Safe, durable and economical · its characteristics at rated voltage. The relative changes for gas filled incandescent lamps as the operating volt-age deviate from the rated voltage

Safe, durable and economicalSignal lamps that signal quality

Low-voltage halogen lamps ........................... P. 12

Because of their superiortechnology and excellent economy, low-voltage halogenlamps are among the most important lamps for traffic signalling equipment. Theselamps have been developedover the past few years tosuch an extent that their lifehas doubled. Now they onlyneed replacing on a two-yearcycle (life of around 16,000hours).

This has been made possibleby the various known benefitsof low-voltage design but inparticular by halogen techno-logy. The halogen cycle meansthat the life of the lamp can besignificantly increased whileretaining almost constant luminous flux over the entire life of the lamp.

2

Display and signal lamps and lamps for traffic light installations.Lamps that set standards.

Road and rail traffic light in-stallations are crucial to safety,which is why the lamps usedin these installations have tomeet such high demands. Reliability is obviously thenumber one priority. Economyalso has an important role toplay. These two factors are influenced to a large extent bythe quality of the lamps used.OSRAM offers a range oflamps that sets standards interms of safety and also interms of economy.

You can rely on renowned OSRAM quality to provide thefollowing, to name a few:– High luminous flux for good

signalling effect even in difficult weather conditions

– Precise lamp alignment and shape for correct luminous intensity distribution

– Standardised high-quality bases that enable lamps to be replaced without the need for realignment even after many hours of operation

– Low maintenance costs thanks to long lamp life

– Low power consumption thanks to high luminous efficacy.

The existing range will bemaintained and further developed to meet changingcustomer requirements. LONGLIFE versions are nowavailable in almost all signallamp groups.

Lamps for fibre-optic sig-nalling installations ..... P. 13

OSRAM has developed SIRIUS® dichroic reflectorlamps specifically for use in fibreoptic matrix displays for variable traffic control. Themajor benefits of these lampsinclude optimum adjustment,high luminous intensity, longlamp life, high-quality reflectorand corrosion and heat-resis-tant connecting cables.

16,000 h

3

Low-voltage overpressurelamps ...................... P. 14/18

10V technology has becomethe established technology inmodern traffic light installa-tions, and for good reason.Low-voltage overpressure signal lamps have a much higher luminous efficacy thanmains voltage signal lamps.This means that low-voltageoverpressure lamps with sig-nificantly lower wattages canoften be used, with a resultantreduction in the power con-sumption of the signallingequipment. This lamp techno-

logy is also used in rail traffic light installations (see p. 18).Existing 230V signal installa-tions can be converted to 10Vsystems by replacing the lampand the reflector and installinga transformer. OSRAM has also developed LONGLIFEversions of low-voltage over-pressure lamps. By using thenew LONGLIFE low-voltageoverpressure lamps it is possi-ble to extend the maintenancecycle to a maximum of oneyear.

Signal lamps for mains voltage ......................... P. 16

Most traffic light installationsthroughout Europe are stilloperated on mains voltage.OSRAM has therefore devel-oped the tried and trustedstandard and krypton signallamps into LONGLIFE signallamps. These can be used as direct replacements for existing standard and kryptonlamps without having to modify the installations in anyway. Maintenance cycles areconsiderably extended as a result. Depending on the

installation, maintenance cycles of up to eight monthsare possible, which help enormously in reducing maintenance costs.

4

OSRAM signal lamps for roadand rail traffic light installa-tions are precision lamps whichare manufactured in largenumbers. A comprehensiverange of quality assurancemeasures during manufactureensures that these lamps areof consistently high quality.

Users are interested only inthe period of time in which thelamps can be used economi-cally. In other words they arelooking for the maximum pos-sible time in which the inevi-table early failures remain below a certain threshold. This period of time differs fromone type of lamp to anotherand is defined as the individ-ual lamp life:

Individual lamp life: The timeduring which a lamp remainsfunctional when tested understandard operating conditions(see DIN 49842 Part 3).

Individual lamp life up to afailure rate of x%: The periodof time during which x% of thelamps reach the end of theirindividual lamp life (see [1] inthe graph).

Example: In the case of LONGLIFE mains voltage signal lamps, the failure rate in the first 5,500 hours of operation is no more than 2%.

Lamp life

Average lamp life: This is thearithmetic average of all indi-vidual lamp lives of a numberof lamps tested under stan-dard operating conditions (see[2] in the graph).

Example: In the case of LONGLIFE mains voltage signal lamps, the failure rate in the first 14,000 hours ofoperation is no more than50%.

In most cases it is uneconomi-cal to exploit the full averagelamp life since individual re-placement costs are often outof proportion to lamp costs.

OSRAM builds on quality

The technical conditions ofsupply specified for the individ-ual lamp categories containadditional technical informa-tion on limit values, test con-ditions and references to the“Acceptable Quality Levels(AQL values)” based on the rules of statistical quality con-trol and in accordance withthe guidelines of the DeutscheGesellschaft für Qualität e. V.(German Quality Society)(DGQ). The technical condi-tions of supply are availablefrom OSRAM on request. Theentire manufacturing processat OSRAM is accompanied bya comprehensive system oftests and inspections. Qualityassurance begins at the devel-opment stage and with thepurchase of raw materials andcontinues through all stages of production up to final in-spection and dispatch to thecustomer. OSRAM developsand manufactures in com-pliance with the requirementsof the ISO 9001 standard.

Zone of economicalservice life

50

100

x

Hours burned [1]Individual lamp life

[2] Average lamp life

Lam

p fa

ilure

s in

%

Lamp life

For signal lamps for road traffic light installations, ourwarranty conditions are based on the DIN 49842 standard,Parts 1 to 3.

All the values listed are ratedvalues. The lamps must be installed only in the burningpositions specified. Any otherburning positions will lead topremature failure of the lamps.

