Volume I: Technical Manual BMRCL - Rolling Stock

Part B: Technical Descriptions of Equipment Systems Revision No: A0

Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-1

Section 1B-02-05-00: Lighting

1 Head Ligth
1.1 Overall
1.1.1 Overall Description
This Head Light fixture is lighted up by input voltage of DC110V. One circular, white
head light is fitted on each side of the driving cab front. When the HCR is energized,
the LED lamp provides "low" or "high" by HLS. HLS is installed on indicator panel in
cab desk.
The head light design provides excellent housed within a formed recessed panel and
is covered by glass panel. The design has many years successful operating
experience throughout the world.

1.1.2 Equipment Locations

1.1.2.1 Locations of Head Light

The Head Light is located on each side of the driving cab front as following figure.

Fig. 1B-02-05-00-01 Position of Head Light in the Car

 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-2

1.1.2.2 Component of Head Light Equipment

Product Data
Diameter 263 mm Height About 142 mm
Weight 2.9 kg

Fig. 1B-02-05-00-02 Head Light Assembly

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-3

1.1.3 Equipment Functions

The head light provided one circular, white headlight is fitted on each side of the
driving cab front.
Headlight provides illumination ahead of train set at normal case and high/low LED
beam by HLS(Head Light Switch).

LED HEAD LIGHT

HIERARCHY

Head Light
Assembly

Body for Front Light Base

Assembly Assembly

LED Beam
Assembly

Body for Rear

Assembly

Fig. 1B-02-05-00-03 Head light Hierarchy

 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-4

1.1.4 System Controls

The head light are protected by circuit breaker in the electric cabinet area of Car
section, the supplied power from battery. Low beam and high beam is supplied with
DC 110V.
The power consumption is 17W(at low) and is 33W (at high).

1.1.5 Operating Principles

When the train is initialised and Mode Selector is away from shutdown, the LED lamp
provides "low" automatically. One HLS is installed on the indicator panel in the
driving cab. By the cam switch, a train operator can switchover the Head light
between "OFF and "low" and "high".

1.1.6 Equipment Layouts

Fig. 1B-02-05-00-04 Head Light Layout

Fig. 1B-02-05-00-04 shows the general Layout of the Head Light.

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-5

1.1.6.1 Principal Parts

LED Description
LED type
Rating Voltage : DC110V
Model :
Pin Type :
Power Consumption :
17W(low)
33W(high)

Fig. 1B-02-05-00-05 LED Assembly

Connector Description
Type : 3P (P43t)

Fig. 1B-02-05-00-06 Connector Assembly

1.1.7 Design and Performance Data

Table 1B-02-05-00-01 Performance and Design Data

Rated voltage 110VDC

Power consumption 17W(low), 33W(high)
Lamp Type LED
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-6

2 Tail Light
2.1 Overall
2.1.1 Overall Description
This Tail Light fixture is lighted up by input voltage of DC110V. One white/red circular
tail light is fitted in each side of driving cab front.
When the HCR is energized, tail light on activated driving cab are turned off and tail
light on de-activated driving cab are turned on.
For the Emergency push out situation, if driver push the call on push button switch on
a failed train, the tail lights at the rear of the failed train is flashed on and off.
The tail light design provides excellent housed within a formed recessed panel and is
covered for LED on PCB by a red screen printed glass.

2.1.2 Equipment Locations

2.1.2.1 Locations of Tail Light

One white/red circular tail light is fitted in each side of driving cab front as following
figure.

Fig. 1B-02-05-00-07 Position of Tail Light in the Car

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-7

2.1.2.2 Component of Tail Light Equipment

Product Data
Length 158 mm Height About 83 mm
Width 158 mm Weight 0.856 kg
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-8

Fig. 1B-02-05-00-08 Component of Tail Light Equipment

2.1.3 Equipment Functions

The tail light provided one circular, white/red tail light is fitted on each side of the
driving cab front.
The tail lights is angled to avoid dazzling the train operators of oncoming trains. The
tail light is visible in daylight, under normal weather conditions, at a distance of 200 m
behind the train.
For the Emergency push out situation, if driver push the call on push button switch on
a failed train, the tail lights at the bothrear of the failed train is flashed on and off.

TAIL LIGHT

HIERARCHY

Tail Light
Assembly

Body for Front

Assembly

Lens
Assembly

Body for Rear LED Board

Assembly Assembly

Fig. 1B-02-05-00-09 Tail light Hierarchy

2.1.4 System Controls

The tail lights are protected by circuit breaker in the electric cabinet area of Car
section, the supplied power from DC 110V.
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-9

Power consumption is less than 10W.

2.1.5 Operating Principles

When the train system is powered up (i.e. AUX ON button is pressed), taillights on
rear DMC car of the train set is turned on in the colour of red.
When the train system is powered up (i.e. AUX ON button is pressed), taillights on
leading DMC car of the train set is turned on in the colour of white.
In case of emergency push-out operation, operation of the Call-on Light Switch
(COLS) at the front car of failed train causes the tail lights at the both DMC car of the
failed train to flash.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-10

2.1.6 Equipment Layouts

Fig. 1B-02-05-00-10 Tail Light Layout

Fig. 1B-02-05-00-10 shows the general Layout of the Tail Light.

2.1.6.1 Principal Parts

PCB for LED Description
Rated Voltage : DC 110V
Rated Power : less than 10W
Supply Voltage Variation :
70V ~ 137.5V
Sum of LED : 40 PCS

Fig. 1B-02-05-00-11 PCB for LED Assembly

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-11

Lens Description
Material : Glass
Color : White Clear

Fig. 1B-02-05-00-12 Lens Assembly

2.1.7 Design and Performance Data

Table 1B-02-05-00-02 Performance and Design Data

Rated Voltage DC 110V (70V ~ 137.5V)

Power Consumption less than 10W
Lamp Type LED (White/Red)
LED Rated Voltage 2.25V (2.01V ~ 2.75V)
Luminous Range 200m
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-12

3 Flasher Light
3.1 Overall
3.1.1 Overall Description
This Flasher Light fixture is lighted up by input voltage of DC110V.
One rectangular amber flashing light is mounted in the center of the cab mask head.
The Flasher light design provides excellent housed within a formed recessed panel
and is covered for LED on PCB.
Indicates in order to attract the attention of the driver of the following train or a train
approaching from the opposite direction in emergency as following case.
 ATP Cut out Mode

3.1.2 Equipment Locations

3.1.2.1 Locations of Flasher Light

One rectangular, amber Flasher light is fitted in the center of cab mask head as
following figure.

