SUB STATION
ESTIMATE
ESTIMATE
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1
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Providing
following GI pole fabricated with GI pipe complete with GI sockets, M.S. base
plate, top cover, necessary welding as required:-
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a.
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Total
10668 mm (35’'-0") long having 152.4 mm (6") dia 7620 mm (25') at
the bottom, and 101.60 mm (4") dia 3048 mm (10') at the top with 609 mm
x 609 mm x 6.35 mm (2'-0" x 2'-0" x 0’-0. 25") size steel base
plate.
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2
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Nos.
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2
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Erection
of following tubular pole upto 1828.80 mm (6’) depth by placing the pole base
on one layer of Ist. class brick flat soling over 76.2 mm (3") sand
bedding and making 1:2:4 C.C. work around the pole 304.8 mm (1'-0") below GL & 304.8
mm(1’ ft) above GL, 12.5 mm (1/2") thick cement plaster with neat cement
finishing over concrete surface including proper curing, excavation &
refilling and ramming the loose soil etc. as required.
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a.
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10668 mm
(35’) long MS/GI /SpunP.C pole with 457.20 mm x 457.20 mm (1.5’x1.5’) cc work
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2
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Nos.
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3
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Providing
& fixing U-channel iron cross-arm of size 38 mm x 76 mm x 38 mm x 6.35mm.
(1.5" x 3" x 1.5" x 0.25") on single pole / H-pole with
the help of necessary clamps, nuts, bolts etc. including making required no.
of holes on the cross-arm for fixing of drop out fuse, lightning arrester
including two coats of superior
quality aluminum painting over required prime coat of anti corrosive
red-oxide painting complete as required
& as per instruction of the Engineer-in-charge.
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20
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Mtrs.
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4
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THREE
PHASE OIL TYPE TRANSFORMER
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Supply of
following oil-immersed, natural air cooled, 3-phase, 50-Hz, 11KV/0.415 KV
& 0.24 KV outdoor type distribution transformer of DYN11 vector group complete with two
windings of high conductivity copper having percentage impedance 4 - 6.5%,
basic impulse insulation level 75 KV , Dielectric strength 28 KV (for 1
min), HT & LV porcelain bushings,
manual 5 position standard tap changer, conservator, thermometer, oil inlet
& outlet valves, oil level indicator, dehydrating breather, lifting lugs,
earthing terminals, wheel, data plate etc. in/c painting, suitable for
operation at 40°C ambient temperature with maximum temperature rise 60°C,
locally manufactured and tested in Bangladesh as per NEMA/VDE/IEC/BS
standards:
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(a)
Capacity: 1500/1600 KVA with buchholz relay.
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(b) No
load loss: 2200 watts (Maximum)
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(c) Full
load loss: 18000 watts (Maximum)
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Manufactured
by the valid ISO-9001 certified company having test certificate for the
required or higher capacity of transformer
according to relevant IEC standards from BUET/CUET /DUET/ KUET/RUET.
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1
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No.
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5
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Installation,
testing and commissioning of following 11 KV/.415KV transformer on prepared platform on pole / c.c. foundation with the help of
necessary tools & plants. skilled labour & technician as per
direction of the Engineer-in-charge.
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a.
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1250-1600
KVA3 phase transformer on C.C. pad
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1
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Job.
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6
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Supply of
11 KV, 3-phase, 50 Hz, indoor type, high tension switchgear complete with Vacuum/SF6
Circuit Breaker, 800 Amps hard-drawn electrolytic copper bus-bars, 1 No 0 -
15 KV range voltmeter & 1 no. ammeter of adequate range both with
selector switch, 1 no. of panel heater with auto thermostat control switch,
manual ON & OFF push button switch and ON-OFF-TRIP indicators including
following components (components such as VCB, CT, PT, microprocessor
controlled IDMT relay shall be manufactured
according to relevant NEMA/VDE/IEC/JIS/BS Standards and shall have
type test certificate according to relevant IEC Standard) assembled locally in 14 SWG sheet steel
metal clad, dust & vermin proof, free standing, floor mounting, epoxy
resin powder coat painted cabinet as
per relevant IEC standards and as per approval & acceptance of the
Engineer.
