Aj
Sub: Monitoring of CA
Details of Modification
S. No.
CAI/Specification No. Item
Fire safety improvement modification in Power
RDSO Letter No. EL/0.6.2/PC/Main File
1 cars equipped with Greaves cotton make diesel
dated 28.05.2021
engines.
Provision of bellow duct made of meta/para
RDSO/PE/SPEC/AC/0197-2019(Rev.0) aramid fabric with silicon rubber coating on
2
dated 11.05.2020 both sided for RMPU for LHB type AC
coaches.
Provision of individual MPCB for water Pumps
RDSO Letter No. EL/7.1.108/ SBC/355/
3 and shifting of its controller to onboard in set of
Non-AC Coaches. dated 24.01.2023.
panels for LHB Non-AC/EOG Coaches.
Provision of additional switches to control
RDSO Letter No. EL/7.1.83/ MS Dated luggage room lights from VHF/ Charging-Box
4
23.06.2020. provided in guard’s compartment of LHB
Power cars and LSLRD.
Provision of manual isolating switch with fuse
RDSO Letter No. EL/0.6.2/DA Set dated
5 to isolate the DA Set starter motor after start of
05.04.2022.
DA set.
RCF letter no. RCF/HSQ/ED/2029 dated Shifting of smoke detector unit from engine
6
06.11.2023 room to SBC-2 in power cars
RDSO letter No. EL/1.6.9.22/HOG dated Provision of over voltage protection scheme for
7
11.07.2022 HOG supply in power cars
RDSO letter no. EL/6.8.21/TL-AC Provisions to stop rodent entry in SBC panel of
8
committee dated 11.05.2023 coaches
RCF letter no. RCF/ED/HSQ/ RB/2010 Modification in wiring scheme of LHB non-AC
9 dated 28.12.2023 (ED/CAI/026, 027 & coaches manufactured at RCF during 2011 &
028) 2012
Segregation of 110V DC (+ve & -ve) at all
RCF CAI no. ED/CAI/033 dated levels and provision of cage clamp terminals
10
02.04.2024 with glass fuses for enhanced fire safety in
LHB AC 2T & 3T coaches.
Up-gradation of existing switch plate
RCF letter no. RCF/HSQ/ED/ LHB/2008
11 assemblies with mobile charging sockets in
dated 04.05.2024
LHB coaches
RDSO letter no. EL/7.1.108/SBC/Main Provision of aerosol based fire extinguisher in
12
dated 07.01.2022 SBC panel of coaches.
RDSO letter no. EL/6.8.21/TL-AC-
Committee dated 11.05.2023 and LHB Guidelines for replacement of D&ED in SBC
13
maintenance manual annexure 15.6 S/N from 750V to 1000V
1(n)
Guidelines for replacement of 100 VA,
RDSO specification no. 715V/415V control transformers to 200 VA,
14
RDSO/PE/SPEC/AC/0203-2020(REV.0) 715V/415V control transformers in SBC panel
of coaches
RDSO modification sheet no.
Provision of 4.5 kW underslung REBC MCBs
RDSO/PE/MS/AC/0094-2024 (REV.0)
15 to onboard in SBC panel of LHB AC coaches
issued vide letter no. EL/7.10.1/LHB
and in LV panel in LHB non-AC coaches.
dated 21.11.2024
RDSO/PE/MS/AC/0095-2024 (REV.0), Provision of indications on-board of REBC
16 issued vide letter no. EL/7.10.1/LHB SBC panel of LHB AC coaches and in LV
dated 20.11.2024 panel in LHB non-AC coaches.
RCF CAI no. ED/CAI/024 &
ED/CAI/025 issued vide letter no. Provision of REBC in place of RBC and EBC
17
RCF/HSQ/ED/LHB/2008 dated in LHB coaches
09.10.2024
RDSO modification sheet no. Provision of additional electrical interlock of
18 RDSO/PE/MS/AC/0085-2022 (rev.0) ventilation fan unit in heater unit of RMPU in
dated 03.02.2022 SBC
Ajmer Workshop
Sub: Monitoring of CAIs/Modifications of coaches under progress.
No. of Coaches to Done during last Total Completed till
Done till date Balance
be covered month date
All eligible coach - - - -
All eligible coach - - - -
all eligble coach
All eligible coach 158 5 158 coaches
received for POH
all eligble coach
All eligible coach 13 0 13 coaches
received for POH
- - - -
- - - - -
- - - - -
- - - - -
all eligble coach
All eligible coach 1 0 1 coaches
received for POH
- - - - -
all eligble coach
All eligible coach 81 8 89
received for POH
All eligible coach - - - -
All eligible coach - - - -
All eligible coach - - - -
All eligible coach 2 Coaches - 2 Coaches
All eligible coach - - - -
All eligible coach 50 - 50 coaches -
All eligible coach - - - -
Remarks
pertains to RAC
pertains to RAC
Being ensured in 100 % eligible coaches.
Being ensured in 100 % eligible coaches.
pertains to RAC
pertains to RAC
pertains to RAC
Being ensured in 100 % eligible coaches.
Only 01 no's eligible coach is recived
pertains to RAC
Being ensured in 100 % eligible coaches.
pertains to RAC
pertains to RAC
pertains to RAC
Being ensured in 100 % eligible coaches.
work to be started
Being ensured in 100 % eligible coaches.
pertains to RAC
SSE/TL/PCO