Fig. 1B-02-05-00-13 Position of Flasher Light in DMC

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-13

3.1.2.2 Component of Flasher Light Equipment

Product Data
Length 190 mm Height About 64 mm
Width 80 mm Weight 0.432 kg
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-14

Fig. 1B-02-05-00-14 Component of Flasher Light Equipment

3.1.3 Equipment Functions

The Flasher Light provided one rectangular amber flashing, is fitted in the center of
cab mask head front.
The light unit has flashing control circuit inside unit the circuit makes the light
flashing.
The flasher light is visible in daylight, under normal weather conditions, at a distance
of 300m behind the train.
The light is turn on in both cabs by safety cut out switch in the emergency situation.

FLASHER LIGHT
HIERARCHY

Flasher Light
Assembly

Body Frame
Assembly

Lens LED Board

Assembly
Assembly

Fig. 1B-02-05-00-15 Flasher light Hierarchy

3.1.4 System Controls

The flasher light are protected by circuit breaker in the electric cabinet area of Car
section, the supplied power from DC 110V.
Power consumption is less than 10W.

3.1.5 Operating Principles

The supply MCB is energized continuously during the train service or the train depot.
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-15

The MCB is a circuit protection for isolation of the equipment over current fault.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-16

3.1.6 Equipment Layouts

Fig. 1B-02-05-00-16 Flasher Light Layout

Fig. 1B-02-05-00-16 shows the general Layout of the Flasher Light.

3.1.6.1 Principal Parts

PCB for LED Description
Rated Voltage : DC 110V
Rated Power : less than 10W
Supply Voltage Variation :
90V ~ 135V
Sum of LED : 48 PCS

Fig. 1B-02-05-00-17 PCB for LED Assembly

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-17

Lens Description
Material : Polycarbonate
Color : Amber

Fig. 1B-02-05-00-18 Lens Assembly

3.1.7 Design and Performance Data

Table 1B-02-05-00-03 Performance and Design Data

Rated Voltage DC 110V ( 70V ~ 137.5V)

Power Consumption less than 10W
Lamp Type LED (Amber)
LED Rated Voltage 2.25V (2.01V ~ 2.75V)
Luminous Range 300m(Normal conditions)

4 Door Indication Lamp

4.1 Overall
4.1.1 Overall Description
This Door Indication Lamp fixture is lighted up by input voltage of DC110V. Door
Indication Lamp(inside) is fitted above the center of each door.
Door Indication Lamp(outside) is fitted near each door at bodyside.
The Door Indication Lamp is designed to notify the passenger door's status and
consists of L.E.D(Light Emitting Diode) by a amber screen printed lens.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-18

4.1.2 Equipment Locations

4.1.2.1 Locations of Door Indication Lamp

Amber circular Door Indication Lamp is fitted on each side of the car as following
figure.

DMC

TC

Fig. 1B-02-05-00-19 Position of Door Indication Lamp in each Car

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-19

4.1.2.2 Component of Door Indication Lamp Equipment

Product Data
Length 95 mm Height About 89.8 mm
Width 95 mm Weight 0.40 kg
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-20

Fig. 1B-02-05-00-20 Component of Door Indication Lamp Equipment

4.1.3 Equipment Functions

The Door Indication Lamp is visible from platforms through the platform screen
doors.
The light turns on as follows;
 Door Indication Lamp for door and passenger alarm device(Amber Light)
indicates any non-isolated door is not provided fully closed on that car, or any
internal / external manual release device is operated on that car.
 Both indicators will be flashed if passenger alarm device is operated in that car.
 The indicator will be permanently illuminated on that side where the door is open.

DOOR INDICATION LAMP

HIERARCHY

Door Indication
Lamp Assembly

Body Frame
Assembly

Lens
Assembly

Body for Rear LED Board

Assembly Assembly

Fig. 1B-02-05-00-21 Door Indication Lamp Hierarchy

4.1.4 System Controls

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-21

The Door Indication Lamp are protected by circuit breaker in the electric cabinet
area of Car section, the supplied DC 110V.
Power consumption is less than 5W.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-22

4.1.5 Operating Principles

The Door Indication Lamp is supplied with 110VDC directly from door control
circuit(door controller), that is protected by the circuit breaker in the electric locker in
the articulated area of each connected to the door controller.
The light turns on when :
* any door is not fully closed and locked on that car, or
* any internal / external manual release device is operated on that car, or
* any passenger alarm device is operated on that car.

4.1.6 Equipment Layouts

Fig. 1B-02-05-00-22 Door Indication Lamp Layout

Fig. 1B-02-05-00-22 shows the general Layout of the Door Indication Lamp.
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-23

4.1.6.1 Principal Parts

PCB for LED Description
Rated Voltage : DC 110V
Rated Power : less than 10W
Supply Voltage Variation :
77V ~ 137.5V
Sum of LED : 18PCS

Fig. 1B-02-05-00-23 PCB for LED Assembly

Lens Description
Material : Polycarbonate
Color : Amber

Fig. 1B-02-05-00-24 Lens Assembly

4.1.7 Design and Performance Data

Table 1B-02-05-00-04 Performance and Design Data

Rated Voltage DC 110V (77V ~ 137.5V)

Power Consumption less than 10W
Lamp Type LED (Amber)
LED Rated Voltage 2.25V (2.01V ~ 2.75V)
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-24

5 Cab Main Light

5.1 Overall
5.1.1 Overall Description
This Cab Main Light fixture is lighted up by input voltage of DC110V. A double
fluorescent tube with Cab Main Light is mounted on the cab ceiling.
The lights is controlled by Cab light Push button 1, 2 on.
This light is automatically turned on as when
 Cab/saloon partition door is opened only in the rear cab.
The cab is provided with a ceiling lights, providing 200lux at 1m above floor level.

5.1.2 Equipment Locations

5.1.2.1 Locations of Cab Main Light

Cab Main Light with Double Fluorescent Tube is mounted on the cab ceiling as
following figure.

Fig. 1B-02-05-00-25 Position of Cab Main Light

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-25

5.1.2.2 Component of Cab Main Light Equipment

Product Data
Length 1335 mm Height 92 mm
Width 230 mm Weight 5.0 kg

Fig. 1B-02-05-00-26 Component of Cab Main Light Equipment

 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-26

5.1.3 Equipment Functions

The operation and control circuit of saloon light(DC) is DC 110V supplied.
These DC 110V supplied systems/equipment shall function satisfactorily at battery
supply voltage of DC 110V (nominal) between DC 77V and DC 137.5V.
Cab Main light installed on the driving cab ceiling would turn on automatically, in any
of the following conditions:
 Pressing the Cab main Light Push Button (CLPB1 or 2).
 Opening the Cab Saloon Partition Door (CSPDS) on the un-occupied cab. In this
condition, only Cab Main Light of un-occupied cab will turn on. This will also
cause a visual alarm, in the leading DMC, triggered by TMS.