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With
withdrawable type Vacuum/SF6 Circuit Breaker.
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(i)
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1 Set of
11KV, 630 Amps (20KA), 3-phase, 50 Hz,
trolley mounted fully withdrawable type Vacuum/SF6 Circuit Breaker
complete with motor operated spring charged stored energy mechanism for auto
tripping at 12/24/48/110 volts D.C (without battery)
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(ii)
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2 Nos. 11
KV, cast resin insulated, dry type; double pole PT having ratio 11/0. 11,
burden 50VA, class 0.5 for metering &
protection.
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(iii)
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3 Nos. 11
KV cast resin insulated, dry type, double core CT of adequate current ratio
(compatible with the transformer capacity), burden 10-15 VA, first core of
class 0.5 M5 for metering and second core of class 10P10 for protection.
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(iv)
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1 No of
Triple pole solid-state microprocessor control IDMT relay with 2 elements of
over current and short circuit protection and one for earth fault protection.
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(v)
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1
No. 415V, 6A (10KA) TPMCB for PT secondary protection.
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Assembled
by the valid ISO-9001 certified company having test certificate according to
relevant IEC standards from BUET/CUET/DUET/KUET/RUET.
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1
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No.
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7
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Installations,
testing and commissioning of following 11 KV, 50 Hz. 3-phase, indoor
type HT switchgear on prepared
foundation with the help of necessary
tools, plants, skilled labour & technician as per direction of the Engineer-in-charge.
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a.
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With
withdrawable type Vacuum/SF6 Circuit breaker
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1
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Job
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8
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LT
SWITCH GEAR
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Supply
of 415 V, 3-phase, 50 Hz, indoor type low tension switch-gear of following
specification complete with voltmeter (0 - 500V) & ammeter of adequate
rating both with selector switch, indicating lamps for ON - OFF and following
components (components such as TPMCCBs shall be manufactured according to relevant NEMA/VDE/IEC/JIS/BS
Standards and shall have type test certificate according to relevant IEC
Standard) assembled locally in 14 SWG
sheet steel metal clad, dust & vermin proof, free standing, floor
mounting, epoxy resin powder coat
painted cabinet as per relevant IEC standards and as per approval &
acceptance of the Engineer.
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For 1500
/1600 KVA Transformer:
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INCOMING :
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1 Set -
415V, 3000 amp. TP&NE hard drawn electrolytic copper busbar.
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1
No.-415V, 2200A (80KA), adjustable type TPMCCB / ACB for main control with
thermal overload & instantaneous electro-magnetic short circuit release.
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3 Nos.
-415V, 2500/5 ratio current transformer with suitable accuracy & burden.
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OUTGOING :
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1 No. -
415V, 1600A (80KA) adjustable type TPMCCB with instantaneous electro-magnetic
short circuit release (for PFI
control).
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1 No. -
415V, 600A (50KA) adjustable type TPMCCB with instantaneous electro-magnetic
short circuit release.
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2 Nos. -
415V, 400A (35KA) adjustable type TPMCCB with thermal overload & instantaneous
electro-magnetic short circuit release.
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4 Nos. -
415V, 300/320A (35KA) adjustable type TPMCCB with thermal overload &
instantaneous electro-magnetic short circuit release.
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1 No. -
415V, 250A (35KA) adjustable type TPMCCB with thermal overload &
instantaneous electro-magnetic short circuit release.
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2 Nos. -
415V, 200A (25KA) adjustable type TPMCCB with thermal overload &
instantaneous electro-magnetic short circuit release.
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1 No. -
415V, 100A (16KA) adjustable type TPMCCB with thermal overload &
instantaneous electro-magnetic short circuit release.
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1 No. - 415V, 30/32A (16KA) TPMCCB with
thermal overload & instantaneous electro-magnetic short circuit release.
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Assembled
by the valid ISO-9001 certified company having test certificate according to
relevant IEC standards from BUET/CUET/DUET/KUET/RUET.
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1
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No.
