128.240 Hydraulic or pneumatic power and control-materials and pressure design. Subpart C-Main and Auxiliary Machinery 128.310 Fuel. 128.320 Exhaust systems. Subpart D-Design Requirements for 128.410 Ship's service refrigeration systems. 128.420 Keel cooler installations. 128.430 Non-integral keel cooler installations. 128.440 Bilge systems. 128.450 Liquid-mud systems. AUTHORITY: 46 U.S.C. 3306; Department of Homeland Security Delegation No. 0170.1. SOURCE: CGD 82-004 and CGD 86-074, 62 FR 49331, Sept. 19, 1997, unless otherwise noted. Subpart A-General § 128.110 Equipment and systems. (a) Except as provided by this part, the design, installation, testing, and inspection of materials, machinery, pressure vessels, and piping must comply with subchapter F of this chapter. (b) This part contains requirements for equipment and systems commonly found on an OSV. If additional unique systems, such as for low-temperature cargoes, are to be installed, they too must comply with subchapter F of this chapter. § 128.120 Plan approval. or (8) Systems for transfer and control of cargo, for integral tanks or fixed independent tanks, in compliance with § 125.110 of this subchapter. (9) Ship's service and emergency ele trical-generation systems and the auxiliaries vital to the vessel's surviv ability and safety. (10) Any other marine-engineering system identified by the cognizant OCMI as crucial to the survival of the vessel or to the protection of the per sonnel aboard. (b) For the purpose of this sub chapter, a system not identified paragraph (a) of this section is a no vital system. Subpart B-Materials and Pressure Design § 128.210 Class II vital systems-mate rials. Except as provided by §§ 128.230 and 128.240 of this subpart, instead of com plying with part 56 of this chapter, ma terials used in Class II vital piping-sys tems may be accepted by the cognizant OCMI or the Commanding Officer, Ma rine Safety Center, if shown to provide a level of safety equivalent to materials in subpart 56.60 of this chapter. § 128.220 Class II non-vital systemsmaterials and pressure design. (a) Except as provided by §§ 128.230 128.240, and 128.320 of this subpart. Class II non-vital piping-system need not meet the requirements for materials and pressure design of subchapter F of this chapter. (b) Piping for salt-water service must be of a corrosion-resistant material and, if ferrous, be hot-dip galvanized of be at least of extra-heavy schedule i wall thickness. (c) Each Class II non-vital piping-sys tem must be certified by the builder a suitable for its intended service. written certificate to this effect mus be submitted with the plans require by § 127.110(d) of this subchapter. (d) The cognizant OCMI will revie the particular installation of each sys tem for the safety hazards identified i paragraphs (a), (b)(1), and (c) throug (k) of § 56.50-1 of this chapter, and w add requirements as appropriate. 28.230 Penetrations of hulls and wai tertight bulkheads-materials and pressure design. a) Each piping penetration, in each khead required by this subchapter be watertight, must meet the rerements for materials and pressure ign of subchapter F of this chapter. 5) Each overboard discharge and ll connection, up to and including uired shut-off valves, must meet the uirements for materials and prese design of subchapter F of this ipter. pneumatic 28.240 Hydraulic or power and control-materials and pressure design. 2) Each standard piping component ch as pipe runs, fittings, flanges, 1 standard valves) for hydraulic or umatic power and control systems st meet the requirements for matels and pressure design of $128.110, 210, or 128.220 of this part, as approate. b) Any non-standard hydraulic or eumatic component (such as control Ives, check valves, relief valves, and ulators) may be accepted by the gnizant OCMI or the Commanding ficer, Marine Safety Center, if the mponent is certified by the manufacrer as suitable for marine service and 1) The component meets each of the quirements for materials and presre design of subparts 56.60 and 58.30 of is chapter and if its service is limited the manufacturer's rated pressure; (2) The service of the component is nited to 1⁄2 the manufacturer's recnmended maximum allowable workg pressure (MAWP) or 10 the compoent's burst pressure. Burst-pressure sting is described in ANSI B 31.1, aragraph 104.7.A, and must be conicted to comply with Paragraph A-22, ection I, ASME Boiler and Pressure essel Code. Written certification of esults of burst-pressure testing must submitted with the plans required y §127.110(d) of this subchapter. (a) Except as provided by paragraph (b) of this section, each internal-combustion engine installed on an OSV, whether for main propulsion or for auxiliaries, must be driven by a fuel having a flashpoint of not lower than 43 °C (110 °F) as determined by ASTM D 93 (incorporated by reference, see § 125.180). (b) The use of a fuel with a flashpoint of lower than 43 °C (110 °F) must be specifically approved by the Commandant (G-MSE), except