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(continued)
(c) The emergency switchboard must be as near as practicable to the emergency power source but not in the same space as a battery emergency power source.
(d) Each alternating-current emergency switchboard must have the equipment required by paragraphs (c) through (e) of this section.
(e) For each connected emergency generator, each emergency switchboard must have:
(1) A circuit breaker that meets §111.12–11;
(2) A disconnect switch or link for each emergency generator conductor, except for a switchboard with a draw out or plug-in type generator circuit breaker that disconnects:
(i) Each generator conductor; and
(ii) If there is a switch in the generator neutral, each ungrounded conductor; and
(3) A pilot lamp connected between the generator and circuit breaker.
(f) For each emergency generator that is not excited from a variable voltage or rotary amplifier exciter that is controlled by a voltage regulator unit acting on the exciter field, each emergency switchboard must have:
(1) A generator field rheostat;
(2) A double pole field switch;
(3) Discharge clips; and
(4) A discharge resistor.
(g) Each emergency switchboard must have the following:
(1) An ammeter with a selector switch that connects the ammeter to show the current for each phase.
(2) A voltmeter with a selector switch that connects the voltmeter to show:
(i) Generator voltage of each phase; and
(ii) Bus voltage of one phase.
(3) Ground detection that meets subpart 111.05 for the emergency lighting system.
(4) A frequency meter.
(5) An exciter field rheostat.
(6) A voltage regulator and a voltage regulator functional cut-out switch.
(h) Each direct-current emergency switchboard must have the:
(1) Equipment under §111.30–27 (b) through (d); and
(2) Ground detection under subpart 111.05 for the emergency lighting system.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28279, June 4, 1996]
Subpart 111.33—Power Semiconductor Rectifier Systems
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§ 111.33-1 General.
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This subpart is applicable to all power semiconductor rectifier systems. In addition to the regulations contained in this subpart, the requirements of §§111.30–11, 111.30–19 and 111.30–21 of this part must be met, if applicable.
§ 111.33-3 Nameplate data.
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(a) Each semiconductor rectifier system must have a nameplate of durable material affixed to the unit that meets the requirements of—
(1) Section 45.11 of IEEE Std 45; or
(2) IEC 92–304 (clause 8).
(b) Each semiconductor rectifier system must have a nameplate containing the words “marine semiconductor rectifier,” and the following information:
(1) Manufacturer's name and address.
(2) Manufacturer's serial number.
(3) Type.
(4) Rated AC volts.
(5) Rated AC amperes.
(6) Number of phases.
(7) Frequency.
(8) Rated DC volts.
(9) Rated DC amperes.
(10) Ambient temperature range.
(11) Duty cycle.
(12) Cooling medium.
(c) If, on small rectifiers, the information required by paragraph (a) of this section cannot be shown because of space limitations, the nameplate must be at least large enough to contain the manufacturer's name and serial number. The remaining information must be shown on the schematic diagram.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28279, June 4, 1996]
§ 111.33-5 Installation.
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Each semiconductor rectifier system must meet the installation requirements, as appropriate, of—
(a) Sections 45.2, 45.7, and 45.8 of IEEE Std 45; or
(b) IEC 92–304.
[CGD 94–108, 61 FR 28279, June 4, 1996]
§ 111.33-7 Alarms and shutdowns.
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Each power semiconductor rectifier must have a high temperature alarm or shutdown, except as provided in §111.33–11.
§ 111.33-9 Ventilation exhaust.
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The exhaust of each forced-air semiconductor rectifier system must:
(a) Terminate in a location other than a hazardous location under Subpart 111.105 of this part; and
(b) Not impinge upon any other electric device.
§ 111.33-11 Propulsion systems.
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Each power semiconductor rectifier system in a propulsion system must meet sections 4/5D2.17.9 and 4/5D2.17.10 of ABS Rules for Building and Classing Steel Vessels or, for mobile offshore drilling units, section 4/3.84 of ABS Rules for Building and Classing Mobile Offshore Drilling Units.
[CGD 94–108, 61 FR 28279, June 4, 1996, as amended at 62 FR 23908, May 1, 1997]
Subpart 111.35—Electric Propulsion
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§ 111.35-1 Electrical propulsion installations.
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Each electric propulsion system installation must meet sections 4/5D2.5, 4/5D2.11, 4/5D2.13, 4/5D2.17.8e, 4/5D2.17.9, and 4/5D2.17.10 of ABS Rules for Building and Classing Steel Vessels or, for mobile offshore drilling units, sections 4/3.79, 4/3.81, 4/3.83, and 4/3.84 of ABS Rules for Building and Classing Steel Vessels.
[CGD 94–108, 61 FR 28279, June 4, 1996, as amended at 62 FR 23908, May 1, 1997]
Subpart 111.40—Panelboards
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§ 111.40-1 Panelboard standard.