CAB MAIN LIGHT

HIERARCHY

Cab Main Light

Assembly

Body Frame Inverter

Assembly
Assembly

Socket
Assembly

Fluorescent Tube
Assembly

Fig. 1B-02-05-00-27 Cab Main Light Hierarchy

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-27

5.1.3.1 Outline
This Fluorescent Lighting Fixture is lighted up by input voltage of DC110V Inverter
stored inside the fixture. This transistor inverter converter DC voltage into high the
inverter has been sufficiently, durability etc.
Lighting can be accomplished by connection of DC power source wiring to the fixture
and is simple to install.
The Saloon light of DC 110V is also fed from the battery as an emergency lighting.

5.1.3.2 High frequency supply of the tube

The basic principle of the BAT consists in supplying the tube with an alternating
voltage of high frequency (of the order of 30kHz to 40kHz).
This process has four main advantages :
 Improved light efficiency (increase of 15% at 30kHz compared with 50kHz).
 Longer life of the fluorescent tube.
 Absence of flicker for the human eye and of audible noises.
 Weight gain over the Inverter.

5.1.3.3 Operation principle of the inverter

Fig. 1B-02-05-00-28 shows the basic circuit of the inverter converting from DC to AC.
The intermitted current (I1) flows to the primary coil (N1) of transformer(T) according
as we make or break switch (S).

Fig. 1B-02-05-00-28 Basic Diagram of DC to AC Inverter

Electromagnetic induction action is occurred at transformer (T) by the intermittent

current and the AC voltage appears at secondary coil (N2) of the transformer(T).
The circuit of DC transistorized ballast has been designed so as to control the
switching action using the transistor.
BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-28

Fig. 1B-02-05-00-29 Circuit Diagram of basic Transistorized Ballast

Fig. 1B-02-05-00-29 shows the circuit of basic transistorized ballast for rolling stock.
Input supply is direct current and this circuit consists of transformer (T), two
condenser (c), resistor (R), chalk and etc.
Output is alternating current and makes the fluorescent lamp lighting.
When this circuit is connected to the input power, supply current flows from Plus(+) of
electric source (Vin) through L1 →D1→ CH1→ R2→ R3(or R4) →base of Tr.
It is called as base current (Ib1). Either transistor turns on by difference of
characteristics.
Under the turn on state (conduction state) between collector of transistor (Tr1) and
emitter, a large volume of current flows from the terminal(＋) into the circuit (a), called
collector current (Ic1).
It flows as follows,
(+) →L1 →D1 →CH1 →NC1 →Tr1 →(-)
Ic1 flows as much as hFE (current amplification rate) times of the Ib1.
As Ic1 flows into coil (Nc1), magnetic fluxes are created at ferrite core of
transformer(T) and a commensurate voltage with rate of each coil occurs at coil
(Nc1), coil(Nb) and (Np).
The voltage of coil becomes sine wave by voltage resonance between Nc and C4.
The polarity of return coil (Nb) is generated toward the same direction.
In this state, Ic1 also saturates by the magnetic saturation of the ferrite core.
And at the same time, the collector current reaches to the critical point, the base bias
voltage from coil (Nb) decreases rapidly and transistor (Tr1) turns off.
Accordingly, the polarity voltage contrary to conducting time of Tr1 leads to each coil
(Nb) and the base bias of transistor (Tr2) becomes ordinary direction and the
transistor (Tr2) turns on.
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-29

The collector current (Ic2) flows along the circuit (b) and it flows as follows,
(+) →L1 →D1 →CH1 →NC2 →Tr2 →(-)
These alternating switching of transistor (Tr1, Tr2) become oscillation and generate
the alternating voltage for fluorescent lamp.
Fig. 1B-02-05-00-30 shows actual circuit of transistorized ballast for rolling stock.
And voltage resonance occurs between coil (NC) and condenser (C4) and at the
same time, magnetic saturation becomes and oscillation continues above.
The voltage of NS, Nf1, Nf2, and Nf3 is added to fluorescent lamp and every
filament.
This circuit has the relay circuit. Its function is to give voltage to Fluorescent tube
after giving filament current. And this device leads to long life of the fluorescent lamp.

Fig. 1B-02-05-00-30 Transistor Fluorescent Lamp Circuit

5.1.3.4 Abbreviations
F (Fuse) : Stopping power against abnormal increasing input current
L1 (Coil) : Control of input rush current
CH1 (Chalk coil) : Control of lamp current
D1 (Diode) : Protection against reverse connection
D2 (Diode) : Rectifier
ZD (Zenner diode) : Stabilization bias voltage
ZNR1 (Surge absorber) : Surge absorber Protection against surge of supply
R1 (Resistor) : Protection for surge absorber against big current
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-30

R2 (Resistor) : Starting resister for oscillation

R3, R4 (Resistor) : Bias resistor Control of base current
R5 (Resistor) : Stabilization base current
C1 (condenser) : Filter for supply by absorbing ripple voltage of oscillation
C2 (condenser) : Rectifier
C3 (condenser) : To decide preheating time of filament
C4 (condenser) : Voltage resonance
T (transformer) : Oscillation and voltage step up
Tr (Transistor) : Oscillation for inverting

5.1.3.5 Heating of filaments

Relay(L1) operated of the transistor(Tr3) help filaments in tube to be heated during
about 1 second. That's time is decided by Condenser C3. Register R8, diode D3, D4,
Transistor.
Two assistant turns(Nf1, Nf2) of the transformer supply heating filaments with
necessary needing energy. Filaments stop connecting before long and become
permanent line that does not flow current in filaments.

5.1.3.6 Check the power source side of the fluorescent lighting fixture
When considerable number of fluorescent lamp installed in the same rolling stock
found to be out of order, check the following points, for it is considered to be caused
by power supply source side.
 Check whether or not any defect on power supply plate.
 Check connecting wire of Input power source. (Check ＋and － polarity)
 Check power source voltage. (If it is low voltage, it will not be lighted)

5.1.3.7 Check the power source side of the fluorescent lighting fixture
When the above check have found no defects, check following points for it is
considered to be caused with the fluorescent fixture.
 Confirm name of the type from the name plate attached to the inverter of the
fluorescent lamp.
For example : Name of type
Input voltage : DC110V
Lamp : 40W Fluorescent Tube
 Confirm the circuit codes on the printed base plate inside the inverter case and
check parts on the printed base plate comparing with drawing of Inverter
assembly and actual article.
 Replacement of transistor is made as per "installation method of transistor".
 After repair, confirm if it lights normally as per standard BS EN 50155 of general
description.
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-31

5.1.4 System Controls

N/S

5.1.5 Operating Principles

A double fluorescent tube Cab Main Light is mounted on the cab ceiling. One CLPB
is installed on operating panel 5 & 6. by pushing and releasing the push button, a
train operator can turns on/off the cab main light.

