Tunnel & Underpass lighting

The best of both worlds

With LED technology in road tunnel lighting we can offer a new balance between Costs, Comfort and Care. The T-line road tunnel

lighting luminaire integrates the quality and safety achievable with fluorescent linear lighting with the efficiency and Total Cost of

Ownership of high pressure sodium point source lighting. Therefore, T-line perfectly suits Indal’s TRIPLE-C philosophy;

providing the perfect balance between Costs, Comfort and Care.

TRIPLE-CThe perfect balance

COSTSA unique Total Cost of Ownership proposition:

• Extremely long-life LED light source resulting in less maintenance and high availability.

• Efficient lighting system reduces energy costs.

• Light weight plug-and-play luminaires reduce installation costs.

• Proven, robust mounting technique provides extended construction life.

COMFORTHigh-quality cool white LED delivered by a linear lighting solution:

• Linear lighting solution providing excellent visual guidance and near perfect light uniformity.

• Cool white colour solution for improved visibility and a CRI index of 75.

• Optimised lighting conditions can improve traffic flow and safety.

• Reduced energy consumption and CO2 emissions.

• No over-lighting due to unique dimming features.

• Lower lighting levels are sometimes possible due to application of cool white LED linear light.

• Luminaire manufactured largely from recyclable materials.

Comfort

CostsCare

T-line’s perfect balance

CARELED technology is an energy-saving solution with a positive contribution to the environment:

In road tunnels, a fluorescent linear solution is the preferred

choice for most users. With excellent lighting uniformity on

the road and walls, perfect visual guidance and high colour

recognition (CRI index of 75 and cool white), it offers the driver

superior lighting quality and safety as well as high system

redundancy compared to point source lighting solutions.

High pressure sodium point source lighting is however a more

cost-effective solution. The high lumen output of each lamp

means less luminaires and reasonable maintenance costs.

In addition, the luminaires consume less energy and require a

lower initial capital expenditure. All this adds up to an acceptable

Total Cost of Ownership.

T-lineCombining the benefi ts of fl uorescent linear lighting with the advantages of point source lighting

Indal has developed a series of linear LED luminaires primarily for road tunnel lighting applications. The result is T-line: road tunnel

lighting combining the ‘Comfort’, quality and safety of a fluorescent linear scheme with a Total ‘Cost’ of Ownership of a high pressure

sodium point source scheme, with the added benefit of taking greater ‘Care’ of the environment due to LED technology.

3

The T-line luminaire series is initially available in two different types. The 40 LED version for tunnel interior lighting and the 56 LED version for entrance lighting.

T-line tunnel lighting luminaire

Generic T-line specifi cations

T-line 56 LED entrance

LED module housing: The main housing and lens cover are

manufactured from a high quality extruded

aluminium (AlMgSi0.5 acc 6066 T66) with

an anodised neutral colour finish (> 25µm

thickness and sealed according URAS/

EWAA). The end covers are made in die-

cast aluminium (LM6/DIN230), having a

high quality pre-treatment and polyester

powder coating finish (>65µm thickness).

Impact resistance: IK 09 (housing).

Optical system: Clear plastic DIRECTA™ lenses, adhered

to lens cover plate by automated

silicone sealing process. The light

distribution has been optimised for road

tunnel applications (symmetrical and

asymmetrical available).

Ingress protection: IP 66, with 6mm EPDM gasket and flat

free-draining surfaces (no cooling fins).

Equipped with pressure equalising filter

to prevent under and over-pressure.

T-line 40 LED interior

T-line tunnel lighting luminaire Light weight, low-profi le and

fl at free-draining surfaces, no cooling fi ns.

Suitable for plug-and-play installation.

The driver is mounted remotely for

ease of maintenance.

Corrosion protection system and

IP 66 ingress protection.

Lens and LED are integrated, resulting in

high lumen output performance and an

accurate light distribution.

Design

Connectivity

Protection

Optics

5

Each T-line is supplied with a single highly efficient driver. These drivers

operate remotely and can be mounted up to 15m away from the luminaire

as standard (longer distances can be accommodated with larger cable sizes).

As part of the M&E system design, the installation contractor will normally

determine the driver installation method and location. However, Indal can

provide a number of standard solutions if preferred. The T-line driver can also

be integrated into Indal’s i-TunneL® Control & Monitoring system, to provide

total automatic control of the lighting system.

