IN-DEPTH ANALYSIS OF SIGNAL AND TELECOM STAFF
A PRESENTATION BY CPO/ECR/HJP
ON 14.06.07 AT RAILWAY BOARD
1
ANALYSIS OF SIGNALLING STAFF
2
KEY WORDS
DESU- Divisional Equated Signalling Unit DETU- Divisional Equated Telecom Units DISTU- Divisional Integrated Signal and Telecom Units Norms of NG staff have been prepared based on above basic units.
3
YARDSTICK OF SIGNALLING STAFF
BASIC SIGNALLING STAFF DEPENDS ON NO. OF DESU (DIVISIONAL EQUATED SIGNAL UNITS)
(DIFFERENT YARDSICK FOR SUB-URBAN AND NON-SUBURBAN SECTIONS)
HEAVY REPAIR GANGS(A FACTOR OF TYPE OF SIGNALLIMG SYSTEM,
MECHANICAL, COLOUR LIGHT, AUTOMATIC, ETC)
GENERAL REPAIR GANGS (A FACTOR OF RRI INSTALLATIONS) FAILURE RESTORATION GANGS (A FACTOR OF NO. OF STATIONS
IN DIVISION)
LOCKING GANGS
ONE INSPECTOR)
(ONE LOCKING GANG PER DIV. 8 GP ‘C’, 8 GP’D’ INCLUDING
4
STUDY BASED ON BM REPORT OF RLY BOARD FOR THE YEAR 2002-03
Benchmarking of Signalling Staff - Divisions greater than 120 DISTUs
16.00
MPR (Personnel/'000 DESUs)
14.00 12.00 10.00 8.00 6.00 4.00 2.00 0.00
BB BSL NGP BP L J HS J BP HWH SDA ASN DLI ALD UMB MB LKO LJ N MAS SC BZA BSP KGP WAT CKP ADA NGP BCT KT T BRC RT M AVG.
Divisions Greater than 120 DISTUs
RETURN TO RECOMMENDATIONS
5
MPR (staff per thousand DESU) of Signalling Staff in Indian Railway Divisions – Greater than 120 DISTUs
As per the BM report, HWH Division is the Benchmark (MPR 2.66) in Indian Railways in Signalling Staff. All India Average MPR is 6.15. MPR of 8 Divisions are lower than IR Average. HWH(2.66), BB(3.06) & BSP(3.49) are the top three Divisions in MPR.
6
MPR (staff per thousand DESU) of Signalling Staff in Indian Railway Divisions – Greater than 120 DISTUs
LKO is the worst Division in MPR (14.89), which has 5.6 times more manpower than AIBM i.e. HWH Division. MPR of 19 Divisions are higher than IR Average. Even SDAH has 3.96 times staff than HWH Division within Eastern Rly. LKO(14.89), ASN(10.55) & SDA(10.54) are the worst three Divisions in MPR.
7
STUDY BASED ON BM REPORT OF RLY BOARD FOR THE YEAR 2002-03
Benchmarking of Signalling Staff - Divisions less than 120 DISTUs
25.00
MPR (Personnel/'000 DESUs)
20.00 15.00 10.00 5.00 0.00
S UR MLD BKN FZR J U BS B IZN AP D LMG KIR TS K MDU TP J P GT TVC S BC MYS GTL UBL HYB KUR S BP ALL J P RJ T BVP AVG.
Divisions - Less than 120 DISTUs
8
MPR (staff per thousand DESU) of Signalling Staff in Indian Railway Divisions – Less than 120 DISTUs
SBC Division (MPR 3.38) is the Best Benchmark in Indian Railway in Signalling Staff.
All India Average MPR is 8.85.
MPR of 10 Divisions are lower than IR Average. SBC(3.38), JU(4.95) & SBP(5.70) are the top three Divisions in MPR.
9
MPR of Signalling Staff in Indian Railway Divisions – Less than 120 DISTUs
KIR is the worst Division in MPR (19.60).
MPR of 13 Divisions is higher than IR Average. KIR has 5.8 times more manpower than AIBM i.e. SBC Division. KIR(19.60), TSK(17.03) & RJT(15.31) are the worst three Divisions in MPR.