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Each panelboard must meet section 23.1 of IEEE Std 45.
[CGD 94–108, 62 FR 23908, May 1, 1997]
§ 111.40-5 Enclosure.
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Each panelboard must have a noncombustible enclosure that meets §§111.01–7 and 111.01–9.
[CGD 94–108, 61 FR 28279, June 4, 1996]
§ 111.40-7 Location.
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Each panelboard must be accessible but not in a bunker or a cargo hold, except a cargo hold on a roll-on/roll-off vessel.
[CGD 94–108, 61 FR 28279, June 4, 1996]
§ 111.40-9 Locking device.
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The door of each panelboard enclosure that is accessible to any passenger must have a locking device.
§ 111.40-11 Numbered switching unit and panelboard directory.
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(a) Each panelboard switching unit must be numbered.
(b) Each panelboard must have:
(1) A circuit directory cardholder; and
(2) A circuit directory that has:
(i) The circuit designation of each circuit;
(ii) A description of the load of each circuit; and
(iii) The rating or setting of the overcurrent protective device for each circuit.
§ 111.40-13 Rating.
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Each panelboard must have a current rating not less than the feeder circuit capacity.
§ 111.40-15 Overcurrent device.
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The total load on any overcurrent device located in a panelboard must not exceed 80 percent of its rating if, in normal operation, the load will continue for 3 hours or more; except if the assembly, including the overcurrent device, is rated for continuous duty at 100% of its rating.
Subpart 111.50—Overcurrent Protection
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§ 111.50-1 Protection of equipment.
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Overcurrent protection of electric equipment must meet the following listed subparts of this chapter:
(a) Appliances, Subpart 111.77.
(b) Generators, Subpart 111.12.
(c) Motors, motor circuits, and controllers, Subpart 111.70.
(d) Transformers, Subpart 111.20.
§ 111.50-2 Systems integration.
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The electrical characteristics of each overcurrent protective device must be compatible with other devices and its coordination must be considered in the design of the entire protective system.
Note to §111.50–2: The electrical characteristics of overcurrent protective devices may differ between standards. The interchangeability and compatibility of components complying with differing standards cannot be assumed.
[CGD 94–108, 61 FR 28279, June 4, 1996]
§ 111.50-3 Protection of conductors.
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(a) Purpose. The purpose of overcurrent protection for conductors is to open the electric circuit if the current reaches a value that will cause an excessive or dangerous temperature in the conductor or conductor insulation. A grounded conductor is protected from overcurrent if a protective device of a suitable rating or setting is in each ungrounded conductor of the same circuit.
(b) Overcurrent protection of conductors. Each conductor must be protected in accordance with its current carrying capacity, except a conductor for the following circuits which must meet the following listed subparts of this chapter:
(1) Propulsion circuits, Subpart 111.35.
(2) Steering circuits, subchapter F of this chapter.
(3) Motor circuits, Subpart 111.70.
(4) Flexible cord and fixture wire for lighting circuits, Subpart 111.75.
(5) Switchboard circuits, Subpart 111.30.
(c) Fuses and circuit breakers. If the allowable current carrying capacity of the conductor does not correspond to a standard fuse or circuit breaker rating which meets article 240–6 of the NEC or IEC 92–202 and the next larger standard fuse or circuit breaker rating is used, it must not be larger than 150 percent of the current carrying capacity of the conductor. The effect of temperature on the operation of fuses and thermally controlled circuit breakers must be taken into consideration.
(d) Parallel overcurrent protective devices. An overcurrent protective device must not be connected in parallel with another overcurrent protective device.
(e) Thermal devices. A thermal cutout, thermal relay, or other device not designed to open a short circuit, must not be used for protection of a conductor against overcurrent due to a short circuit or ground, except in a motor circuit as described in Article 430 of the National Electrical Code or in IEC 92-202.
(f) Ungrounded conductors. A fuse or overcurrent trip unit of a circuit breaker must be in each ungrounded conductor. A branch switch or circuit breaker must open all conductors of the circuit, except grounded conductors.
(g) Grounded conductor. An overcurrent device must not be in a permanently grounded conductor, except:
(1) An overcurrent device that simultaneously opens all conductors of the circuit, unless prohibited by §111.05–17 for the bus-tie feeder connecting the emergency and main switchboards; and
(2) For motor-running protection described in Article 430 of the National Electrical Code or in IEC 92-202.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28279, June 4, 1996; CGD 97–057, 62 FR 51047, Sept. 30, 1997]
§ 111.50-5 Location of overcurrent protective devices.
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(a) Location in circuit. Overcurrent devices must be at the point where the conductor to be protected receives its supply, except as follows:
(1) The generator overcurrent protective device must be on the ship's service generator switchboard. (See §111.12–11(g) for additional requirements.)