5

When an incandescent lamp is operated at voltages withina given range the characteris-tics of the lamp will changeexponentially compared withits characteristics at rated voltage. The relative changesfor gas filled incandescentlamps as the operating volt-age deviate from the rated voltage are shown for the following characteristics (Fig. 1):

– Luminous flux Ø– Luminous efficacy n– Electrical power P– Lamp current l– Colour temperature Tf, Tn

– Lamp life L

Note that the lamps becomeless and less economical asthe voltage drops. The rela-tionship between power consumed and luminous fluxproduced gets progressivelyworse.

The theoretical average lamplife is of no significance in actual practice. Because ofthe changes that take placewithin the lamp due to thephysical processes involved,especially in the filament wire,any theoretical increase inlamp life cannot be achievedin practice. In particular, theproportion of early failures isnot reduced by any significantamount.

The tungsten halogen cycle is such that it operates most effectively at rated voltage.For this reason, the expectedincrease in lamp life in the range between 90 and 95% of rated voltage is not as highas with standard incandescentlamps (low-voltage over-pressure) (Fig. 2).

Operational characteristics at undervoltage

1,000

500400

300

200

100

90

80

70

60

50

4080 85 90 95 100

200

180

160

140

120

10080605040

30

20

10105 110 115 120

Rela

tive

oper

atin

g va

lues

in %

Operating voltage as a percentage of rated voltage

Colour temperature

Lamp life

Lamp life

Current

Power input

Luminous efficacy

Lumino

us flu

x

400

300

200

150

100

90

7090 95 100

140

130

120

110

100

80

60

40

25105 110

Rela

tive

oper

atin

g va

lues

in %

Operating voltage as a percentage of rated voltage

Colour temperature

Lamp life

Current

Power input

Luminous efficacy

Lumino

us flu

x80

105

Lamp life

Fig. 1: Operational characteristics of gas-filled lamps

Fig. 2: Operational characteristics of halogen lamps (referred to Lmax ≤ 1,000 h)

The graphs show average values for a large number of lamp types and cannot therefore be linked to any particular type or any individual lamp.

Changes to the lamp data due to undervoltageRated data Undervoltage

Voltage (V) 240 230 (-4.2%) 220 (-8.3%)Current input (mA) 270 265 (-1.9%) 255 (-5.6%)Wattage (W) 65 61 (-6.2%) 56 (-13.8%)Luminous flux (Im) 430 357 (-17.0%) 292 (-32.0%)Theor. average lamp life (h) 8,000 15,760 (+97.0%) 30,400 (+280.0%)

6

0 8,000 16,00012,0004,000

HV Standard SIG 1535 (235V/70W)HV Krypton SIG 1541 (235V/60W)HV Krypton LONGLIFE SIG 1541LL (235V/60W)

140,000

120,000

100,000

80,000

60,000

40,000

20,000

0

139,870 €

133,755 €4% savingscompared withHV Standard

82,871 €41% savingscompared withHV Standard

Oper

atin

g co

sts

in €

Hours burned

With its extensive product range, OSRAM offers manydifferent ways of reducing theoperating costs of signallinginstallations. In particular, considerable reductions inoperating costs can be achieved by using low-volt-age halogen lamps.

The elements that make upoperating costs for signallinginstallations are shown in Table 1.

Existing mains voltage signalinstallations can be convertedto low-voltage systems by replacing the lamps and re-flectors and installing a trans-former. Using low-voltage halogen lamps instead ofstandard mains voltage signallamps can reduce operatingcosts by up to 80% (= 114,000 €).

0

Oper

atin

g co

sts

in €

8,000 16,00012,0004,000

Low-voltage SIG 1238 (10/30W)Low-voltage LONGLIFE SIG 1238LL (10V/30W)Low-voltage halogen SIG 64033 (10V/30W)

90,000

80,000

70,000

60,000

50,000

40,000

20,000

0

10,000

30,000

88,502 €

47,725 €46% savingscompared withLV Standard

25,744 €71% savingscompared withLV Standard

Hours burned

Changing from standard mains voltage lamps tomains voltage kryptonLONGLIFE lamps canlead to savings of up to57,000 €!

Table 1

Changing from standard low-voltage lamps to innovative halogen signal lamps can lead to savings of up to62,700 €!

I. Sample calculation for mains voltage signal lamps:

II. Sample calculation for low-voltage signal lamps:

Economy: Reduction in operating costs in actual applications

Operating costs1) = Energy costs + lamp costs + replacement costsEnergy costs = (BD * Lz/3 * P * Sp)/1,000 BD = Hours burned (16,000 hours = life of the

halogen LV lamp)Lz = Number of lamps installed (1,008)Lz/3 = Only 1/3 of the lamps burn in the signalP = Power input of the lamp in WSp = Electricity price (€ 0.125/kWh)

Lamp costs = Lp * Lz * Wz Lp = Lamp priceWz = Number of lamp replacements within 16,000 hours

Replacement costs = Az * Wz * Wk Az = Number of installations = (for 12 signal lamps per installation = 84 installations)

Wk = Replacement costs (200 € per installation and replacement)

1) Other costs such as the purchase cost of the installation, cleaning costs, etc.have not been included! Values in brackets form the basis for the sample calculation

7

Advantages of different signal lamp technologies over standard mains voltage lamps

Mains voltage technology Advantages

Mains voltage krypton lamps:

– Unchanged LCL1)

– No modifications needed to the installation

– Krypton filler· High luminous efficacy· Impressive economy through energy savings· Long lamp life

– Narrow filament cradle diameter· Up to 24% more light

Low-voltage technology Advantages

10V overpressure lamp

Mains voltage transmitter needs upgrading. – Compact filamentReplacement of the lamp + reflector + transformer. · High optical efficiency

– Inert filler gas at overpressure· High luminous flux· High luminous efficacy· Impressive economy through energy savings· Impressive economy through long lamp life

– Thick filament wire· High resistance to shocks and vibrations

10V halogen lamp

Mains voltage transmitter needs upgrading. In addition to the advantages of the overpressure lamp because of:Replacement of the lamp + reflector + transformer.