5.1.6 Equipment Layouts

Fig. 1B-02-05-00-31 Cab Main Light Layout

Fig. 1B-02-05-00-31 shows the general Layout of the Cab Main Light.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-32

5.1.6.1 Principal Parts

Inverter Description
Rated Voltage : DC 110V
Rated Power : 40W
Supply Voltage Variation :
77V ~ 137.5V

Fig. 1B-02-05-00-32 Inverter Assembly

Lamp Description
40W linear fluorescent tube
Width : Ø32mm
Tube type : FLR40W/A
Length : 1200mm

Fig. 1B-02-05-00-33 Lamp Assembly

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-33

Socket Description
Socket type : G13BASE

Fig. 1B-02-05-00-34 Socket Assembly

5.1.7 Design and Performance Data

Table 1B-02-05-00-05 Performance and Design Data

Item Rated value

Measuring input Input Current 0.45A or less × 2

characteristics Rated Voltage 110V DC
Frequency 25kHz or more
Measuring
Lamp Current 310 – 370mA AC
output
characteristics 44W, including power consumption of
Power Consumption
inverter unit
Lamp FLR40W/A
Design Lamp Color
3500K ~ 4500K
Temperature
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-34

6 Driving Console Light

6.1 Overall
6.1.1 Overall Description
This Driving Console Light fixture is lighted up by input voltage of DC110V. The
Driving Console Light mounted on each side of ceiling provides narrow beam on train
operator console or on auxiliary console. The lights is controlled by Driving Console
Light push button switch.
Provides narrow beam on cab operator console and auxiliary console.
Lighting of the driver's console meet the requirements of UIC 651 or, which stipulates
a minimum of 60 Lux measured at the driving console desk.

6.1.2 Equipment Locations

6.1.2.1 Locations of Driving Console Light

The Driving Console Light mounted in each side of ceiling above train operator cab
as following figure.

Fig. 1B-02-05-00-35 Position of Driving Console Light in the car

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-35

6.1.2.2 Component of Driving Console Light Equipment

Product Data
Length 118 mm Height About 43.8 mm
Width 74 mm Weight 0.150 kg
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-36

Fig. 1B-02-05-00-36 Component of Driving Console Light Equipment

6.1.3 Equipment Functions

The operation and control circuit of Driving Console Light is supplied by DC 110V.
Provides narrow beam on cab operator console and auxiliary console.
These lights provide a narrow beam of light sufficient to allow reading at the console
without illuminating the complete console.

DRIVING CONSOLE
LIGHT HIERARCHY

Driving Console
Light Assembly

Body Frame
Assembly

Ball Reflector and

Socket Assembly
Assembly

Lens LED Lamp

Assembly Assembly

Fig. 1B-02-05-00-37 Driving Console Light Hierarchy

6.1.4 System Controls

The Driving Console Light are protected by circuit breaker in the electric cabinet
area of Car section, the supplied power from DC 110V.
Power consumption is 12W.

6.1.5 Operating Principles

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-37

The DCLPB(R) is installed on operating panel 6 and the DCLPB(L) is installed on

operating panel 5 in cab. By pushing and releasing the push button, the train
operator can turn on/off the Driving Console Light.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-38

6.1.6 Equipment Layouts

Fig. 1B-02-05-00-38 Driving Console Light Layout

Fig. 1B-02-05-00-38 shows the general Layout of the Driving Console Light.

6.1.6.1 Principal Parts

LED LAMP Description
Rated Voltage : DC 110V
Rated Power : 1W
Type : LED lamp

Fig. 1B-02-05-00-39 LED LAMP Assembly

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-39

BALL Assembly Description

BALL Material : PC

Fig. 1B-02-05-00-40 BALL Assembly

Lens and Cover Description

Lens
Material : Glass
Color : White clear
Cover
Material : Polycarbonate
Color : Gray

Fig. 1B-02-05-00-41 Lens and Cover Assembly

6.1.7 Design and Performance Data

Table 1B-02-05-00-06 Performance and Design Data

Input current 0.02A

Rated Voltage 110V DC

Power Consumption About 2W

Lamp Type LED lamp

 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-40

7 Saloon Light(DC20W)
7.1 Overall
7.1.1 Overall Description
This Saloon Light(DC) fixture is lighted up by input voltage of DC110V. A fluorescent
tube with Saloon Light(DC) is mounted on the passenger parts ceiling.
The Saloon lights(DC) is arranged so that all the door bays is sufficiently illuminated
to achieve a minimum illumination level of 100lux, measured at a level of 1metre
above the floor, under emergency situation.
It is automatically switched on at full illumination when the car is operated including in
event of an emergency detrainment.

7.1.2 Equipment Locations

7.1.2.1 Locations of Saloon Light(DC20W)

A Fluorescent Tube with Saloon Light(DC) is mounted on the passenger parts
ceiling.
The Saloon Light(DC) are located near gangway area and door bay for emergency
evacuation as following figure.

DMC

TC

Fig. 1B-02-05-00-42 Position of Saloon Light(DC20W) in the car

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-41

7.1.2.2 Component of Saloon Light(DC20W) Equipment

Product Data
Length 690mm Height About 118mm
Width About 200mm Weight 4.2 Kg
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-42

Fig. 1B-02-05-00-43 Component of Saloon Light(DC20W) Equipment

7.1.3 Equipment Functions

The operation and control circuit of saloon light(DC) is supplied by DC 110V.
These DC 110V supplied systems/equipment shall function satisfactorily at battery
supply voltage of DC 110V (normal) between DC 77V and DC 137.5V.
The Inverter units convert 110V DC to into high frequency AC power supply to turn
on the Fluorescent Tube and regulate the input current.
Provides illumination for Passenger in both normal & emergency situation.

PASSENGER SALOON
LIGHT HIERARCHY

Passenger Saloon
Light Assembly

Body Frame Inverter

Assembly
Assembly

Socket
Assembly

Fluorescent Tube
Assembly

Diffuser Glass
Assembly Assembly

Fig. 1B-02-05-00-44 Saloon Light(DC20W) Hierarchy

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-43

7.1.3.1 Outline
This Fluorescent Lighting Fixture is lighted up by in put voltage of DC110V Inverter
stored inside the fixture.
The fluorescent lamp sets of two longitudinal rows are mounted to ceiling in the
passenger's compartment of all cars.
Lighting can be accomplished by connection of DC power source wiring to the fixture
and is simple to install.
The Saloon light of DC 110V is also fed from the battery as an emergency lighting.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-44

7.1.3.2 High frequency supply of the tube

The basic principle of the BAT consists in supplying the tube with an alternating
voltage of high frequency (of the order of 30kHz to 40kHz).
This process has four main advantages :
 Improved light efficiency (increase of 15% at 30 kHz compared with 50 kHz).
 Longer life of the fluorescent tube.
 Absence of flicker for the human eye and of audible noises.
 Weight gain over the Inverter.

