1. NAVSEA 05Z3 Electrical Systems Technical Update
Presented at the National Shipbuilding Research Program
Electrical Technologies Panel Meeting
All Panel Meetings
Charleston, SC
March 14, 2019
Christopher Nemarich
Engineering Manager
Electrical Systems Ships – SEA 05Z33
NAVAL SEA SYSTEMS COMMAND
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

2. NAVSEA 05Z Update to NSRP Status of MIL-STD-2003 B EPISM
Summary of Selected Current Projects
Related NSRP Electrical Technologies Panel Projects
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

3. Updates to MIL-STD-2003 MIL-STD-2003 Electric Plant Installations
Latest NAVSEA approved methods from shipyard standard electrical installation methods drawings from shipyards.
Final Revisions Completed in Dec 2018
Submitted to SEA 08 for Review 31 Jan 2019
Publication expected mid-2019
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

4. 05Z Electrical Systems Updates
MIL-STD-2003 Rev B - Electric Plant Installation Standard Methods for Surface Ships and Submarines
Added new methods based on Government approved shipyard standard drawings; Newport News, Electric Boat, Ingalls, and Bath Iron Works
Updated references; replaced canceled references.
Use of “Inactive for new design” documents allowed for maintenance on existing systems but not for new design.
MIL-STD-2042 (Fiber Optic Cable Topology Installation Standard Methods for Surface Ships and Submarines) takes precedence for fiber optic equipment installation.
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

5. 05Z Electrical Systems Updates
MIL-STD-2003 Rev B - Electric Plant Installation Standard Methods for Surface Ships and Submarines
Changes to mounting fastener and material requirements
Added detailed tables for fastener material selection requirements.
Disallowed lock washers due to concerns for compression relaxation.
Limits on the use of washers as shims to achieve a level mounting of electrical enclosures; based on analysis of NNS Method by 05P.
Added torque sequence requirements based on NSTM 075 methods.
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

6. 05Z Electrical Systems Updates
MIL-STD-2003 Rev B - Electric Plant Installation Standard Methods for Surface Ships and Submarines
S9407-AB-HBK-010 Handbook of Shipboard Electromagnetic Shielding Practices
MIL-STD-1310 Shipboard Bonding, Grounding, and Other Techniques for Electromagnetic Compatibility, Electromagnetic Pulse (EMP) Mitigation, and Safety to ensure requirements are met.
T9070‑AL‑DPC-020/077-2 NAVSEA Hazardous Material Avoidance Process to ensure the correct process for hazardous material mitigation.
Installation of higher voltage system cables guidance from shipyard instructions and IEEE 1637.
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

7. 05Z Electrical Systems Updates
MIL-STD B - Cables
Installation of higher voltage system cables guidance from shipyard instructions and IEEE 1637.
Restored use thimbles for cable conductor termination. Added requirements to make thimble installation more reliable.
Added allowance to repair cables with damage directly over conductors with NAVSEA approval. Repair methods added based on shipyard procedures.
New allowance for cable splicing for modular construction
Added a requirement that commercial cable for flexing service be approved by NAVSEA.
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

8. 05Z Electrical Systems Updates
MIL-STD B - Cables
New cable shielding requirements based on Virginia Class standard drawing
Added procedures for securing cables into switchgear from MIL-DTL-32483
New allowance for wire-nut terminations <1 HP motors with leads <9000 circ mils. NNS
2 new methods to terminate motor leads with heat-shrink covers. GDBIW and PSNY
Added method to allow equipment entrance using multi-cable transits.
Added method for gel-in-the-middle protection for topside connectors NAVSEA ltr
Added allowance that cold shrink may be used for cable splicing where water tightness is not required. Partially implements an Enterprise commonality cost reduction recommendation.
Added method for splicing conductor shields. NNS
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

9. 05Z Electrical Systems Updates
MIL-STD B - Equipment
Batteries –high level battery requirements only. Detailed installation requirements moved to appendix 2C.
Clarified that this document does not cover submarine storage batteries
Added requirements for installation of lithium-ion batteries and alkaline batteries.
Added battery support system installation requirements from GSO 313.
Added installation requirements recommended by NSWC PD and UL
Deleted requirement for responsibility for battery charging after installation; covered in GSO 313.
Reference NETOPS #29 (Shore-to-Ship Power Connect and Disconnect Procedures) for coordination between the ship and pier shore power facilities.
Added requirement that exposed metallic components be grounded. Based on personnel electrical safety issues.
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