(2) The overcurrent protection for the shore connection conductors must meet §111.30–25.
(3) If the overcurrent device that protects the larger conductors also protects the smaller conductors, an overcurrent device is not required at the supply to the smaller conductors.
(4) If the overcurrent device protecting the primary side of a single phase transformer (two wire with single-voltage secondary) also protects the conductors connected to the secondary side, as determined by multiplying the current-carrying capacity of the secondary conductor by the secondary to primary transformer voltage ratio, and this protection meets §111.20–15 of this chapter, an overcurrent device is not required at the supply to the secondary side conductors.
(b) Location on vessel. Each overcurrent device:
(1) Must be:
(i) Readily accessible; and
(ii) In a distribution panelboard, switchboard, motor controller, or similar enclosure; and
(2) Must not be:
(i) Exposed to mechanical damage; and
(ii) Near an easily ignitable material or where explosive gas or vapor may accumulate.
§ 111.50-7 Enclosures.
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(a) Each enclosure of an overcurrent protective device must meet Sections 240–30 and 240–33 of the National Electrical Code.
(b) No enclosure may be exposed to the weather unless accepted by the Commandant.
§ 111.50-9 Disconnecting and guarding.
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Disconnecting and guarding of overcurrent protective devices must meet Part D of Article 240 of the National Electrical Code.
Subpart 111.51—Coordination of Overcurrent Protective Devices
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§ 111.51-1 Purpose.
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The purpose of this subpart is to provide continuity of service for equipment vital to the propulsion, control or safety of the vessel under short-circuit conditions through coordination and selective operation of overcurrent protective devices.
§ 111.51-3 Protection of vital equipment.
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(a) The coordination of overcurrent protective devices must be demonstrated for all potential plant configurations.
(b)Overcurrent protective devices must be installed so that:
(1) A short-circuit on a circuit that is not vital to the propulsion, control, or safety of the vessel does not trip equipment that is vital; and
(2) A short-circuit on a circuit that is vital to the propulsion, control, or safety of the vessel is cleared only by the protective device that is closest to the point of the short-circuit.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 62 FR 23908, May 1, 1997]
Subpart 111.52—Calculation of Short-Circuit Currents
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§ 111.52-1 General.
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The available short-circuit current must be computed—
(a) From the aggregate contribution of all generators that can simultaneously operate in parallel;
(b) From the largest probable motor load; and
(c) With a three phase fault on the load terminals of the protective device.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28279, June 4, 1996]
§ 111.52-3 Systems below 1500 kilowatts.
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The following short-circuit assumptions must be made for a system with an aggregate generating capacity below 1500 kilowatts, unless detailed computations in accordance with §111.52–5 are submitted:
(a) The maximum short-circuit current of a direct current system must be assumed to be 10 times the aggregate normal rated generator currents plus six times the aggregate normal rated currents of all motors that may be in operation.
(b) The maximum asymmetrical short-circuit current for an alternating current system must be assumed to be 10 times the aggregate normal rated generator currents plus four times the aggregate normal rated currents of all motors that may be in operation.
(c) The average asymmetrical short-circuit current for an alternating-current system must be assumed to be 8 1/2 times the aggregate normal rated generator currents plus 3 1/2 times the aggregate normal rated currents of all motors that may be in operation.
§ 111.52-5 Systems 1500 kilowatts or above.
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Short-circuit calculations must be submitted for systems with an aggregate generating capacity of 1500 kilowatts or more by utilizing one of the following methods:
(a) Exact calculations using actual impedance and reactance values of system components.
(b) Estimated calculations using the Naval Sea Systems Command Design Data Sheet DDS 300–2.
(c) Estimated calculations using IEC 363.
(d) The estimated calculations using a commercially established analysis procedure for utility or industrial applications.
[CGD 94–108, 61 FR 28279, June 4, 1996]
Subpart 111.53—Fuses
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§ 111.53-1 General.
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(a) Each fuse must—
(1) Meet the general provisions of article 240 of the NEC or IEC 92–202 as appropriate;
(2) Have an interrupting rating sufficient to interrupt the asymmetrical RMS short-circuit current at the point of application; and
(3) Be listed by an independent laboratory.
(b) Renewable link cartridge-type fuses must not be used.
(c) Each fuse installation must provide for ready access to test the condition of the fuse.
[CGD 94–108, 61 FR 28279, June 4, 1996; 61 FR 33045, June 26, 1996]
Subpart 111.54—Circuit Breakers
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§ 111.54-1 Circuit breakers.
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(a) Each Circuit breaker must—
(1) Meet the general provision of article 240 of the NEC or IEC 92–202, as appropriate;
(2) Meet subpart 111.55 of this part; and
(3) Have an interrupting rating sufficient to interrupt the maximum asymmetrical short-circuit current available at the point of application.
