Precommissioning Check Led Signal Document
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- Words: 1,874
- Pages: 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals Name of Station: I. GENERAL Sl. No. Check Points 1. General Requirements i. LED signals are procured from RDSO approved sources with RDSO inspection. ii. Installation/maintenance staff is trained at manufacturer’s premises. iii. Meter used for measurement in case of AC power supply iv. LED signal lighting units have undergone Burn-in for 72 hours before putting into use. v. Rating of fuse used in signal lighting circuit. vi. Current regulators (CRs) of Main signals have been configured in Blanking mode for OFF aspects and Non-Blanking mode for ON aspects. vii. HMU alongwith audio-visual alarm unit has been provided for Main signals- HMU in relay room and audio-visual alarm unit in ASM’s room. viii. HMU is not provided for other than Main signals. 2. ECR For Use i. LED ECR (preferable) is used for all signal aspects ii. Conventional ECR, if used, is as given belowMake Convl. ECR Suitability with LED Signals ABB ON–Metal to Metal Main & C-ON signals only Siemens OFF–Metal to Metal CGL ON–Metal to Carbon All signals Hytronics iii. 3. i. ii. iii. Date:
Individual ECR is used for every signal aspect. Circuit Requirement for Main LED Signals Signalling circuit is such that in case of failure of an aspect, more restrictive aspect starts lighting i.e. cutting-in of aspects provided. Red lamp protection provided Every aspect has individual return path.
Requirement
Actual At Site
YES YES True RMS YES 600 mA YES YES YES YES If used, to be as per Main signals: table as given in previous column Route Indicator: Shunt signal: C-ON signal: YES YES YES YES
Signature Name & Designation of Inspecting Official
Page 1 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Pre Commissioning Check List For LED Signals II. CHECKS FOR MAIN LED SIGNALS Signal No. & Aspect (e.g. 1-R, 1-Y,….) Sl. Check Points Requirement No. 1. 2. 3. i.
ii.
iii. iv.
v.
Version no.: 1
Remarks
Input voltage available to > 95 V signal aspect on load at site Voltage fed to Power Supply 22 -26 V DC, of HMU for Main signals, as > 95 V AC, as applicable per manufacturer’s manual Jumper Selection and Wiring Termination Proper Jumper selection and Jumper Selection: wire termination on CR is (i) Blanking/Non-Blanking done as per manufacturer’s (Blanking mode for OFF manual, as applicable aspects, Non-Blanking mode for ON aspects) (ii) ECR type : AC LED, AC conventional, or DC LED (iii) Power supply: AC or DC Proper Jumper selection and Jumper Selection: wire termination in HMU is (i) ECR type : AC LED, done as per manufacturer’s AC conventional, or DC manual, as applicable LED (ii) Power supply: AC or DC Terminations on CR & HMU YES are proper and properly tight. Inter connecting cable YES between CR & LED signal lighting unit is properly connected & tight. Mounting screws of LED YES signal lighting unit, CR & HMU are properly tight. Date:
Signature Name & Designation of Inspecting Official Page 2 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals Sl. No.
Check Points
Requirement
4. i(a).
Check For HMU, Audio Visual Alarm & Correspondence of ECR. After taking off an aspect, (i) Aspect at site extinguishes disconnect inter connecting & more restrictive aspect cable between CR & LED lights (In case of Red signal lighting unit from LED aspect, signal in rear goes signal lighting unit to danger). (In case there are 2 (ii) Aspect fail status appears interconnecting cables between in HMU as per CR & LED signal lighting manufacturer’s manual. unit- Disconnect the cable (iii) Audio visual alarm appears other than optical sensing in audio visual alarm unit cable. The cable with 2 pin in ASM’s room. connector is optical sensing (iv) On acknowledgement, cable) audio alarm silences but visual alarm continues. (v) ECR of the aspect drops.
i(b).
Reconnect disconnected cable (i) and take off the aspect again (ii) (iii)
Date:
Signal No. & Aspect (e.g. 1-R, 1-Y,….)
Remarks
Aspect at site lights normal. Aspect OK indication lights in HMU. ECR of the aspect picks up.
Signature Name & Designation of Inspecting Official
Page 3 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
Sl. No. 4. ii. (a).
ii. (b).
Check Points
Requirement
Signal No. & Aspect (e.g. 1-R, 1-Y,….)