10
MPR of Signalling Staff in ECR
MPR(Personnel/'000 DESUs)
10.00 8.00 6.00 4.00 2.00 0.00
N
8.64 6.77 6.97 5.71 5.20 6.15
DHN DNR MGS SEE SPJ
R
AV G
G S
SE E
SP J
DH
DN
IR AVG
M
IR
11
MPR of Signalling Staff in ECR
In ECR, SPJ (5.2) & SEE (5.71) is below IR Avg.(6.15) while DHN (6.77) & MGS (6.97) is slightly over IR Average. DNR has highest MPR in ECR with 8.64.
12
COMPARISON OF ECR DIVISIONS WITH THE YARDSTICK OF BOARD CIRCULATED VIDE LETTER NO. 94/E&R/1700/9(Pt) dated 30.10.2000 (SIGNALLING STAFF)
Division
Group of Staff
DHN (Actual)
As per Yardstick
DNR (Actual)
As per Yardstick
MGS (Actu al)
As per Yardstick
SEE (Actual )
As per Yardstic k
SPJ (Actual )
As per Yardstic k
DESU(in ‘000)
109
70
101
90
60
SSE, SE, JE-I & JE-II
37
50
28
32
44
46
33
41
23
27
Artisan Staff
276
236
199
158
269
214
230
190
156
146
Group 'D'
425
324
378
217
391
282
251
256
133
203
Total
738 6.77
610 5.60
605 8.64
407 5.81
704 6.97
542 5.37
514 5.71
487 5.41
312 5.20
376 6.27
MPR
Staff/'000 DESU
13
10.00
COMPARISON OF MANPOWER ACTUAL VIS-À-VIS YARDSTICK FOR ECR DIVISIONS (SIGNALLING STAFF)
8.00 6.00 4.00 2.00 0.00 DHN DNR M GS Divisions of ECR SEE SPJ
Actual Yardstic k
IN ECR, SPJ HAS LESS STAFF THAN THE YARDSTICK
14
MPR (Personnel/'000 DESUs)
Latest norms for signaling staff
Circulated vide Rly Board’s letter No. 94/E&R/1700/9(Pt.) dated 27.04.05 applicable to the assets created after 01.04.2001 Earlier norms were circulated vide Boards letter even No. dated 30.10.2000. Staff requirement shall increase with above yardstick as detailed in the next slide.
15
Comparison of yardsticks (New with old) for signaling staff As per norms Dated 30.10.2000 As per norms dated 27.04.05 % increase with the new norms
For ‘A’ and ‘B’ route of non-sub urban traffic
DESU/SI
DESU/SIG TECH DESU/KH
2188
563 425
1192
172 161
83%
227% 164%
In the new norms, DESU per unit staff has decreased; meaning thereby that the staff strength shall increase.
16
SAMPLE CALCULATION OF DESU
Unit : Sr.SE(Sig)/DOS/MGS
1MSU (MAINTENANCE STAFF UNIT)=1200 DESU Jurisdiction : SSG-CPBH No. of DESU’s : 29802 No. of DESU’s : 29802/1200 = 24.83=25 (MSU’s)
I)
Requirement for maintenance staff unit (MSU’s)
3 TECH+2 KH FOR EACH MSU
Signal Technician :03X25(MSU) = 75 Khalasi :02x25= 50 II) 1 SE/JE+1 TECH+2 KH FOR 2 MSUs SE/JE :01x13= 13 Signal Tech -03 B/Smith & H/Man -06 Fitter -04 Khalasi :02x13= 26
17
SAMPLE CALCULATION OF DESU
III) NIGHT FAILURE GANG ONE TEAM FOR 2 MSUs Signal Technician :02x13= 26 Khalasi :01x13 =13 IV) ONE SUPERVISORY TEAM FOR 4 MSUs SSE/SE 01x 6 =06 Signal Tech.02 x 6 =12 Kh. 05 x 6 =30 B/Smith 01 x 6 =06 H/Man 01 x 6 =06 T/Man 04 x 6 =24
18
SAMPLE CALCULATION OF DESU
Total requirement of staff SSE/SE/JE- 13+06=19 (LR-03, RG-03) = 19+3+3= 25 Signal Tech-75+03+26+12= 116 (LR-17, RG16)= 116+17+16=149 Kh.-50+26+13+30=119 (LR-21, RG-17) = 119+21+17=157 B/Smith +H/Man 20 Fitter 04 Trolly man 28
19
SAMPLE CALCULATION OF DESU
CALCULATION OF DESU PER STAFF TOTAL DESU OF SECTION – 29,802
DESU PER STAFF
NO. OF NO. OF STAFF WITH STAFF NEW NORM WITH OLD NORM 14 53 70 DESU PER STAFF WITH NEW NORMS 1192 172 161 DESU PER STAFF AS PER OLD NORMS 2188 563 425 % INCREASE IN NEW NORMS 83% 227% 164%
CATEGOR Y
SUPERVIS 25 OR TECH GP’D’ 173 185
RETURN TO RECOMMENDATIONS 20
ANALYSIS OF TELECOM STAFF
21
STUDY BASED ON BM REPORT OF RLY BOARD FOR THE YEAR 2002-03
MPR of Telcom Staff - Divisions greater than 120 DISTUs
16.00
MPR (Personnel/'000 DETUs)
14.00 12.00 10.00 8.00 6.00 4.00 2.00 0.00
BB BSL NGP BP L J HS J BP HWH SDA ASN DLI ALD UMB MB LKO LJ N MAS SC BZA BSP KGP WAT CKP ADA NGP BCT KT T BRC RT M AVG.
