NO. 1 - CLARIFICATIONS ON MAMALAKA MAUNGU AND BAHATI TENDERS
Item / QUERY / CLARIFICATION1 / Can we bid for more than one lot / NO. In Bid Data Sheet, ITB 1.1 has been clarified to read “Bidders shall bid for only ONE Lot. Bidding who submit more than one Lot will be disqualified.”
2 / The transformer for Maungu 132/33KV substation MAU-001 has been removed. Are power transformers removed from the scope of supply? Please clarify who will supply and install / The transformer (15MVA 132/33KV) will be provided by KPLC. The contractor will be required to do the rest of the works from civil works associated with it upto commissioning. The contractor will also be responsible for the transformer transportation from Mombasa KPLC stores to Maungu substation site.
3 / MAM 201B / See the attached route for the underground 66Kv cable for Mamlaka.
4 / Drawing for the 15MVA Transformer is not given with the tender / Attached
5 / The single line diagrams fro the three lots are not given in volume 3 of the bidding document / Attached
6 / What is the tentative 66kV cable route for Mamalaka road? / Attached
7 / In Prg 4.2.24 of Vol2 mentioned Maungu-Juja and Maungu-Rabai Transmission Line but they are not contained in price schedule. Can you clarify? How is the 132kV supply of 132kV/33kV Maungu substation? / Breaking of the Juja-Rabai 132kV line As in the attached SLD and site visit clarifications
8 / Kindly clarify the Bid Security Amount for Maungu 132/33KV substation as its different in SPN from that specified in Bid Data Sheet? Is it 100000USD or 70,000USD / The amount shall be USD 70,000 for Maungu Substation
9 / MAM-012 .What are the number of feeders for Mamlaka substation? / Receive the proposals for 11kV feeders from Mamlaka Rd s/stn. Note that with 7 feeders already identified and 2x23MVA Tx`s, we should have an 11kV board with a total of 10 feeders (ie 7 feeders and 3 spares)
10 / What is the current rating for the 11kv feeders? / See technical specifications for 11kV board/switchgear.
11 / Is this bid tax exempted / Bidders shall quote for all taxes including the newly introduced railway development Levy. Change the terms from CIP to DDP
12 / What do you mean by 30% payment on schedule 1 materials after delivery to site and installation? / This means that 30% of the Material cost of Major items of schedule No.1 will be paid upon delivery to site and installation. I.e full payment of major materials will NOT be paid upon shipment only. Read terms of payment for clarity.
13 / Is letter of credit applicable in this tender? / ONLY for Schedule No.1.
14 / Is alternate bid/offer acceptable? / NO., ITB 13.1 “Alternative bids are not permitted.”
15 / In Bahati, 3No Circuit breakers are required. Do we offer VCB or SF6 circuit breakers / As per specifications
16 / Kindly clarify the difference between, MAM-016, MAM-RD 203 / MAM 016-INCREASE LENGTH FROM 1200M TO 5000M
MAM-RD-203- DELETE THIS ITEM
17 / Are there mandatory spares for Mamlaka substation / NB BIDDER TO INCLUDE ALL THE NECESSARY SPARES FOR MAMLAKA GIS EQUIPMENT IN SCHEDULE No.6
The rest of the spares are attached below
18 / What is the quantity for MAM 201 48 core fibre ADSS/OPGW. Do we quote for design length? / Qoute for the quantity in the B.O.Q- i.e 10km. This is total for inside and outside substation.
Bid Submission Extension
Due to tight schedule from Site Inspection Date, we would like to ask for an extension time of the Bid Submission date for Two (2) Weeks. We thank you for your consideration. / There will NO TME EXTENSION
19 / ITB 20.1 Is a bid security given by a bank outside Kenya acceptable by Kenya Power? / NO
20 / ITB 18.1 and BDS State acceptable currencies as USD and KES only. Is it allowed to quote Schedule 1, plant and mandatory spares parts from Abroad in EUR instead of USD? / NO. Only USD and KES shillings are allowed.
21 / In Schedule 1 of rates and prices to Maungu substation, items from MAU-035 onwards re mixed with items to Bahati substation. Kindly correct / For Maungu substation, Delete all items after item MAU-035
22 / Kindly provide the price schedule for overhead lines / For Bahati Schedule No.3, Design Services, Include item No BAH-502- Line Design, QTY 27KM (i.e 15km qty 33KV and 12km qty 11KV)
For Maungu Schedule No.3, Design Services, Include item No MAU-502- Line Design 33KV, QTY 75KM
For Bahati Schedule No.4, Installation Services,, Include item No BAH-109- Line installation, QTY 27KM (i.e 15km qty 33KV and 12km qty 11KV)
For Maungu Schedule No.4, Installation Services,, Include item No MAU-109- Line installation 33KV, QTY 75KM
For Mamlaka Schedule No.4, Installation Services,, Include item No MAM-111- Line installation 5Km for 11KV,
For Mamlaka Schedule No.4, Installation Services,, Include item No MAM-112- 66KV Cable installation 4.5Km for 66KV Cable,
For Mamlaka Schedule No.4, Installation Services,, Include item No MAM-113- Other Proposed Works, i.e as proposed in feeder schedule for Mamlaka
23 / Is there cable in Lot 2? Is all the 33KV transmission line cable / In Lot2 there are 11KV cables for take-off.