Remarks
Check For HMU, Audio Visual Alarm & Correspondence of ECR. (Applicable in case there are 2 interconnecting cables between CR & LED signal lighting unit- Sanarti & Power Tech. makes) Disconnect the optical (i.) In case CR is configured for sensing cable (i.e. the Non-Blanking mode - Aspect at cable with 2 pin site lights with deteriorated connector) from LED illumination with input current of signal lighting unit CR restricted to 40 mA. In Blanking mode - Aspect at site extinguishes (ii) More restrictive aspect lights (In case of Red aspect, signal in rear goes to danger). (iii) Aspect fail status appears in HMU as per manufacturer’s manual. (iv) Audio visual alarm appears in audio visual alarm unit in ASM’s room. (vi) On acknowledgement, audio alarm silences but visual alarm continues. (vi) ECR of the aspect drops. Reconnect disconnected cable
Date:
(i) Aspect at site lights normal. (ii) Aspect OK indication lights in HMU. (iii) ECR of the aspect picks up. Signature Name & Designation of Inspecting Official Page 4 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
Sl. No.
Check Points
Requirement
4. iii. (a).
After taking off an aspect, remove fuse from its aspect monitoring card in HMU
(i) Aspect at site extinguishes & more restrictive aspect lights (In case of Red aspect, signal in rear goes to danger). (ii) Aspect fail status appears in HMU as per manufacturer’s manual.. (iii) Audio visual alarm appears in audio visual alarm unit in ASM’s room. (iv) On acknowledgement, audio alarm silences but visual alarm continues. (v) ECR drops.
4. iii. (b)
Restore fuse
(i) Aspect at site lights normal. (ii) Aspect OK indication lights in HMU. (iii) ECR of the aspect picks up.
Date:
Signal No. & Aspect (e.g. 1-R, 1-Y,….)
Remarks
Signature Name & Designation of Inspecting Official
Page 5 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
Sl. No. 4. iv. (a).
Check Points After taking off an (i) aspect, remove fuse from power supply (ii) card of HMU (iii)
(iv)
(v) 4. iv. (b).
Restore fuse
Date:
Signal No. & Aspect (e.g. 1-R, 1-Y,….)
Requirement
Remarks
Aspect at site lights normal. All indications of HMU extinguish. Audio visual alarm appears in audio visual alarm unit in ASM’s room. On acknowledgement, audio alarm silences but visual alarm continues. ECR remains pick up.
All indications pertaining to normal status of HMU reappear.
Signature Name & Designation of Inspecting Official
Page 6 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
III. CHECKS FOR LED SIGNALS OTHER THAN MAIN SIGNALS Sl. No. 1. 2.
Check Points
Requirement
Remarks
Input voltage available to > 95 V signal aspect on load at site Jumper Selection and Wiring Termination
i.
Proper Jumper selection and wire termination is done on LED signal lighting units as per manufacturer’s manual, as applicable
ii.
Terminations on LED signal YES lighting unit are proper and properly tight. Mounting screws of LED YES signal lighting unit are properly tight.
iii.
Signal type & No. (e.g. Sh. 25, CO-2,…. )
Date:
Jumper Selection: (i) ECR type : AC LED, AC conventional or DC LED (ii) Power supply: AC or DC
Signature Name & Designation of Inspecting Official
Page 7 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
Sl. No. 3. i. a. i. b. ii. a. ii. b. iii. a. iii. b. iv. a. iv. b. v. a. v. b.
Check Points
Requirement
Signal type & No. (e.g. Sh. 25 etc. )
Remarks
Performance Test For Shunt Signal Performance of shunt signal ON Aspect with two shunt lighting units and ECR in cct. OFF Aspect
ECR ↑
Performance of shunt signal ON Aspect with only pilot lamp unit and ECR in cct. (The other shunt OFF Aspect lighting unit to be disconnected) Reconnect the disconnected ON Aspect shunt lighting unit OFF Aspect
ECR ↓
Performance of shunt signal ON Aspect with shunt lighting unit other than pilot lamp and ECR in cct. OFF Aspect (Pilot lamp unit to be disconnected) Reconnect the disconnected ON Aspect pilot lamp unit OFF Aspect
ECR ↓
Date:
ECR ↑
ECR ↓ ECR ↑ ECR ↑
ECR ↓ ECR ↑ ECR ↑
Signature Name & Designation of Inspecting Official
Page 8 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
Sl. No. 4.