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9
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POWER
FACTOR IMPROVEMENT PANEL
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Supply of
following 415 volt, 3 phase, 50 Hz power factor improvement panel complete
with TP busbars and earth block, micro processor controlled auto power factor
correction relay with digital PF reading display, capacitor bank, contactor,
fuse, ON indicators for every stage of capacitor bank (except directly
connected one) etc. shall be manufactured & tested as per
NEMA/VDE/IEC/JIS/BSS standards assembled locally in 16 SWG sheet steel clad dust &
vermin proof, free standing, floor mounting, epoxy resin powder coat painted cabinet. as per relevant IEC standards and
as per approval & acceptance of the Engineer.
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For
1500/1600 KVA Transformer
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PFI
Capacity- 900 KVAR
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3 Nos.-
415V, 1800A hard drawn electrolytic copper busbar.
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1 No. -
415V, 25 KVAR, 50 Hz TP power capacitor bank with built in / separate
discharge coil for connection directly with line through fuse.
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3
Nos.-415V, 25 KVAR, 50 Hz TP power capacitor bank with built in / separate discharge
resistor.
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4 Nos. -
415V, 50 KVAR, 50 Hz TP power capacitor bank with built in / separate
discharge resistor.
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6 Nos. -
415V, 100 KVAR, 50 Hz TP power capacitor bank with built in / separate
discharge resistor.
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3 Nos. -
415V, 40 Amps, 50 Hz auto TP magnetic
contactor with AC3 duty.
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4 Nos. -
415V, 80 Amps, 50 Hz auto TP magnetic
contactor with AC3 duty.
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6 Nos. -
415V, 160 Amps, 50 Hz auto TP magnetic contactor with AC3 duty.
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12 Nos. -
415V, 50 Amps. HRC fuse with base.
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12 Nos. -
415V, 100 Amps. HRC fuse with base.
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18 Nos. -
415V, 200 Amps. HRC fuse with base.
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Assembled
by the valid ISO-9001 certified company having test certificate according to
relevant IEC standards from BUET/CUET/DUET/KUET/RUET.
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1
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No.
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10
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Installation,
testing and commissioning of 415V, 3-phase, 50 Hz indoor type LT
switchgear/P.F.I. plant suitable for following capacity transformer on
prepared c.c. foundation with the help of necessary tools & plants,
skilled labour & technician as per direction of the Engineer-in-charge.
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a.
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For
1250-1500 KVA. Transformer
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2
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Jobs.
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11
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Supply of
outdoor type11 KV, 50 Hz, 100A, (10 KA), 75 KV BIL lightning arrester
complete with mounting accessories etc. manufactured by GEM Co. Ltd,
Bangladesh /ENERGYPAC or equivalent product of USA EU Countries (3 Nos. in a
set).
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1
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Set.
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12
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Supply of
outdoor type 11KV, 50 Hz, 5KA (20 KA) dropout fuse complete with mounting
accessories etc. manufactured by GEM Co. Ltd, Bangladesh /ENERGYPAC or
equivalent product of USA /EU Countries (3 Nos. in a set).
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1
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Set.
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13
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Installation
of HT drop out fuse/ lightning
arrester/ disconnection switch on prepared U-channel cross-arm on single /
H-pole with necessary fixing materials complete as per instruction of the
Engineer-in-charge.
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a.
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Drop out
fuse.
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1
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Set.
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b.
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Lightning
arrester.
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1
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Set.
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14
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Providing
& laying of following sizes LT PVC insulated sheathed & armoured
cable (NYFGbY)/ HT (11KV) PVC insulated, sheathed, screened & armoured
cable (NYSEYFGbY)/HT (11KV) armoured XLPE Cable: All electrical contacts
shall be of brass/copper connected
through connector or soldering ( no twisting shall be allowed) and cables
shall be manufactured and tested according to
relavent IEC/BDS/ BS/ VDE
standards and as per detailed specification mentioned in Annexure-A.
The work shall be carried out as per direction/approval/acceptance of the
Engineer.
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(a)
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In kutcha ground by cutting 45.70 cm width x
91.40 cm depth trench with necessary brick or tile protection and
mending the damages good by refilling
trench with proper compaction.
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(b)
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In
pucca floor through required size of
PVC pipe cutting trench of necessary size and mending good the damages with
one layer 1st class flat brick soling,75 mm thick (1:2:4) cc work with neat
cement finishing etc.