Driver installation

T-line luminaires are compact and therefore easy to store and

handle. Their shallow construction means they can sometimes

be installed over-lane, where traditionally a normal fluorescent

luminaire would be unsuitable. This results in a lower luminaire

quantity, reducing installation costs and energy consumption.

Each luminaire is fitted with a flying lead and plug, providing

faster plug-and-play installation and replacement. With linear

mounting flanges and clamps, the luminaires can be easily

adjusted in the horizontal plane for straight forward alignment.

To prevent corrosion resulting

from dissimilar metals, the

mounting system provides total

isolation between the LED module

and the support structure.

T-line LED’s have an extremely long life expectancy; therefore no

lamp replacements are required for the lifetime of the luminaire.

Furthermore, the smooth self-draining surface with no cooling

fins, make the T-line easy to clean.

T-line characteristicsEasy installation and maintenance

The diagram on the right represents a typical standard installation.

Up to ten drivers are grouped into one driver enclosure.

An appropriate power supply is required for each enclosure with the

addition of a suitable control signal, when dimming is necessary.

This layout enables efficient and straight forward system design,

and requires significantly less power supply connections than an

equivalent fluorescent scheme.

The T-line luminaires can also be integrated into Indal’s

i-TunneL® Control & Monitoring system, providing a total lighting

solution. Similar to the standard layout, typically ten drivers are

grouped into a number of driver enclosures. The drivers are connected

to a local interface unit (housed in the same enclosure) - each

enclosure is then connected to the B-ScoutMaster control panel via

a robust RS-485 single-layer communications network. Formed by

factory prepared plug-and-play assemblies of high quality LS0H cable.

For detailed information about the dedicated i-TunneL® C&M system

please contact your local Indal Tunnel Support contact.

i-TunneL® C&M installation topology

T-line lighting system topology

Standard T-line installation topology

logo eps aanleveren

Driver enclosure

T-lineT-line2core LSOH fl ying leads plugs

Control signal cable

Drivers

Standard & UPS power supplies

Extension leads hard wired into driver enclosure and plugged into fl ying leads

Standard Topology

Photometer B-ScoutMaster

UPS

Driver enclosures

Link to SCADA system

Driver enclosure

T-lineT-line2core LSOH fl ying leads plugs

RS-485 cables with plugs

Drivers Local interface unit

Standard & UPS power supplies

Extension leads hard wired into driver enclosure and plugged into fl ying leads

i-TunneL® C&M Topology

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Advanced REVOLED™ technologyT-line is based on REVOLED™ technology developed by Indal. Thanks to REVOLED™, T-line offers all the benefits of LED light sources. Powerful, high-quality LED’s, the COO-LED™ cooling system and DIRECTA™ lenses give you excellent light quality, high energy savings and low CO2 emissions.

REVOLED™

High-quality power LED’s

REVOLED™ uses powerful, high-quality LED’s that contain no

mercury and emit no UV radiation. They provide efficient,

uniform and comfortable cool white light with superb colour

rendering. This improves visibility of vehicles and objects in

tunnels and as a result, the safety of drivers and passengers.

REVOLED™ also offers energy savings and a big reduction in

CO2 emissions.

COO-LED™

For increased LED life span

COO-LED™ delivers superior temperature control by combining low current

LED’s with a large cooling surface that’s an integral part of the luminaire housing.

LED’s are bonded directly to the outer skin of the luminaire eliminating any

insulation in the heat dissipation path, which not only ensures high LED effi ciency,

but also provides an extremely long system life span.

DIRECTA™ Lenses for high optical efficiency and accuracy

Patented DIRECTA™ clear lenses are

integrated into the luminaire housing with

no additional cover required. The result is

high luminaire efficiency of 85 to 95%.

That’s 10 to 25% more efficient than

conventional lighting solutions. DIRECTA™

also allows you to direct the very small LED

light source with extreme accuracy, ensuring

the best and most efficient lighting solution.

What’s more, the lenses are watertight and

dustproof (IP 66+) offering extra protection.