Check Points
Requirement
Signal No.
Signal No.
Signal No.
Signal No.
Remarks
Performance Test For Route Indicator After taking off Route Indicator with ECR in cct.
i.
Disconnect any one Route lighting unit
ECR ↑
ii.
Disconnect one more Route lighting unit (Total two Route lighting units disconnected) Disconnect one more Route lighting unit (Total three Route lighting units disconnected) Reconnect any two disconnected Route lighting units Reconnect remaining third disconnected Route lighting unit
ECR ↑
iii. iv. v.
Date:
ECR ↓ ECR ↑ ECR ↑
Signature Name & Designation of Inspecting Official
Page 9 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
DO’s and DON’Ts for LED Signal DO’s
DON’Ts
1.
Use 600 mA fuse in signaling circuit.
1.
Don’t leave loose connectors between LED signal lighting unit and current regulator. This may cause false operation.
2.
Select Blanking mode for OFF aspects and Non Blanking mode for ON aspects in current regulator of Main LED signals.
2.
Don’t leave loose wires on input terminals of LED signal lighting unit and current regulator. This may cause false operation.
Ensure all terminations in CT rack, Junction Box, LED signal lighting unit, current regulator and HMU are tight and clean.
3.
Don’t connect wires at wrong input terminals for AC/DC power supply.
3.
4.
Polycarbonate cover of LED signal lighting unit may be cleaned with soft and anti static cloth periodically.
4.
Don’t try to interchange connections of LED signal lighting unit, current regulator or HMU.
5.
Check installation once a year by disconnecting the interconnecting cable between CR & LED signal lighting unit of main signal to check audio-visual alarm and correspondence of ECR.
5.
Don’t use fuse of more than 600 mA rating in signalling circuit.
6.
Don’t try to give direct supply to the LED signal lighting unit of main signals.
7.
Don’t carry current regulator by its cable.
8.
Don’t carry hanging LED signal lighting unit connected with current regulator.
9.
Don’t insert or remove cards/units when system is ON.
6.
Ensure upgradation / modification, if any, as advised by RDSO.
----x---Page 10 of 10
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals Name of Station: I. GENERAL Sl. No. Check Points 1. General Requirements i. LED signals are procured from RDSO approved sources with RDSO inspection. ii. Installation/maintenance staff is trained at manufacturer’s premises. iii. Meter used for measurement in case of AC power supply iv. LED signal lighting units have undergone Burn-in for 72 hours before putting into use. v. Rating of fuse used in signal lighting circuit. vi. Current regulators (CRs) of Main signals have been configured in Blanking mode for OFF aspects and Non-Blanking mode for ON aspects. vii. HMU alongwith audio-visual alarm unit has been provided for Main signals- HMU in relay room and audio-visual alarm unit in ASM’s room. viii. HMU is not provided for other than Main signals. 2. ECR For Use i. LED ECR (preferable) is used for all signal aspects ii. Conventional ECR, if used, is as given belowMake Convl. ECR Suitability with LED Signals ABB ON–Metal to Metal Main & C-ON signals only Siemens OFF–Metal to Metal CGL ON–Metal to Carbon All signals Hytronics iii. 3. i. ii. iii. Date:
Individual ECR is used for every signal aspect. Circuit Requirement for Main LED Signals Signalling circuit is such that in case of failure of an aspect, more restrictive aspect starts lighting i.e. cutting-in of aspects provided. Red lamp protection provided Every aspect has individual return path.
Requirement
Actual At Site
YES YES True RMS YES 600 mA YES YES YES YES If used, to be as per Main signals: table as given in previous column Route Indicator: Shunt signal: C-ON signal: YES YES YES YES
Signature Name & Designation of Inspecting Official
Page 1 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Pre Commissioning Check List For LED Signals II. CHECKS FOR MAIN LED SIGNALS Signal No. & Aspect (e.g. 1-R, 1-Y,….) Sl. Check Points Requirement No. 1. 2. 3. i.
ii.
iii. iv.
v.