– The halogen additive· Even higher luminous flux· Virtually constant luminous flux throughout the life of the lamp· Extremely long lamp life

1) LCL = light centre length

8

150

200

100

50

–20 –15 –5–10 0 +5 +10 +15 +20 –10 –5 0 +5 +10

Luminous intensity distribution horizontal vertical

Completely soiledDiffuser cleaned on the outsideDiffuser cleaned on the insideReflector cleanedNew lamp

Lum

inou

s in

tens

ity in

cd

Beam angle in degrees

Soiling of the internal and external surfaces of the sig-nalling optics is a major con-tributor to the loss of luminousintensity. Measurements havebeen taken on signallingequipment over a long periodof time. The diagrams belowshow the luminous intensitydistributions as an average ofall the measurements.

In this connection, note alsothe following from DIN 67527Part 1 Section 6 – Mainte-nance: “Cleaning and main-tenance should be carried out at intervals so that the minimum values* indicated in DIN EN 12368:2000-03, Table 1 are not undershot bymore than 20%. As a generalrule, it is more economical to carry out maintenance work at fixed intervals when all the lamps can be replacedand the signal lights cleaned.”* (for the luminous intensity)

Loss of luminous intensity due to soiling

Effect of soiling and bulb blackening on the signal luminous intensity of a mains voltage lamp

Effect of soiling and bulb blackening on the signal luminous intensity of a low-voltage lamp

150

200

100

50

–20 –15 –5–10 0 +5 +10 +15 +20 –10 –5 0 +5 +10

Luminous intensity distribution horizontal vertical

Completely soiledDiffuser cleaned on the outsideReflector cleaned on the insideNew lamp

Lum

inou

s in

tens

ity in

cd

Beam angle in degrees

9

Lamp technology: Loss of luminous flux due to bulb blackening

Fig. 4: Residual luminous flux for different signal lamps (HV/NV/HAL)

Fig. 3: Halogen lamp with halogen cycle

Fig. 2: Gas-filled lamp showing lamp life as a function of cold filler pressure and type of gas

Fig. 1: Vacuum lamps with tungsten vaporisation rate

To achieve a high level of optical efficiency (luminous efficacy) from an incandescentlamp the filament temperaturehas to be as high as possible.There are, however, limits tothe extent to which the fila-ment temperature can be raised as the rate at whichtungsten vaporises increasesrapidly as the temperature rises. The life of incandescentlamps is therefore reducedconsiderably as the filamenttemperature rises. What’s more, the vaporised tungstenatoms condense on the lampbulb, which produces a blackdeposit. This in turn results inloss of light due to absorption(Fig. 1). Ultimately, this meansthat the lamp has to be re-placed in order to comply withthe minimum values for lu-minous intensity.

Compared with a vacuumlamp (e. g. HV Standard) thevaporisation rate and thereforebulb blackening can be greatlyreduced by adding an inertgas (N2, Ar, Kr, Xe). As a resultof adding inert gas and the associated option of varyingthe filler pressure, the filamenttemperature can be increased,which in turn increases the luminous efficacy. With mainsvoltage krypton lamps, opticalefficiency can therefore be raised by as much as 60%compared with standard mainsvoltage lamps.

On the other hand, there is also the possibility of keepingthe filament temperature thesame and using inert gases toprolong the life of the lamps.The possible increases in lamplife depend to a large extenton the inert gas used (Fig. 2).The most effective inert gasesare very expensive however,so for reasons of economythere is no point in using thesegases for large bulb volumesand high filler pressures.

Bulb blackening was only effectively prevented with thedevelopment of the halogencycle (Fig. 3). The halogen cycle has reduced loss of lu-minous flux over the life of the lamp to such an extentthat signal lamps with verylong lives can now be pro-duced (Fig. 4). It has also enabled lamps with very com-pact bulb dimensions to bedeveloped. These small bulbvolumes make it economicallyviable to use expensive inertgases such as krypton and xenon at high filler pressures.This considerably reduces thevaporisation rate of tungsten,which in turn prolongs the life of the lamps comparedwith conventional low-voltagelamps.

10–3 gcm 2 s

10–5

10–7

10–9

10–11

10–13

4,0002,000 2,500 3,000 3,500

Tung

sten

vap

oris

atio

n ra

te

• W-Atomp < 107 mbar

Temperature

1,500

1,000

500

80 2 4 6

Lam

p lif

e in

h

• Tungsten

° Inert gas (N2, Ar, Kr, Xe) Cold filler pressure p in bar

2,000Xe

Kr

Ar

N2

• Tungsten atoms

° Halogen atoms• Inert gas atoms

Inert gases: N2 ,Ar, Kr, XeFiller pressure: 1 to 15 barHalogen concentration: 30 to 1,000 ppmBulb volume: 0.30 to 2,000 cmBulb temperature: 100 to 1,000°C

Luminous efficacy = const. H3 lamp 12V/55 W

Bulb blackening due to tungsten atoms

0

Lamp life in h

100

90

80

70

60

508,000 16,000

Lum

inou

s flu

x %

12,0004,000

SIG 64033SIG 1238LLSIG 1534

10

DIN-compliant operation

There is no disputing that sig-nalling installations that do notfunction properly constitute areal danger. Local authoritiesare under enormous financialpressure to make savingswherever they can. There is therefore a risk that main-tenance intervals for trafficlights will be extended be-yond the values prescribed inthe relevant standards.

The technical aspects and theresultant problems are oftenunderestimated, particularlythe consequences of morestringent product liability andthe duty of care towards roadusers. There is a risk of person-al liability if signalling instal-lations are not operated in accordance with the relevantstandards or if signal lampsthat do not comply with thesestandards are used.