There are No 33KV cables for Lot2. The transmission line is overhead 33kv line.
No.2 CLARIFICATIONS
1 / The lines scope is not matching in Price schedule. Ex 33kv line is 102 km. Here it reads 15km.SOW in lines Distribution TX -5nos & 1no.Price schedule missing.
Schedule no 1 does not have for supply of 33kv Line -102km wheras in Installation MAU 109 now given in clarification. All the items in scope of works MAU-200a,MAU -201,MAU-203,MAU-203 REPEATED BUT DIFFERENT DIST.TX. Clarification not clear. / For Mamlaka Schedule No.1, Include items
MAM-024- Lot/km of 11KV Line in 150mm2 ACSRS Conductor, QTY 5KM
MAM-025- Lot/km of 66KV U/G Cable , QTY 4.5KM
For Bahati Schedule No.1, Include items
BAH-028- Lot/km of 33KV Line in 150mm2 ACSRS Conductor , QTY 15KM
BAH-029- Lot/km of 11KV Line in 150mm2 ACSRS Conductor , QTY 12KM
For Maungu Schedule No.1, Include items
MAU-036- Lot/km of 33KV Line in 150mm2 ACSRS Conductor , QTY 75KM
For Bahati Schedule No.4, Installation Services,, Include item No BAH-109- Line installation, QTY 27KM (i.e 15km qty 33KV and 12km qty 11KV)
For Maungu Schedule No.4, Installation Services,, Change item No MAU-109- Line installation 33KV, QTY to read 75KM instead of 102km
For Mamlaka Schedule No.4, Installation Services,, Include item No MAM-111- Line installation 5Km for 11KV,
For Mamlaka Schedule No.4, Installation Services,, Include item No MAM-112- 66KV Cable installation 4.5Km for 66KV Cable.
NB-
1. Delete in scope of works the 5No Distribution transformers.
2. For Maungu Schedule No.4, Installation Services, Include item No MAU-110- 630 KVA 33/11kv transformer installation, QTY 1. The transformer will be provided by KPLC while the contractor will carry out all associated works.
NB KPLC will transport the 630KVA 33/11KV transformer to site
2 / MAU -022,MAU-025,MAU-026 33KV Indoor panels .This station is outdoor ss and 33kv CB,CT,VTs are covered.where are the specs and scope is not clear. / Delete the Indoor panels items
3 / Vol 2, Clause 4.2.7 Aux TX for 132kv SS is not given with its vector group. Scope reads 33/0.4 200KVA / Dyn11
5 / VOL 2,SECTION VI,SOW FOR LINES Clause 5.2.3.3 Maungu 132/33kv MAU-200A,MAU-201 TO MAU-203 are missing in price schedule / Follow the clarification for additional items or what has been deleted.
6 / VOL 2, Protection of HV system.
Clause 4.1.2.9.8.Protection system given is for 66kv & 33kv ss.FOR 132kv ss is not given / The protection shall employ tele-protection scheme to be approved by the project manager and shall in addition comply with the requirements set out under clause 4.1.2.9.2.1
7 / Maungu Price schedule Schedule No 4,CR-003 Now being Kplc supplying TX , the FAT and Training is not in bidders scope.Item to be deleted. / DELETE the item
8 / MAU-009,MAU-010 Protection panel if done for line, what is the protection panel for 132KV CB,SCOPE NOT CLEAR and qty is not matching with 132KV CB being 3nos. / Amend MAU 010 to read : 132KV Control panels for two lines and one transformer complete with all functional requirements.
9 / Scope of works on lines MAU-202 33kv ABS, are they covered in MAU -014. / Not Required
10 / Maungu Schedule no 1 MAU -013, MAU-016, MAU-017 QTY please reconfirm because as SLD issued, it is not tallying. / Follow the B.O.Q
11 / VOLUME II
SECTION VI SCOPE OF WORK
Overhead Lines
5.2.3.3 MAUNGU 132/33kV. In this sheet, it mentioned “102km 3Nox33kV feeder”, kindly clarify the route of the overhead transmission line, such as the start and end position of the Line. Pease confirm whether the poles and foundations of the Line will be constructed by the contractor or not, if so, please supply the counts in Price Schedule. / Change the total length to 75km from 102km. the line lengths are as follows;
Maungu to Voi- Subbstation site 45km,
Maungu Substation to KPC TX Location-15km.
Maungu substation to Bachuma Rd-15km,
Total of 75km.
All works involving the line is responsibility of contractor.
