Supply and Installation of Electrical Materials and Construction of Low Voltage Power Lines: Deadline: 25 September 2020

Supply and Installation of Electrical Materials and Construction of Low Voltage Power Lines: Deadline: 25 September 2020

Supply and Installation of Electrical Materials and Construction of Low Voltage Power Lines: Deadline: 25 September 2020

 

TENDER NOTICE

Title: SUPPLY AND INSTALLATION OF ELECTRICAL MATERIALS AND CONSTRUCTION OF LOW VOLTAGE POWER LINES

Tender No: KTRN/ADMIN/S/2020/09/002

Date of issue: 13th September 2020

Date of bid submission: 25th September 2020

1. Introduction

KT Rwanda Networks Ltd (KtRN) is the only 4G LTE infrastructure company in Rwanda, jointly invested by the Government of Rwanda and Korea Telecom (KT) exclusively for the wholesale provision of the universal mobile broadband network in Rwanda using 4G LTE technology. The wholesale network service for mobile broadband will help to promote healthy competition for advanced retail services and solutions and will benefit consumers, enterprises, and the nation in transforming Rwanda into the ICT hub of East Africa. The company also provides wholesale fixed services based on its national wide fibre infrastructure to licensed operators in Rwanda.

1.Minimum technical specifications for electrical supplies

SUPPLY OF ELECTRICAL MATERIALS AND LOW VOLTAGE POWER LINE CONSTRUCTION on KTRN sites

S/N

ITEM DESCRIPTION

TECHNICAL SPECIFICATIONS

SIZE

UNITS

QUANTITY

1

Supply and installation of electrical underground cable
  • Armored Copper electric power cable
  • 4 cores
  • Voltage: Low and Medium Voltage Cable (600/1000 V)
  • Hardwire, underground cable
  • Conductor material: copper

4 x 90 mm2

m

1

4 x 70 mm2

m

1

4 x 50 mm2

m

1

4 x 35 mm2

m

1

4 x 25 mm2

m

1

4 x 16 mm2

m

1

4 x 10 mm2

m

1

2

Supply and install copper electrical cables
  • Electrical power copper cable
  • Hard wires
  • 3 cores
  • Underground type

3×6 mm2

m

1

3×4 mm2

m

1

3×2.5 mm2

m

1

3

Supply and installation of Telecom Grounding Power Cable
  • Single hard wires electrical cable
  • Conductor material: copper
  • Color: yellow-green
  • Insulated type
  • Underground cable type

90 mm2

m

  1

70 mm2

m

1

50 mm2

m

1

35 mm2

m

1

25 mm2

m

1

16 mm2

m

1

10 mm2

m

1

6 mm2

m

1

4

Overhead LV twisted overhead  power cables (copper)

Electrical overhead copper cables 4 x 90 mm2

m

1

Electrical overhead copper cables 4 x 70 mm2

m

1

Electrical overhead copper cables 4 x 50 mm2

m

1

Electrical overhead copper cables 4 x 35 mm2

m

1

5

Supply and installation of standard Power alignment poles

Supply and fixation of Wooden pole 9m length well finished

ea

1

Supply and fixation of half concrete pole 9m length (with inner whole)

ea

1

Supply and fixation of full concrete pole 9m length

ea

1

Supply and fixation of steel pole LV/BT 9m length

ea

1

6

Supply and fixation of LV metallic  Power distribution Boards

Lockable LV meter distribution board with transparent grass for an index reading  of 40×60 cm (WxH)

pc

1

Simple metallic distribution board with 40×60 cm (WxH)

pc

1

Powder-coated AC DB 50×60 size with 3PH surge protection 10KA, earth leakage and distribution MCBs 4x63A, 3x32A (2pcs), 1x20A (2pcs)

pc

1

Metallic Power Distribution board 50×60 size with main MCBs of 63A 4 poles , 2poles MCBs 3x32A, 1x20A

pc

1

Supply and Install DC DB 40x50cm with protection DC single phase 3 fuses of 32A, Bus-bar for (+) and grounding bar

pc

1

7

Supply and Fixation of DB mounting structures

63-inch metal stainless (GI pipe) of 2 meter, fixed on a strong plate mounted on concrete base (40×50)

Pc

1

90 inch metal stainless (GI pipe) of 2 meter, fixed on strong plate mounted on concrete base (40×50)

Pc

1

63 inch metallic stainless (GI pipe) of 6 meter

each

1

63 – 90 inch PVC Pipe of 6 meter

pc

1

Metallic Support for meter board with 40×50 size mounted on concrete base

pc

1

Single metallic Support for board fixation with 40x50cm size

pc

1

8

Supply and installation of electrical protection devices

Metering system 1 PH + N / 20 A

ea

1

Metering system 3 PH + N / 100 A

ea

1

MCCB 3PH+N 80 A (Schneider electric)

ea

1

MCCB 3PH+N 160 A (Schneider electric)

ea

1

MCCB 3PH+N 250 A (Schneider electric)

ea

1

MCCB 3PH+N 400 A (Schneider electric)