Version no.: 1
Remarks
Input voltage available to > 95 V signal aspect on load at site Voltage fed to Power Supply 22 -26 V DC, of HMU for Main signals, as > 95 V AC, as applicable per manufacturer’s manual Jumper Selection and Wiring Termination Proper Jumper selection and Jumper Selection: wire termination on CR is (i) Blanking/Non-Blanking done as per manufacturer’s (Blanking mode for OFF manual, as applicable aspects, Non-Blanking mode for ON aspects) (ii) ECR type : AC LED, AC conventional, or DC LED (iii) Power supply: AC or DC Proper Jumper selection and Jumper Selection: wire termination in HMU is (i) ECR type : AC LED, done as per manufacturer’s AC conventional, or DC manual, as applicable LED (ii) Power supply: AC or DC Terminations on CR & HMU YES are proper and properly tight. Inter connecting cable YES between CR & LED signal lighting unit is properly connected & tight. Mounting screws of LED YES signal lighting unit, CR & HMU are properly tight. Date:
Signature Name & Designation of Inspecting Official Page 2 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals Sl. No.
Check Points
Requirement
4. i(a).
Check For HMU, Audio Visual Alarm & Correspondence of ECR. After taking off an aspect, (i) Aspect at site extinguishes disconnect inter connecting & more restrictive aspect cable between CR & LED lights (In case of Red signal lighting unit from LED aspect, signal in rear goes signal lighting unit to danger). (In case there are 2 (ii) Aspect fail status appears interconnecting cables between in HMU as per CR & LED signal lighting manufacturer’s manual. unit- Disconnect the cable (iii) Audio visual alarm appears other than optical sensing in audio visual alarm unit cable. The cable with 2 pin in ASM’s room. connector is optical sensing (iv) On acknowledgement, cable) audio alarm silences but visual alarm continues. (v) ECR of the aspect drops.
i(b).
Reconnect disconnected cable (i) and take off the aspect again (ii) (iii)
Date:
Signal No. & Aspect (e.g. 1-R, 1-Y,….)
Remarks
Aspect at site lights normal. Aspect OK indication lights in HMU. ECR of the aspect picks up.
Signature Name & Designation of Inspecting Official
Page 3 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
Sl. No. 4. ii. (a).
ii. (b).
Check Points
Requirement
Signal No. & Aspect (e.g. 1-R, 1-Y,….)
Remarks
Check For HMU, Audio Visual Alarm & Correspondence of ECR. (Applicable in case there are 2 interconnecting cables between CR & LED signal lighting unit- Sanarti & Power Tech. makes) Disconnect the optical (i.) In case CR is configured for sensing cable (i.e. the Non-Blanking mode - Aspect at cable with 2 pin site lights with deteriorated connector) from LED illumination with input current of signal lighting unit CR restricted to 40 mA. In Blanking mode - Aspect at site extinguishes (ii) More restrictive aspect lights (In case of Red aspect, signal in rear goes to danger). (iii) Aspect fail status appears in HMU as per manufacturer’s manual. (iv) Audio visual alarm appears in audio visual alarm unit in ASM’s room. (vi) On acknowledgement, audio alarm silences but visual alarm continues. (vi) ECR of the aspect drops. Reconnect disconnected cable
Date:
(i) Aspect at site lights normal. (ii) Aspect OK indication lights in HMU. (iii) ECR of the aspect picks up. Signature Name & Designation of Inspecting Official Page 4 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
Sl. No.
Check Points
Requirement
4. iii. (a).
After taking off an aspect, remove fuse from its aspect monitoring card in HMU
(i) Aspect at site extinguishes & more restrictive aspect lights (In case of Red aspect, signal in rear goes to danger). (ii) Aspect fail status appears in HMU as per manufacturer’s manual.. (iii) Audio visual alarm appears in audio visual alarm unit in ASM’s room. (iv) On acknowledgement, audio alarm silences but visual alarm continues. (v) ECR drops.
4. iii. (b)
Restore fuse
(i) Aspect at site lights normal. (ii) Aspect OK indication lights in HMU. (iii) ECR of the aspect picks up.
Date:
Signal No. & Aspect (e.g. 1-R, 1-Y,….)
Remarks
Signature Name & Designation of Inspecting Official
Page 5 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
Sl. No. 4. iv. (a).
Check Points After taking off an (i) aspect, remove fuse from power supply (ii) card of HMU (iii)
(iv)
(v) 4. iv. (b).
Restore fuse
Date:
Signal No. & Aspect (e.g. 1-R, 1-Y,….)