Although DIN standards arenot laws of a binding charac-ter for the actual design of thesignalling installations, they dodefine the current productspecifications and are used bycourts of law to establish theappropriate safety levels forroad users and therefore thenature of the liability.

The most important informa-tion and data for road trafficlight installations and asso-ciated lamps are summarisedin the following standards:

DIN 49842 “Lamps for roadtraffic signals”

Part 1: Extra-low-voltagelamps for fixed signal lights;definition of technical design,and photometric data for low-voltage signal lamps.

Part 2: High-voltage lamps;definition of technical design,and photometric data for high-voltage signal lamps.

Part 3: Requirements andtesting; definition of require-ments and test criteria.

DIN 67527 Part 1 “Photo-metric properties of trafficsignal lights”

Part 1: Fixed road traffic signallights. Definition of optical requirements (including main-tenance threshold).

DIN 12368 “Signal lights”

Definition of technical require-ments of signal lights and theirtesting.

DIN/VDE 0832 “Road trafficsignalling installations”

This contains the require-ments for maintenance work.

The most important DIN standards

Like any branch of science ortechnology, lighting has itsown technical terms and stan-dardized units of measure-ment for evaluating lamps andluminaires. The most impor-tant of these are briefly des-cribed here.

Luminous efficacy (lm/W) =

Luminous intensity (cd) =

11

The most important photometric concepts

Luminous flux

Luminous efficacy

Luminous intensity

Polar diagram

Luminous fluxLuminous flux indicates howmuch light a lamp emits in alldirections. Unit of measure-ment: Lumen (lm).

Luminous efficacyLuminous efficacy defines theefficiency with which electricpower is converted into visiblelight, in other words how manylumens the lamp producesfrom each watt of electricalpower it consumes. Unit ofmeasurement: Lumen per watt(lm/W).

Luminous intensityLuminous intensity defines theamount of luminous flux emit-ted by a lamp or luminaire persolid angle ω (Greek: omega)in a particular direction. Unit ofmeasurement: Candela (cd).

By making the solid anglesmaller and smaller, we even-tually obtain the luminous intensity in one direction ofemission.

Polar diagramsThe luminous intensity valuesof a lamp or luminaire in various directions are plottedin polar diagrams. The lengthof the arrow between the lampor luminaire and the curve is a measure of the luminous intensity in that particular direction.

Generated luminous flux [lm]

Electrical power consumed (W)

Luminous flux in solid angle (lm)

Solid angle ω

Low-voltage tungsten-halogen lamps

The advantages of this seriesof lamps are as follows:– Particularly high luminous

flux

– Small dimensions– Almost point-like light source

for optimum focusing

– Virtually constant luminous flux throughout the life of the lamp

– Long lamp life

Halogen signal lamps for10V technology

Thanks to continual improve-ments, low-voltage halogenlamps now offer an excellentset of properties. Superior tech-nology and high production

quality combine to enable thelamps to be replaced on atwo-year cycle (lamp life ofaround 16,000 hours) for amaximum premature failurerate of 2% 3), which saves onmaintenance costs. Other benefits include high resis-

tance to shocks and vibrationsand a very high luminous effi-cacy that remains almost con-stant throughout the life of thelamp as halogen technologyprevents the bulb from black-ening. Their geometry, lumi-nous flux and electronic data

comply with existing stan-dards (DIN 49842 Parts 1 and 3), which means theselamps can be used in existinginstallations without the needfor upgrades or adjustments.

These low-voltage tungsten-halogen lampsare available for signal-ling equipment designedfor lamp supply voltagesof 10 or 12 V

1

12

Lamps for road traffic signalling equipment

Product reference Product numberHalogen signal lamps for 10V technology in installations to DIN 67527, Part 1 and DIN EN 12358SIG 64032 4050300402109 10.5 20 270 BA20s 12.5 65 31 1 40/200SIG 64033 4050300402123 10.5 30 400 BA20s 12.5 65 31 1 40/200

Product reference Product numberLow-voltage tungsten-halogen lampsSIG 64012/1 4050300244402 12 20 320 2,000 G4 9.0 31 19.5 1 100SIG 640144) 4050300222509 10 50 950 2,000 PKX22s 11.5 32 18 2 100SIG 64015 4050300217543 10 50 750 8,000 PKX22s 11.5 32 18 2 100SIG 64016 4050300837741 12 50 900 4,000 GY6,35-15 12.0 44 30 3 100PA 621655) 4050300224046 10 50 820 2,000 BA15d 11.5 50 26 4 100

1) The lamps must be installed only in the burning positions specified. Any other burning positions will lead to premature failure of the lamp. The abbreviations indicate the main burning position and the permitted angle in degrees. Main burning positions: s = standing (vertical), base down

2) LCL = light centre length (distance from the coil to top of base)

3) The premature failure rate is restricted to cases that are due to lamp faults and not to external influences

4) Particularly suitable for use in fibre-optic traffic signals5) Supplied on request6) Lamps with transverse filaments should only be inclined perpendicular to the filament plane* Average lamp life

Optimum lamp life.These 10V halogen signal lamps offer a 2-year replacement cycle

Permitted burning positions 1051)

Permitted burning positionp 90/151/6)

*

16,000 h2)

13

Product reference Product numberLow-voltage tungsten-halogen lamps with SIRIUS® dichroic reflectorSIG 64004 4050300245225 10 50 W 350 2,000 K23d 49.7 24.5 46.5 10.2 42 1 10SIG 64005 4050300282060 10 50 W 250 6,000 K23d 49.7 24.5 46.5 10.2 42 1 10SIG 640092) 4050300510309 10 39 W 210 6,000 K23d 49.7 24.5 46.5 10.2 42 1 10SIG 64002 4050300246505 12 20 W 120 2,000 K23d 49.7 24.5 46.5 10.2 42 1 10SIG 64002 B3) 4050300324562 12 1.67 A 120 2,000 KX23d 49.7 24.5 46.5 10.2 42 2 10

Low-voltage tungsten-halogen lamps with SIRIUS® dichroic reflector

The major benefits of SIRIUS®

dichroic reflector lamps in-clude optimum adjustment,high luminous intensity, longlamp life, high-quality reflectorand corrosion and heat-resis-

tant connecting cables. Thefollowing two wattages aremainly used:– 50 W for daylight operation,

possibly with reduced output at night

– 20 W for tunnels, multi-storey car parks and other dark areas, and for railway lighting installations.


