Specification - Electrical Systems (SWBS 300-399)

300-1.1 [Orig] The craft electrical system shall support the operations described in Section 044. The electrical system design and arrangement shall provide the following performance capabilities:

300-1.1.1 [Orig] Capability to operate continuously with both engines running at idle speed, with craft functional loads supplied by the electric generating sources and craft batteries maintained fully-charged.

300-1.1.2 [Orig] Capability to return to base using the electric generating source(s) capacity of a single engine if either engine is lost.

300-1.1.3 [Orig] Capability to operate specified emergency loads from craft battery power for a period of four hours.

300-1.1.4 [Orig] Segregation of the vital/emergency loads from the non-vital loads to allow for rapid shedding of non-vital loads during conditions described in 300-1.1.2 and 300-1.1.3. Minimal operator intervention shall be required to shed non-vital loads and to restore the electrical distribution system to normal service.

300-1.1.5 [Orig] Capability to operate in a mission-ready mode when moored pierside and connected to shore power. The electrical distribution arrangement shall ensure the moored craft meets the mission readiness and response requirements of Section 044.

300-1.2 [Orig] 24 VDC, 12 VDC and 120 VAC electrical generating and distribution systems shall be provided.

300-1.3 [Orig] The design, construction and installation of all system components shall be suitable in all respects for marine service and the intended application in accordance with ABYC Project E-11, AC & DC Electrical Systems on Boats, unless otherwise specified herein. Electrical components shall be selected for maximum longevity and corrosion resistance.

300-1.4 [Orig] System and equipment grounding and bonding shall be in compliance with ABYC Project E-11, AC & DC Electrical Systems on Boats. Electrical equipment bonding and personnel safety grounding shall be in accordance with MIL-STD-1310G.

300-1.5 [Orig] Electrical equipment shall be selected which is compatible and operational with the electrical power frequency, voltages and amperage fluctuations, excursions and tolerances of the electrical power generation and distribution system for all operating conditions in accordance with ANSI-C84.1. Equipment shall operate such that when power is interrupted and restored (i.e. power transfer) no damage will result to any component or part of the equipment.

300-1.6 [Orig] Electrical enclosures shall be rated for the intended use and environmental conditions contained in Section 070 in accordance with NEMA 250 and/or IEC 60529 IP 55 and IP 56.

300-1.7 [Orig] The Contractor shall develop an Electrical Load Analysis (ELA) (CDRL 300-001 ) to address craft electrical power generation and consumption requirements under various operating conditions. The ELA shall be used for sizing of alternators, battery banks, battery chargers, power conversion equipment, circuit conductors, and associated equipment.

300-2 [Orig] AC Power System

300-2.1 [Orig] A 120 VAC single phase, three wire, 60 hertz electrical power generation and distribution system shall be installed in accordance with ABYC Project E-11, AC & DC Electrical Systems on Boats. The 120 VAC system (per Section 320-4) shall include a shore power feed (Section 320-7), power generation, distribution panels, associated cabling and equipment.

300-3 [Orig] DC Power System

300-3.1 [Orig] A 24 VDC two wire electrical power generation and distribution system shall be provided for propulsion engine starting and 24 VDC power distribution. The 24 VDC system (per Section 320-2) shall include electric generating source(s) (Section 310), storage batteries (Section 313), distribution panels, associated cabling and equipment.

300-3.2 [Orig] A 12 VDC two wire electrical power generation and distribution system shall be provided for communication, navigation and other electronics loads. The 12 VDC system (per Section 320-3) shall include DC-DC converters (Section 314-2), distribution panels, associated cabling and equipment.

301 [Orig] WIRING AND ELECTRIC CABLE

301-1 [Orig] General

301-1.1 [Orig] Unless otherwise specified, all builder-furnished electrical cable shall be unarmored commercial marine multi-conductor cable, IEEE STD 45-approved and USCG accepted. Cable shall have tinned copper conductors, thermosetting jacket (cross-linked polyolefin outer sheath with non-PVC conductor insulation) and flexible conductor stranding per ASTM B-33.

301-1.2 [Orig] Individual insulated conductors for internal wiring of equipment (e.g., enclosures, panels, connection boxes) wired by the builder shall be tinned stranded copper wire conforming to UL 1426. Single conductor cables per Section 301-1.1 shall be used for battery/starting circuits. Solid copper wire shall not be used.