9

T-line is fully dimmable and if combined with precise L20 control (like the

i-TunneL® C&M system), it can provide the exact level of light needed at

any given time, providing significant energy savings. This is in contrast

to systems which use conventional group switching with a minimal

number of discrete lighting stages, which by their very nature are often

over-lit and therefore wasting energy. T-line even saves energy compared

to traditional dimming systems employing high pressure sodium light

sources. Unlike high pressure sodium dimming, T-line can dim both

instantly and down to extremely low levels at high efficiency.

The above graph demonstrates the several switching stages for entrance

lighting. The vertical line shows the common lighting stages.

The horizontal line shows the hours per day from dusk to dawn, showing

the highest lighting level (top stage very sunny) at noon. The orange

curved line is the required entrance lighting level and the grey planes

represent the over lighting due to stage switching. T-line combined with

the precise L20 control allows the system to exactly follow the orange

curved line and therefore eliminating the over-lighting, and as a result

saving extra energy consumption.

Improved lighting system effi ciencyBy clever application of the unique characteristics of the T-line luminaires the lighting designer can make additional savings compared to traditional lighting schemes.

Entr

ance

ligh

ting

DawnDusk HoursDay

Stage clouded

Stage sunny

Stage very sunnyover-lighting

required lighting level

Precise L20 controlT-line is fully dimmable and if combined with precise L20 control (like the

i-TunneL® C&M system), it can provide the exact level of light needed at

any given time, providing significant energy savings. This is in contrast

to systems which use conventional group switching with a minimal

number of discrete lighting stages, which by their very nature are often

over-lit and therefore wasting energy. T-line even saves energy compared

to traditional dimming systems employing high pressure sodium light

sources. Unlike high pressure sodium dimming, T-line can dim both

instantly and down to extremely low levels at high efficiency.

The above graph demonstrates the several switching stages for entrance

lighting. The vertical line shows the common lighting stages.

The horizontal line shows the hours per day from dusk to dawn, showing

the highest lighting level (top stage very sunny) at noon. The orange

curved line is the required entrance lighting level and the grey planes

represent the over lighting due to stage switching. T-line combined with

the precise L20 control allows the system to exactly follow the orange

curved line and therefore eliminating the over-lighting, and as a result

saving extra energy consumption.

Improved lighting system effi ciencyBy clever application of the unique characteristics of the T-line luminaires the lighting designer can make additional savings compared to traditional lighting schemes.

Entr

ance

ligh

ting

DawnDusk HoursDay

Stage clouded

Stage sunny

Stage very sunnyover-lighting

required lighting level

Precise L20 control

Like any light source, LED’s are subject to lumen depreciation over their

lifetime. But with LED’s this is very predictable. In combination with

T-line’s continuous dimming feature, the system can be designed to

compensate for LED depreciation. So even as the light output of the

luminaires weakens over time, depreciation compensation ensures a

constant level of cool white light and prevents significant over-lighting.

Lower lighting levelsT-line offers extremely high uniformity levels across tunnel surfaces,

including the walls. It also provides excellent visual guidance and better

visibility with a high CRI of 75. There is potential to reduce the required

lighting levels in certain tunnel projects in relation to the superior

quality of light when compared to some traditional light sources.

Compensation of depreciation

Some tunnels are located in areas with low traffic density, where few

vehicles pass through the structure during certain parts of the day.

Because T-line offers an instant dimming facility, certain tunnels may

be suitable to benefit from traffic based control mechanisms. During low

traffic use, the lighting could be dimmed to a certain percentage of the

required lighting level providing an on-demand energy efficient system.

Lighting on demand

11

T-line guarantees high lifetime expectancy

The T-line 40 LED version is designed to operate 24 hours per day

for long periods at full output. This version is therefore powered

at a relatively low drive current of 350mA. This low drive current

in combination with the large spacing between LED’s and clever

luminaire design, results in an exceptionally low junction

temperature. All this results in an expected LED lifetime (L70)

well in excess over 140,000 burning hours.

The T-line 56 LED version is designed for the entrance lighting

and is driven therefore at 700mA, providing the higher light

output required. Whilst the higher drive current and density of

LED’s results in a higher LED junction temperature, this version

still manages to achieve an expected lifetime of the LED’s (L70)

well in excess of 80,000 burning hours. LED’s however will last

longer when dimmed, because of their lower temperature and

given that the entrance lighting will be in a dimmed state or

switched off for some time, the net result will be that entrance

luminaires will last at least as long as the interior luminaires.