(b) Molded case circuit breakers must not be used in circuits having a nominal voltage of more than 600 volts (1,000 volts for circuits containing circuit breakers manufactured to IEC requirements). Each molded case circuit breaker must meet UL 489 and its marine supplement 489 SA or IEC 947–2 Part 2, except as noted in paragraph (e) of this section.
(c) Circuit breakers, other than the molded case type, that are for use in one of the following systems must meet the following requirements:
(1) An alternating current system having a nominal voltage of 600 volts or less, or 1,000 volts for IEC standard circuit breakers must meet—
(i) IEEE C37.13;
(ii) IEEE Std 331; or
(iii) IEC 947–2, Part 2.
(2) A direct current system of 3,000 volts or less must meet ANSI C37.14 or IEC 947–2, Part 2.
(3) An alternating current system having a nominal voltage greater than 600 volts, or greater than 1,000 volts for IEC standard circuit breakers must meet—
(i) ANSI/IEEE C37.04 including all referenced supplements, IEEE Std 320 including all referenced supplements, and ANSI C37.12; or
(ii) IEC 56.
(d) A circuit breaker must not:
(1) Be dependent upon mechanical cooling to operate within its rating; or
(2) Have a long-time-delay trip element set above the continuous current rating of the trip element or of the circuit breaker frame.
(e) Each circuit breaker located in an engineroom, boilerroom, or machinery space must be calibrated for a 50 degree C ambient temperature. If the circuit breaker is located in an environmentally controlled machinery control room where provisions are made for ensuring an ambient temperature of 40 degree C or less, a circuit breaker must have at least the standard 40 degrees C ambient temperature calibration.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28279, June 4, 1996; 61 FR 33045, June 26, 1996; 62 FR 23908, May 1, 1997]
§ 111.54-3 Remote control.
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Remotely controlled circuit breakers must have local manual means of operation.
[CGD 81–030, 53 FR 17847, May 18, 1988]
Subpart 111.55—Switches
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§ 111.55-1 General.
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(a) Each switch must meet Article 380 of the National Electrical Code.
(b) Each switch that is in the weather must be in a watertight enclosure and be externally operable.
§ 111.55-3 Circuit connections.
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The load side of each circuit must be connected to the fuse end of a fused-switch or to the coil end of a circuit breaker, except a generator which is connected to either end of a circuit breaker.
Subpart 111.59—Busways
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§ 111.59-1 General.
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Each busway must meet article 364 of the NEC.
[CGD 94–108, 61 FR 28280, June 4, 1996]
§ 111.59-3 No mechanical cooling.
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A busway must not need mechanical cooling to operate within its rating.
[CGD 94–108, 61 FR 28280, June 4, 1996]
Subpart 111.60—Wiring Materials and Methods
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§ 111.60-1 Cable construction and testing.
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(a) Each marine shipboard cable must meet all of the construction and identification requirements of either IEEE Std 45, IEC 92–3, IEC 92–350, IEC 92–353, UL 1309, MIL-C-24640A, or MIL-C-24643A (incorporated by reference, see §110.10–1 of this chapter), and the respective flammability tests contained in them and be of a copper stranded type.
Note to Paragraph (a): MIL-C-915 cable is acceptable only for repairs and replacements in kind. MIL-C-915 cable is no longer acceptable for alterations, modifications, conversions, or new construction. (See §110.01–3 of this chapter).
(b) Each cable constructed to IEC 92–3 or IEC 92–353 must meet the flammability requirements of IEC 332–3, Category A.
(c) Electrical cable that has a polyvinyl chloride insulation with a nylon jacket (Type T/N) must meet UL 1309 or must meet the requirements for polyvinyl chloride insulated cable in section 18 of IEEE Std 45. If meeting the requirements for polyvinyl chloride insulated cable in IEEE Std 45, section 18, the following exceptions apply—
(1) The thickness of the polyvinyl chloride insulation must meet UL 83 for type THWN wire;
(2) Each conductor must have a nylon jacket;
(3) The thickness of the nylon jacket must meet UL 83 for type THWN wire;
(4) The material of the nylon jacket must meet ASTM D 4066 (incorporated by reference, see §110.10–1 of this chapter);
(5) The cable must have identification provided by a durable printing or embossing on the cable jacket or a marker under the cable jacket that gives, at intervals not exceeding 610 mm (24 inches), the information required by section 18.8 of IEEE Std 45; and
(6) Type T (T/N) insulations are limited to a 75° C maximum conductor temperature rating.
(d) Electrical cable regardless of construction must meet, at a minimum, all of the performance and marking requirements of section 18 of IEEE Std 45.
(e) Medium voltage electric cable must meet the requirements of IEEE Std 45 and UL 1072, where applicable, for cables rated above 5,000 volts.
