPs or any other performance related control positions. However, central
lobby lighting control points should be adjacent to the house manager's station.
Local control may be required in certain areas for meetings or parties and since
the Lobby has a small platform stage, additional controls and dimming should be
accommodated for this space.
Control of the architectural lighting in the lobby can be achieved with any one of
several proprietary architectural lighting control systems.
In addition to the architectural lighting, the lobby platform stage will require a
small scale special events/theatrical lighting system, to allow for creative lighting
of receptions, small performances and exhibitions. This system should consist of
theatrical lighting receptacles run to dimmers included in the lobby lighting
dimmer rack. Depending upon the scale of the system, it will likely be controlled
by a portable lighting control console. The console should have control plug-in
locations at the house manager's station and at remote stations. This console
should control all of the special events/theatrical lighting and the architectural
lighting in the lobby.
4.1.2. Dressing/Changing Rooms
Make-up lights are arranged around the top and sides of the mirror at each make
up station. The fixtures are typically supplied with incandescent lamps fitted with
metal guards to prevent any materials from touching the lamp. The make-up light
fixtures use 40 or 60 watt general service A-lamps. Each make-up station has its
own local switch activating a relay control. All of the make up light switches in
each room are ganged onto a master switch located outside the door to the room.
The master switch has an associated pilot light that is illuminated when any of
the mirror light switches are on.
At each dressing/makeup station there is a double convenience outlet to be used
for curling irons or other make-up needs. Each double outlet has its own local
relay-control switch, and as before, the individual switches are ganged onto a
master switch and pilot light assembly located outside the door.
In addition to make up lighting, locally switched overhead lighting is required in
all dressing rooms for general illumination
REPORT NO. 7694
ARTEC CONSULTANTS INC
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NORTH JUTLAND HOUSE OF MUSIC
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GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
4.1.3 Control Rooms, Projection Rooms, and Followspot Rooms
These rooms require dimmable, focusable track lighting over each operating
position. The control rooms are noise-critical spaces so the track lights in
those rooms, if low voltage, must use electronic transformers fed from a local
dimmer that minimizes filament hum. The track lights are locally controlled
and dimmed from within the room and are not controlled from any of the
LSCP panels. In addition, 300 lux of illumination is required in each room for
general work light. These control room fixtures are both locally switched.and
also controlled from the LSCP panels. They should be selected and positioned
to minimize glare on CRT screens and at equipment operator’s positions.
4.1.3. Technical and Assembly Areas
Technical areas, Assembly areas and work spaces are located adjacent to the
concert platforms and to staging areas. These spaces require 250 to 300 lux of
general illumination. If the rooms open to the visible view of the concert
platform or the audience chamber the control over the lighting fixtures should
be wired to the work lighting system, with local switches in each location and
also to controls located in the LSCP panels. If the rooms are light-locked
from platform or audience chamber then only local control switches need be
provided.
4.1.4. Emergency Lighting
Emergency lighting is to be provided in all the above areas
4.1.5. Loading Dock
The loading dock requires locally switched, swing arm truck dock fixtures, in
addition to a fluorescent and/or metal halide system for the receiving area. These
systems need only local control, and should not be wired to the work lighting
system.
REPORT NO. 7694
ARTEC CONSULTANTS INC
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NORTH JUTLAND HOUSE OF MUSIC
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DRAFT
GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
5. Fire Alarm System
The design of this system is the responsibility of the electrical engineer. The fire
alarm system should be a closed circuit system with the main indicator panel and
remote indication points at positions where responsible persons can take suitable
action.
The following suggestions are for guidance.
In order to avoid unnecessary evacuations and possible panic in the audience
chamber the system should be a two stage alarm. Upon activation by either
manual pull stations or automatic smoke and heat detectors an “Alert Condition”
should notify an authorized member of the building staff. After a brief delay an
Evacuate condition should trigger a building-wide alarm, unless overridden by the
authorized staff member.
The pull stations would be mounted at positions where staff are normally located
and the automatic detectors in areas which are not manned. It is important that
stage smoke and fog effects as well as the heat generated by production lighting
not trigger any automatic detectors. Stage smoke and fog effects often drift into
the audience area, therefore care must be taken in the selection of automatic
devices in the auditorium as well as over the platform and in the stage house.
The “Evacuate” alarm signal should be given by different methods in various
areas. Voice evacuation paging to all areas of the building should be included.
Stage management staff must be able to override evacuation paging to the
auditorium during performances. The fire alarm system should have automatic
emergency services call-out facilities for use when the premises are not fully
staffed.
REPORT NO. 7694
ARTEC CONSULTANTS INC
PAGE 15
NORTH JUTLAND HOUSE OF MUSIC
AALBORG, DENMARK
DRAFT
GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
6. Design Development Documents
During the Design Development phase of this project, Artec will provide additional
information to assist in the efficient development of the electrical design, including
electrical power requirements of each device, as well as the HVAC load requirements for
each area or room in which performance-related electrical equipment is used. A series of
drawings, included with that report, will contain the recommended one-line riser
diagrams for this project.
Electrical Accommodation Drawings will contain the specific location of power devices
for production lighting and theater equipment. The Electrical Accommodation Drawings
will also contain the specific location of production lighting and theater equipment
devices including receptacles, control points, disconnects, etc. AC power receptacles
and lighting control points shown on Artec’s Accommodation Drawings are for
coordination purposes only. It is the responsibility of the Electrical Engineer to
transfer this device information to the Electrical Drawings.
It will be the responsibility of the electrical engineer to design and specify the wireway
and conduit systems, electrical risers, wire size, and all electrical engineering aspects of
the lighting control and theatre equipment systems and their installation.
REPORT NO. 7694
ARTEC CONSULTANTS INC
PAGE 16
NORTH JUTLAND HOUSE OF MUSIC
AALBORG, DENMARK
DRAFT
GUIDELINES FOR THE ELECTRICAL
DESIGN OF PERFORMANCE RELATED SYSTEMS
7. Conclusion
This report introduces some of the many unique aspects of the electrical systems for
performing arts venues that must be incorporated into the overall electrical design. These
systems have acoustical, mechanical, and electrical design criteria that extend well
beyond normal construction practices. As part of our services Artec will be providing
detailed information, reports, and drawings that explain all these special considerations.
We will provide detailed guidelines of the design responsibilities for all of these systems
and will provide assistance in developing the best systems for the facility and
performance program.
END OF REPORT
REPORT NO. 7694
ARTEC CONSULTANTS INC
PAGE 17
Report Revised for Aalborg House of Music JER - Draft Copy 19 August, 2004
P:\3748 - Aalborg\Reports\Theater Planning\PL Systems\3748 Electrical Guidelines Rpt#7694.doc