Divisions - Greater than 120 DISTUs
22
MPR (Staff per thousand DETU) of Telecom Staff in Indian Railway Divisions – Greater than 120 DISTUs
BSL Division (MPR 0.94) is the Benchmark in Indian Railway in All India Average MPR is 4.18.
MPR of 7 divisions is lower than IR Average.
BSL(0.94), NGP(1.42) & DLI(1.89) are the top three Divisions in MPR.
23
MPR (Staff per thousand DETU) of Telecom Staff in Indian Railway Divisions – Greater than 120 DISTUs
KTT is the worst Division in MPR (14.81), which has 15.75 times more manpower than AIBM i.e. BSL Division.
MPR of 19 Divisions is higher than IR Average.
KTT(14.81), SDAH (12.51) & BCT(11.68) are the three worst Divisions in MPR.
24
STUDY BASED ON BM REPORT OF RLY BOARD FOR THE YEAR 2002-03
MPR of Telcom Staff - Divisions less than 120 DISTUs 40.00
MPR (Personnel/'000 DETUs)
30.00 20.00 10.00 0.00
SUR MLD BKN FZR J U BSB IZN AP D LMG KIR T SK MDU T P J P GT T VC SBC MYS GT L UBL HYB KUR SBP ALL J P RJ T BVP AVG.
Divisions - Less than 120 DISTUs
25
MPR (Staff per thousand DETU) of Telecom Staff in Indian Railway Divisions – Less than 120 DISTUs
SBC Division (MPR 3.33) is the Best Benchmark in Indian Railway in Telecom Staff.
All India Average MPR is 8.64.
MPR of 14 Divisions is lower than IR Average.
SBC(3.33), UBL(4.54) & SBP(4.49) are the top three (best) Divisions in MPR.
26
MPR of Telecom Staff in Indian Railway Divisions – Less than 120 DISTUs
TSK is the worst Division in MPR (37.81), which has 11.35 times more manpower than AIBM i.e. SBC Division MPR of 14 Divisions is higher than IR Average. TSK(37.81), MYS(32.11) & BVP(27.95) are the worst three Divisions in MPR
27
MPR of Telecom Staff
MPR of Telcom Staff
MPR (Personnel/'000 DETUs)
20.00 15.00 10.00 5.00 0.00
18.17 14.52 4.68 3.36 5.88 DHN DNR MGS SEE SPJ 4.18
DHN DNR MGS SEE SPJ
IR AVG
IR AVG
28
MPR IN E.C.RAILWAY (TELECOM WING)
•IN ECR, THE MPR OF DNR, MGS, DHN, SPJ & SEE DIVISION IS 3.36, 5.88, 4.68,18.17 & 14.52 RESPECTIVELY. •MPR OF DNR DIVN(3.36) IS LESS THAN IR AVERAGE (4.18).
29
RECOMMENDATIONS
30
CONTRADICTIONS IN THE YARDSTICK OF 2000 AND 2005
AS PER THE NEW YARDSTICK, STAFF REQUIREMENT INCREASES SIGNIFICANTLY FOR ASSETS CREATED AFTER 1.04.2001. TO SORT OUT THE CONTRADICTIONS FOLLOWING SUGGESTIONS ARE MADE.