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(c)
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In pucca
ground/road through required size of PVC pipe by cutting 45.70cm width x
91.40 cm depth trench mending good the damages by earth refilling with proper
compaction providing 50 mm thick compacted premix bituminous carpeting over
one layer of 1st class flat brick soling and 75 mm thick compacted water
bound macadam of khoa of brick.
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With HT
(11KV) Cables (NYSEYFGbY) manufactured by BRB/Paradise/BBS/ Poly/ Supersign
or equivalent approved by the Engineering-in-Charge
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a) 3C x 185 sq.mm cable
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i)
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In kutcha
ground
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20
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Mtrs.
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ii)
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In pucca
floor through 125 mm PVC pipe having wall
thickness of 3 mm. |
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60
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Mtrs.
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iii)
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In pucca
ground/pucca road through 125 mm PVC
pipe having wall thickness of 3 mm. |
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20
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Mtrs.
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15
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Providing
& laying of following additional PVC insulated & sheathed cable (NYY) / XLPE insulated & PVC sheathed cable
(2XY) with PVC insulated green/white
coloured ECC wire (BYA) connecting at both ends, through GI pipe (National
Tubes Ltd. Made or equivalent) in a common trench in pucca ground/pucca road.
All electrical contacts shall be of brass/copper connected through connector or soldering (
no twisting shall be allowed) and cables shall be manufactured and tested
according to relavent IEC/BDS/ BS/ VDE
standards and as per detailed specification mentioned in Annexure-A.
The work shall be carried out as per direction/approval/acceptance of the
Engineer.
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Cables
manufactured by BRB/Paradise/BBS/Poly/ Supersign /Citizen (for both NYY &
2XY cable)/Evana/Khawaja /MEP ( for NYY only)
or equivalent approved by the Engineering-in-Charge
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1C-4x600
sq.mm (NYY) with 600 sq.mm (BYA) ECC wire through GI pipe of minimum inner
dia 125 mm. (For X-Former LT to L.T Switchgear & PFI) (Each cable for 3 Nos Loop).
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150
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Mtrs.
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16
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Supply
& fixing of heat shrink termination kit out-door / in-door use complete
with DIN lugs earth connection hardware & cable preparation kit (In-door
& outdoor) at the point of cable termination for 11 KV 3-core PVC
insulated & PVC sheathed & armoured / non-armoured cable of the
following sizes (Made in GERMANY/
USA/UK/ FRANCE/ JAPAN/ITALY/ SWEDEN/ SWITZERLANDor equivalent approved by the
Engineering-in-Charge
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FOR IN-DOOR
USE
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a.
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3 x 185 mm2
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3
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Kits
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b.
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3 x 150 mm2
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1
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Kit
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17
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Supplying
and fixing of heat shrink self-amalgamating tape of the following
sizes for bus-bar of both HT switch-gear (11 KV) & LT switch-gear / PFI,
transformer terminals as protection against flash-over
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a.
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Width 100
mm thickness 1 mm
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30
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Mtrs.
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18
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Earthing
the electrical installation with 40
mm. (1.5") dia G.I. pipe (Earth electrode) having 6.35 mm. dia hole across the pipe at
305 mm. interval securedly bonded by soldering with 2 nos.of No2 SWG HDBC earth leads with its protection
by 20 mm. (3/4") dia G.I. pipe up-to plinth level run at a depth
of 609.6 mm. (2 ft.) below G.L.up-to main board to be earthed including
necessary connecting copper sockets, bolts, nuts, etc. complete for maintaining earth
resistance within 1 ohm.
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a.
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Depth of
bottom of main electrode at 37338 mm.
(122.5 ft) from GL & length of electrode 36576 mm. (120 ft).
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i)
Lightning arrester
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1
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Set.
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ii) H.T
Meter
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1
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Set.
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iii) H.T
Switchgear
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1
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Set.
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iv)
X-Former Neutral
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1
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Set.
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v)
X-Former Body
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1
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Set.
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vi) L.T
Switchgear
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1
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Set.
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vii) P.F.I
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Set.
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7
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Sets.
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