Dialight Corporation

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Dialight Corporation BOS-CON, Sept 12th
Obstruction Lighting Basics
Incandescent
Strobe
LED
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Your speaker.

• Doug Woehler / Dialight Corporation
• Prior 1984 Living large
• 1984-1991 USMC-Camp Pendleton, CA
• 1991-1994 Hali-Brite (Electrical Tech)
• 1994-1994 Concordia University -Crosby, MN
• 1994-2000 HP/Honeywell (Sales Manager)
  Seattle, WA
• Aircraft (GPS) Landing systems
• Airport Lighting
• Obstruction lighting
• 2000-2006 Dialight (Product Development Mgr.)
• Obstruction Lighting
• Hazloc (explosion proof)
• Rail Lighting

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Overview of presentation

• Purpose of Obstruction Lighting
• History, Regulations, Specifications
• Lighting Systems Configurations and Types
• Lighting Technologies
• LED Technology Overview
• LED Challenges and Concerns
• Manufacturer responsibility
• Controllers Alarms
• Recommended maintenance procedures
• Question and answers

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Purpose of Obstruction Lighting
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History

• The Evolution of Tower Lighting
• - Red Code Beacon (300mm) and sidelights
• - White Strobe, High Intensity
• - White Strobe, Medium Intensity
• - Red/White Dual Strobe, Medium Intensity
• - Red LED Sidelight
• - Red LED Beacon, Medium Intensity

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Lighting Regulations / Certifications

• - FAA Advisory Circular 70/7460-1
• Obstruction Marking and Lighting
• FAA Advisory Circular 150/5345-43 Specification
  for Obstruction Lighting Equipment
• FAA Engineering Brief 67
• - FCC Part 17
• - ICAO Annex 14
• - VAP Draft Specification
• - Transport Canada CAR 621.19 (formerly TP-382E)
• - Secretary Communications-Mexico
• IEC Draft

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FAA Tower Lighting Configurations

• Red lighting/paint is an option for any height
  tower for daytime marking.
• Medium Intensity white lighting may be used in
  lieu of paint on structures up to 500 tall.
• High Intensity white lighting may be used in lieu
  of paint on structures over 500 tall.

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FAA System Configurations
TYPE A Red Lighting System

TYPE B High Intensity White
TYPE C High Intensity White with
AOLs (on appurtenance)
TYPE D Medium Intensity White
TYPE E Dual Lighting System Red / White
Medium Intensity
TYPE F Dual Lighting System Red / High
Intensity White Dual RED/White Medium Intensity
Beacon on Appurtenance Over 40 Tall
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Red Lighting Systems

• Day Aviation orange and white paint
• Night/Twilight Flashing red beacons steady
  burning obstruction lights (2000 candela
• and 32 candela)
• Light Sources Incandescent, Strobe and LED
• Advantages Least complex lighting system
• Relatively low purchase price
• Disadvantages Painting increases life cycle cost
  

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Flashing Red Beacons

• FAA Designations L-864 Beacon
• ICAO Designation Medium Intensity Red
  Light
• Industry Jargon Red Beacon, 300mm
  Beacon, 864

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Steady Burning Obstruction Lights

• FAA Designation L-810
• ICAO Designation Low Intensity Light
• Industry Jargon Sidelight, Steady-Burner,
  OBs, Marker Light, L-810

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Medium Intensity White only Lighting

• Day/Twilight 20,000 candela white
• Night 2,000 candela white -no sidelights
  required
• Advantages No painting required
• Less expensive than dual lighting
• Disadvantages White strobes at night can
• irritate neighbors, High voltage, High
  tech components can mean expensive
  maintenance
• Light Sources Xenon gas strobe tubes

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Medium Intensity Strobes

• FAA Designation L-865
• ICAO Designation Medium Intensity White Light
• Industry Jargon Medium Intensity Strobe, White
  Strobe

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Medium Intensity Dual Strobe Systems

• Day/Twilight 20,000 candela white
• Night Flashing red strobe steady burning
  obstruction lights (2000 candela and 32
  candela)
• Light Sources Xenon gas strobe tubes
• Advantages No painting required, strobes
  brighter
• Efficient light source
• Disadvantages High voltage, High tech
  components can mean expensive maintenance

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Medium Intensity Dual Strobes

• FAA Designation L-864 / L-865
• ICAO Designation Medium Intensity Dual
  Light
• Industry Jargon Dual Strobe

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High Intensity Strobe Systems

• Day 200,000 candela white
• Twilight 20,000 candela white
• Night 2,000 candela white
• Advantages No painting required
• Less expensive than dual lighting
• Disadvantages White strobe at night can
• irritate neighbors, very expensive to
  maintain