SEE SAMPLE CALCULATION
31
WORK STUDY OF EXISTING ACTIVITIES
This is required in view of introduction of new technology in S&T Dept. Men are being replaced by machine, e.g. manual recordings of events could be done through Data Loggers, which are relatively error free. This is likely to reduce the No. of Group ‘D’ staff and may increase Gp ‘C’ staff slightly. But overall, the staff strength will reduce.
32
FRESH BENCHMARKING TO BE DONE
AS PER THE BM REPORT OF 2002-03, HWH HAS THE LOWEST MANPOWER RATIO OF 2.66 STAFF PER THOUSAND DESU. RECENT FIG COLLECTED SHOWS THAT MPR OF HWH IS 7.48. NO. OF DESU WHICH HAS BEEN SHOWN AS 3,78,000 IS 1,24,000 AT PRESENT. THERE IS A HUGE (UNREALISTIC) DIFFERENCE IN THE BEST PERFORMING AND THE WORST PERFORMING DIVISIONS, WHICH SHOWS THAT THE STATISTICS TAKEN IN THE YEAR 2002 ARE NOT RELIABLE.
SEE COMPARISONS OF DIVISIONS 33
MULTI-SKILLING
In S&T Department we should go for multi-skilling of the staff by suitable training, which will make the staff more efficient and simultaneously giving greater operational flexibility in manpower utilisation. For example, the job of Painter, Carpenter & Mason may be done by one staff instead of three. This will, however, require suitable training at induction stage & Further in-service training periodically. Similarly, The categories of Blacksmith & Hammerman, whose functions are complimentary to each other, can be combined together after suitable training.
34
Requirement of Skilled Manpower
With the introduction of panel interlocking having electronically controlled microprocessor-based System, the mechanical signals are gradually decreasing. The will, in turn, reduce the staff required for the categories such as Black Smith & Hammer man.
The semi-skilled staff may be gradually replaced by Skilled staff capable of handling sophisticated equipments.
35
Technological Advancements and Reduction of Manpower
•In view of technological progress, old mannual exchanges are being replaced by modern and efficient automatic exchanges having STD facilities for direct dialing. •This has made the Telephone Operator a diminishing category. •With the coming of new Panel Interlocking, the need of locking gangs should reduce, while the need of cable gangs may go up.
36
KEEPING PACE WITH THE TECHNOLOGY
•The microwave technology is fast losing its relevance in the wake of high Bandwidth and speed offered by optical fibre cable. Hence, the staff deputed in microwave systems need to be retrained and redeployed in OFCs. •More efficient and compact Cables have taken over from overhead lines for telecom. These Linemen will also be retrained and re-deployed in the related fields such as Cable Jointer.
37
REDPLOYMENT OF MANPOWER
With the introduction of S&T gears, the work load on Traffic staff has generally reduced. For example, requirement of switchman and leverman has reduced due to panel interlocking. We require inter-departmental deployment of manpower or transfer of posts. A review of manpower requirement of all the affected departments needs to be done.
38
BETTER UTILIZATION OF MANPOWER
•The Trolleymen in Divisions are Generally attached with Officers/Supervisors. •All the Officers/Supervisors do not go on Trolley inspection simultaneously. •It is suggested that for gainful utilisation of Trolleyman, a combined pool of Trolleymen may be created. The Officers/Supervisors may take the services of Trolleymen from the combined pool while going on Trolley Inspection. •This is likely to reduce the Sanctioned Strength of Trolleymen significantly.
39
MOVE FROM UNSKILLED TO SKILLED MANPOWER
With the introduction of modern technology, the no. of S&T gears are gradually increasing This will cut down the requirement of semiskilled and unskilled staff like Khalasis & require more no. of Skilled staff capable of operating sophisticated gears.
40
AREAS OF FURTHER STUDY
‘BAD PERFORMING DIVISIONS’ SHOULD STUDY THE WORK PRACTICES OF ‘BETTER PERFORMING ONES’ AND TRY TO FINE TUNE THEIR MANPOWER. THE BASIS OF DESU AND DETU HAS TO BE EXAMINED AFRESH.