7.1.3.3 Operation principle of the inverter

Fig. 1B-02-05-00-45 shows the basic circuit of the inverter converting from DC to AC.
The intermitted current (I1) flows to the primary coil (N1) of transformer(T) according
as we make or break switch (S).

Fig. 1B-02-05-00-45 Basic Diagram of DC to AC Inverter

Electromagnetic induction action is occurred at transformer (T) by the intermittent

current and the AC voltage appears at secondary coil (N2) of the transformer(T).
The circuit of DC transistorized inverter has been designed so as to control the
switching action using the transistor.
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-45

Fig. 1B-02-05-00-46 Circuit Diagram of basic Transistorized Inverter

Fig. 1B-02-05-00-46 shows the circuit of basic transistorized inverter for rolling stock.
Input supply is direct current and this circuit consists of transformer (T), two
condenser (c), resistor (R), chalk and etc.
Output is alternating current and makes the fluorescent lamp lighting.
When this circuit is connected to the input power, supply current flows from Plus(+) of
electric source (Vin) through L1 →D1→ CH1→ R2→ R3(or R4) →base of Tr.
It is called as base current (Ib1). Either transistor turns on by difference of
characteristics.
Under the turn on state (conduction state) between collector of transistor (Tr1) and
emitter, a large volume of current flows from the terminal(＋) into the circuit (a), called
collector current (Ic1).
It flows as follows,
(+) →L1 →D1 →CH1 →NC1 →Tr1 →(-)
Ic1 flows as much as hFE (current amplification rate) times of the Ib1.
As Ic1 flows into coil (Nc1), magnetic fluxes are created at ferrite core of transformer
(T) and a commensurate voltage with rate of each coil occurs at coil (Nc1), coil(Nb)
and (Np).
The voltage of coil becomes sine wave by voltage resonance between Nc and C4.
The polarity of return coil (Nb) is generated toward the same direction.
In this state, Ic1 also saturates by the magnetic saturation of the ferrite core.
And at the same time, the collector current reaches to the critical point, the base bias
voltage from coil (Nb) decreases rapidly and transistor (Tr1) turns off.
Accordingly, the polarity voltage contrary to conducting time of Tr1 leads to each coil
(Nb) and the base bias of transistor (Tr2) becomes ordinary direction and the
transistor (Tr2) turns on.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-46

The collector current (Ic2) flows along the circuit (b) and it flows as follows,
(+) →L1 →D1 →CH1 →NC2 →Tr2 →(-)
These alternating switching of transistor (Tr1, Tr2) become oscillation and generate
the alternating voltage for fluorescent lamp.
Fig. 1B-02-05-00-47 shows actual circuit of transistorized inverter for rolling stock.
And voltage resonance occurs between coil (NC) and condenser (C4) and at the
same time, magnetic saturation becomes and oscillation continues above.
The voltage of NS, Nf1, Nf2, Nf3 is added to fluorescent lamp and every filament.
This circuit has the relay circuit. Its function is to give voltage to Fluorescent tube
after giving filament current. And this device leads to long life of the fluorescent lamp.

Fig. 1B-02-05-00-47 Transistor Fluorescent Lamp Circuit

7.1.3.4 Abbreviations
F (Fuse) : Stopping power against abnormal increasing input current
L1 (Coil) : Control of input rush current
CH1 (Chalk coil) : Control of lamp current
D1 (Diode) : Protection against reverse connection
D2 (Diode) : Rectifier
ZD (Zener diode) : Stabilization bias voltage
ZNR1 (Surge absorber) : Surge absorber Protection against surge of supply
R1 (Resistor) : Protection for surge absorber against big current
R2 (Resistor) : Starting resister for oscillation
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-47

R3, R4 (Resistor) : Bias resistor Control of base current

R5 (Resistor) : Stabilization base current
C1 (condenser) : Filter for supply by absorbing ripple voltage of oscillation
C2 (condenser) : Rectifier
C3 (condenser) : To decide preheating time of filament
C4 (condenser) : Voltage resonance
T (transformer) : Oscillation and voltage step up
Tr (Transistor) : Oscillation for inverting

7.1.3.5 Heating of filaments

Relay(L1) operated of the transistor(Tr3) help filaments in tube to be heated during
about 1 second. That's time is decided by Condenser C3. Register R8, diode D3, D4
and Transistor.
Two assistant turns(Nf1, Nf2) of the transformer supply heating filaments with
necessary needing energy. Filaments stop connecting before long and become
permanent line that does not flow current in filaments.

7.1.3.6 Check the power source side of the fluorescent lighting fixture
When considerable number of fluorescent lamp installed in the same rolling stock
found to be out of order, check the following points, for it considered to be caused by
power supply source side.
 Check whether or not any defect on power supply plate.
 Check connecting wire of Input power source. (Check ＋and － polarity)
 Check power source voltage. (If it is low voltage, it will not be lighted)

7.1.3.7 Repair of the fluorescent lighting fixture

When the above checks have found no defects, check following points for it
considered to be caused with the fluorescent fixture.
 Confirm name of the type from the name plate attached to the inverter of the
fluorescent lamp.
For example: Name of type
Input voltage: DC110V
Lamp: 20W
 Confirm the circuit codes on the printed base plate inside the inverter case and
check parts on the printed base plate comparing with drawing of Inverter
assembly and actual article.
 Replacement of transistor is made as per "installation method of transistor".
 After repair, confirm if it lights normally as per standard BS EN 50155 of general
description.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-48

7.1.4 System Controls

N/S

7.1.5 Operating Principles

A fluorescent tube Saloon Light(DC) is mounted on the passenger parts ceiling.
DC fluorescent lamps for passenger saloon in each car are controlled by separate
MCBs on the electrical panel of each car.
The DC light are controlled by TMS VDU when power is supplied for the lights.

7.1.6 Equipment Layouts

Fig. 1B-02-05-00-48 Saloon Light(DC20W) Layout

Fig. 1B-02-05-00-48 shows the general Layout of the Saloon Light(DC).

