Internal Electrification
Internal Electrification
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1 Concealed conduit wiring for following point looping at the switch board with earth terminal with 1C-2x1.5 sqmm PVC insulated and sheathed stranded
1.1.6 cable (BYM) & same size PVC insulated ECC (BYA) (Green / White color) including circuit wiring with IC-2x2.5 sqmm PVC insulated and sheathed
p-4 stranded cable (BYM) & same size PVC insulated ECC (BYA) Green / White color through PVC conduit (one conduit from switch board to common
point on ceiling is considered to draw 3 pair of cable ) of reputed manufacturer of minimum 25 mm dia & 1.5 mm wall thickness complete with 18 SWG
GP sheet / PVC switch board & pull box with 3mm thick ebonite sheet cover, without switch, fixing materials etc.(without switch) as required including
mending the damages good. 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 relevant IEC / BDS / BS / VDE standards and as per detailed specification mentioned in
Annexure-1. The work shall be carried out as per direction & approval of the Engineer.
Cable manufacturer(s) must have valid test certificate from internationally accrediated laboratory (like CPRI, KEMA etc) accepted / approved by the
Engineer
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2 Concealed conduit wiring with following PVC insulated and sheathed stranded cable (BYM) & PVC insulated Green / White coloured ECC wire (BYA)
1.2.8 through PVC conduit of reputed manufacturer complete with 18 SWG GP sheet and pull box with 3mm thick ebonite sheet cover, fixing materials etc.
p-13 as required including mending the damages good. 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 relevant IEC / BDS / BS / VDE standards and as per detailed
specification mentioned in Annexure-1. The work shall be carried out as per direction & approval of the Engineer.
Cable manufacturer(s) must have valid test certificate from internationally accrediated laboratory (like CPRI, KEMA etc) accepted / approved by the
Engineer
(a) 1C-2x1.5 sq.mm. (BYM) cable with 1.5 sq.mm (BYA) ECC wire through PVC pipe of minimum inner dia 16 mm having wall thickness of 1.5 mm .
40455 mtr
(b) 1C-2x2.5 sq.mm. (BYM) cable with 2.5 sq.mm (BYA) ECC wire through PVC pipe of minimum inner dia 16 mm having wall thickness of 1.5 mm.(for 3
pin combine) 52500 mtr
(c) 1C-2x4sq.mm. (BYM) cable with 4 sq.mm (BYA) ECC wire through PVC pipe of minimum inner dia 20 mm having wall thickness of 1.5 mm .
30000 mtr
(d) 1C-2x6 sq.mm. (BYM) cable with 6 sq.mm (BYA) ECC wire through PVC pipe of minimum inner dia 25 mm having wall thickness of 1.5 mm.
18495 mtr
(e) 1C-2x10sq.mm. (BYM) cable with 10 sq.mm (BYA) ECC wire through PVC pipe of minimum inner dia 25 mm having wall thickness of 1.5 mm.( For 8
way SPDB) 7000 mtr
PART-C: Internal Electrification Wiring Works
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(f) 1C-2x16sq.mm. (BYM) cable with 16 sq.mm (BYA) ECC wire through PVC pipe of minimum inner dia 30 mm having wall thickness of 1.5 mm. ( For
10-way SPDB) 7000 mtr
Cable manufacturer(s) must have valid test certificate from internationally accrediated laboratory (like CPRI, KEMA etc) accepted / approved by the
Engineer
(a) 1C-4x16 sqmm (NYY / 2XY) with 16 sqmm (BYA) ECC wire through PVC pipe of minimum inner Dia. 40 mm having wall thickness of 1.9 mm.