41
THANK YOU
42
UNITS OF DESU
S.No. Description of Equipment SIGNAL & SLOTS 1 2 Single wire operated semaphore/disc signal Double wire operated 2 aspect LQ or UQ semaphore/disc signal 1 1.5 Unit
3
4 5 6 7 8 9
Power operated 2 aspect LQ or UQ semaphore/disc signal
Power operated 3 aspect LQ or UQ semaphore/disc signal Double wire operated multiple aspect semaphore signal Banner repeaters each Signal arm or light repeater each Single/Double wire operated semaphore signals with reverser Electrically lit semaphore signals
2.5
3 2 2 1 1.5 4
10 11 12 13 14 15 16 17 18
Colour light signal two aspect Colour light signal multiple aspect Route indicator per route Colour/position light shunt signal and shnt permit indicators Calling on signal in CLS area Illuminated A, AG signs and guards repeater signal Auto signal/APB signal only IBS signal/midsection LC gate stop signal Slot or control for signal, point, siding, crank handle, iner cabin, station masters level crossing gate mechanical or electrical
5 6 5 4 0.5 0.5 8 10 2
43
UNITS OF DESU
TRACK CIRCUITS 19 20 21 22 23 24 Single rail DC track circuit Double rail track circuit Electronic track circuit Axle counter complete/including multi entry POINTS Electrical switch lock Key locked point 3 3 4 5 6 20
25
26 27 28
Rod worked facing point with lock
Rod worked facing point without lock/lock retaining bars Double wire operated facing point with lock Electrically operated point and lock
3
2 3 6
29
Outlying siding points
28
44
UNITS OF DESU
LEVEL CROSSING GATE 30 31 32 33 34 35 36 37 LC gate telephone only within station limits LC gate telephone only outside station limits LC gate wing gates inerlocked within station limits LC gate lifting barrier winch operated within station limits LC gate lifting barrier motor operated within station limits LC gate wing gates inerlocked outside station limits LC gate lifting barrier winch operated outside station limits LC gate lifting barrier motor operated outside station limits BLOCK INSTRUMENTS 38 39 40 Single line token block instrument per pair Single line tokenless block instrument per pair Double line token block instrument per pair 5 6 6 2 10 3 4 6 15 20 30
41
42 43
Extra weightage for RE area
Key transmitter per pair Block panel including different types of interface equipments
1
1 4 45
UNITS OF DESU
OTHER SYSTEMS 44 45 46 Route Relay/panel inerlocking equipments compete Mechanised humpyard equipment complete per classification line Mechanised humpyard retarder each Indicator boards/Shunting/Block limit, sighting and others NEW ITEMS ADDED IN THE HOD's MEETING OF ALL ZONES 48 49 Digital Axle Counter Data Logger>256 ports 5 20 2 5 50 RETURN TO PRESENTATION
47
0.5
50
51 52
Generator
Solar Panels Point to Point Telephone
25
1 1
46
CALCULATION OF DETU
S.No.
Description of Equipment Basic Unit
Unit
1(a) 1(b) 2 3
Point to point telephone circuit complete, hot lines, exch. Lines BSNL phone for all purposes Small/medium capacity manual tele. Exch. Complete per tele cct. Auto telephone exchange per i. Electromechanical exch. ii. Electronics exch. wired capacity iii. ACD systems. Cable systems/subscriber, including both indoor and outdoor equipt.
1 1 1.5
4 3 3 5
4
Trunk tele. Exch. Punctuality board of conference per truck cct, IVRS system per line
47
CALCULATION OF DETU
Wireless System 5 6 7 8 9 10 11 12 13 Stackable carrier per channel HF receiver all type each HF transmitter all types less than 100 W. HF transmitter all types 100 W to 500 W each. HF transmitter all types more than 100 W. VHF simplex trans-receiver walkie-talkie (up to 5W) VHF simplex trans-receiver walkie-talkie mobile or stationary (more than 5W) (UEC sets not to be included.) (up to 5W) VHF duplex trans receiver walkie-talkie cardless tele (train radio mobile sent sets not to be included) VHF duplex trans receiver walkie-talkie mobile or stationary Telegraph and Teleprinter circuit 10 15 30 50 100 5 10 7 12
14
15 16 17 18
Telegraph circuit end to end (OH)
Telegraph circuit end to end (UG) Teleprinters per instrument Auto transmitter, message switching system per port (including standby) Reperfarators for teleprinters
1
2 25 15 15
48
CALCULATION OF DETU
Train Traffic Control 19 20 21 Control telephone cct complete-2 wire(P&T) and RLY owned overhead per tapping with ringing arrangement Control telephone cct complete-2 wire(P&T) and RLY owned overhead per tapping without ringing arrangement Control tele. Circuit complete 4 wire U/G cable per tapping with ringing arrangement (P&T and RLY owned) Control tele. Circuit complete 4 wire U/G cable per tapping with ringing arrangement (P&T and RLY owned) Portable control telephone Emergency telephone socket 4 w/2w junction equipt per eqpt. 5 1 8
22
23 24 25
6
1 1 10
26
27
Radio patch for control per patch point per circuit. Test room equpt to be includ3ed ( P&T and Rly.)