301-1.3 [Orig] The rated current-carrying capacity of cables and wires shall not be less than the maximum expected steady-state current of the circuit. Cables for communications, navigation, propulsion controls, electronics and any other loads susceptible to voltage drop problems shall be sized to achieve 3% maximum voltage drop between the voltage source and the load. Voltage drop for all other loads shall be in accordance with ABYC. Starting cables shall be sized in accordance with engine OEM guidance. Feeder cables for power and lighting distribution panels shall include sufficient current-carrying capacity to supply connected loads and the required spare circuits in the panel, as provided in Section 320-5.1 for future load growth.

301-2 [Orig] Cable Installation and Wiring Methods

301-2.1 [Orig] Cabling/conductors passing through watertight boundaries, decks or bulkheads shall be installed to maintain watertight integrity of the structure and protected against chafing by the use of abrasion-resistant packing. Stuffing tubes (ASTM F1836M-97) or multi-cable penetrators/transits may be used for the passage of cables through watertight boundaries, including decks or bulkheads. Where cables pass through non-watertight structure, a suitable bushing shall be used to prevent cable damage.

301-2.2 [Orig] Cables shall be protected from mechanical damage as far as practicable. Protection afforded by the boat structure shall be used to the maximum extent possible. Cables shall not be located or shall be protected from damage where they may be subject to misuse such as a step or handholds. Cables shall be routed as high as practicable above the bilge. Cables shall not be located behind or embedded in insulation, or where excessive heat and gases may be encountered, such as above engines, through ventilation ducts, or in fuel tanks.

301-2.3 [Orig] Wires and cables shall be kept completely clear of engine removal soft patches, except for interior lighting wires and cables.

301-2.4 [Orig] Cables and wires shall be grouped into harnesses wherever possible. Individual wires/cables and harnessed wires/cables shall be supported with stainless steel clamps or straps. Cable supports shall be spaced no more than 18 inches apart and attached to fixed structural members of the craft. Clamps or straps used for wire and cable support shall each be secured by two screws, except that clamps supporting one cable, number 10 AWG twin (or smaller), or multi-cables which do not exceed 3/4 inch diameter, may be of the one screw type. Metal supports shall be designed to secure cable without damage to insulation and shall be at least 1/2 inch wide. Non-metallic clamps or straps shall only be used inside consoles or electrical enclosures.

301-2.5 [Orig] Cables shall not be bent to a radius of less than 6 times the cable diameter, except that overall shielded cable shall not be bent to a radius of less than 12 times the cable diameter or OEM requirements, which ever is greater. If OEM bending requirements are less than stated above, the OEM requirements may only be used with the approval of the KO. Cable bends at equipment entrances shall be made via angled stuffing tubes or angled box connections as applicable.

301-2.6 [Orig] Cables or wiring leading to shock-mounted equipment shall be formed into a coil or loop to minimize the effect of movement or vibration.

301-2.7 [Orig] Cable and wire connections shall be made within electrical equipment enclosures, junction boxes or connectors, as applicable. Where equipment is designed for external connection (example: starters), exposed energized terminals shall be protected against accidental shorting or accidental contact by personnel by the installation of insulating sleeves, removable terminal boots or an insulating barrier.

301-2.8 [A00008] Outside of electrical enclosures and where practical, NEMA 4X connection boxes with screw-type terminal boards shall be utilized for wiring connections. Cables shall be continuous between terminals. In-line splices shall only be used where the cable supplied with OEM equipment is not long enough to reach the termination point, and the installation of a connection box is not practical. Splices shall be made with heat shrink butt splice connectors, covered with heat shrink tubing as shown in Figure 301-1. Where an in-line splice would be authorized under this paragraph, a Deutsch DT Series GP connector may be used to facilitate maintenance, repair, and replacement of the OEM equipment.

Figure 301-1. Typical In-line Cable Splice

301-2.9 [Orig] Cable entry into watertight, drip proof or submersible enclosures shall be made through watertight stuffing tubes or other watertight penetrations. Stuffing tubes shall be sized properly for the cable and installed in accordance with the manufacturer’s instructions.

301-2.10 [Orig] Cable conductors within equipment or enclosures shall have sufficient length to facilitate tracing, troubleshooting, and opening and closing of hinged doors to prevent conductor damage. Surplus wire length shall be provided to relieve all tension, to allow for disconnection and servicing, and to permit multiple wires to be formed at terminal studs.