(for MDB to FDB, if needed dual line will be drawn for an FDB)
4300 mtr
4. Remote control, Mobile Control and Skin touch Digital Switch Board.
A/R There should be 5 switch system for 3 light control , one fan control, 1 three pin outlet, there should be overload relay to protect the switch board from
over current and short circuit current. Remote control distance should be at least 75 mtr without presense of any obstacle. Country of origin:
Bangladesh, Brand: AIP or accepted by Engineer in charge. ( 05 years replacement warranty) 2450 Nos
PART-C: Internal Electrification Wiring Works
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5 Providing & fixing 250 volts. 5/6 amps. (minimum) concealed type following switch / switch socket manufactured and tested in accordance with
4.11 relevant IEC/ VDE/NEMA/BS/JIS standards mounted on required size 18 SWG galvanized plain sheet board of 76.2 mm (3") depth. All electrical
p-100 contacts shall be of brass/copper .. (Manufacturer shall have certificate of standard which they follow)
Made in ENGLAND / GERMANY / JAPAN / USA or EU countries or Bangladesh ( 05 years replacement warranty)
4.11.1.v One gang switch & one 5 amps. 2-pin socket combined.
500 Nos
6 Providing and fixing single phase distribution board (SPDB) [concealed / surface] having the following components and specifications: [Fig : 4.2]
4.2 1. Steel board : size 20"x15"x4"
p-94 MS sheet : 18SWG with hinged type door and locking
arrangement duly painted with powder coating with epoxy
polyester resin on all surfaces of board (gray / off-white) etc. In
front side there will be tempered thick fiber glass with rubber
gaskets to observe the inside arrangement.
2. Copper bar : size 10"x 1"x 3mm(2 nos) and 6"x 1"x 3mm
(1 no) mounted on insulator
capacity: 60-100A at both ends.
PART-C: Internal Electrification Wiring Works
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3. 1 no. DPSPMCB(main control) and following nos. SPMCB
DPSPMCB and SPMCB manufactured and tested in
accordance with relevant
IEC / VDE / NEMA / BS / JIS standard. Minimum breaking
capacity 6/10 KA
with thermal overcurrent and instantaneous electromagnetic
short circuit release.
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7 Providing and fixing 500 V 3-phase bus-bar system assembled in prelaid board with porcelain insulators. There will be equal size holes on every
4.7.3 bar at 0.5" interval and bar to bar gap shall be 2" - 3".
p-98 400 - 500 Amps.
Copper flat bar (5 nos) : 4 nos 18"x1.5"x10mm and 1 no 4"x1.5"x10mm for earthing mounted on insulator at both ends individually.
(For MDB & EMDB ) 126 Nos.
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4.8.1 * Joint: Bus bar trunking joint shall be of the one-bolt type and
(ix) shall be possible to remove any joint connection assembly to
allow electrical isolation of bus bar trunking length.
* Indoor feeder and plug-in trunking shall be hanged 3 meters
horizontally and 4.88 meters vertically spacing.
* Line to line voltage drop shall not exceed 4% at full connected
load.
* Temperature rise at any point of the bus bar trunking enclosure
shall no exceed 550C.
Bus bar trunking system with flange, elbow, plug in points and fixing supports.
5000 Amps.
(for NESCO and Emergency Line) 10 Nos.
TPMCCB of ABB / AEG / DORMAN SMITH / LEGRAND / SCHNEIDER / EATON / HAGER / MEM / MERLIN GERIN / VITZRO / KAWAMURA /
FEDERAL or equivalent brand accepted / approved by the engineer.
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10 Supplying of 415V, 3 phase, 50Hz following capacity control circuit breaker feeder unit as per following specification with thermal overcurrent &
2C.2 instantaneous electromagnetic short-circuit release manufactured and tested as per NEMA / IEC / VDE / BS / JIS standards (adjustable type above
p-82 100A rating) for sub-station L.T panel.
SPMCBS of DORMAN SMITH / MEM / SIEMENS / VIRTZRO /HAGER / FEDERAL / KAWAMURA / ABB / HAVELLS / LEGRAND / MERLIN
GERIN / SCHNEIDER or equivalent brand accepted / approved by the engineer.
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Do-do-with water tight arrangment .
(FOR MDB& EMDB)
(4'-0'' x 3'-0'') x 63 + (2'-6" x 3'-0'') x 63 =1228.5sft 114.20 Sqm.