(f) Direct current electric cable, for industrial applications only, may be applied in accordance with IADC-DCCS-1/1991.
[CGD 94–108, 61 FR 28280, June 4, 1996, as amended at 62 FR 23908, May 1, 1997; USCG 1999–5151, 64 FR 67182, Dec. 1, 1999; USCG–1999–6096, 66 FR 29911, June 4, 2001]
§ 111.60-2 Specialty cable for communication and RF applications.
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Specialty cables that cannot pass the flammability test contained in IEEE Std 45, IEEE Std 1202, ANSI/UL 1581 test VW–1, or IEC 332–3 Category A due to unique construction properties, such as certain coaxial cables, must—
(a) Be installed physically separate from all other cable; and
(b) Have fire stops installed—
(1) At least every 7 meters (21.5 feet) vertically, up to a maximum of 2 deck heights;
(2) At least every 15 meters (46 feet) horizontally;
(3) At each penetration of an A or B Class boundary;
(4) At each location where the cable enters equipment; or
(5) In a cableway that has an A–60 fire rating.
[CGD 94–108, 61 FR 28280, June 4, 1996]
§ 111.60-3 Cable application.
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(a) Cable constructed according to IEEE Std 45 must meet the cable application provisions of section 19 of IEEE Std 45. Cable constructed according to IEC 92–3, IEC 92–353, or UL 1309 must meet the provisions of section 19 of IEEE Std 45, except 19.6.1, 19.6.4, and 19.8. Cable constructed according to IEC 92–3 and IEC 92–353 must comply with the ampacity values of IEC 92–352, Table 1.
(b) Type T/N cables must meet section 19 of IEEE Std 45 for Type T insulation.
(c) Cable constructed according to IEEE Std 45 must be derated according to Table A6, Note 6, of IEEE Std 45. Cable constructed according to IEC 92–3 or IEC 92–353 must be derated according to IEC 92–352, paragraph 8. MIL-C-24640A and MIL-C-24643A cable must be derated according to MIL-HDBK-299(SH).
(d) Cables for special applications defined in section 19 of IEEE Std 45 must meet the provisions of that section.
[CGD 94–108, 61 FR 28280, June 4, 1996, as amended at 62 FR 23908, May 1, 1997; USCG–1999–6096, 66 FR 29911, June 4, 2001]
§ 111.60-4 Minimum cable conductor size.
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Each cable conductor must be #18 AWG (0.82 mm 2 ) or larger except—
(a) Each power and lighting cable conductor must be #14 AWG (2.10 mm 2 ) or larger; and
(b) Each thermocouple, pyrometer, or instrumentation cable conductor must be #22 AWG (0.33 mm 2 ) or larger.
[CGD 94–108, 61 FR 28280, June 4, 1996]
§ 111.60-5 Cable installation.
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(a) Each cable installation must meet—
(1) Sections 20 and 22, except 20.11, of IEEE Std 45; or
(2) IEC 92–3 and paragraph 8 of IEC 92–352.
(b) Each cable installation made in accordance with paragraph 8 of IEC 92–352 must utilize the conductor ampacity values of Table I of IEC 92–352.
(c) Cable must not be located in any tanks except to supply equipment or instrumentation specially designed for and compatible with such location and whose function require its installation in the tank. The cable must be compatible with the liquid or gas in the tank or be protected by an enclosure.
(d) Braided cable armor or cable metallic sheath must not be used as the grounding conductor.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28280, June 4, 1996]
§ 111.60-6 Fiber optic cable.
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Each fiber optic cable must—
(a) Be constructed to pass the flammability test contained in IEEE Std 45, IEEE Std 1202, ANSI/UL 1581 test VW–1, or IEC 332–3 Category A; or
(b) Be installed in accordance with §111.60–2.
[CGD 94–108, 61 FR 28280, June 4, 1996]
§ 111.60-7 Demand loads.
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Generator, feeder, and bus-tie cables must be selected on the basis of a computed load of not less than the demand load given in Table 111.60–7.
Table 111.60-7_Demand Loads
------------------------------------------------------------------------
Type of circuit Demand load
------------------------------------------------------------------------
Generator cables...................... 115 percent of continuous
generator rating.
Switchboard bus-tie, except ship's 75 percent of generating
service to emergency switchboard bus- capacity of the larger
tie. switchboard.
Emergency switchboard bus-tie......... 115 percent of continuous rating
of emergency generator.
Motor feeders......................... Article 430, National Electrical
Code.
Galley equipment feeder............... 100 percent of either the first
50 KW or one-half the connected
load, whichever is the larger,
plus 65 percent of the
remaining connected load, plus
50 percent of the rating of the
spare switches or circuit
breakers on the distribution
panel.