ea

1

3PH Fuse protectors with holders  power rating 80 A

ea

1

3PH Fuse protectors with holders  power rating 160 A

ea

1

3PH Fuse protectors with holders  power rating 250 A

ea

1

3PH Fuse protectors with holders  power rating 400 A

ea

1

Lightning Arrestor Single phase + N of 10 KA

pc

1

Lightning Arrestor 3PH +N of 20 KA

pc

1

Lightning Arrestor 3PH +N (Surge Protector) 40-60 KA

pc

1

Lightning Arrestor 3PH +N (Surge Protector) 70-80 KA

pc

1

9

Electrical Installation accessories

Metallic Wall Plugs M8

pkt

1

Metallic Wall Plugs M13

pkt

1

Metallic Wall Plugs M15

pkt

1

Metallic Wall Plugs M16

pkt

1

Plastic Cable ties Medium size (30cm) in packet

pkt

1

Metallic Cable lugs sizes 10 mm2

Pkt

1

Metallic Cable lugs sizes 16 mm2

Pkt

1

Metallic Cable lugs sizes 25 mm2

Pkt

1

Metallic Cable lugs sizes 35 mm2

Pkt

1

Metallic Cable lugs sizes 50 mm2

Pkt

1

Metallic Cable lugs sizes 70 mm2

Pkt

1

Metallic Cable lugs sizes 90 mm2

Pkt

1

Proper electrical insulation tapes , packet of 10 pcs

pkt

1

Proper electrical installation labels in packet of 20 pcs

pkt

1

Cable alignment clamps

Pc

1

Cable Connectors (manchons) 16 mm2

Pc

1

Twisted pair overhead cable connector 35mm (Blocks)

pc

1

Civil works for Width x Depth (30×60 cm) for installation of electrical power cables in trenching and cost for cable removal

m

1

Proper electrical waterproof insulators in packet of 10

pkt

1

Bucket of organic salt for creation of grounding facility

pc

1

10

Supply and construction of lightning protection materials

DETAKOM-A5 Active Lightning Conductors/air terminal

pc

m

Copper ground rod (earth spike) M16 x 1.2 mtr

pc

m

Stranded bar Copper non-insulated 70mm2

m

1

Stranded wire Copper non-insulated 50mm2

m

1

Copper clamps for joining earthling components (brass or copper)

pc

1

Denso tape to cover underground joints

ea

1

Copper earth Bus bar 250x25mm, 8xM8 holes with bras bolts-nuts

pc

1

Termination of earth tails (lug, bolt, washer, nut)

ea

1

11

Supply and installation of electrical components

Supply and Install Wall mount power outlet (dual socket French / English types)

Pc

1

Supply and Install Dual-electronic fluorescent lights  with 4feet tubes type

pc

1

Supply and Install environmental protection fluorescent lights  Dual with 4feet tubes type

pc

1

Nav light with day-night switch as per Aviation Authority standards

pc

1

Supply and installation of dry powder type fire extinguisher 30Kgs

pc

1

Supply and installation of Co2 fire extinguisher 50Kgs

pc

1

Supply and installation of dry powder type fire extinguisher 5Kgs

pc

1

Supply and installation of Co2 fire extinguisher 9Kgs

pc

1

12

Supply and installation of Molded Case circuit breaker (MCCB)
  • Power rating: 600 Amps MCCB (Schneider electric)
  • 4 Poles connectors or phases
  • Alternative current voltage: 690 V
  • Rated frequency: 50/60 Hz
  • Power rating adjustable capability

pc

1

  • Power rating: 400 Amps MCCB (Schneider electric)
  • 4 Poles connectors or phases
  • Alternative current voltage: 690 V
  • Rated frequency: 50/60 Hz
  • Power rating adjustable capability

pc

1

 

 

 

13

 

Supply and installation of Auto and Manual changeover

  • Auto-Manual changeover switch in a steel enclosure
  • Power rating: 400 Amps
  • 3 phases + Neutron (4 poles)
  • L+N: 240 Volt, L+L: 400 V, 690 V
  • Frequency: 50/60 Hz
  • Front panel includes LED indicators and test switch to check the systems is working correctly.
  • Rated instant resistance capacity: 10 KA
  • Rated short circuit connection capacity: 17KA

ea

1

14

Supply and installation of Automated changeover

  • WCQ2G- 400A (Westhomes) complete set with auxiliary connectors (commands)
  • Power rating: 400 Amps
  • 3 phases + Neutron (4 poles)
  • L+N: 240 Volt, L+L: 400 V, 690 V
  • Frequency: 50/60 Hz

ea

1

2.Preliminary administrative and technical compliance

The bid submitted by the Bidders shall include the following:

  1. Company profile;
  2. Copy of trade license;
  3. A valid copy of the tax clearance certificate;
  4. References of three similar projects accomplished in the past with other recognized organizations and experience of 3 years in supply and installation of Electrical and power systems;
  5. Provide the equipment catalogs or brochure for products to be supplied such as ( DBs, MCCB, SDP, Surge/lightning protection devices or terminal, Main big sized power cables, and any of the manufacture recommended products)
  6. Relevant CV for qualified engineers; at least 1 electrical or electro-mechanical engineers, 3 electricians, and one technical manager with skills in related fields (electrical / Electro-mechanical engineering)
  7. Technical and Financial proposal, signed and stamped;

BIDS SUBMISSION:

Well prepared, Proposals are due no later than 11 AM, September 25, 2020, to be submitted to KTRN email [email protected]. Late offers will be rejected.

For any inquiry, you can write to [email protected] In at least 2 days before the bids submission deadline.

Done at Kigali, on 13th September 2020.

KT Rwanda Networks Ltd.

 





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