301-2.11 [Orig] Conductor groups inside of equipment or enclosures shall be neatly formed and routed to prevent damage without crossing over or obstructing access to terminals. Conductor groups shall be formed using self-clinching wire ties.

301-2.12 [Orig] Ring type terminal lugs shall be installed on each connected conductor, except where a component or a piece of equipment is configured for a different type of connection. Terminal lugs shall conform to UL486A. Installation shall be accomplished with the proper crimping tool in accordance with manufacturer’s instructions. The barrels of the terminals shall be insulated or a short piece of heat shrink insulation sleeving shall be installed over the barrel.

301-2.13 [Orig] No more than four conductors shall be connected to any one terminal or per the manufacturer’s specifications. On barrier type terminal boards no more than two conductors shall be connected to any terminal stud. Where two or more conductors are required, two or more terminal studs shall be used connected by a properly sized jumper.

302 [Orig] ELECTRICAL DESIGNATION AND MARKING

302-1 [Orig] General

302-1.1 [Orig] The RB-M shall have all switches, electrical controls, components, and receptacles marked to identify its function in the electrical system. Labels requiring references to a separately mounted keyed list shall not be used.

302-1.2 [Orig] Cables shall be clearly labeled using aluminum cable tags or shrink tubing with mechanically applied lettering. Corrosion resistant metal (any aluminum alloy is acceptable) cable tags shall be in accordance with Figure 302-1. Cables shall be identified by a short noun or abbreviated name (abbreviations IAW ASME Y14.38, Abbreviations and Acronyms, where applicable) corresponding to the equipment serviced. Cable designations shall also include the power circuit designation or an IEEE- STD 45 Annex B designation prefix where applicable (example: radar antenna, “RADAR, R-RN1”). All permanently installed cables shall be tagged as close as possible to each end. Those cables with both ends within the same compartment/area, and which can be easily traced, may be tagged only once. Where machinery, installed equipment or joiner work make tracing of cable runs difficult, additional tags shall be provided. Cable designations shall be the same as those used on electrical drawings supplied with the boat.

Figure 302-1. Typical Metal Cable Tag Details

302-1.3 [Orig] All conductors shall be labeled at termination points (exception: color coded OEM supplied wire harnesses). Individual conductors shall be labeled with white sleeving, or by other permanent means, with mechanically applied (i.e. type writer, machine printer, etc) markings, Figure 302-2. Each conductor shall be identified using the power circuit or IEEE designation prefix (if applicable), followed by the polarity, lead color or lead number of the conductor. The markings shall be neat and legible. Conductor labels shall be the same as those used on electrical drawings supplied with the boat.

Figure 302-2. Typical Conductor Labels

12P-1(POS)

R-RN1, YEL

302-1.4 [Orig] Power circuits shall be labeled at distribution panels with breaker size, equipment served and an alpha-numeric designation, including voltage, as shown in Figure 302-3.

Figure 302-3. Typical Power Circuit Label

RADAR

12P-1 10 AMP

310 [Orig] DC ELECTRIC GENERATING SOURCES

310-1 [Orig] General

310-1.1 [Orig] At least one electric generating source shall be mounted on each main diesel engine. The electric generating source output voltage range shall suit the craft 24 VDC distribution system. The electric generating source shall be self-limiting type and provided with reverse polarity protection and overload protection. The electric generating source(s) shall have marinization features, including stainless steel hardware, corrosion-resistant exterior finish and anti-fungal coatings on windings. Electric generating source(s) and any associated accessories shall be shielded from water entrance with minimum interference to air flow. Voltage regulators, when required shall be adjustable and shall have a positive means for “locking” the voltage setting so that inadvertent adjustment travel will not occur.

310-1.2 [Orig] With both engines at idle speed, the complete electric generating power system(s) shall deliver power output to meet craft functional load requirements, with sufficient margin for maintaining fully-charged battery banks. At maximum engine RPM, the electric generating source RPM shall not exceed OEM specifications.

310-1.3 [A00008] Unless an automated power management system is provided, the electric generating source distribution system shall have installed battery isolation and be connected so that battery banks and the electric generating source outputs are isolated from each other. The isolation system shall permit charging of each battery bank without potential for electric generating source(s) damage. The isolation system shall be arranged so that both battery banks receive charging current from both engine electric generating systems. With both engines at the same RPM and the electric generating source(s) operating in parallel, the electric generating source(s) shall share the craft’s loads as equally as practicable. If an automated power management system is used:

310-1.3.1 [A00008] Any cross connection between the generating sources and batteries shall be configured to automatically open, disconnecting the two battery banks, if either battery bank falls below or raises above preset configurable voltage points, nominally 25.2VDC and 30VDC unless otherwise agreed to through the Configuration Management process described in SOW 068-3.