13 Providing & fixing 250 volt single phase 3-pin combined switch socket outlet (surface / Concealed type) manufactured and tested in accordance with
4.10 relevant IEC / VDE / NEMA / BS / JIS standards mounted on required size 18 SWG galvanized plain sheet board / Plastic Board (Self-extinguishing
p-99 650oC) of 76.2 mm. (3") depth. (Manufacturer shall have certificate of standard which they follow).
14 Providing & fixing ding dong 250 V grade call bell on prepared board including required length of PVC twin flexible cord etc. complete.
4.15.1 20 Nos.
p-101
4.15.2 Providing & fixing 250v, 50 Hz grade remote control call bell complete (foreign made).
60 Nos.
15 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
4.17 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
p-102 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. (For Main Board)
Depth of bottom of main electrode at 37338 mm. (122.5 ft) from GL & length of electrode 36576 mm. (120 ft).
20 Nos.
( 5 for Nesco riser, 5 for emergency riser, 10 for spd)
PART-C: Internal Electrification Wiring Works
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16 Construction of Earthing inspection pit inside measurement 600 mm x 600 mm with 250 mm thick brick in cement morter (1:4) with 100mm thick RCC
4.18 top slab (1:2:4) with 1% re-inforcement 450 mm dia water sealed CI man-hole cover with locking arrangement including necessary earth works, site
p-102 filling and one brick flat soling 75 mm thick (1:3:6) base concrete for making inlet channel & 12mm thick (1:2) cement plaster with neat finishing etc.all
complete up to a depth of .75 meter.
20 Job
17 Supplying & fixing AC capacitor type ceiling fan (without regulator) of following specifications and sizes complete with minimum 305 mm (1 ft) long
18.1 and 0.75 -1.0" dia, 2.3 mm thickness MS pipe down rod, tempered cast aluminum blades, 2.5 µf 400V AC capacitor, canopy, double Z ball bearing,
p-305 best quality silicon sheet core, best quality copper made super enamel wire, aluminum alloyed casting body having safety pin with powder coated
heat / docu paint as required etc. connecting PVC wire complete as required.
Rated Voltage : 220volts, Rated Frequency : 50 Hz, Rated Speed : 300 rpm ± 10%, Input power : Max 80 watt, Service value : Minimum 2.80
m3/min/watt, Temperature Rise : Maximum 70ºC, Class of Insulation : Class-E. Noise level : 60 db at a distance
1 meter.
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19 Providing and fixing of following axial flow A.C capacitor type wall mounted exhaust fan complete with blade, steel frame standard wall louver shutter,
18.2 PVC insulated connecting wire etc complete as required including cutting wall & mending good the damages asper direction of the Engineer-in-charge
p-336
16" Exhaust fan plastic body (Foreign made approved by the Engineering-in-Charge)
50 Nos
20 Providing & fixing box type fan clamp made of 25.4 mm. x 6.35 mm. (1"x ¼") MS flat bar with 15.87 mm. (5/8") dia MS hook including necessary bolts,
18.4.1 nuts etc. as required as per sample approved by the Engineer. 3300 Nos
p-336
10000 Meter
PART-C: Internal Electrification Wiring Works
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1.2.9.8 1C-2x2.5sqmm (BYA) cable with 2.5sqmm (BYA) ECC wire through PVC pipe of minimum inner Dia. 16 mm having wall thickness of 1.5 mm
5000 Meter
25 Supplying and drawing of following sizes PVC insulated & sheathed twisted pair telecommunication cables having Dia. of each core is 0.6 mm through
1.6 pre-laid pipes.
Cable manufacturer(s) must have valid test certificate from internationally accredited laboratory (like CPRI, KEMA etc.) approved / accepted by the
Engineer.
1C-4x0.282 sqmm (2 pair) 5000 Meter
26 Providing & laying of following PVC pipe (best quality PVC pipe of reputed manufacturer) embedded in wall / column / ceiling / floor etc. with all
1.9 accessories, 18 SWG GP sheet pull box with 3 mm thick ebonite sheet cover, fixing materials etc. as required including mending the damages good.