Added in the price schedule(see clarifications above)
12 / NO. 1 - CLARIFICATIONS ON MAMALAKA MAUNGU AND BAHATI TENDERS. In answer of Question 22, added the design and installation of the 102km-Line to Price schedules, kindly clarify whether add the 102km-Line to “Schedule No.1. Plant and Mandatory Spare Parts Supplied from Abroad” or “Schedule No. 2. Plant and Mandatory Spare Parts Supplied from Within the Employer’s Country”. / It is added to Schedule No.1. Bidders can decide to have it in Schedule No.1 or in Schedule No.2. If Bidders put it in Schedule No.2 they should delete it in Schedule No.1 to avoid repetition.
13 / After checking the Instruction to Bidders (ITB 12) and Bid data sheet, the bid submission procedure is not clear. Kindly clarify, if we should submit the bid in single stage bidding or two stage bidding. And which format of letter of bid shall we use? / Single Stage Bidding is applicable
14 / In instruction to bidders, item 22 “Submission, sealing and Marking of bids”, there is no indication whether the commercial offer should be sealed and submitted separately from the technical offer. Kindly clarify. / Shall not be sealed separately
15 / Concerning the Bid security, kindly clarify which format should be submitted. “Form of Bid Security (Bank Guarantee)” or “Form of Bid-Securing Declaration” / Form of Bid Security (Bank Guarantee)
16 / The single line diagram of Mamlaka SS is missing from the tender book we have. Kindly send it to enable us work on the same. / Sent in earlier clarification above
17 / The site layout and dimensions of Mamlaka SS is missing from the tender book we have. Kindly send it to enable us work on the same. / The approved size is one acre at the location shown during prebid meting.
18 / BOQ Item MAM-014: “MV power cable between transformer and switchgear S/C 630 mm2”. Is it required to be copper or Aluminum? / Copper
19 / BOQ Item MAM-016: “MV power cables between indoor switchgear and line termination tower inclusive of termination kits on both ends (11KV 3/c cables, 300mm2)”. Is it required to be copper or Aluminum? / Aluminium
20 / In the BOQ Item MAM-201 is: “48 core fiber ADSS/OPGWqty=10Km”. In the scope of work it is indicated as Item “MAM-201a telecommunication system ADSS fiber qty=10Km”. Could you please clarify this difference and specify the exact quantity for the OPGW and ADSS required. / The 10km is ADSS
21 / BOQ Item MAM-RD-203 “ 11KV lines in 300sq mm 3/c Al cables qty=5 km”.
Is the 5 Km the total quantity of cables we have to quote? / Yes. NB , The 5km is not continuous but total length of cables to be laid
22 / BOQ Item MAM-201b “underground section: connection between arboretum to cathedral via Mamlaka substation qty=4Km”. Please clarify what this item is about.
Noting that in the scope of work it is indicated as Item “MAM-201btelecommunication system for underground section: connection between arboretum to cathedral via Mamlaka substation qty=4Km”. / This is Underground fibre optic cable
23 / BOQ Item MAM-RD-203 “11KV lines in 300sq mm 3/c Al cables qty=5 km”. Please send us the routing of these cables / To be determined by design
24 / BOQ Item MAM-RD 202 “ I. 400mmsq copper S/C 66KV cable link at start of Aboretum Rd to s/stn , II. 400 mmsq copper S/C 66KV cable link from cathedral s/stnqty=5Km.” Please send us the routing of these cables / Sent in earlier clarification
25 / BOQ Item MAM-201b “underground section: connection between arboretum to cathedral via Mamlaka substation qty=4Km”. Is the 4 Km the distance required per phase? or it is the total quantity of cables we have to quote? / This refers to item 22 above. This is the length of fibre optic cable-4km
26 / BOQ item MAM-RD 202 “I. 400mmsq copper S/C 66KV cable link at start of Aboretum Rd to s/stn , II. 400 mmsq copper S/C 66KV cable link from cathedral s/stnqty=5Km.”
Is the 5 Km the distance required per phase? or it is the total quantity of cables we have to quote? / This is distance required is per phase for the 66KV cable.
27 / BOQ Item MAM-RD-204 “11kV 150mm2 ACSR from interconnection of feeders, qty=5km”.
Is the 5km the total line routing means 3x5=15km of 11kV 150mm2 ACSR, or total of 5km of 11kV 150mm2 ACSR? / 5km the total line routing which means 3x5=15km of 11kV 150mm2 ACSR
28 / BOQ Item MAM-201b “underground section: connection between arboretum to cathedral via Mamlaka substation qty=4Km”.
Is this underground section is a 66KV s/c 400mm2 copper cable? / No. This is fibre optic Cable. See 22 above
29 / Kindly specify the difference between Item MAM-201b and item MAM-RD 202 in the BOQ. / MAM 201b is fibre Optic Cable
MAM-RD 202 is 66kV Cable