Lighting feeder....................... 100 percent of the connected
load plus the average active
circuit load for the spare
switches or circuit breakers on
the distribution panels.
Grounded neutral of a dual voltage 100 percent of the capacity of
feeder. the ungrounded conductors when
grounded neutral is not
protected by a circuit breaker
overcurrent trip, or not less
than 50 percent of the capacity
of the ungrounded conductors
when the grounded neutral is
protected by a circuit breaker
overcurrent trip or overcurrent
alarm.
------------------------------------------------------------------------
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by USCG–2004–18884, 69 FR 58348, Sept. 30, 2004]
§ 111.60-9 Segregation of vital circuits.
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(a) General. A branch circuit that supplies equipment vital to the propulsion, control, or safety of the vessel must not supply any other equipment.
(b) Passenger vessels. (1) Each passenger vessel with firescreen bulkheads that form main fire zones must have distribution systems arranged so that fire in a main fire zone does not interfere with essential services in another main fire zone.
(2) Main and emergency feeders passing through a main fire zone must be separated vertically and horizontally as much as practicable.
§ 111.60-11 Wire.
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(a) Wire must be in an enclosure.
(b) Wire must be component insulated.
(c) Wire, other than in switchboards, must meet the requirements in sections 19.6.4 and 19.8 of IEEE Std 45; MIL-W-76D; MIL-W-16878F; UL 44; UL 83; or equivalent standard.
(d) Switchboard wire must meet subpart 111.30 of this part.
(e) Wire must be of the copper stranded type.
[CGD 94–108, 61 FR 28281, June 4, 1996, as amended at 62 FR 23908, May 1, 1997; 62 FR 27659, May 20, 1997]
§ 111.60-13 Flexible electric cord and cables.
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(a) Construction and testing. Each flexible cord and cable must meet the requirements in section 19.6.1 of IEEE Std 45, article 400 of the NEC, NEMA WC 3, NEMA WC 8, or UL 62.
(b) Application. A flexible cord must be used:
(1) Only as allowed under Sections 400–7 and 400–8 of the National Electrical Code; and
(2) In accordance with Table 400–4 of the National Electrical Code.
(c) Allowable current-carrying capacity. A flexible cord must not carry more current than allowed under Table 400–5 of the National Electrical Code, NEMA WC 3 or NEMA WC 8.
(d) Conductor size. Each flexible cord must be No. 18 AWG (0.82 mm 2 ) or larger.
(e) Splices. Each flexible cord and cable must be without splices or taps except for a cord or cable No. 12 AWG (3.3 mm 2 ) or larger spliced for repairs in accordance with §111.60–19.
(f) Pull at joints and terminals. Each flexible cord and cable must be connected to a device or fitting by a knot, tape, or special fitting so that tension is not transmitted to joints or terminal screws.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28281, June 4, 1996]
§ 111.60-17 Connections and terminations.
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(a) In general, connections and terminations to all conductors must retain the original electrical, mechanical, flame-retarding, and, where necessary, fire-resisting properties of the cable. All connecting devices must be suitable for copper stranded conductors.
(b) If twist-on type of connectors are used, the connections must be made within an enclosure and the insulated cap of the connector must be secured to prevent loosening due to vibration.
(c) Twist-on type of connectors may not be used for making joints in cables, facilitating a conductor splice, or extending the length of a circuit.
[CGD 94–108, 61 FR 28281, June 4, 1996]
§ 111.60-19 Cable splices.
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(a) A cable must not be spliced in a hazardous location, except in intrinsically safe systems.
(b) Each cable splice must be made in accordance with section 20.11 of IEEE Std 45.
[CGD 94–108, 61 FR 28281, June 4, 1996]
§ 111.60-21 Cable insulation tests.
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All electric power and lighting cable and associated equipment must be checked for proper insulation resistance to ground and between conductors. The insulation resistance must not be less than that in section 46.2.1 of IEEE Std 45.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28281, June 4, 1996]
§ 111.60-23 Metal-clad (Type MC) cable.
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(a) Metal-clad (Type MC) cable permitted on board a vessel must be continuous corrugated metal-clad cable.
(b) The cable must—
(1) Have a corrugated gas-tight, vapor-tight, and watertight sheath of aluminum or other suitable metal that is close-fitting around the conductors and fillers and that has an overall jacket of an impervious PVC or thermoset material; and
(2) Be certified or listed by an independent laboratory as meeting the requirements of UL 1569.
(c) The cable is not allowed in areas or applications exposed to high vibration, festooning, repeated flexing, excessive movement, or twisting, such as in engine rooms, on elevators, or in the area of drill floors, draw works, shakers, and mud pits.
(d) The cable must be installed in accordance with article 334 of the NEC. The ampacity values found in table A6 of IEEE Std 45 may not be used.