310-1.3.2 [A00008] The Contractor shall provide a visual indicator at the primary crew console to indicate whether the generating sources and batteries are cross connected or isolated.

310-1.3.3 [A00008] The Contractor shall provide a control switch at the primary crew console to allow the crew to manually isolate or cross connect the generating sources and batteries. The control switch shall have automatic, open, and closed positions.

310-1.4 [Orig] In the event either engine is lost, the remaining propulsion engine’s electric generating source(s) shall continue to provide power to both battery banks. Sufficient electric generating source(s) capacity shall be provided and supplied to the electrical system to allow the craft to return to base using a single engine.

313 [Orig] BATTERIES AND BATTERY CHARGING

313-1 [Orig] General

313-1.1 [Orig] The RB-M shall have two separate 24 VDC battery banks, one for hotel load and one for engine starting.

313-1.2 [A00008] A battery parallel switch shall be provided to connect both battery banks for emergency power or emergency engine starting. During normal operation this switch will be in either the open or automatic position to ensure proper isolation of the system to prevent battery or power generation equipment damage as specified by paragraph 310-1.3.

313-1.3 [Orig] Selector switches shall be provided to isolate each battery bank per ABYC E-11, AC & DC Electrical Systems on Boats. Switches shall be activated from outside the machinery spaces and spaces containing the batteries.

313-1.4 [Orig] The engine starting battery bank capacity shall meet minimum engine OEM cold cranking specifications (at 0 degrees Centigrade).

313-1.5 [A00014] The batteries (paralleled via emergency switch, Section 313-1.2) shall be sized to provide emergency back up power for at least four hours for the items (and usage factors) shown in Table 313-1, based on the Electrical Load Analysis (CDRL 300-001). Craft distribution to emergency loads shall be arranged as described in Section 320-1.2.

Table 313-1 Emergency Power Requirements

Item	Usage
VHF Radio (441-1)	50% transmit 50% receive
Crew Communications Systems (441-5)	25%
Loud Hailer (441-4)	25%
Navigation Lights (underway) (332-5)	100%
Emergency Lighting (332-1.6)	100%
Propulsion and Steering System Controls	100%
Two Bilge Pumps (529)	100%
Trim Controls (565)	10%
GPS (423-1)	100%
Window Wipers System (One on High) (625-1)	100%
Depth Sounder (423-1)	100%
Alarms System (436)	90% Standby 10% Active
Hub 10baseT Ethernet w/minimum 4 ports (423-1)	100%
Radar/Chart Plotter Display [RDP149/NT] w/ ARP11 ARPA Module Installed & NTSC/PAL Video Interface Kit [P/N 008-523-070] (Navigator Position) (423-1)	100%
Remote Display [RD30] (Visible by Helmsman and Navigator) (423-1)	100%
[XNA10A/3.5] Open Radar Array 3.5 FT 4KW with [RSB0070-064] Radar Antenna Pedestal	100%

313-2 [Orig] Batteries

313-2.1 [Orig] All starting and hotel load batteries shall be the same type, and shall have the same rating, design, manufacturer, and Battery Council International Group size. Batteries may be either maintenance free marine lead-acid sealed gel cell type, built in accordance with IEEE-STD-45, or marine Absorbed Glass Mat (AGM) type. 12 VDC batteries shall be connected in series and parallel to provide required capacity of 24 VDC power for the application.

313-2.2 [Orig] Batteries shall be installed in drip-proof, ventilated battery boxes with a means to hold the battery/battery box combination in place when inverted. Battery installation shall provide adequate clearance for removal and replacement of batteries. Locking type fasteners shall be used for battery terminal connections.

313-3 [Orig] Battery Chargers

313-3.1 [Orig] A self-regulating battery charger fed from the 120 VAC distribution system shall be provided to charge the battery banks and feed 24 VDC and 12 VDC hotel loads when the craft is pierside. This requirement may be met using combination inverter/chargers if the charger portion of the inverter/charger meets the requirements of this section and the inverter/charger is installed in accordance with Section 314-3.