Requirement
Remarks
Aspect at site lights normal. All indications of HMU extinguish. Audio visual alarm appears in audio visual alarm unit in ASM’s room. On acknowledgement, audio alarm silences but visual alarm continues. ECR remains pick up.
All indications pertaining to normal status of HMU reappear.
Signature Name & Designation of Inspecting Official
Page 6 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
III. CHECKS FOR LED SIGNALS OTHER THAN MAIN SIGNALS Sl. No. 1. 2.
Check Points
Requirement
Remarks
Input voltage available to > 95 V signal aspect on load at site Jumper Selection and Wiring Termination
i.
Proper Jumper selection and wire termination is done on LED signal lighting units as per manufacturer’s manual, as applicable
ii.
Terminations on LED signal YES lighting unit are proper and properly tight. Mounting screws of LED YES signal lighting unit are properly tight.
iii.
Signal type & No. (e.g. Sh. 25, CO-2,…. )
Date:
Jumper Selection: (i) ECR type : AC LED, AC conventional or DC LED (ii) Power supply: AC or DC
Signature Name & Designation of Inspecting Official
Page 7 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
Sl. No. 3. i. a. i. b. ii. a. ii. b. iii. a. iii. b. iv. a. iv. b. v. a. v. b.
Check Points
Requirement
Signal type & No. (e.g. Sh. 25 etc. )
Remarks
Performance Test For Shunt Signal Performance of shunt signal ON Aspect with two shunt lighting units and ECR in cct. OFF Aspect
ECR ↑
Performance of shunt signal ON Aspect with only pilot lamp unit and ECR in cct. (The other shunt OFF Aspect lighting unit to be disconnected) Reconnect the disconnected ON Aspect shunt lighting unit OFF Aspect
ECR ↓
Performance of shunt signal ON Aspect with shunt lighting unit other than pilot lamp and ECR in cct. OFF Aspect (Pilot lamp unit to be disconnected) Reconnect the disconnected ON Aspect pilot lamp unit OFF Aspect
ECR ↓
Date:
ECR ↑
ECR ↓ ECR ↑ ECR ↑
ECR ↓ ECR ↑ ECR ↑
Signature Name & Designation of Inspecting Official
Page 8 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
Sl. No. 4.
Check Points
Requirement
Signal No.
Signal No.
Signal No.
Signal No.
Remarks
Performance Test For Route Indicator After taking off Route Indicator with ECR in cct.
i.
Disconnect any one Route lighting unit
ECR ↑
ii.
Disconnect one more Route lighting unit (Total two Route lighting units disconnected) Disconnect one more Route lighting unit (Total three Route lighting units disconnected) Reconnect any two disconnected Route lighting units Reconnect remaining third disconnected Route lighting unit
ECR ↑
iii. iv. v.
Date:
ECR ↓ ECR ↑ ECR ↑
Signature Name & Designation of Inspecting Official
Page 9 of 10
Date of preparation: March 2005
Format no.: SIG-0201
Version no.: 1
Pre Commissioning Check List For LED Signals
DO’s and DON’Ts for LED Signal DO’s
DON’Ts
1.
Use 600 mA fuse in signaling circuit.
1.
Don’t leave loose connectors between LED signal lighting unit and current regulator. This may cause false operation.
2.
Select Blanking mode for OFF aspects and Non Blanking mode for ON aspects in current regulator of Main LED signals.
2.
Don’t leave loose wires on input terminals of LED signal lighting unit and current regulator. This may cause false operation.
Ensure all terminations in CT rack, Junction Box, LED signal lighting unit, current regulator and HMU are tight and clean.
3.
Don’t connect wires at wrong input terminals for AC/DC power supply.
3.
4.
Polycarbonate cover of LED signal lighting unit may be cleaned with soft and anti static cloth periodically.
4.
Don’t try to interchange connections of LED signal lighting unit, current regulator or HMU.
5.
Check installation once a year by disconnecting the interconnecting cable between CR & LED signal lighting unit of main signal to check audio-visual alarm and correspondence of ECR.
5.
Don’t use fuse of more than 600 mA rating in signalling circuit.
6.
Don’t try to give direct supply to the LED signal lighting unit of main signals.
7.
Don’t carry current regulator by its cable.
8.
Don’t carry hanging LED signal lighting unit connected with current regulator.
9.
Don’t insert or remove cards/units when system is ON.
6.
Ensure upgradation / modification, if any, as advised by RDSO.
----x---Page 10 of 10
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