2) Supplied on request3) For rail signals4) Measured behind the aperture of 10.2 mm Ø = W fibre bundle* Average lamp life

OSRAM SIRIUS® dichroicreflector lamps have been designed specifi-cally for use in fibre optic traffic signs (matrix displays)Permitted

burning positionp 90/151)

Operating instructions

All halogen signal lamps operate at high temperatureand pressure. They may therefore only be operated insignal equipment/luminairesspecially designed for the purpose. Make sure that thelamps are protected againstmoisture during operation and in particular during relamp-ing. When installing a newlamp, handle it by its protec-tive cardboard sleeve.

*4)

14

Low-voltage overpressurelamps for 10V systems

Low-voltage overpressure signal lamps have a much higher luminous efficacy thanhigh-voltage signal lamps.This is due to the higher gaspressure and the inert fillergas. The larger diameter of the tungsten wire of the low-voltage filament also helps increase efficiency. This means that low-voltage over-pressure lamps with signifi-cantly lower wattages can often be used, with a resultantreduction in the power con-sumption of the signallingequipment. The filament wireis more stable than in the HV lamp, which means thatresistance to shocks and vibration is particularly high.

The failure rate for standard 10V low-voltage overpressurelamps is less than 2% withinthe first 4,400 hours of opera-tion1).


These benefits can also be putto use in existing 230V signal-ling installations as it is pos-sible to convert mains voltageinstallations to 10V technol-ogy. The lamp and reflectorhave to be replaced and atransformer installed.

Low-voltage LONGLIFElamps for 10V systems

The old low-voltage signallamp has now been further developed into a LONGLIFElamp. With these lamps, a failure rate of 2% is not exceeded in the first 8,000hours1). With these lamps therefore the maintenance interval may be up to one year(depending on the installation).


2) Lamps with transverse filaments should only be inclined perpendicular to the filament plane



This means that the advantages of low-voltage technology are now available in mains voltage installations

Compared with high-voltage lamps, low-voltage overpressuresignal lamps have aconsiderably higher luminous efficacy. Thisis due to the higher gaspressure and the inertfiller gas

Product reference Product numberLow voltage for 10V technology in installations to DIN 67527, Part 1SIG 1227 4050300235028 10.5 22 270 BA20s 36 67 31 1 100/200SIG 1238 4050300253091 10.5 30 400 BA20s 36 67 31 1 100/200SIG 1259 4050300831770 10.5 45 600 BA20s 36 67 31 1 100/200Low voltage LONGLIFE for 10V technology in installations to DIN 67527, Part 1SIG 1227 LL 4050300900179 10.5 22 270 BA20s 36 67 31 1 100/200SIG 1238 LL 4050300790503 10.5 30 400 BA20s 36 67 31 1 100/200

Permitted burning positions 1352/3)

4)

Low-voltage overpressurelamps for 40V systems

The average lamp life is 8,000 hours. The lamps com-ply with DIN 49842 Parts 1and 3. The failure rate is lessthan 2% within the first 3,000 hours of operation1). Inother words, maintenance intervals will be around fourmonths (depending on the in-stallation).

Dual-coil lamps

The operational reliability ofdual-coil lamps is much higherthan that of single-coil lamps.If the main filament fails, it ispossible to switch to the sec-ondary filament. Availability of the installation is thereforeincreased. For safety reasons,however, it is recommendedthat the lamp be replaced as soon as possible. The dual-coil lamp is used mainlyfor the red signal.

15


2) Lamps with transverse filaments should only be inclined perpendicular to the filament plane



The compact coil ensures a high level of optical efficiency and a high axialluminous intensity; the inert gas fillingensures impressive economy

Product reference Product numberLow-voltage overpressure lamps for 40V systems, single-coil lampsSIG 1455 Ü 4050300832364 40 25 250 BA20d 36 67 31 1 100SIG 1462 Ü 4050300832326 40 40 500 BA20d 36 67 31 1 100SIG 1470 Ü 4050300832289 40 60 800 BA20d 36 67 31 1 100Dual-coil lampsSIG 1456 Ü 4050300832340 40 25/25 250 BA20d 36 67 31 2 100SIG 1463 Ü 4050300832302 40 40/40 500 BA20d 36 67 31 2 100SIG 1471 Ü 4050300832265 40 60/60 800 BA20d 36 67 31 2 100

Permitted burning positions 1352/3)1 2

4)

16

High-voltage krypton lamps

The majority of road trafficlight installations are still operated on a voltage of 220to 240V. For these systems,special lamps have been developed which meet thehigh requirements demandedof the signal optics. Mains voltage signal lamps are de-signed for an average lamp life


of 8,000 hours. However, thisis in no way an indication oftheir useful service life. Theyardstick for useful service lifeis the “individual lamp life” orpremature failure rate. In thecase of mains voltage signallamps, the failure rate in thefirst 3,000 hours of operation is no more than 2%1). In otherwords, maintenance intervalswill be around four months

(depending on the installation).The krypton inert-gas lampsconform to the specificationsof DIN 49842, Parts 2 and 3.This means that in modernsignal lights the luminous intensity values laid down in DIN 67527 Part 1 and DIN EN 12368 are met.