313-3.2 [Orig] The battery charger shall be in accordance with ABYC Project A-20, and shall provide DC output power compatible to the battery manufacturer’s requirements for voltage and current regulation with AC input power fluctuations and excursions supplied within ANSI tolerances for power supplied from the utilities.

313-3.3 [Orig] The battery charger shall have integral current limiting capability, reverse current protection and input/output over-current protection. The battery charger shall incorporate a three stage charging process (bulk – absorption – float/maintenance) to maximize battery performance and service life. The battery charger output voltage shall be selectable to provide output matched to battery OEM specifications. The battery charger shall have over-temperature protection, with a temperature sensor installed at the hotel service battery bank. The battery charger shall have a minimum of two isolated output terminals to prevent feedback between the battery banks.

314 [Orig] POWER CONVERSION EQUIPMENT

314-1 [Orig] Isolation Transformer

314-1.1 [Orig] The RB-M shall have an isolation transformer for the shore power supply, installed in accordance with ABYC E-11, Diagram No. 6 or 7, and the requirements of Section 320-2. The shore power inlet receptacle shall be electrically isolated from the boat in accordance with ABYC E-11.

314-2 [Orig] 24/12 VDC Converters

314-2.1 [Orig] A minimum of two 24/12 VDC converters shall be provided to feed the 12 VDC distribution system per Section 320-3. Converters shall be suitable for marine use. Converter output voltage shall be adjustable to suit 12-Vdc load requirements. Converters shall have integral short circuit and reverse polarity protection.

314-3 [Orig] 24 VDC / 120 VAC Inverters

314-3.1 [Orig] When the 120 VAC system requires inverters, a minimum of two 24 VDC / 120 VAC power inverters shall be provided to feed the 120 VAC distribution system when the craft is underway per Section 320. Inverters shall be standalone DC/AC type or integral to the electric generating source. Inverters shall produce a true sine wave (less than 5% Total Harmonic Distortion) output, with output voltage of 120-Vac Root Mean Square (RMS) (-10%, +4%) at full load, and output frequency of 60 +/- 0.05 Hz.

320 [Orig] GENERAL REQUIREMENTS FOR ELECTRIC POWER DISTRIBUTION SYSTEM

320-1 [Orig] General Requirements

320-1.1 [Orig] The craft electrical distribution system shall be designed so that operation of critical systems (example: electronic engine controls) is not adversely impacted by distribution system voltage or amperage fluctuations/excursions.

320-1.2 [A00005] Craft emergency loads (identified in Section 313-1) shall be segregated from non-vital craft loads and sourced directly from the main bus. Non-vital hotel loads shall be sourced directly from the main bus so they may be shed by manual opening of a single circuit breaker on the main 24 VDC panel.

320-1.3 [Orig] Propulsion starting and control system and steering system loads shall be fed from the engine starting battery banks.

320-1.4 [Orig] Digital meters for current and voltage shall be installed at each main distribution panel to indicate the electrical load of the panel.

320-2 [Orig] 2 4 VDC Power Distribution

320-2.1 [Orig] The 24 VDC power distribution system shall consist of distribution panel(s) and associated components arranged to feed all craft 24 VDC loads.

320-2.2 [Orig] The 24 VDC power distribution system (with exception of propulsion system loads, Section 320-1.3) shall be fed from the hotel load battery bank and engine-driven charging sources (underway) and the battery charger (pierside). The 24 VDC distribution system is the preferred source for DC craft loads. The use of 12 VDC or 120 VAC loads shall be minimized.

320-3 [Orig] 12 VDC Power Distribution

320-3.1 [Orig] The 12V DC power distribution system shall consist of distribution panel(s) and associated components arranged to feed all craft 12 VDC communication and electronics loads.

320-4 [Orig] 12 0 VAC Power Distribution

320-4.1 [Orig] The 120 VAC power distribution system shall consist of distribution panel(s) and associated components arranged to feed craft 120 VAC loads.

320-4.2 [Orig] When pierside the 120 VAC power distribution system shall be fed from shore power (Section 320-7).

320-5 [Orig] Electrical Distribution Panels

320-5.1 [Orig] Power distribution panels shall be fabricated from commercially-available marine grade components meeting the requirements of IEEE Std 45 as applicable for use on small craft. Circuit breakers shall be provided in each panel per Section 320-6. The number of spare circuit breakers provided in each distribution panel shall be 20 percent of the active breakers used in the panel. The spare circuit breakers shall be of the size most frequently used within the panel.