(e) The side wall pressure on the cable must not exceed 1,000 pounds per foot of radius.
(f) Equipment grounding conductors in the cable must be sized in accordance with article 250–95 of the NEC. System grounding conductors must be of a cross-sectional area not less than that of the normal current carrying conductors of the cable. The metal sheath must be grounded but must not be used as a required grounding conductor.
(g) On an offshore floating drilling and production facility, the cable may be used as interconnect cable between production modules and between fixed distribution panels within the production modules, except that interconnection between production and temporary drilling packages is prohibited. Also, the cable may be used within columns, provided that the columns are not subject to the conditions described in paragraph (c) of this section.
(h) When the cable is used within a hazardous (classified) location, terminations or fittings must be listed, and must be appropriate, for the particular Type MC cable used and for the environment in which they are installed.
[CGD 94–108, 62 FR 23908, May 1, 1997]
Subpart 111.70—Motor Circuits, Controllers, and Protection
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§ 111.70-1 General.
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(a) Each motor circuit, controller, and protection must meet the requirements of ABS Rules for Building and Classing Steel Vessels, sections 4/5A5.13, 4/5B2.13, 4/5B2.15, and 4/5C4; ABS Rules for Building and Classing Mobile Offshore Drilling Units, sections 4/3.87 through 4/3.94 and 4/3.115.6; or IEC 92–301, as appropriate, except the following circuits:
(1) Each steering gear motor circuit and protection must meet part 58, subpart 58.25, of this chapter.
(2) Each propulsion motor circuit and protection must meet subpart 111.35 of this part.
(b) In ungrounded three-phase alternating current systems, only two motor-running protective devices (overload coil or heater type relay within the motor and controller) need be used in any two ungrounded conductors, except when a wye-delta or a delta-wye transformer is used.
(c) The motor disconnecting means must be an externally operable switch or circuit breaker.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28281, June 4, 1996; 62 FR 23909, May 1, 1997]
§ 111.70-3 Motor controllers and motor control centers.
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(a) General. The enclosure for each motor controller or motor control center must meet NEMA No. ICS 2 and NEMA No. 2.3 1983 or meet Table 5 of IEC 92–201, as appropriate, for the location where it is installed. In addition, each enclosure in a hazardous location must meet subpart 111.105 of this part. NEMA No. 2.4 provides guidance on the differences between NEMA and IEC devices for motor service.
(b) Low-voltage release. Each motor controller for a fire pump, elevator, steering gear, or auxiliary that is vital to the vessel's propulsion system, except a motor controller for a vital propulsion auxiliary which can be restarted from a central control station, must have low-voltage release if automatic restart after a voltage failure or its resumption to operation is not hazardous. If automatic restart is hazardous, the motor controller must have low-voltage protection. Motor controllers for other motors must not have low-voltage release unless the starting current and the short-time sustained current of the additional low-voltage release load is within the capacity of one ship's service generator. Automatic sequential starting of low-voltage release controllers is acceptable to meet this paragraph.
(c) Low-voltage protection. Each motor controller must have low-voltage protection, except for the following motor controllers:
(1) A motor controller that has low-voltage release under paragraph (b) of this section.
(2) A motor controller for a motor of less than 2 horsepower (1.5 kW).
(d) Identification of controllers. (1) Each motor controller and motor control center must be marked externally with the following information:
(i) Manufacturer's name or identification.
(ii) Voltage.
(iii) Number of phases.
(iv) Current.
(v) kW (Horsepower).
(vi) Identification of motor being controlled.
(vii) Current rating of trip setting.
(2) Each controller must be provided with heat durable and permanent elementary wiring/schematic diagrams of the controller located on the door interior.
[CGD 94–108, 61 FR 28281, June 4, 1996; 61 FR 33045, June 26, 1996]
§ 111.70-5 Heater circuits.
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(a) If an enclosure for a motor, master switch, or other equipment has an electric heater inside the enclosure that is energized from a separate circuit, the heater circuit must be disconnected from its source of potential by a disconnect device independent of the enclosure containing the heater. The heater disconnecting device must be adjacent to the equipment disconnecting device. A fixed sign, warning the operator to open both devices, must be on the enclosure of the equipment disconnect device, except as in paragraph (b) of this section.
(b) If the location of the enclosure for a motor, master switch, or other equipment for deck machinery is remote from the motor and controller disconnect device, a sign must be fixed to the enclosure if the disconnect arrangement required by paragraph (a) of this section is not used. The sign must warn the operator of the presence of two sources of potential within the enclosure and show the location of the heater circuit disconnect device.
(c) Electric heaters installed within motor controllers and energized from a separate circuit must be disconnected in the same manner as required by paragraph (a) of this section or by §111.70–7(d).
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28282, June 4, 1996]
§ 111.70-7 Remote control, interlock, and indicator circuits.
