New ideas in industrial lighting, translated
into modern equipment design, backed
technically by a nationwide sales force,
available worldwide through knowledgeable
electrical distributors – these are some of the
reasons you’ll be light-years ahead when you
look to Cooper Crouse-Hinds for industrial
lighting products.
This Lighting Selector Guide will help you
solve many of your lighting problems. For
additional assistance on complex projects,
call your Cooper Crouse-Hinds
representative or distributor. They can
provide detailed lighting layouts and
recommendations using the most advanced
computer and application engineering
facilities and techniques.
Industrial Lighting Products
Lighting Selector Guide
Below is a simple five-step procedure to help
you select the right equipment for a specific
job. Typical examples – with illustrations,
easy-to-read charts, and layouts – are
included to ensure correct results.
The five steps are:
1.) Determine Area
Lighting Needs
and Operational
Factors
Page 665
2.) Select
Type of Lamp
Page 666
3.) Select
Type of
Luminaire
Page 668
4.) Calculate
Number of
Luminaires
Required
Page 683
When known,
proceed to Step 2
When known,
proceed to Step 3
When known,
proceed to Step 4
When several light
sources or systems
seem suitable,
determine most
economical one
With LuxiconTMyou’ll be able to make
‘light’ work of analyzing the performance
of Cooper Crouse-Hinds broad line of
industrial luminaires.
From exterior/interior layouts to economic
performance data, you’ll be able to access
and evaluate information needed to design
and specify the most efficient and effective
lighting system possible.
TM
Luxicon
ɀ Online tutorial
ɀ Color output, either text or graphics
ɀ Exterior/interior layouts in one program
ɀ Daylight lighting analysis
ɀ Importing/exporting of any IES file
ɀ Importing/exporting of any .DXF CAD file
ɀ Detailed architectural feature calculations
ɀ Entire Cooper Crouse-Hinds and Cooper
Lighting line search
ɀ Economic performance/analysis
calculations
ɀ Database of customers and their projects
ɀ Professional output including summary
reports, luminaire schedules, calculation
results and renderings on multiple pages
ɀ Luminaire editing capabilities
ɀ Allowances of varying ambient temperature
levels
offers:
5.) Determine
Placement of
Luminaires and
Make Layout
Page 688
Determine Area Lighting Needs and Operational Factors
L
The selection of the proper luminaire/lamp
combination and the determination of the
number of luminaires required is a function of
the desired quantity and quality of light
required, together with consideration of any
special factors arising from the nature of the
work operation.
Several aspects of this selection process are
discussed below. The conditions will vary
from job to job. It is important to consider
these conditions if the lighting system is to
yield optimum results.
A) Determine Illumination Quantity
Required
The Illuminating Engineering Society in the
current IES Lighting Handbook gives a
comprehensive listing of footcandle levels
recommended for all types of Industrial
Lighting. A condensed version of this listing is
given in Table I and is presented according to
the types of visual tasks encountered.
B) Determine Illumination Quality Required
Quality of illumination pertains to the
distribution of brightness in the visual
environment. Care must be taken to avoid
discomforting glare within the normal visual
field.
Luminaires normally selected for lower
mounting should be designed to limit
brightness below the 45° zone.
C) National Electric Code Compliance
The National Electric Code delineates some
areas as hazardous, depending on materials
or atmosphere within an area. The choice of
luminaire and lamp is therefore somewhat
restricted if the area is classified as
hazardous.
In hazardous areas, luminaire design and
operating temperature of both luminaire and
lamp must meet strict limitations. These
limitations are detailed under Step 3 of this
selection guide.
Table 1 / Recommended Levels of Illuminance
Seeing TaskTypical Type of Work
DifficultDifficult assembly and
inspection, color coding, paper
manufacturing (Inspection and
Rewinder) finishing operations.
ModerateModerately difficult assembly
and inspection, checking and
sorting, service garage repair
areas, medium bench work,
instrument panel (vertical
illumination).
CasualSimple assembly, rough bench
work, grinding, simple
inspection, wrapping, packing
and labeling, control house
general lighting.
NOTE: For other industrial footcandle levels such as petrochemical, refer to the Illuminating
Engineering Society’s Lighting Handbook (Application Volume) for more information.
Illuminance
CategoryFootcandles†
F100 to 200
E50 to 100
D20 to 50
C10 to 20
If the area is non-hazardous in nature, the
selection of the proper luminaire and lamp is
less restrictive and should be based on
general operational and environmental
conditions.
D) Maintenance Considerations
In order to insure optimum performance of
the lighting system at a reasonable cost,
some of the following related factors must be
introduced into the selection process:
ɀ Atmospheric Conditions: Luminaires for use
in extremely wet locations should be
enclosed and gasketed.
Luminaires for use in extremely dirty
locations should provide a minimum of light
depreciation under the anticipated
maintenance schedule (i.e., reflector with
open top and bottom should be used where
maintenance is infrequent). Luminaires for
use in extremely corrosive atmospheres
should have protection for the optical system
and have finishes to withstand the particular
corrosive agent (i.e., epoxy power finish;
enclosed Alzak reflector; Krydon
reinforced polyester reflector).