320-5.2 [Orig] Panels with doors shall have quick-acting opening devices to access breakers. Distribution panels that do not have doors shall be provided with circuit breaker guards to prevent accidental activation or deactivation.

320-6 [Orig] Over-current Protection

320-6.1 [Orig] The RB-M shall have over-current and short circuit protective devices for all electrical power distribution circuits. Circuit breakers shall be used in lieu of fuses for primary circuit protection. As a minimum, double-pole circuit breakers shall be used for the main AC shore power breaker and the main breaker provided at each 24 VDC, 12 VDC or 120 VAC distribution panel. Circuit breakers shall be of the 18mm mini-breaker thermal magnetic type and shall be DIN rail mounted within the enclosure. Circuit breakers shall be UL approved and designed to withstand the marine environment.

320-7 [Orig] S hore Power Facility

320-7.1 [Orig] A shore power system shall be provided to supply the craft 120 VAC distribution system when pierside. Electrical service available at the pier will be 120 VAC, single phase, 60 Hz, 100 amps, three wire.

320-7.2 [Orig] The shore power system shall be installed in accordance with ABYC E-11, Diagram No. 6 or 7. The craft shall have a 100-amp shore power inlet receptacle, Hubbell catalog number M4100B12R or equal, electrically insulated from the boat and centrally-mounted to facilitate shore power connection from either side. The receptacle shall have a cover. The shore power inlet shall feed the craft 120 VAC distribution system via an isolation transformer (Section 314-1) and double-pole shore power circuit breaker.

320-7.3 [Orig] A portable cable shall be provided to connect the craft’s shore power inlet receptacle to the pier station. Portable shore power cable shall be 50 feet in length and rated for 100 Amps. The shore power cable shall be an oil and moisture resistant, flexible, portable shore power cable with a reinforced jacket designed for withstanding heavy abuse. The cable shall have Midland Ross/Russelstoll p/n JPS 1023H plug or equal on the pier end. The plug on the boat end shall be a Hubbel Inc., catalog number M4100C12R or equal. In this 120V application the plug shall be wired with the following color code: black for power, white for neutral, green for ground, red unused. Onboard storage for this cable is not required.

320-8 [Orig] Portable Equipment Power Outlets

320-8.1 [A00019] The RB-M shall be provided with four 12 VDC watertight auxiliary/accessory power outlets. One shall be provided adjacent to each of the following locations: the navigator, crew and alternate crew seats; and the galley. If cigarette style outlets are not provided, a pigtail cable shall be provided for each outlet to adapt a standard cigarette lighter-style connector to the outlet mating plug. If required, stowage shall be provided for outlet pigtail cables.

320-8.2 [A00037] The RB-M shall have three120 VAC GFCI watertight duplex marine grade outlets, one in the engine space, one in the pilothouse, and one inside the galley sink cabinet to accommodate the charging of the portable searchlight. These outlets shall be on a 15 amp circuit that is not shared with any other outfit item such as the microwave.

332 [Orig] LIGHTING

332-1 [Orig] General

332-1.1 [Orig] The RB-M’s lighting requirements are shown in Table 332-1. Craft lighting system design, arrangement, equipment selection and installation shall be in accordance with IEEE Std 45 and IESNA RP-12, as applicable to small craft.

332-1.2 [Orig] All lighting shall be fed from the 24 VDC power system. Fixtures shall be water resistant or waterproof as appropriate for location. Fluorescent fixtures shall not be used. Light Emitting Diode (LED)-type lighting fixtures shall be used for emergency fixtures and where appropriate to improve efficiency and longevity of the lighting system. Lighting fixtures shall be located to reduce glare and specular reflection, and to provide adequate distribution within spaces as required for working conditions.

332-1.3 [Orig] The craft general lighting system shall consist of white lighting fixtures installed per Table 332-1 in the numbers and locations required to provide the illumination levels and quality specified in IESNA RP-12. The level of illumination provided shall be as specified for the primary function of the compartment. Wherever general illumination is inadequate for the efficient performance of specific tasks, detail illumination shall be provided with detail lighting fixtures designed for the specific functions. Lighting for each compartment shall be provided with a single switch that is located near the primary compartment entrance. When required, dimmer switches shall be adjacent to the light switch or integral with the light switch.

