MIL-STD-1310H(NAVY)
(2) When a factory-installed tie point is not available, the bond strap end lug shall be bolted to the equipment at pre-drilled holes in the mounting surface(s).
5.1.3.3.1 Type I bond strap. Type I bond straps shall be used in shipboard topside areas when appropriate for electrical safety equipment operation, EMP effects control and to bond metal-to-metal junctions identified as hull-generated EMI (BBN/IMI) sources.
5.1.3.3.2 Type II bond strap. Type II bond straps shall be used in shipboard topside areas for bonding EMI
source items such as antenna tuners or couplers (see figure 10), equipments, enclosures, and cabinets.
5.1.3.3.3 Type III bond strap. Type III bond straps shall be used in shipboard below deck areas for bonding equipments, enclosures, and cabinets.
5.1.3.3.4 Type IV bond strap. Type IV bond straps shall be used in shipboard below deck areas for bonding equipment utilizing sound isolated mounts or shock mounts (nonmetallic mounts).
5.1.3.3.5 Type V bond strap. Type V bond straps shall be designed as required for unusual situations when a standard bond strap constructed in accordance with MIL-DTL-24749 is not practical. Type V bond straps
shall be approved by the Technical Warrant Authority of this standard only for use in special/specific applications.
5.1.3.3.6 Bond strap attachment methods. The standard methods depicted in figure 11 shall be used for attachment of bond straps.
5.1.4 Submarine equipment grounding. Sound isolated floating platforms, decks, and bedplates shall be grounded to the submarine hull by using Type IV ground straps with lug terminals on each end. These ground straps shall be located a minimum of once every 15 feet along the perimeter of the platform (port and starboard sides) and shall be installed on studs welded to the platform and hull. Ground straps shall be located away from traffic areas, shall have sufficient slack to allow for platform movement without causing a sound short, and shall be accessible for inspection.
NOTE: These are minimum grounding requirements for sound isolated decks, platforms, and bedplates. Ground straps that have been installed by other requirements shall not be removed.
5.2 Hull-generated EMI prevention. Hull-generated EMI, caused by topside nonlinear or intermittent metal-to-metal contact junctions as a result of EM energy induced as nearby antennas are radiated, shall be prevented through:
a. Nonmetallic material
b. Topside stowage practices c. Insulation material
d. Bonding and grounding
5.2.1 Nonmetallic topside material. A nonmetallic substitute shall be used to eliminate (at least one of) the metal item(s) that make up topside metal-to-metal contact junction(s).
a. Nonmetallic substitutes and fabrication practices. Nonmetallic items and fabrication practices to be considered include but are not limited to the following:
(1) Fiberglass or composite stowage lockers and racks, portable-removable stanchions, flagstaffs and jackstaffs.
(2) Hybrid ladder assemblies, i.e., fiberglass or composite siderails - metal treads and handrail(s). (3) Fiberglass or composite (double-insulated) equipment cabinets and motor casings.
(4) Aramid fiber (KEVLAR®, or equivalent) rope lifelines, mast stays, standing rigging and safety nets.
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