in an engine for a gasoline-powered rescue boat. [CGD 82-004 and CGD 86-074, 62 FR 49331, Sept. 19, 1997, as amended by USCG-2000-7790, 65 FR 58463, Sept. 29, 2000] § 128.320 Exhaust systems. No diesel-engine exhaust system need meet the material requirements in § 58.10-5(d)(1)(i) of this chapter if the installation is certified as required by § 128.220(c) of this part. Subpart D-Design Requirements for Specific Systems § 128.410 Ship's service refrigeration systems. No self-contained unit either for airconditioning or for refrigerated spaces for ship's stores need comply with § 58.20-5, 58.20-10, 58.20-15, 58.20–20(a), or 58.20-20(b) of this chapter if— (a) The unit uses a fluorocarbon refrigerant allowed by part 147 of this chapter; (b) The manufacturer certifies that the unit is suitable for its intended purpose; and (c) Electrical wiring meets the applicable requirements in subchapter J of this chapter. § 128.420 Keel cooler installations. (a) Except as provided by this section, each keel cooler installation must comply with $56.50-96 of this chapter. (b) Approved metallic flexible connections may be located below the deepest-load waterline if the system is a closed loop below the waterline and if its vent is located above the waterline. (c) Fillet welds may be used in the attachment of channels and half-round pipe sections to the bottom of the vessel. (d) Short lengths of approved nonmetallic flexible hose fixed by metallic or non-metallic hose-clamps may be used at machinery connections if— (1) The clamps are of a corrosion-resistant material; (2) The clamps do not depend on spring tension for their holding power; and (3) Two of the clamps are used on each end of the hose, except that one clamp may be used on an end expanded or beaded to provide a positive stop against hose slippage. (4) The clamps are resistant to vibration, high temperature, and brittle ness. [CGD 82-004 and CGD 86-074, 62 FR 49331, Sept. 19, 1997, as amended by USCG-2000-7790, 65 FR 58463, Sept. 29, 2000] § 128.430 Non-integral keel cooler installations. (a) Each hull penetration for a nonintegral keel cooler installation must be made through a cofferdam or at a seachest and must be provided with isolation valves fitted as close to the sea inlet as possible. (b) Each non-integral keel cooler must be protected against damage from debris and grounding by protective guards or by recessing the cooler into the hull. [CGD 82-004 and CGD 86-074, 62 FR 49331, Sept. 19, 1997, as amended by USCG-2000-7790, 65 FR 58463, Sept. 29, 2000] § 128.440 Bilge systems. (a) Except as provided by this section, each bilge system must comply with §§ 56.50-50 and 56.50-55 of this chapter. (b) If the steering room, engine room, centerline passageway, forward machinery space, and compartment containing the dry-mud tanks are the only below-deck spaces that must be fitted with bilge suctions, the vessel may be equipped to the standards of §§ 56.50-50 and 56.50-57 of this chapter applicable to a dry-cargo vessel of less than 55 meters (180 feet) in length. .530 General alarm. .540 Remote stopping-systems on OSVs of 100 or more gross tons. 550 Power for cooking and heating. 560 Engine-order telegraphs. UTHORITY: 46 U.S.C. 3306; Department of neland Security Delegation No. 0170.1. OURCE: CGD 82-004 and CGD 86-074, 62 FR 32, Sept. 19, 1997, unless otherwise noted. Subpart A-General Provisions 9.100 General. "his part contains requirements for design, construction, and installa"ʼn of electrical equipment and sysis including power sources, lighting, tors, miscellaneous equipment, and ety systems. 9.110 Applicability. "xcept as specifically provided in Is part, electrical installations on Vs must comply with subchapter J this chapter. 29.120 Alternative standards. a) An OSV of 19.8 meters (65 feet) in gth or less may meet the following uirements of the American Yacht 1 Boat Council Projects, where appli›le, instead of § 129.340 of this part: 1) E-1, Bonding of Direct Current stems. 2) E-8, AC Electrical Systems on ats. 3) E-9, DC Electrical Systems on ats. b) An OSV with an electrical instalion operating at a potential of less an 50 volts may comply with 33 CFR 3.430 instead of § 129.340 of this part. bpart B-General Requirements 29.200 Design, maintenance. installation, and Electrical equipment on a vessel ust be designed, installed, and mainined to (a) Provide services necessary for fety under normal and emergency nditions; (b) Protect crew members, offshore orkers, and the vessel from electrical azards, including fire, caused by or iginating in electrical equipment and ectrical shock; (c) Minimize accidental personal contact with energized parts; and (d) Prevent electrical ignition of flammable vapors. § 129.210 Protection from wet and corrosive environments. (a) Electrical equipment used in the following spaces must be drip-proof: (1) A machinery space. (2) A space normally exposed to splashing, water wash-down, or other wet conditions within a galley, a laundry, or a public washroom or toilet room that