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-49

7.1.6.1 Principal Parts

inverter Description
Rated Voltage : DC 110V
Rated Power : 20W
Supply Voltage Variation :
77V ~ 137.5V

Fig. 1B-02-05-00-49 Inverter Assembly

Lamp Description
20W linear fluorescent tube
Width : Ø28mm
Tube type : FLR20W/A
Length : 590mm

Fig. 1B-02-05-00-50 Lamp Assembly

BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-50

Socket Description
Socket type : G13BASE

Fig. 1B-02-05-00-51 Socket Assembly

Diffuser Description
Laminated Safety glass
Opalescent interlayer diffuser
Al - Side Cover
Al - Frame (hinge and fixture)

Fig. 1B-02-05-00-52 Diffuser Assembly

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-51

7.1.7 Design and Performance Data

Table 1B-02-05-00-07 Performance and Design Data

Item Rated value

Measuring input Input Current 0.45ADC or less

characteristics Rated Voltage 110VDC
Frequency 25kHz or more
Measuring
Lamp Current 310 – 370mA AC
output
characteristics 24W, including power consumption
Power Consumption
of inverter unit

Lamp FLR20W/A

Design Lamp Color

3500K ~ 4500K
Temperature
Diffuser Laminated Safety opal glass
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-52

8 Saloon Light(DC40W)
8.1 Overall
8.1.1 Overall Description
This Saloon Light(DC) fixture is lighted up by input voltage of DC110V. A fluorescent
tube with Saloon Light(DC) is mounted on the passenger parts ceiling.
The Saloon lights(DC) is arranged so that all the door bays is sufficiently illuminated
to achieve a minimum illumination level of 100lux, measured at a level of 1metre
above the floor, under emergency situation.
It is automatically switched on at full illumination when the car is operated including in
event of an emergency detrainment.

8.1.2 Equipment Locations

8.1.2.1 Locations of Saloon Light(DC40W)

A Fluorescent Tube with Saloon Light(DC) is mounted on the passenger parts
ceiling.
The Saloon Light(DC) are located near gangway area and door bay for emergency
evacuation as following figure.

DMC

TC

Fig. 1B-02-05-00-53 Position of Saloon Light(DC) in the car

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-53

8.1.2.2 Component of Saloon Light(DC40W) Equipment

Product Data
Length 1300mm Height About 118mm
Width About 200mm Weight 7.2 Kg
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-54

Fig. 1B-02-05-00-54 Component of Saloon Light(DC40W) Equipment

8.1.3 Equipment Functions

The operation and control circuit of saloon light(DC) is DC 110V supplied.
These DC 110V supplied systems/equipment shall function satisfactorily at battery
supply voltage of DC 110V (normal) between DC 77V and DC 137.5V.
The Inverter units convert 110VDC to into high frequency AC power supply to turn on
the Fluorescent Tube and regulate the input current.
Provides illumination for Passenger in both normal & emergency situation.

PASSENGER SALOON
LIGHT HIERARCHY

Passenger Saloon
Light Assembly

Body Frame Inverter

Assembly
Assembly

Socket
Assembly

Fluorescent Tube
Assembly

Diffuser Glass
Assembly Assembly

Fig. 1B-02-05-00-55 Saloon Light(DC) Hierarchy

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-55

8.1.3.1 Outline
This Fluorescent Lighting Fixture is lighted up by in put voltage of DC110V Inverter
stored inside the fixture.
The fluorescent lamp sets of two longitudinal rows are mounted to ceiling in the
passenger's compartment of all cars.
Lighting can be accomplished by connection of DC power source wiring to the fixture
and is simple to install.
The Saloon light of DC 110V is also fed from the battery as an emergency lighting.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-56

8.1.3.2 High frequency supply of the tube

The basic principle of the BAT consists in supplying the tube with an alternating
voltage of high frequency (of the order of 30kHz to 40 kHz).
This process has four main advantages :
 Improved light efficiency (increase of 15% at 30 kHz compared with 50 kHz).
 Longer life of the fluorescent tube.
 Absence of flicker for the human eye and of audible noises.
 Weight gain over the Inverter.

8.1.3.3 Operation principle of the inverter

Fig. 1B-02-05-00-56 shows the basic circuit of the inverter converting from DC to AC.
The intermitted current (I1) flows to the primary coil (N1) of transformer(T) according
as we make or break switch (S).

Fig. 1B-02-05-00-56 Basic Diagram of DC to AC Inverter

Electromagnetic induction action is occurred at transformer (T) by the intermittent

current and the AC voltage appears at secondary coil (N2) of the transformer (T).
The circuit of DC transistorized inverter has been designed so as to control the
switching action using the transistor.
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-57

Fig. 1B-02-05-00-57 Circuit Diagram of basic Transistorized Inverter

Fig. 1B-02-05-00-57 shows the circuit of basic transistorized inverter for rolling stock.
Input supply is direct current and this circuit consists of transformer (T), two condenser
(c), resistor (R), chalk and etc.
Output is alternating current and makes the fluorescent lamp lighting.
When this circuit is connected to the input power, supply current flows from Plus(+) of
electric source (Vin) through L1 →D1→ CH1→ R2→ R3(or R4) →base of Tr.
It is called as base current (Ib1). Either transistor turns on by difference of
characteristics.
Under the turn on state (conduction state) between collector of transistor (Tr1) and
emitter, a large volume of current flows from the terminal(＋) into the circuit (a), called
collector current (Ic1).
It flows as follows,
(+) →L1 →D1 →CH1 →NC1 →Tr1 →(-)
Ic1 flows as much as hFE (current amplification rate) times of the Ib1.
As Ic1 flows into coil (Nc1), magnetic fluxes are created at ferrite core of transformer
(T) and a commensurate voltage with rate of each coil occurs at coil (Nc1), coil(Nb)
and (Np).
The voltage of coil becomes sine wave by voltage resonance between Nc and C4.
The polarity of return coil (Nb) is generated toward the same direction.
In this state, Ic1 also saturates by the magnetic saturation of the ferrite core.
And at the same time, the collector current reaches to the critical point, the base bias
voltage from coil (Nb) decreases rapidly and transistor (Tr1) turns off.
Accordingly, the polarity voltage contrary to conducting time of Tr1 leads to each coil
(Nb) and the base bias of transistor (Tr2) becomes ordinary direction and the
transistor (Tr2) turns on.
The collector current (Ic2) flows along the circuit (b) and it flows as follows,
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-58

(+) →L1 →D1 →CH1 →NC2 →Tr2 →(-)

These alternating switching of transistor (Tr1, Tr2) become oscillation and generate
the alternating voltage for fluorescent lamp.
Fig. 1B-02-05-00-58 shows actual circuit of transistorized inverter for rolling stock.
And voltage resonance occurs between coil (NC) and condenser (C4) and at the
same time, magnetic saturation becomes and oscillation continues above.
The voltage of NS, Nf1, Nf2, Nf3 is added to fluorescent lamp and every filament.
This circuit has the relay circuit. Its function is to give voltage to Fluorescent tube
after giving filament current. And this device leads to long life of the fluorescent lamp.