10. 05Z Electrical Systems Updates
MIL-STD B - Penetrations
Allowance and methods for using RISE multiple cable penetrations (MCP). One of the Enterprise commonality cost reduction items. Not for submarines or nuclear spaces in aircraft carriers.
New reference to NAVSEA DWG Insulation, Passive Fire Protection – Installation Details. This change requires passive fire protection at fire protection boundaries. Includes test requirements of MIL-STD-3020 Fire Resistance of Naval Surface Ships.
New method for MCP installation for EMC applications. NNS
2 new methods for repair of deteriorated weather deck stuffing tube. Avoids expensive replacement with epoxy repair compound. NNS and MARMC
New methods for square frame - rounded corner MCPs. The rounded corner MCPs reduce the risk of cracks forming in decks and bulkheads that are subjected to heavy loading. NNS
New installation requirements for size 8 MCPs. MIL-DTL-24705
Added requirements to prevent inductive heating of power cable phases through penetrations.
Added reference for installation of waveguides through penetrations.
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

11. 05Z Electrical Systems Updates
MIL-STD B - Cableways
Cable tag and conductor wire marker changes
Incorporated Enterprise Commonality Recommendations to eliminate requirement for cable tags at non-structural bulkheads. Exclusion consistent with 2012 Admiral Eccles letter. Cable tags for systems under SEA 08 cognizance not required for aircraft carrier non-structural bulkheads consistent with the action of PMS 312 letter 12 November 2013.
Referred to applicable ship specifications for ship specific cable tag and marker requirements.
Incorporated Enterprise Commonality Recommendation allowing cable tags to be secured with nylon straps. Consistent with NNS and EB drawings.
Hanger loading, spacing, and tier limitations
Consolidated hanger loading, spacing, and tier limitations and guidance
Refer to applicable ship specifications for habitability requirements for headroom clearance for cableways; avoids conflicts
Guidance for cable support spacing for higher voltage cables
Added allowance for Panduit™ banding for larger cable bundles with NAVSEA approval. Enterprise Commonality cost reduction item to extend the use of Panduit banding.
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

12. 05Z Electrical Systems Updates
MIL-STD B - Connectors
New connector installation retest requirements. Emphasizes push-pull tests are not required (NAVSEA Z July 1996). Refers to SAE-AIR6151 for torque values
New method for reducing cable diameter to achieve proper strain relief for entering a connector; based on NNS drawing
Requirement that cable transflexing requires NAVSEA approval
Added limits on number of cables that can be bifurcated into a connector
New method for waterproofing coaxial connectors. NNS
New method for Multi-Cable Connector Assembly using grommets. Electric Boat drawing approved by NAVSEA letter dtd 22 July 2016 and letter dtd 13 December 18. New method developed by EB and Glen Air. Restricted to certain connector and cable types based on the qualification of the method. This method is superior to current bifurcation methods.
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

13. MIL SPECS, STANDARDS, DRAWINGS
MIL-DTL-32483A Switchgear, Power, Hard-Mounted, Medium Voltage, Naval Shipboard
SRB and comment adjudication completed May 2018.
Comments Received from SEA 08 February 2019
Publication expected May2019
MIL-DTL-xx653 New Switchgear, Power, Shock-Mounted, Low Voltage, Naval Shipboard
Created to establish standard construction, testing, and safety requirements for shock-mounted low voltage switchgear that will result in consistent vendor pricing from program to program.
Final Revision In Review
MIL-DTL Cables, Low Smoke (Base spec + all slant sheets)
SRB review complete.
Review and compiled comments. December 2018.
Adjudication of comments. Expected April 2019
Base spec + all associated slant sheets to be finalized. May 2019
Publication expected May 2019
MIL-DTL Cables, Lightweight, Low Smoke (Base spec + all slant sheets)
PDS opened. February 2019
Internal reviews and updates started. March 2019
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

14. MIL SPECS, STANDARDS, DRAWINGS
MIL-DTL-XX654 Arc Fault Detection System Performance Specification
Now a Detailed Spec
Technical Issues being addressed.
Adjudicated comments sent back to reviewers for concurrence. Due March 29.
NAVSEA 08 to review final draft.
Publication expected in CY 2019
NAVSEA C Indicator/Indicating System Liquid Level Application/Selection Guide
PDS Open
Incorporate latest guidance and revisions to installation drawings
Revisions to be distributed for comment March 2019.
MIL-T Transformers, Power, Distribution, Single Phase, 400 Hertz 01-JUN-1973
NEW PDS
Routine updates to ensure currency of specifications
MIL-T Transformers, Power, Step Down, Single-Phase, 60 Hertz, 1-KVA 03-JUL-1985
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

15. NSRP Electrical Technology Panel Projects
05Z Endorsed Projects
Distributed Temperature Sensing for Inspection Electrical Panels on Navy Ships – completed.
Follow on efforts TBD for monitoring for Arc Fault prevention.
Evaluation of Efficacy of Self-Sealing Cable Transit Devices for Aluminum Bulkheads and Decks in Non-Watertight Boundaries
Test plans approved
Testing starts March 12 and concludes week of March 25
Low Voltage Shipboard Lighting Feasibility Study
Advanced Navigation Lighting System New
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.