has a bath or shower. (3) Every other space with similar wet conditions. (b) Electrical equipment exposed to the weather must be watertight. (c) Electrical equipment exposed to corrosive environments must be of suitable construction and must be resistant to corrosion. § 129.220 Basic safety. (a) Electrical equipment and installations must be suitable for the roll, pitch, and vibration of the vessel under way. (b) All equipment, including switches, fuses, and lampholders, must be suitable for the voltage and current used. (c) Receptacle outlets of the type providing a grounded pole or a specific direct-current polarity must be of a configuration that does not permit improper connection. (d) Electrical equipment and circuits must be clearly marked and identified. (e) Any cabinet, panel, box, or other enclosure containing more than one source of power must be fitted with a sign warning persons of this condition and identifying the circuits to be disconnected. Subpart C-Power Sources and Distribution Systems § 129.310 Power sources. (a)(1) Each vessel that relies on electricity to power the following loads must be arranged so that the loads can be energized from at least two sources of electricity: (i) Any system identified as a vital system in §128.130(a) of this subchapter. (2) A vessel with batteries of enough capacity for 3 hours of continuous operation to supply the loads specified in paragraph (a)(1) of this section, and with a generator or alternator driven by a propulsion engine, complies with paragraph (a)(1) of this section. (b) Where a generator driven by a propulsion engine is used as a source of electrical power, no speed change, throttle movement, or change in direction of the propeller shaft of the vessel may interrupt power to any of the loads specified in paragraph (a)(1) of this section. § 129.315 Power sources for OSVs of 100 or more gross tons. (a) The requirements of this section apply instead of those in subpart 111.10 of this chapter. (b) If a generator provides electrical power for any system identified as a vital system by §128.130(a) of this subchapter, at least two power-generating sets must be provided. At least one set must be independent of the main propulsion plant. A generator not independent of the main propulsion plant must comply with §111.10-4(d) of this chapter. With any one generating set stopped, the remaining set or sets must provide the power necessary for the loads required by this section. § 129.320 Generators and motors. (a) Each generator and motor, except a submersible-pump motor, must be(1) In an accessible space, adequately ventilated and as dry as practicable; and (2) Mounted above the bilges to avoid damage by splash and to avoid contact with low-lying vapors. (b) Each generator and motor must be designed for an ambient temperature of 50 °C (122 °F), except that— (1) If the ambient temperature, in the space where a generator or motor is, does not exceed 40 °C (104 °F) under normal operating conditions, the generator or motor may be designed for an ambient temperature of 40 °C (104 °F); and (2) A generator or motor designed for an ambient temperature of 40 °C (104) °F) may be used in a location where the ambient temperature is 50 °C (122 °F). the generator or motor is derated to & percent of the full-load rating and i the rating or setting of the overcurrent devices of the generator or motor is re duced accordingly. (c) For each generator rated at 5 volts or more, a voltmeter and an am meter used for measuring voltage and current while the generator is in oper ation must be provided. For each alter nating-current generator, a means for measuring frequency must also be pro vided. To ensure satisfactory operation of each generator, additional control equipment and measuring instruments, if needed, must also be provided. (d) Each generator must have a nameplate attached to it indicating(1) Name of manufacturer, type of generator, and designation of frame; (2) Output in kilowatts, or horse power rating; (3) Kind of rating (continuous, over load, or other); (4) Amperes at rated load, voltage. and frequency; (5) Number of phases, if applicable: (6) Type of windings, if DC; (7) When intended for connection in a normally grounded configuration, the grounding polarity; and (8) For a generator derated to comply with paragraph (b)(2) of this section the derated capacity. (e) Each motor must have attached to it a nameplate containing the infor mation required by Article 430 of NFPA 70. § 129.323 Multiple generators. If an OSV uses two or more genera tors to supply electricity for the ship service loads, to comply with § 129.310(a) of this subpart, the fol lowing requirements must be met: (a) Each generator must have independent prime mover. (b) The circuit breaker of a generato to be operated in parallel with anothe generator must comply with §§111.12 11(f), 111.30–19(a), and 111.30–25(d) of thi chapter. (c) The circuit breaker of a generato not to be operated in parallel with an other generator must be interlocked t |