Fig. 1B-02-05-00-58 Transistor Fluorescent Lamp Circuit

8.1.3.4 Abbreviations
F (Fuse) : Stopping power against abnormal increasing input current
L1 (Coil) : Control of input rush current
CH1 (Chalk coil) : Control of lamp current
D1 (Diode) : Protection against reverse connection
D2 (Diode) : Rectifier
ZD (Zener diode) : Stabilization bias voltage
ZNR1 (Surge absorber) : Surge absorber Protection against surge of supply
R1 (Resistor) : Protection for surge absorber against big current
R2 (Resistor) : Starting resister for oscillation
R3, R4 (Resistor) : Bias resistor Control of base current
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-59

R5 (Resistor) : Stabilization base current

C1 (condenser) : Filter for supply by absorbing ripple voltage of oscillation
C2 (condenser) : Rectifier
C3 (condenser) : To decide preheating time of filament
C4 (condenser) : Voltage resonance
T (transformer) : Oscillation and voltage step up
Tr (Transistor) : Oscillation for inverting

8.1.3.5 Heating of filaments

Relay(L1) operated of the transistor(Tr3) help filaments in tube to be heated during
about 1 second. That's time is decided by Condenser C3. Register R8, diode D3, D4
and Transistor.
Two assistant turns(Nf1, Nf2) of the transformer supply heating filaments with
necessary needing energy. Filaments stop connecting before long and become
permanent line that does not flow current in filaments.

8.1.3.6 Check the power source side of the fluorescent lighting fixture
When considerable number of fluorescent lamp installed in the same rolling stock
found to be out of order, check the following points, for it considered to be caused by
power supply source side.
 Check whether or not any defect on power supply plate.
 Check connecting wire of Input power source. (Check ＋and － polarity)
 Check power source voltage. (If it is low voltage, it will not be lighted)

8.1.3.7 Repair of the fluorescent lighting fixture

When the above checks have found no defects, check following points for it
considered to be caused with the fluorescent fixture.
 Confirm name of the type from the name plate attached to the inverter of the
fluorescent lamp.
For example: Name of type
Input voltage: DC110V
Lamp: 40W
 Confirm the circuit codes on the printed base plate inside the inverter case and
check parts on the printed base plate comparing with drawing of Inverter
assembly and actual article.
 Replacement of transistor is made as per "installation method of transistor".
 After repair, confirm if it lights normally as per standard BS EN 50155 of general
description.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-60

8.1.4 System Controls

N/S

8.1.5 Operating Principles

A fluorescent tube Saloon Light(DC) is mounted on the passenger parts ceiling.
The DC light are controlled by TMS VDU when power is supplied for the lights.

8.1.6 Equipment Layouts

Fig. 1B-02-05-00-59 Saloon Light(DC40W) Layout

Fig. 1B-02-05-00-59 shows the general Layout of the Saloon Light(DC40W).

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-61

8.1.6.1 Principal Parts

Inverter Description
Rated Voltage : DC 110V
Rated Power : 40W
Supply Voltage Variation :
77V ~ 137.5V

Fig. 1B-02-05-00-60 Inverter Assembly

Lamp Description
40W linear fluorescent tube
Width : Ø32mm
Tube type : FLR40W/A
Length : 1200mm

Fig. 1B-02-05-00-61 Lamp Assembly

BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-62

Socket Description
Socket type : G13BASE

Fig. 1B-02-05-00-62 Socket Assembly

Diffuser Description
Laminated Safety glass
Opalescent interlayer diffuser
Al - Side Cover
Al - Frame (hinge and fixture)

Fig. 1B-02-05-00-63 Diffuser Assembly

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-63

8.1.7 Design and Performance Data

Table 1B-02-05-00-08 Performance and Design Data

Item Rated value

Measuring input Input Current 0.45ADC or less

characteristics Rated Voltage 110VDC
Frequency 25kHz or more
Measuring output Lamp Current 310 – 370mA AC
characteristics
Power 44W , including power consumption of
Consumption inverter unit
Lamp FLR40W/A
Lamp Color
Design 3500K ~ 4500K
Temperature
Diffuser Laminated Safety opal glass

9 Gangway Light
9.1 Overall
9.1.1 Overall Description
This Gangway Light fixture is lighted up by input voltage of DC110V. A circle
fluorescent tube with Gangway Light is mounted on path of the passenger parts
ceiling.
The lights provide illumination for gangway area by automation.
All diffusers is positively secured to the ceiling panel. The inboard side of the diffuser
is hinged to the ceiling panel. Quick release, tamper resistant fastenings is used to
retain the diffuser closed.
All diffusers is glazed with laminated glass with an opalescent interlayer.
Any interior lighting shall not dazzle to the seated or standing passengers.
Light shall not be perceived to flicker.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-64

9.1.2 Equipment Locations

9.1.2.1 Locations of Gangway Light

A Fluorescent Tube with Gangway Light is mounted on the passenger parts ceiling
as following figure.

DMC

TC

Fig. 1B-02-05-00-64 Position of Gangway Light in the car

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-65

9.1.2.2 Component of Gangway Light Equipment

Product Data
Length 321mm Height About 130mm
Width 321mm Weight About 2.6 kg
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-66

Fig. 1B-02-05-00-65 Component of Gangway Light Equipment

9.1.3 Equipment Functions

The operation and control circuit of Gangway Light(DC) is DC110V supplied.
These DC110V supplied systems/equipment shall function satisfactorily at battery
supply voltage of DC110V(nominal) between DC77V and DC137.5V.
Gangway light provides illumination on gangway area in normal situation &
emergency situation.

GANGWAY LIGHT
HIERARCHY

Gangway Light
Assembly

Body Frame Inverter

Assembly
Assembly

Socket
Assembly

Fluorescent Tube
Assembly

Diffuser Glass
Assembly Assembly

Fig. 1B-02-05-00-66 Gangway Light Hierarchy

9.1.3.1 Outline
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-67

This Fluorescent Lighting Fixture is lighted up by in put voltage of DC110V Inverter

stored inside the fixture.
Lighting can be accomplished by connection of DC power source wiring to the fixture
and is simple to install.
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-68

9.1.3.2 High frequency supply of the tube

The basic principle of the Inverter consists in supplying the tube with an alternating
voltage of high frequency.
This process has four main advantages:
 Improved light efficiency.
 Longer life of the fluorescent tube.
 Absence of flicker for the human eye and of audible noises.
 Weight gain over the Inverter.

9.1.3.3 Operation principle of the inverter

Fig. 1B-02-05-00-67 shows the basic circuit of the inverter converting from DC to AC.
The intermitted current (I1) flows to the primary coil (N1) of transformer(T) according
as we make or break switch (S).
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-69
BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-70

Fig. 1B-02-05-00-67 Basic Diagram of DC to AC Inverter

Electromagnetic induction action is occurred at transformer (T) by the intermittent

current and the AC voltage appears at secondary coil (N2) of the transformer(T).
The circuit of DC transistorized inverter has been designed so as to control the
switching action using the transistor.