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High Intensity Strobes

• FAA Designation L-856 for tall structures
• ICAO Designation High Intensity White Light
• Industry Jargon High Intensity
  Strobe

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Light Sources

• What are the options whats the best?
• - Incandescent
• - Strobe
• - LED

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Incandescent Light Sources

• Advantages
• Lowest up front cost
• Numerous distribution sources
• Fairly resilient to lightning
• Plug and play to most broadcast towers
• Disadvantage
• Short lamp life, high reoccurring costs
• Frequent maintenance
• Susceptible to vibration damage
• Extremely inefficient, Consumes lots of power
• Light Pollution, ground effects!

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Strobe / Xenon gas Light Sources

• Advantages -Longer life technology than
  incandescent.
• -Efficient power consumption
• -Numerous distribution sources
• Disadvantage -Large upfront costs
• -Proprietary replacement technology
• -New electrical infrastructure
• -Limited lamp life, depending on design
• -EMI / RF issues and ozone release
• -Expensive High Voltage replacement
  components
• -Expensive maintenance costs
• - Light Pollution, ground effects!

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Light Emitting Diodes!

• LED obstruction lighting
• Advantages
• Lowest cost of ownership
• Plug and play with existing infrastructure,
  120VAC
• Solid State, extremely robust ad reliable,
  impervious to shock/vibration.
• Extremely energy efficient power consumption. 48
  Watt beacon
• Precision optics. Warranted performance!
• No EMI created or susceptibility
• Not prone to damage from surge/lighting.
• Numerous distribution sources
• Disadvantages
• Reputable manufacturer with extreme knowledge of
  LED based products is a must!

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LEDs (Light emitting diodes)

• Development timeline
• -60s 70s calculators and watches
• -80s Interior uses such as panels, PCs
• -90s Traffic Intersections Brake lights
• -2000 Obstruction, railroad, aircraft,
• -2005 - UL, Class 1 Div 2 area white lighting
• -Today and beyond General illumination!

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Making the transition..

• Going from a light bulb to a light engine
• Generally, a single LED cannot replace a single
  light bulb
• A Light Engine is required

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A revolution in lightingLEDs

Light Emitting Diodes
High Pressure Sodium
Metal Halide
Luminous Efficiency (lumens/watt)
Mercury Vapor
Shaped Reflectors
Tungsten Halogen
Conventional Incandescent
1920
1940
1960
1980
2000
2020
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All LEDs are not the Same
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Use the Right Technology for the right job!
SnapLED
Through-Hole
Surface Mount
High Flux Surface Mount Technology
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5mm vs. High Flux performance Comparison
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LED performance is influenced by temperature
500 Candelas _at_ 25 O C
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LED degradation increases with current density
Current Densities
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Concerns and Challenges Defining End of Life?

• What is the difference between the end of life of
  an LED and that of a halogen or incandescent
  lamp?
• Incandescent/Halogen is catastrophicwhereas a
  LED light output degrades
• The question one should ask is
• What is the USEFUL LIFE or EFFECTIVE LIFE of an
  LED fixture?
• Completely dependent on many variables

100,000 hrs.
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Ultimate Solution Responsible Designs and
Manufacturer Warranties

• Manufacturers must take the lead to ensure that
  their products meet the minimum operational and
  intensity requirements at the end of the
  products warranty period!

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A side note.controller and monitoring systems

• Dialight DOES NOT manufacture controllers or
  produce lighting systems as our focus is on LED
  technology.
• We focus on upgrading / retrofitting existing
  lighting systems to LED based fixtures
• Installing new LED fixtures with the partnerships
  with the industry OEMs.
• Please contact the vendor of your choice or visit
  our website for a list of our existing
  distributors and OEM partners.

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Minimum Maintenance Procedures

• All technologies
• Clean exterior optical portions of fixture
• Inspect and verify controller failure modes by
  creating a fault
• Inspect conduit wiring for degraded connections
• Incandescent
• Ensure minimum of 120 VAC at lamp
• Inspect Gaskets Seals around Fresnel lenses
• Strobe Tube
• Inspect high voltage controller capacitors and
  trigger cards
• Inspect fixture wiring and terminals for
  corrosion (Ozone)
• Re-lamp tubes per manufactures warranty (2-3
  years)
• LED
• Re-lamp and install new gasket every 10-12 years
• Ensure 85 VAC at lamp

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Questions??
Dialight Corp 1501 Route 34 South Farmingdale, NJ
07727 732 -991-2837 www.dialight.com