Product reference Product numberMains voltage krypton lamps for systems to DIN 67527, Part 1SIG 1541 4050300405070 235 60 420 E27 62 91 69 1 100SIG 1543 4050300032443 235 75 600 E27 62 91 69 1 100SIG 1546 4050300222608 235 100 840 E27 62 101 79 2 100

Product reference Product numberMains voltage LONGLIFE krypton lamps for systems to DIN 67527, Part 1SIG 1541 LL 4050300613642 235 60 380 E27 62 91 69 1 100SIG 1543 LL 4050300613666 235 75 540 E27 62 91 69 1 100SIG 1546 LL 4050300613680 235 100 780 E27 62 101 79 2 100



Mains voltage krypton lamps are used in systems that comply with DIN 67527, Part 1, and EN 12368

The advantages of high-voltage krypton lamps are asfollows:– Excellent optical efficiency

thanks to a small cradle diameter

– High luminous efficacy from krypton as the filler gas

– High resistance to shock and vibrations thanks to the nine supports for the filament

Mains voltage LONGLIFEkrypton lamps

We have managed to improveour tried and trusted mainsvoltage lamp technology evenfurther. Maintenance cyclesare longer with the new

LONGLIFE signal lamps. Depending on the system, these cycles may be up to eightmonths. Average lamp life is14,000 hours. Within the first5,500 hours of operation therewill be no more than 2% lampfailures1). The rated luminous

intensities defined in EN 12368 are achieved at allwattage levels. LONGLIFElamps correspond completelyto the successful standard series in their technical design,gas filler, E 27 base and un-changed light centre length.

They can therefore be used inexisting mains voltage signalswithout the need for upgradesor adjustments.


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Product reference Product numberStandard mains voltage lampsSIG 15341) 4050300032474 235 40 230 E27 62 110 69 1 100SIG 15351) 4050300032467 235 70 380 E27 62 110 69 1 100Standard LONGLIFE mains voltage lampsSIG 1534 LL1) 4050300613703 235 40 200 E27 62 110 69 1 100

1) Not for new designs2) The lamps must be installed only in the burning positions specified. Any other burning positions will

lead to premature failure of the lamp. The abbreviations indicate the main burning position and the permitted angle in degrees. Main burning positions: s = standing (vertical), base down

Mains voltage standard lamps are used primarily where there are no special requirements in terms of theluminous intensity of the signal lights

OSRAM quality combines reliability with long lamp life – the essential ingredients for safe control of road traffic


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Lamps for rail traffic signalling equipment

1) Supplied on request2) One base contact is a blind contact3) Not for new designs4) LCL = light centre length (distance from the coil to top of base)* Average lamp life

Single-filament lamps

Safety on the railways calls forreliable signalling equipment.Defective lamps pose a serious risk, cause expensivedelays to train schedules and lead to costly and time-consuming maintenance work because of the large distances between signals.OSRAM has played a majorrole over many years in en-suring that railways have operated at high levels of safety and efficiency. The advantages of OSRAM lampsare as follows:– Narrow tolerances– Exact light centre– Long lamp life– High reliability

Extremely strict quality controls ensure compliancewith tight geometrical tol-erances, photometric valuesand specified life. The variouswattages of the normal andoverpressure types (= ref-erence “Ü”) are matched to the specific needs of the relevant optical systems.

Product reference Product numberNormal pressure lampsSIG 40201)3) 4050300209–48 40 20 200 600 BA20s 36 67 29.6 Universal 2 100Overpressure lampsSIG 1206 Ü1)3) 4050300832869 12 6 55 600 BA20d2) 36 67 29.6 Universal 1 100SIG 1220 Ü1)3) 4050300831596 12 20 280 2,000 BA20d 36 65 30.0 Universal 1 100SIG 1226 Ü1) 4050300831534 12 20 230 6,000 BA20s 36 62 30.0 Universal 2 100SIG 1260 Ü1)3) 4050300832036 10 20 240 5,000 BA15s 36 62 33.5 Universal 3 100

31 2

Extremely strict quality controls ensure absolute reliability, close tolerances, a precise light centrelength and long lamp life

* 4)

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1) Supplied on request2) Not for new designs3) LCL = light centre length (distance from the coil to top of base)* Average lamp life


Note: Lamps with transverse filaments should only be inclined perpendicular to the filament plane.

Doubly safe: the second coil takes over from the main coil if the main coil fails

Dual-filament lamps

All dual-filament lamps arenow manufactured as over-pressure lamps. The secondfilament takes over from themain filament if the main filament fails. Changeovermay be manual or automatic.This provides a certain safetymargin for rail traffic until thelamp is replaced. For safetyreasons, however, it is recom-mended that the lamp be replaced as soon as possible.The various wattages are matched to the specific needsof the relevant optical sys-tems.

Product reference Product numberOverpressure lampsSIG 1810 Ü1/2) 4050300832142 12 10/10 137 600 BA20d 36 67 29.6 Universal 1 100SIG 1210 Ü1) 4050300832173 12 10/10 137 600 BA20d 36 67 29.6 Universal 1 100SIG 1820 Ü1) 4050300832234 12 20/20 350 600 BA20d 36 67 29.6 Universal 1 100SIG 1230 Ü1) 4050300832203 12 30/30 520 600 BA20d 36 67 29.6 Universal 1 100SIG 1235 Ü1) 4050300831817 12 35/35 570 600 BA20d 36 67 29.6 Universal 1 100SIG 2460 Ü1) 4050300831756 24 60/60 700 8,000 BA20d 36 67 31.0 s135 2 100SIG 3015 Ü1) 4050300832111 30 15/15 213 600 BA20d 36 67 29.6 Universal 1 100SIG 5025 Ü1) 4050300831985 50 25/25 380 600 BA20d 36 67 29.6 Universal 1 100

1 2

3)


*

Head office GermanyOSRAM GmbHHellabrunner Strasse 181543 MünchenTel.: +49-89-62 13-0Fax: +49-89-62 13-20 20