Fig. 1B-02-05-00-68 Circuit Diagram of basic Transistorized Inverter

Fig. 1B-02-05-00-68 shows the circuit of basic transistorized inverter for rolling stock.
Input supply is direct current and this circuit consists of transformer (T), two
condenser (c), resistor (R), chalk and etc.
Output is alternating current and makes the fluorescent lamp lighting.
When this circuit is connected to the input power, supply current flows from Plus(+)
of electric source (Vin) through L1 →D1→ CH1→ R2→ R3(or R4) →base of Tr.
It is called as base current (Ib1). Either transistor turns on by difference of
characteristics.
Under the turn on state (conduction state) between collector of transistor (Tr1) and
emitter, a large volume of current flows from the terminal(＋) into the circuit (a), called
collector current (Ic1).
It flows as follows,
(+) →L1 →D1 →CH1 →NC1 →Tr1 →(-)
Ic1 flows as much as hFE (current amplification rate) times of the Ib1.
As Ic1 flows into coil (Nc1), magnetic fluxes are created at ferrite core of
transformer(T) and a commensurate voltage with rate of each coil occurs at coil
(Nc1), coil(Nb) and (Np).
The voltage of coil becomes sine wave by voltage resonance between Nc and C4.
The polarity of return coil (Nb) is generated toward the same direction.
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-71

In this state, Ic1 also saturates by the magnetic saturation of the ferrite core.
And at the same time, the collector current reaches to the critical point, the base bias
voltage from coil (Nb) decreases rapidly and transistor (Tr1) turns off.
Accordingly, the polarity voltage contrary to conducting time of Tr1 leads to each coil
(Nb) and the base bias of transistor (Tr2) becomes ordinary direction and the
transistor (Tr2) turns on.
The collector current (Ic2) flows along the circuit (b) and it flows as follows,
(+) →L1 →D1 →CH1 →NC2 →Tr2 →(-)
These alternating switching of transistor (Tr1, Tr2) become oscillation and generate
the alternating voltage for fluorescent lamp.
Fig. 1B-02-05-00-69 shows actual circuit of transistorized inverter for rolling stock.
And voltage resonance occurs between coil (NC) and condenser (C4) and at the
same time, magnetic saturation becomes and oscillation continues above.
The voltage of NS, Nf1, Nf2, Nf3 is added to fluorescent lamp and every filament.
This circuit has the relay circuit. Its function is to give voltage to Fluorescent tube
after giving filament current. And this device leads to long life of the fluorescent lamp.

Fig. 1B-02-05-00-69 Transistor Fluorescent Lamp Circuit

9.1.3.4 Abbreviations
F (Fuse) : Stopping power against abnormal increasing input current
L1 (Coil) : Control of input rush current
CH1 (Chalk coil) : Control of lamp current
D1 (Diode) : Protection against reverse connection
D2 (Diode) : Rectifier
ZD (Zener diode) : Stabilization bias voltage
 BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-72

ZNR1 (Surge absorber) : Surge absorber Protection against surge of supply

R1 (Resistor) : Protection for surge absorber against big current
R2 (Resistor) : Starting resister for oscillation
R3, R4 (Resistor) : Bias resistor Control of base current
R5 (Resistor) : Stabilization base current
C1 (condenser) : Filter for supply by absorbing ripple voltage of oscillation
C2 (condenser) : Rectifier
C4 (condenser) : Voltage resonance
T (transformer) : Oscillation and voltage step up
Tr (Transistor) : Oscillation for inverting

9.1.3.5 Check the power source side of the fluorescent lighting fixture
When considerable number of fluorescent lamp installed in the same rolling stock
found to be out of order, check the following points, for it considered to be caused by
power supply source side.
 Check whether or not any defect on power supply plate.
 Check connecting wire of Input power source. (Check ＋and － polarity)
 Check power source voltage.(If it is low voltage, it will not be lighted)

9.1.3.6 Repair of the fluorescent lighting fixture

When the above checks have found no defects, check following points for it
considered to be caused with the fluorescent fixture.
 Confirm name of the type from the name plate attached to the inverter of the
fluorescent lamp.
For example : Name of type
Input voltage : DC110V
Lamp : 18W
 Confirm the circuit codes on the printed base plate inside the inverter case and
check parts on the printed base plate comparing with drawing of Inverter
assembly and actual article.
 Replacement of transistor is made as per "installation method of transistor".
 After repair, confirm if it lights normally as per standard BS EN 50155 of general
description.

9.1.4 System Controls

N/S

9.1.5 Operating Principles

A circle fluorescent tube Saloon Light(DC) is mounted on the passenger parts ceiling.
The light provide illumination for gangway area by automation.
 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-73

9.1.6 Equipment Layouts

Fig. 1B-02-05-00-70 Gangway Light Layout

Fig. 1B-02-05-00-70 shows the general Layout of the Gangway Light.

9.1.6.1 Principal Parts

Ballast Description
Rated Voltage : DC 110V
Rated Power : 18W
Supply Voltage Variation :
77V ~ 137.5V
TYPE : Rapid starting

Fig. 1B-02-05-00-71 Inverter Assembly

BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-74

Lamp Description
18W fluorescent tube
Width : Ø26mm
Tube type : FPL 18W

Fig. 1B-02-05-00-72 Lamp Assembly

Socket Description
Socket type : 2G11 BASE

Fig. 1B-02-05-00-73 Socket Assembly

 Volume I: Technical Manual BMRCL - Rolling Stock
Part B: Technical Descriptions of Equipment Systems Revision No: A0
Chapter 2: Structure and Vehicle Interior Fittings Date: 18-04-2011
Section 2.5: Lighting
Page: 1B-02-05-00-75

Diffuser Description
Laminated Safety glass
Opalescent interlayer diffuser
FRAME : SCP, t1.0 Paint'G
BODY : SCP, t1.0 Paint'G

Fig. 1B-02-05-00-74 Diffuser Assembly

9.1.7 Design and Performance Data

Table 1B-02-05-00-09 Performance and Design Data

Item Rated value

Measuring input Input Current 0.24 A or less

characteristics Rated Voltage 77V – 137.5VDC
Frequency 25kHz or more
The time required of 0.4 – 0.8 sec
Measuring output
Light up
characteristics
26W, including power
Power Consumption
consumption of inverter unit
Lamp FPL 18W
Design Lamp Color Temperature 3500K ~ 4500K
Diffuser Laminated Safety opal glass
BMRCL - Rolling Stock Volume I: Technical Manual
Revision No: A0 Part B: Technical Descriptions of Equipment Systems
Date: 18-04-2011 Chapter 2: Structure and Vehicle Interior Fittings
Section 2.5: Lighting
Page: 1B-02-05-00-76

THIS PAGE INTENTIONALLY LEFT BLANK