Minimum inner Dia. 20 mm & minimum wall thickness 1.5 mm.
2000 Meter
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27 ALUMINIUM CABLE TRAY
1.13 Supply, fitting and fixing aluminum cable tray made of 10 mm Dia. aluminum rods provided 75 mm c / c in any position both ways as per design with
outside frame 25 x 25 x 6 mm aluminum angle including fabricating, cost of electricity, tools and plants, workshop charges, carriage of the same,
cutting groves in the RCC or brick work, mending good the damages with CC (1:2:4) etc. complete for all floors accepted by the Engineer.( for
seperating CCTV, Co-axial cable, Fire cable in 5 nos ducts) 1000 Meter
PART-C: Internal Electrification Wiring Works
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28 Supply, installation, testing and commissioning early streamer Emission Air Terminal (ESEAT) base of collection volume method (CVM) as
4.21.1 per IEEE 998-2012 having the following technical specification -
Withstand peak lightning current : 100ka
Weather condition of work : Material of lightning Air Terminal should be able to work in any environmental condition. So, material of Air
Terminal should be stainless steel.
Dimension of the air terminal:
Minimum length: 220 mm
25mm Dia. solid rod at the bottom of the Air Terminal
having M20 male thread to fix on mast.
Certified advance Time : Maximum 60µ second with a current
peak higher than 100ka.
Material of the Air Terminal : Stainless steel
Weight: 2.25 – 2.5 kg.
Radius of protection : 90 – 100 meter at 5 meter
height from the plan.
Product certification and standards : System should compliant to UL-96 (lightning protection component) (standard of safety)
02 Nos
Brand and Model:
Brand: ABB / LPI / ERICO or equivalent.
Model: ABB OPR 60 / LPI CAT ii-G / ERICO DYNASPHERE or equivalent.
Manufactured and made in: USA / FRANCE / AUSTRALIA or EU countries.
PART-C: Internal Electrification Wiring Works
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29 Supply and installation of insulated Air Terminal mast of the
4.21.2 following specification -
Made of stainless steel (Type : 316)
Length : 2300 mm
Dia. : 30mm
The mast shall be fixed on the top of the GI tower with SS nuts bolts, clamps as per sample approved by the engineer.
02 Nos
30 Supply and installation of lightning event counter of the following technical specification - Register capacity: 0-999 mechanical counting without
4.21.3 external power supply (LCD display)The down conductor shall pass the hole of the counter and the same shall be fixed vertically at any point. Brand:
ABB / LPI or equivalent product. Standard : (UL listed)
02 Nos
31 Supply and installation of earth test box with the following arrangement inside it.
Test Joint: (79mm x 50mm x 20mm) made of copper.
30mm x 2mm and Dia. 8mm line coupling made of copper.
04 Nos
32 Supply and drawing of copper made down conductor having Dia. 12.7 mm or copper strip (30mmx2mm) with fixing holder on vertical and horizontal
4.21.5 surface. The fixing shall have 40mm to 50mm length or height and will be placed 3 nos. meter as per direction and sample approved by the engineer.
245 Meter
33 Construction of GI tower with the following specification –
4.21.6 GI Pole: Dia. 3”, Length: 15’ (L-10’ D- 3”, L-5’ D- 2” Dia.) duly painted with powder coating with epoxy polyester resin.
There will be minimum three guy wire for erection of the pole properly. The base of the pole and guy will be installed by CC on the roof-top and the
size will be as required to hold the pole at any circumstances.
02 Nos
PART-C: Internal Electrification Wiring Works
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34 Construction of earthing ( 2 nos.) for the lightning arrester as per instruction and enclosed Diagram ( Fig : 4.21) and as per direction of the engineer
4.21.7 in the following way-
Soil digging: Size–3000mmx400mmx400mm (2 nos.)
Construction of pit by brick and RCC slab on it. On the top of the slab there will be a hole and a pit cover made by cast iron will be fixed on it.
Size of the pit: (600mmx600mmx600mm) (2 nos.)