VF repeater including ringing generator per AMP including spare
5
20
49
CALCULATION OF DETU
Miscellaneous 28 29 30 31 32 33 34 35 36 37 38 39 40 Clock mechanical or polsynatic (master each) Clock mechanical or polysynatic slave Clock quartz (all office clock) Clock electronic including clock provided on platform Call bell/lumination indication Loud speaker instrument complete all type per loud speaker (all PA conference and talkback systgem avaible on the Rly. (a) Plateform train indicator installations complete electrical per line (b) Plateform train indicator installations complete electronic per line face to face and other enquiry system LED/VDU based oper VDU television, VCR (a) Additional units for Railway maintained traffic control or block overhead arial alligment per cct km (b) Additional units for Railway maintained traffic control including CTC or block cable per quad km Auto announcement system (PC or micrprocessor based) FAX Machine, SPTM's per printing unit Satellite phone Genetor set (orther than provided in MW/UHF station) 2 1 0.5 3 0.5 1 8 8 1 0.75 25 10 25
41
(a) Universal emergency communication Trunking radio system (b) Full dupled train radio system
20 120 20
42 43 44 45
Loco equipment train radio system (both UEC and full duplex train radio) Optical fibre cable system Data modem analoge and digital Railnet per port of LAN connection
5 3
50
CALCULATION OF DETU
PASSENGER RESERVATION SYSTEM Statmux eqpt per port (connected to DOT or 46 DOT/Rly channel stand by mode) Magneto telephone at level crossing gate 47 Maintained by tele staff (a) Within station limits (b) Outside station limites 2 10 1.5
51
CALCULATION OF DETU
ANNEXURE - B 1. OPTICAL FIBRE 8.1 8.2 8.3 8.4 8.5 2 MBPS OLTE 8 MBPS OLTE 34 MBPS OLTE 2 MBPS OLTE Generator 8 MBPS OLTE Generator 9. DIGITAL EQPT 2.1 2.1 2.1 2.1 2.1 2.2 2.2 PRIMARY MUX (TERMINAL) PRIMARY d/I MUX WITHOUT OMNIBUS PRIMARY d/I MUX WITH OMNIBUS SECOND ORDER MUX THIRD ORDER MUX THIRD ORDER SKIP MUX DIGITAL CROSS CONNECTION 20 25 30 25 25 50 50 25 25 50 40 40
2.2
8 MBPS OPT MUX
40
52
CALCULATION OF DETU
CHANNEL INTERFACE 3.1 3.2 3.3 3.4 UPTO 10 CHANNEL UPTO 11-20 CHANNEL UPTO 21-30 CHANNEL 2 MBPS INTER CONNECTION NETWORK MANAGEMENT SYSTEM COMPLETE SDH SYSTEM 5.5 5.6 5.7 5.8 STM-1 TERMINAL EQPT STM-1 ADD/DROP EQPT STM-4 TERMINAL EQPT STM-4 ADD/DROP EQPT CABLE 6.5 6.6 OPTICAL CABLE WITH UPTO 8 FIBER PER KM OPTICAL CABLE WITH MORE THAN 8 FIBER PER KM 5 10 200 300
RETURN TO MAIN PRESENTATION
25 30 40 20
400 600
6.7
QUAD CABLE PER QUAD KM
OTHER EQPT USED OFC SYSTEM
0.5
1 2 3
2W WAY-SIDE CONTROL EQPT 4W WAY-SIDE CONTROL EQPT RAILWAY MAINTAINED CABLE PER CCT/KM
5 8 0.75 53
4
GROUP TELEPHONE
1