10) Response to Question 2 - RFP MG 02122026.pdf

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Storage Ring (SR) Bipolar Power Converter (BPC)
Solicitation number
MG-02122026
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This document is LBNL's response to a bidder question regarding missing BOMs (Bills of Materials) and documentation for five Bipolar Power Converter assemblies under RFP MG-02122026, dated February 18, 2025.

LBNL clarifies that all required BOMs and data files are provided in .zip files organized by assembly and sub-component type. For each of the five assemblies (Items 1-5), documentation is structured in three tiers: top-level assembly files, mechanical fabrication/assembly files (including chassis, metalwork, and harnesses), and electrical fabrication/assembly files (including printed circuit boards and electrical components). Each assembly includes a Document Control List (DCL) with corresponding LBNL reference numbers. LBNL also corrects the assembly part numbers in the vendor-provided table, with corrected numbers highlighted in red in Table 1. The mechanical and electrical files are dated 05-20-2025 and 05-21-2025 respectively, with file dates for Item 2's electrical files listed as 05-12-2025. All five assemblies have corresponding LBNL internal reference numbers (AL-1821-XXXX) to facilitate tracking and retrieval of the complete technical documentation packages.

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LBNL Response to Question 01 Re: LBNL RFP MG-02122026 – 02/18/2025

1. Looked at all files, and there are no BOMs (part list) and documents/data files for the following assemblies listed below.

Per their ECO’s, all list more than 1 sub-assembly.

ITEM # Assy Part

Number Number Rev Description Assy Description ???

1 BPC-2CH-S-

18V-24A

LT-EL-SR-PS-CRR-

6201-10

E Bipolar Power Converter

BPC-2CH-S-18V-24A

Bipolar Power Converter

2 BPC-4CH-S-

18V-10A

LT-EL-SR-PS-CRR-

6201-10

Bipolar Power Converter

BPC-4CH-S-18V-10A

3 BPC-2CH-S-

16V-35A

LT-EL-SR-PS-CRR-

6203-10

B Bipolar Power Converter

BPC-2CH-S-16V-35A

4 BPC-1CH-F-

16V-70A

LT-EL-SR-PS-CRR-

6201-10

B Bipolar Power Converter

BPC-1CH-F-16V-70A

5 BPC-1CH-S-

16V-200A

LT-EL-SR-PS-CRR-

6103-10

B Bipolar Power Converter

BPC-1CH-S-16V-200A

LBNL Response:

a) Please note that the .zip files listed in Table 1 below include the BOMs and data files required for Mechanical and Electrical Fab/Assem.

b) LBNL Files for ITEMS 1.3, 2.3, 3.3, 4.3, 5.3 contain the BOMs and data files for electrical components, including printed circuit boards, Fab/Assembly

c) LBNL Files for ITEMS 1.2, 2.2, 3.2, 4.2, 5.2 contain the BOMS and data files for mechanical components, including chassis, metal work, harnesses, etc.

d) The Assy P/N highlighted in RED is the corrected number; the vendor-provided table had these in error

TABLE 1

ITEM Assembly Assy P/N REV/File Date

Description LBNL #

1 BPC-2CH-S-

18V-24A

LT-EL-SR-PS-CRR-

6201-10

E Top Level Assembly

1.1 DCL-LT-EL-SR-PS-

CRR-6201-10_REV-E

E Document Control List (DCL)

AL-1821-0504

1.2 Mechanical Files xxx

For BPC.zip

05-20-2025 All Mechanical Fab/Assem files

AL-1821-0507

1.3 Electrical Files xxx for

BPC.zip

05-21-2025 All Electrical Fab/Assem files

AL-1821-0505

2 BPC-4CH-S-

18V-10A

LT-EL-SR-PS-CRR-

6401-10

G Top Level Assembly

2.1 DCL-LT-EL-SR-PS-

CRR-6401-10_REV-G

G Document Control List(DCL)

AL-1821-0508

2.2 Mechanical Files xxx

For BPC.zip

05-14-2025 All Mechanical Fab/Assem files

AL-1821-0513

2.3 Electrical Files xxx for

BPC.zip

05-12-2025 All Electrical

AL-1821-0510

3 BPC-2CH-S-

16V-35A

LT-EL-SR-PS-CRR-

6203-10

B Top Level Assembly

3.1 DCL-LT-EL-SR-PS-

CRR-6203-10_REV-B

B Document Control List(DCL)

AL-1821-0501

3.2 Mechanical Files xxx

For BPC.zip

05-20-2025 All Mechanical Fab/Assem files

AL-1821-0503

3.3 Electrical Files xxx for

BPC.zip

05-21-2025 All Electrical

AL-1821-0502

4 BPC-1CH-F-

16V-70A

LT-EL-SR-PS-CRR-

6102-10

B Top Level Assembly

4.1 DCL-LT-EL-SR-PS-

CRR-6102-10_REV-B

B Document Control List(DCL)

AL-1821-0492

4.2 Mechanical Files xxx

For BPC.zip

05-20-2025 All Mechanical Fab/Assem files

AL-1821-0495

4.3 Electrical Files xxx for

BPC.zip

05-21-2025 All Electrical

AL-1821-0494

5 BPC-1CH-S-

16V-200A

LT-EL-SR-PS-CRR-

6103-10

B Top Level Assembly

5.1 DCL-LT-EL-SR-PS-

CRR-6103-10_REV-B

B Document Control List(DCL)

AL-1821-0498

5.2 Mechanical Files xxx

For BPC.zip

05-20-2025 All Mechanical Fab/Assem files

AL-1821-0500

5.3 Electrical Files xxx for

BPC.zip

05-21-2025 All Electrical

AL-1821-0959

File details come from the government source that posted it. Updated .