Copper plate: (300mmx150mmx15mm) (2 nos.)
Copper plate will be fixed with the electrode (copper rod or copper strip) by necessary fixing materials made of copper.
Copper electrode (12.7mm Dia. copper rod or copper strip (30mmx2mm)
Length of the copper rod or strip : minimum 3000mm
(10+10) = 20 meter.
Ground enhancing materials (40 + 40) = 80 kg.
(2 Nos. of earthing is considered 1 set)
02 Nos
35 Surge protection device (SPD) for protection of over-head line connected to LT line.
4.21.8 Capacity: 50ka 4-pole with wiring and SPD box.
Brand: ABB / ARICO / LPI or equivalent Product.
Made in GERMANY / AUSTRALIA / SPAIN or product of EU countries.
10 Nos
36 Supply and installation of Aviation light fittings wit LED Lamp, day light sensor, wiring by 1C-2x1.5 sq.mm cable (NYY) with ECC as per instruction and
4.21.9 sample approved by the engineer.
The Aviation Light fitting shall be fixed on GI pipe (GI Bracket) with necessary fixing materials shown in the fig - 4.21, below the Air Terminal.
02 Nos
37 CABLE / SOCKET / FERULES
PART-C: Internal Electrification Wiring Works
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Supply and fixing of copper made sockets / ferules for following size cables (need to be shown voltage rating.)
16 sqmm
1260 Nos
38 Providing and drawing No. 2 hard drawn bare copper wire complete with necessary binding wire, pvc pipe as required as per direction of the
3 engineer. ( For earthing purpose)
670 Kg
TOTAL Taka
885 10,797,000.00
885 2,920,500.00
928 18,560.00
Unit Rate Item total
(Tk.) price (Tk.)
155 6,270,525.00
190 9,975,000.00
269 8,070,000.00
335 6,195,825.00
478 3,346,000.00
Unit Rate Item total
(Tk.) price (Tk.)
704 4,928,000.00
987 4,244,100.00
2,822 6,913,900.00
Unit Rate Item total
(Tk.) price (Tk.)
586 117,200.00
525 262,500.00
646 323,000.00
Unit Rate Item total
(Tk.) price (Tk.)
14,550 5,092,500.00
13,342 4,669,700.00
Unit Rate Item total
(Tk.) price (Tk.)
6,593 830,718.00
Unit Rate Item total
(Tk.) price (Tk.)
374,453 3,744,530.00
36,332 2,906,560.00
60,481 1,209,620.00
90,667 5,440,020.00
7,329 73,290.00
Unit Rate Item total
(Tk.) price (Tk.)
139,636 1,396,360.00
640 224,000.00
Unit Rate Item total
(Tk.) price (Tk.)
16,240 1,854,608.00
1,129 3,387,000.00
948 3,318,000.00
622 12,440.00
767 46,020.00
42,261 845,220.00
Unit Rate Item total
(Tk.) price (Tk.)
6,037 120,740.00
3,502 11,556,600.00
1,491 1,267,350.00
Unit Rate Item total
(Tk.) price (Tk.)
2,705 135,250.00
133 438,900.00
145 725,000.00
75 1,500,000.00
144 1,440,000.00
Unit Rate Item total
(Tk.) price (Tk.)
166 830,000.00
66 330,000.00
29 145,000.00
126 378,000.00
33 66,000.00
44 44,000.00
Unit Rate Item total
(Tk.) price (Tk.)
2,777 2,777,000.00
Unit Rate Item total
(Tk.) price (Tk.)
278,679 557,358.00
Unit Rate Item total
(Tk.) price (Tk.)
14,852 29,704.00
42,502 85,004.00
1,328 5,312.00
1,923 471,135.00
11,833 23,666.00
Unit Rate Item total
(Tk.) price (Tk.)
130,404 260,808.00
48,539 485,390.00
9,056 18,112.00
Unit Rate Item total
(Tk.) price (Tk.)
60 75,600.00
1,297 868,990.00
124,067,615.000
na.