ɀ Accessibility: Since it may be necessary to
locate luminaires in inaccessible areas, the
luminaire and lamp selected should minimize
need for maintenance and maximize ease of
maintenance when required (i.e., high bay
open reflector with mercury lamp).
ɀ Area Usage: The selection of the proper
lamp/luminaire combination will depend
greatly on the required burning hours per
year. The anticipated usage should be a
major factor in lamp selection.
Values recommended are average maintained footcandles
After identification of the factors discussed in
Step 1, the following guide can be used in
selecting the proper lamp:
A) Illumination Level
High (30FC or more): high intensity
discharge (H.I.D.) lamps are generally the
most economic choice.
ɀ Exception: where luminaires must be
placed within an operator’s normal visual
span, a low brightness light source such as
fluorescent should be used.
Low (less than 30FC): all light sources can be
considered. Selection of best lamp is usually
based on other factors.
ɀ Exception: at medium to high mounting,
high intensity discharge is generally best.
B) National Electrical Code
Hazardous locations – all light sources can
be considered.
ɀ Exception: Article 500 of the National
Electrical Code classifies the various
categories of hazardous locations and
provides general rules for the application of
luminaires in these areas. (See Step 3 of
Selection Guide.)
ɀ Exception: where process must be shut
down for relamping, high intensity discharge
is best due to long lamp life. Non-hazardous
locations – all light sources.
®
C) Accessibility
High intensity discharge lamps should be
used where luminaires are relatively
inaccessible because of long life and the
need for infrequent relamping.
D) Area Usage (Burning Hours)
At more than 2,000 burning hours per year,
high intensity discharge and fluorescent
lamps generally yield the lowest system cost.
At less than 2,000 hours per year,
incandescent may be the best system
depending on the size of the area, mounting
height and illumination level required.
E) Other Considerations
ɀ Energy cost: where energy cost is high,
high intensity discharge lamps generally
prove most economical. H.I.D. lamps
produce more lumens per watt of electricity
than other lamp types.
ɀ Safety: due to warmup and restart
characteristics of high intensity discharge
lamps, auxiliary or emergency lighting should
be used in critical areas.
The following table of lamp characteristics
provides guidelines for choosing the best
lamp. If the decision is not obvious, contact
your Cooper Crouse-Hinds representative for
a computer analysis of the option desired.
Table II/Lamp Characteristics
LampAdvantagesDisadvantages
L
1.InductionExceptionally long life – 100,000 hours.
Instant illumination upon start-up or warm
restart. Crisp, white light >80 color rending
index. Low operating cost.
2.High Pressure SodiumGood beam control. Long lamp life (24,000
hrs). Highest lamp output (lumens per watt).
Low operating cost. Shortest restart time of
H.I.D. lamps (instant with optional instant
restrike).
3.Metal Halide
Pulse Start
Improved lamp life (15,000- 30,000 hrs).
Increased lumen output over standard
metal halide (25 to 50%). Better lumen
maintenance (80%). Superior cold starting
-40°C. Improved color stability. Color shift
reduced by two-thirds. Improved lamp-tolamp color consistency. Warm up time 2
minutes. Restrike time 3-4 minutes.
4.Metal HalideModerately long lamp life (7500 + hrs).
High light output (lumens per watt). Makes
colors look close to natural. Low operating
cost.
5.MercuryLong lamp life (24,000 hrs). High light
output per watt. Low operating cost.
Initial cost is higher than HID type luminaires.
High initial cost. Requires warmup period.
High initial cost. Requires warmup period. Does
not restart immediately after power outage.
High initial cost. Requires warmup period. Does
not restart immediately after power outage.
High initial cost. Requires warmup period. Does
not restart immediately after power outage.
6.FluorescentLong lamp life (7500-24,000 hrs). High light
output per watt. Low operating cost. Low
brightness. Cool operation.
7.IncandescentLow initial cost. Good color rendition. Good
High initial cost. Poor light control. Output may
vary with ambient temperature.
Low light output (lumens per watt), short lamp life
(500-2000 hrs). High operating cost.
667
L
Industrial Lighting Products
3
Select Type of Luminaire
Choice of Reflector
The following list gives broad guidelines for selection of the proper reflectors.
Mounting Height
Above FloorReflector
Up to 19′Dome
20′ or moreHigh bay
Where low footcandle levels will be provided, reflectors may be used at higher mounting heights than shown; where high footcandle levels will be
provided, reflectors may be used at lower mounting heights than shown in the table.
Quick Selector (Environment—Product)
Opposite the industrial environments listed below are the luminaires designed and approved to meet the requirements unique to each
environment. Where different types of light sources might be used, a choice is given.
EnvironmentTypeDescriptionCat. Sect.Pg. #
CorrosiveNon Metallic
Explosive Vapors
(Class I, Div. 1)
Combustible Dusts
(Class II, Div. 1)
Moisture, Non-Combustible Dusts,
or Potential for Hazardous Vapors
Class I,
Div. 2