AM711437 October 2024 Spec Matrix - NSWCPD Responses.pdf
PDF 950 KB Posted
- Attached to
- N64498-24-R-0050
- Solicitation number
- N6449824R0050
About this file
This document is a Comparison Report that provides Rochester Cable, Inc.'s responses to the customer's requirements for the AN/BRR-6C Tow Cable, as outlined in NAVSEA Drawing 8714275 Rev -.
The report details Rochester Cable's compliance with the customer's requirements for materials, temperature, cable length, conductor and armor design, ribbon fairing, workmanship, and quality assurance provisions. It includes several minor exceptions and clarifications, such as the ribbon fairing hardness, insulation resistance testing, and DC resistance testing being impacted by the uncontrolled production environment. The report also notes that the capacitance value was not tested but provided a calculated value instead. Overall, Rochester Cable indicates it can comply with the majority of the customer's technical requirements.
The related federal contract opportunity, Solicitation Number N64498-24-R-0050, is for the Department of the Navy Naval Sea Systems Command. The solicitation includes amendments 0001-0005, but no other details about the required products or services, response dates, award information, or set asides are provided in the given information.
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Other files
| File | Type | Posted |
|---|---|---|
| N6449824R00500007.pdf | ||
| AM711468 October 2024 Spec Matrix - NSWCPD Responses.pdf | ||
| N6449824R0050 Amendment 6.pdf | ||
| N6449824R00500004.pdf | ||
| N6449824R00500003.pdf | ||
| N6449824R00500001.pdf | ||
| N6449824R00500005.pdf | ||
| N6449824R00500002.pdf | ||
| N6449824R0050.pdf |
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Text version
CUSTOMER NSWC
DRAWING NAVSEA DWG 8714275 Rev - (AN/BRR-6C Tow Cable)
RC DRAWING AM711437 Rev B
DATE 10/22/2024
Exception
Minor Exception
Understood, Complies
Rochester Cable, Inc.
751 Old Brandy Road
Culpeper, Virginia 22701
Tel (+1) 540-825-2111
Fax (+1) 540-825-2238 www.rochestercable.com
Comparison Report
Customer Requirements RC Compliance RC Comments
1.0 Scope Understood.
2.0 Applicable Documents Understood.
2.1 Specifications Understood.
2.2 Standards Understood.
2.3 Commercial Publications Understood.
2.4 Drawings Understood.
2.5 NAVSEA Specifications Understood.
3.0 Requirements Understood.
Table 1
1. Material Comply.
2. Temperature
2.1 Operating Temp Comply.
2.2 Non-Operating Temp. Comply.
3. Cable Length Comply.
4. Conductor Design Understood.
5. Armor Design Understood.
6. Ribbon Fairing
6.1 Ribbon Fairing Material Exception. Hardness should read 90 +/- 6 Shore A.
6.2 Ribbon Fairing Dimensions Comply.
6.3 Ribbon Fairing Installation &
Orientation
Comply.
7. Workmanship Comply.
4.0 Quality Assurance Provisions Understood.
Table 2
1. Construction Comply.
michael.resciniti Sticky Note Concur, will updated at next revision
(AN/BRR-6C Tow Cable)
Culpeper, Virginia 22701
Tel (+1) 540-825-2111
Fax (+1) 540-825-2238 www.rochestercable.com
Comparison Report
2. Materials Comply.
3. Electrical Tests
3.1 Insulated Conductor
Clarification. ●Voltage should say 4,000 Vac/hf – not 4,000
VDC.
3.2 Insulation Resistance
Exception. ●Given that the production and test areas are not environmentally controlled – a temp correction factor will be utilized. RH in the production area can exceed 60% in summer.
● Element A & B’s rated IR is ≥ 30,000 MΩ●kft.
3.3 Dielectric Withstand Voltage Comply.
3.4 DC Resistance
Exception. Given that the production and test areas are not environmentally controlled – a temp correction factor will be utilized. RH in the production area can exceed 60% in summer.
3.5 Capacitance
Clarification. ● Capacitance was not tested by RWC on
Q61731. Calculated value is 20.2 pf/ft.
● It is not clear what 4.1.2.4 of Reference 2.5 is.
4. Hydrostatic Tests Comply. A single 1,367 ft length will be taken from each master production length and tested.
5. Strength Test Comply. It is assumed cable is in a fixed end condition
6 Flexibility Tests Understood.
6.1 Sheaves Comply.
6.2 Loading Conditions Comply.
5.0 Preparation For Delivery
5.1 Comply.
5.2 Comply.
michael.resciniti Sticky Note Concur, will be updated on next rev.
michael.resciniti Sticky Note Values provided are established at a reference condition of 25C at a relative humidity of 50%. Temperature corrections shall be permitted. (methods shall be concurred to by NSWCPD) michael.resciniti Sticky Note Values provided are established at a reference condition of 25C at a relative humidity of 50%. Temperature corrections shall be permitted. (methods shall be concurred to by NSWCPD) michael.resciniti Sticky Note NUWC measured 18.84 on the 1500 ft section. NSWCPD will verify Table 1 on 8714276.
4.1.2.4 of Reference 2.5 is the assembly production spec. (8628346)
(AN/BRR-6C Tow Cable)
Culpeper, Virginia 22701
Tel (+1) 540-825-2111
Fax (+1) 540-825-2238 www.rochestercable.com
Comparison Report
5.3 Comply.
5.4 Understood.
5.5 Understood.
6. Notes
6.1 Understood.
6.2 Understood.
Table 3
Conductor Element A Exception. Single ends of Cu Clad steel are brazed when necessary. Minimum spacing is two full lay lengths
Conductor Element B Comply. -
Electrical Core Comply.
Inner Layer Comply.
Outer Layer Comply.
michael.resciniti Sticky Note Unclear what "single ends" is referring to. Due to early Bend over Sheave failures at NSWCPD, we would like to understand if this condition could have been part of the root cause. Request Rochester provide brazing map of cable for future failure analysis if requirement can't be met.
File details come from the government source that posted it. Updated .