International addressesAlbania(supported by OSRAM Greece)

ArgentinaOSRAM Argentina S.A.C.I.Ramos Mejia 2456B 1643 ADN BeccarPcia. De Buenos AiresTel.: +54-11-6333-8000Fax: +54-11-6333-8001

AustraliaOSRAM Australia Pty. Ltd. Sydney11th Floor, Building 1P.O. Box 673423 Pennant Hills Road 2120 New South Wales Tel.: +61-29-4 81-83 99Fax: +61-29-4 81-94 68

AustriaOSRAM GmbHLemböckgasse 49/C/51230 WienPostfach 1 621231 WienTel.: +43-1-6 80 68-0Fax: +43-1-6 80 68-7

Azores(supported by OSRAM Portugal)

Belgium

OSRAM N.V.Greenhill Campus HaasrodeInterleuvenlaan 15 C3001 Leuven (Heverlee)Tel.: +32-2-7 19 29 11Fax: +32-2-7 21 40 85

Bosnia-Herzegovina(supported by OSRAM Croatia)

BrazilOSRAM do Brasil Lâmpadas Elétricas Ltda.Av. Dos Autonomistas, 422906090-901 Osasco-SP/BrazilTel.: +55-11-36 84 74 08Fax: +55-11-36 85 94 95

BulgariaOSRAM EOODNikola Obreschkov 1Wh. A., App. 11113 SofiaTel.: +359-2-9 71 22 62Fax: +359-2-9 71 45 46

CanadaOSRAM SYLVANIA Ltd./Lte.2001 Drew RoadMississaugaOntario L5S 1S4Tel.: +1-905-6 73 61 71Fax: +1-905-6 71 55 84

ChileOSRAM Chile Ltda.Santa Elena de Huechuraba 1135 B Comunade Huechuraba Santiago de ChileTel.: +56-2-7 40-09 39Fax: +56-2-7 40-04 66

ChinaOSRAM Foshan Lighting Co. Ltd.No.1North Industrial Road, Postal Code 528000Foshan, GuangdongTel.: +86-757-864 82-111Fax: +86-757-864 82-222

OSRAM Shanghai Rep. OfficeHarbour Ring Plaza No. 18 Xi Zang Middle RoadRoom 2802, 2803 AShanghai, 200001 P.R.C.Tel.: +86-21-53 86 28-48Fax: +86-21-64 86 12-19

ColombiaOSRAM de ColombiaDiagonal 109 No. 21-05Oficina 607, 608BogotáTel.: +57-1-6 19 24 07Fax: +57-1-6 37 18 55

CroatiaOSRAM d.o.o.Majstora Radonje 1010000 ZagrebTel.: +385-1-303-20 00Fax: +385-1-303-20 01

CzechiaOSRAM spol. s.r.o.Kodanska 1441/46100 10 Praha 10Tel.: +420 234 06 60 00Fax: +420 234 06 60 20

DenmarkOSRAM A/SDybendalsvænget 32630 TåstrupPostboks 2592630 TåstrupTel.: +45-44-77 50-00Fax: +45-44-77 50-55

EgyptOSRAM Rep. Office Cairo5th Floor, Unit No. 50757 Giza Street Cairo, GizaTel.: +20-2-7 48 66 46Fax: +20-2-7 48 66 46

EcuadorOSRAM del Ecuador S.A.Casilla 09-01-8410GuayaquilTel.: +593-4-2 89 36 09Fax: +593-4-2 89 35 58

Estonia(supported by OSRAM Finland)

FinlandOy OSRAM AB, HelsinkiVanha Porvoontie 22901380 VantaaBox 9101301 VantaaTel.: +358-9-74 22 33 00Fax: +358-9-74 22 33 74

FranceOSRAM SASU5, Rue d’Altorf67124 MolsheimBP 1 0967124 MolsheimTel.: +33-388-49 75 99Fax: +33-388-49 75 975

Great BritainOSRAM Ltd., LondonOSRAM HouseWaterside DriveLangley, BerkshireSL3 6EZTel.: +44-17 53 48 41 00Fax: +44-17 53 48 42 22

GreeceOSRAM A.E.Frantzi 6 & Ag. Pavlon12132 PeristeriTel.: +30-210-5 20 18 00Fax: +30-210-5 22 72 00

Hong KongOSRAM Prosperity Co. Ltd.Rm 4007-09 Office TowerConvention Plaza1 Harbour Road, WanchaiTel.: +852-25 11 22 68Fax: +852-25 11 20 38

HungaryOSRAM KFT.Alkotas utca 41.1123 BudapestTel.: +36-1-2 25-30 55Fax: +36-1-2 25-30 54

IndiaOSRAM India Ltd.Signature Towers, 11th Floor, Tower-B South City-I 122001 Gurgaon Haryana/IndiaTel.: +91-124-238 31-80Fax: +91-124-238 31-82

IndonesiaPT. OSRAM IndonesiaJalan Siliwangi KM 1Desa KeroncongJatiuwung15134 TangerangTel.: +62-21-5 90 01 27Fax: +62-21-5 90 05 59

IranOSRAM LampsOSRAM PJS Co.Bokharest Ave, Str. 6, No. 13TehranTel.: +98-21-8 73 84 76Fax: +98-21-8 73 24 13

ItalyOSRAM Società RiuniteOSRAM Edison-Clerici SpaVia Savona 10520144 MilanoTel.: +39-02-42 49-1Fax: +39-02-42 49-380

JapanOSRAM MELCO Ltd.Tobu Yokohama Bldg.No. 3 (4F) 8-29 Kita-Saiwai 2-chome, Nishi-Ku220-0004 YokohamaTel.: +81-45-3 23 51-20Fax: +81-45-3 23 51-55

