Satco Products HID Lamps, Каталог

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HID Lamps Notes
119
HID lamps
HID Notes
„
= Product by a manufacturer other than Satco
S
= Product by one of the Primary lamp
manufacturers
ANSI Codes
All HID lamps and ballasts are identified by an ANSI
code. The purpose of these codes are to make sure
that the lamp from one manufacturer is properly
matched to any other manufacturers ballast, therefore
resulting in safe operation, and produce the designed
light output. Especially with the increasing complexities
of metal halide product offerings, it is very important
that the ballast and lamp ANSI codes are matched
before use. The most recent changes to the ANSI lamp
codes have added the E, S, and O letter designations.
For example, a 400 watt probe start metal halide
lamp will have an ANSI code of M59/E, M59/S, or M59/
O. This should be used only on a ballast with an ANSI
code of M59.
E - Lamps must be used in enclosed luminaires which
meet the requirements of UL1598.
S - Lamps are considered “suitable” for open
luminaire operation, only if operated in the vertical
±15° position. Lamps do not meet ANSI criteria for
containment and must be turned off at least once
per week for a minimum of 15 minutes if operated
continuously. In addition these lamps must be group
relamped before reaching rated lamp life.
O - Lamps can be operated in open or enclosed
luminaires within the manufacturer’s specified
operating position limits. This type meets the ANSI
criteria for containment rated operation. Special
exclusionary sockets are available for these lamps to
ensure that the wrong lamp type is not used.
Rated Life
The rated life of metal halide lamps is based on
the point when 50% of the lamps have burned out,
based on a burn cycle of 10 hours per start. Various
operating conditions affect lamp life. One key factor
is operating position. Lamps designated universal can
be operated in any position. However, life expectancy
and lumen output are sacrificed in certain positions.
Published “rated life” for universal lamps is based
on operation in the vertical position. “Rated life” for
universal lamps operated horizontally is 75% of the
published rating. Shorter operating cycles also severely
reduce life. At operating cycles shorter than 10 hours
per start, life will shorten as follows:
5 hrs per start: Life is approx. 75% of rating
2.5 hrs per start: Life is approx. 55% of rating
Initial Lumen Listings
Rated initial lumens are based on measurements at
100 hours of use, and are based on specified burning
position. The measures listed for universal position
lamps are based on a vertical burning position;
horizontal usage decreases the output by 25 to
30%. For specifics on any particular lamp, call Satco
customer service (800-43-SATCO).
Safety Warnings
It is the responsibility of the purchaser to read all safety
warnings on the lamp package before use. For more
information, call Satco customer service (800-43-SATCO).
Steps to choosing the correct Metal Halide lamp.
1) Determine the correct wattage.
2) Determine the base.
3) Choose the shape. ED and BT style lamps are generally interchangeable
4) Determine the correct size, some wattages come in multiple sizes. For example, 400w lamps are
standard ED37, but are also commonly available in an ED28 compact envelope.
5) Determine burning position, BU, BD, Vertical, Horizontal, or Universal.
6) Determine Pulse Start, or Probe Start. Pulse Start is standard on lower wattage lamps, (39 through 150 watts).
Probe Start is standard on higher wattage lamps, (175 through 1500 watts), however Pulse Start
technology is being used more and more on the higher wattages.
7) Determine whether the project is calling for the newer Ceramic Arc tube lamps. These lamps offer
higher color rendering, and Lumen Output than the more traditional Quartz Arc tube lamps.
8) Determine whether fixture requires an Open Rated (Protected) lamp, or an Enclose Rated lamp.
9) All Metal Halide lamps and ballasts are identified with an ANSI code. It is best to make sure that the
ANSI code matches between the ballast and lamp.