332-1.4 [Orig] Lighting for night operations shall consist of red lighting fixtures installed per Table 332-1. Red lighting shall be installed to provide illumination that will afford the least practicable interference with dark-adapted vision while still providing sufficient illumination for essential operational functions. Red fixtures installed for illumination of work areas or for specific functions shall be located to best advantage to support that function while casting a minimum amount of light on surrounding areas. Where both red and white lights are installed in the same compartment, a three-position switch shall be installed to provide WHITE / OFF / RED operation.

332-1.5 [Orig] Watertight Degree 1 low intensity lighting shall be provided for deck level illumination of exterior decks and working areas. Low intensity lighting shall be dimmable from full intensity to off. LED fixtures shall be used for low intensity lighting circuits.

332-1.6 [Orig] Watertight Degree 1 white emergency lighting shall be provided per Table 332-1. Emergency lighting shall provide illumination for safe movement within and egress from craft compartments. Particular attention shall be given to illumination of obstacles (e.g., door sills, hatch coamings, etc.) and hazards. Emergency fixtures shall illuminate key watch stations, damage control and safety equipment, ladders, accesses, exit and escape routes, vital machinery, and controls required to facilitate restoration of normal craft electrical power. Emergency lighting shall be located to provide deck level illumination for passage and egress. Power distribution to emergency lighting circuits shall be in accordance with Section 320-2.2. Controls for transfer from General to Emergency lighting shall be accessible from the pilothouse.

Table 332-1 RB-M Lighting Requirements

Compartment	Usage	Type
Pilothouse, Passenger Compartment, Interior Spaces (Including Forepeak and Lazarette)	General	White
	Night Operations	Red
	Emergency	White
Primary and Auxiliary Machinery Spaces	General	White
Primary and Auxiliary Machinery Spaces	Emergency	White
Exterior Deck & Recovery Platforms	General	Waterproof LED Low Intensity Lighting

332-2 [Orig] Searchlight

332-2.1 [Orig] The RB-M shall have a ITT_Jabsco searchlight p/n 62042-4006 or equal.

332-2.2 [Orig] The searchlight shall be mounted in a location that maximizes the ability to focus the light on targets around the perimeter of the RB-M.

332-2.3 [Orig] The control(s) shall be mounted within easy reach of the helmsman and navigator (see Table 410-1).

332-3 [Orig] Law Enforcement Light

332-3.1 [A00040] The RB-M shall have two (2) flashing blue law enforcement light(s) that provide 360 degree visibility while both are energized. The light(s) shall be marine grade, strobe type, and shall be located symmetrically about the vessel centerline minimally affecting crew vision or sightlines. The lights shall be mounted to the front of the mast foundation that is part of the assembly removed during transportation. A single control shall be mounted within easy reach of the helmsman (see Table 410-1). The switch shall be a rocker or toggle style switch and shall not be illuminated. If a rocker style switch is used, it shall be positioned so that the top half of the rocker is in the “down” position when the LE Light is on. If a toggle switch is used, the toggle shall be in the “up” position when the LE Light is on. A label shall be provided to indicate both “off” and “on” conditions to the user.

332-4 [Orig] Floodlights

332-4.1 [Orig] The RB-M shall have port, starboard, forward and aft facing floodlights to illuminate the perimeter of the RB-M out to a distance of 15 feet surrounding the vessel. Floodlight controls at the helmsman station shall allow for selection of the illumination area (forward, aft, port, and starboard). All the switches shall be in one location within the pilothouse arranged for easy operation while minimizing the risk of accidental operation.

332-5 [Orig] Navigation Lights

332-5.1 [Orig] The RB-M shall have navigation lights in accordance with COMDTINST M16672.2 for the inland and international requirements corresponding with underway operations, anchoring, towing astern less than 200 meters, and towing alongside. Perko (LED-type, Series 170) or equal shall be used where practical.

332-5.2 [Orig] The navigation lights shall be powered by a single circuit breaker and switched using a single rotary type selector switch that has positions for: off; anchor; underway; towing aft; towing alongside (inland); towing alongside (international). The switch shall be located as per Table 410-1.

332-6 [Orig] Hand Held Spotlight

332-6.1 [A00014] The RB-M shall have a weather resistant, rechargeable hand held spotlight. See Table 600-1.

332-6.2 [A00014] Reserved.

332-6.3 [A00014] Reserved

332-6.4 [Orig] The light shall be easily accessible and stored in the survivors’ compartment on its 120 Volt charger.