OSRAM Ltd.Tobu Yokohama Bldg.No. 3 (6F)8-29 Kita-Saiwai 2-chome, Nishi-Ku220-0004 YokohamaTel.: +81-45-3 23 51-00Fax: +81-45-3 23 51-10

KoreaOSRAM Korea Co. Ltd.3rd. Fl. Ye-Sung Bldg.150-30 Samsung-dong, Kangnam-KuSeoul 135-090Tel.: +82-2-5 54 41 12Fax: +82-2-5 56 16 44

Latvia(supported by OSRAM Finland)

Lithuania(supported by OSRAM Finland)

Macedonia(supported by OSRAM Greece)

Madeira(supported by OSRAM Portugal)

MalaysiaOSRAM Sdn Bhd7.05-7.06 Amoda Building22 Jalan Imbi55100 Kuala LumpurTel.: +60-3-21 45 95-33Fax: +60-3-21 45 95-35

MexicoOSRAM de México, S.A. de C.V.Camino a Tepalcapa No. 8Col. San Martin54900 TultitlánEdo. de MéxicoTel.: +52-55-58 99-18 00Fax: +52-55-58 84-65 60

NetherlandsOSRAM Nederland B.V.Vennootsweg 152404 CG Alphen a/d RijnPostbus 3 322400 Alphen a/d RijnTel.: +31-172-48 38 38Fax: +31-172-44 30 25

NorwayOSRAM ASStrandveien 501366 LysakerTel.: +47-67 83 67-00Fax: +47-67 83 67-40PhilippinesOSRAM Philippines Ltd. Corp.Unit 2002–2003Antel Global Corporate CenterJulia Vargas AvenueOrtigas CenterPasig CityTel.: +632-687 60 48-50Fax: +632-687 60 57

PolandOSRAM sp. z o.o.ul. Wiertnicza 11702292 WarszawaTel.: +48-22-6 51 78 69Fax: +48-22-6 42 14 18

PortugalOSRAM Empresa de Aparelhagem Eléctrica Lda.Rua do Alto do Montijo Nr. 15-4 andar2795-619 CarnaxideTel.: +351-2 14 16 58 60Fax: +351-2 14 17 12 59

RomaniaOSRAM Romania S.R.L.Sos. Pipera 41 Sector 27000 Romania/BucarestiTel.: +40-21-2 33 02-12Fax: +40-21-2 33 02-14

RussiaOSRAM MoscowUl. Malaja Kaluschskaja 15/4117071 MoscowTel.: +7-095-9 35 70-70Fax: +7-095-9 35 70-76

SingaporeOSRAM Pte. Ltd.159 Sin Ming Road#05-04 Amtech Building575625 SingaporeTel.: +65-65 52 01 10Fax: +65-65 52 71 17

SlovakiaOSRAM Slovakia a.s.Komárnanská cesta 794093 Nové ZámkyTel.: +42-1-35 64 64-0Fax: +42-1-35 64 64-883

Slovenia(supported by OSRAM Austria)

South AfricaOSRAM (Pty.) Ltd.,260, 15th Road1683 Randjespark/MidrandPrivate BAG X 2061685 Halfway House/MidrandTel.: +27-11-2 07 56 00Fax: +27-11-8 05 17 11

SpainOSRAM, S.A.Calle de la Solana, 4728850 Torrejón de Ardoz (Madrid)Tel.: +34-91-6 55 52 00Fax: +34-91-6 56 82 16

SwedenOSRAM ABRudanvägen 113625 HaningeBox 5 0413625 HaningeTel.: +46-8-7 07 44-00Fax: +46-8-7 07 44-40

SwitzerlandOSRAM AG, WinterthurIn der Au 68401 Winterthur/TössPostfach 21798401 Winterthur/TössTel.: +41-52-2 09 91 91Fax: +41-52-2 09 99 99

TaiwanOSRAM Taiwan Company Ltd.Sung Chiang Road, 7th Floor, No. 87Sug Ching RoadP.O. Box 46304Taipei - Taiwan, R.O.C.Tel.: +886-2-25 08 35 02Fax: +886-2-25 09 67 82

ThailandOSRAM Thailand Co. Ltd.100/45, 24th FloorSathorn Nakorn TowerNorth Sathorn Road Khwaeng Silom Khet Bangrak, Bangkok 10500Tel.: +66-2-6 36 74 75Fax: +66-2-6 36 74 77

TurkeyOSRAM AMPUL TIC. A.S.Meclisi Mebusan Caddesi 125 80400 Findikli, Istanbul/TRTel.: +90-212-334-1334Fax: +90-212-334-1142

UkraineOSRAM Rep. Officeul. Vorovskogo, 3601054 Kiev/UkraineTel.: +380-44-2 46 93 14Fax: +380-44-2 46 99 91

United Arab EmiratesOSRAM Middle East FZEP.O. Box 17476Room #602-603, LOB #16Jebel Ali Free ZoneDubai United Arab EmiratesTel.: +971-4-88 13-767Fax: +971-4-88 13-769

USAOSRAM SYLVANIA INC.100 Endicott StreetDanvers, MA 01923Tel.: +1-978-777-19 00Fax: +1-978-750-21 52

VietnamOSRAM Singapore Pte. Ltd.Rep. Office Vietnam59A Ly Thai To Street, Hanoi Press ClubHoan Kiem DistrictHanoiTel.: +84-4-93 49-801Fax: +84-4-93 49-803

YugoslaviaRep. Office of OSRAM GmbHPredstavništvo OSRAM GmbHČika Ljubina 15/V11000 BeogradTel.: +381-11-30 30-860Fax: +381-11-30 30-853

Internethttp://www.osram.dehttp://www.osram.comhttp://catalog.myosram.com/DEhttp://catalog.myosram.com/EN

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Documents

Safe, durable and economical · its characteristics at rated voltage. The relative changes for gas filled incandescent lamps as the operating volt-age deviate from the rated voltage