T-line offers some of the best lifetime expectancy figures available from a high output LED luminaire, made possible by the variety of unique design features, not least the COO-LED™ technology.

T-line is built to exacting standards and uses some of the highest quality power LED’s currently available. In addition, the application

of the unique REVOLED™ technology means the longevity of the luminaire is assured. The luminaire design guarantees a very low LED

junction temperature, which is the main contributor to early mortality or light depreciation.

T-line LED’s

T-line warranty conceptIn order to demonstrate our confidence in the expected lifetime

of these new luminaires and as a commitment to our customers,

Indal can provide each T-line luminaire with a robust and extended

warranty plan. Please ask your local Indal Tunnel Support contact for

the latest warranty statement on the T-line.

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DriverAs with all electronic parts, the lifetime of the driver is

determined by the temperature. If the driver is installed

according the driver design specifications, a lifetime

expectancy of 100,000 burning hours can be obtained.

Attractive Total Cost of Ownership T-line is like no other LED lighting solution. It offers unique benefits, not only compared to

fluorescent linear lighting, but also compared to high pressure sodium point source lighting and

other LED products currently available. Through a variety of comparisons prepared for a number

of different structures, Indal demonstrates that the T-line interior lighting solution contains the

benefits of a linear fluorescent lighting scheme combined with the Total Cost of Ownership of a

standard point source lighting scheme.

Compared to a linear fluorescent lighting scheme, T-line can offer:• Reduced energy costs

• Reduced CO2 emissions

• No lamp replacements required

• Accurate light distributions to limit wasted light

• Faster installation

• Significantly improved Total Cost of

Ownership

Compared to a point source interior lighting scheme, T-line can offer:• Reduced energy costs

• Reduced CO2 emissions

• No lamp replacements required

• Increased lighting uniformity

• Significantly better colour recognition

• Improved driver comfort and safety

• Comparable Total Cost of Ownership

The graph above shows just an example

between the relative Total Cost of

Ownership levels of fl uorescent linear,

LED linear and high pressure sodium

point source lighting based on a

15 year period.

It doesn’t matter what lighting solution is chosen, T-line offers an attractive long-term

investment for road tunnel lighting.

The best of both worldsWith T-line it is now truly possible to have a superior linear lighting scheme for the same cost as a less

popular point source lighting scheme, whilst significantly reducing your CO2 emissions and energy costs.

High pressure sodium point

source

LED linearFluorescent linear

Tota

l Cos

t of

Ow

ners

hip

Lamp replacement costs (labour, lamps & road closures) Energy consumption Luminaires, support structure & installation (excluding wiring)

15

MODEL TYPE SYSTEM POWER CURRENT REFLECTOR KG INSULATION CLASS

T-line interior 40 LED 50W 350mA DIRECTA™ 9 Class II Symmetrical (SRN) (excl. driver 1.3kg)

T-line entrance 56 LED 130W 700mA DIRECTA™ 9 Class II Asymmetrical (ZRN) & Symmetrical (SRN) (excl. driver 1.3kg)

TYPE PFC DIMMING INSULATION CLASS

150W > 0.90 1-10V analogue Class I (down to 15% light)

• Different optics/light distribution on request

• Alternative luminaire module lengths

• Different lumen packages on request

• Standard driver enclosure solution

• Integrated driver solution

• Prepared to accept i-TunneL® Lighting Control System

Driver is supplied separately, one driver per luminaire. Check for latest driver

specifi cations.

Indal has an international dedicated tunnel support facility for advising you on the unique T-line system

design possibilities. Please ask your local Indal Tunnel Support contact.

*Both models use cool white LED’s and CRI-index 75.

T-line specifi cations

Driver specifi cations Options

T-line technical specifi cations

Dimensions

1990

56 LED

1990

40 LED

210

65

152

1990

56 LED

1990

40 LED

210

65

152

1990

56 LED

1990

40 LED

210

65

152

40 LED

56 LED

Industria Technische Verlichting B.V.

Postbus 87683009 AT Rotterdam

Rietbaan 102908 LP Capelle aan den IJssel

T 010 - 264 01 64F 010 - 264 01 69

www.indal.nlverkoop@indal.nl