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(a) Overcurrent protection. A conductor of a control, interlock, or indicator circuit of a motor controller must be protected against overcurrent unless:
(1) The conductor is wholly within the controller enclosure;
(2) The rating or setting of the branch circuit overcurrent device is not more than 300 percent of the current-carrying capacity of the control, interlock, or indicator circuit conductor;
(3) There is an overcurrent device in each side of the line that has a rating or setting of not more than 300 percent of the current-carrying capacity of the control, electrical interlock, or indicator circuit conductor, except if under operating conditions there is no appreciable difference in potential between the external conductors, overcurrent protection need only be at the supply of that side of the line; or
(4) The opening of the control, interlock, or indicator circuit creates a hazard.
Note: For overcurrent protection of steering gear control and indicator circuits, see Subpart 111.93 of this chapter.
(b) Accidental ground. The controller must be designed to prevent an accidental ground in a remote control circuit from causing the stop switches to fail to operate or causing the motor to start.
(c) Source of potential. The potential for a control, interlock, or indicator circuit must be derived from the load side of the motor and controller disconnect device, except if the control functions require circuits that must be common to two or more controllers, the switching arrangement in paragraph (d) of this section must be met.
(d) Switching. In the design of a control, interlock, or indicator circuit, all practicable steps must be taken to eliminate all but one source of power in an enclosure. If the control functions make it impracticable to energize a control interlock or indicator circuit from the load side of a motor and controller disconnect device and the voltage of the control, interlock, or indicator circuit is more than 24 volts, there must be one of the following alternative methods of switching:
(1) Each conductor of a control, interlock, or indicator circuit must be disconnected from all sources of potential by a disconnect device independent of the motor and controller disconnect device. The two independent devices must be adjacent to each other, and a fixed sign, warning the operator to open both devices to disconnect completely the motor and controller, must be on the exterior of the door of the main disconnect device.
(2) Each conductor of a control, interlock, or indicator circuit must be disconnected from all sources of power by a disconnect device actuated by the opening of the controller door, or the power must first be disconnected to allow opening of the door. The disconnect device and its connections, including each terminal block for terminating the vessel's wiring, must have no electrically uninsulated or unshielded surface. When this type of disconnect device is used for vital auxiliary circuits, a nameplate must be affixed to the vital auxiliary motor controller door that warns that opening the door will trip a vital auxiliary off-line.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28282, June 4, 1996; 62 FR 23909, May 1, 1997]
Subpart 111.75—Lighting Circuits and Protection
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§ 111.75-1 Lighting feeders.
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(a) Passenger vessels. On a passenger vessel with fire bulkheads forming main vertical and horizontal fire zones, the lighting distribution system, including low location egress lighting where installed, must be arranged so that, to the maximum extent possible, a fire in any main vertical and horizontal fire zone does not interfere with the lighting in any other fire zone. This requirement is met if main and emergency feeders passing through any zone are separated both vertically and horizontally as widely as practicable.
(b) Machinery spaces. Lighting for enginerooms, boilerrooms, and auxiliary machinery spaces must be supplied from two or more feeders. One of these feeders must be a ship's service feeder.
Note: Special requirements for emergency lighting, feeders, and branch circuits are in subpart 112.43 of this chapter.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28282, June 4, 1996; 61 FR 33045, June 26, 1996]
§ 111.75-5 Lighting branch circuits.
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(a) Loads. A lighting distribution panel must not supply branch circuits rated at over 30 amperes.
(b) Connected load. The connected load on a lighting branch circuit must not be more than 80 percent of the rating of the overcurrent protective device, computed on the basis of the fixture ratings and in accordance with IEEE Std 45, section 21.6.
(c) Lighting fixtures on lighting circuits. Each lighting fixture must be on a lighting branch circuit.
(d) Overcurrent protection. Each lighting branch circuit must be protected by an overcurrent device rated at 20 amperes or less, except as allowed under paragraph (e) of this section.
(e) 25 or 30 ampere lighting branch circuits. Lighting branch circuits rated at 25 and 30 amperes supplying only fixed nonswitched lighting fixtures for cargo hold or deck lighting having only lampholders of the mogul type, or other lampholding devices required for lamps of more than 300 watts, may be supplied by a 30 ampere branch circuit wired with at least No. 10 AWG (5.3 mm 2 ) conductors if each fixture wire used in wiring each lighting fixture is No. 12 AWG (3.3 mm 2 ) or larger.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28282, June 4, 1996; 62 FR 23909, May 1, 1997]
§ 111.75-15 Lighting requirements.
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(a) Lights in passageways, public spaces, and berthing compartments. The supply to lights in each passageway, public space, or berthing compartment accommodating more than 25 persons must be divided between two or more branch circuits, one of which may be an emergency branch circuit.
(b) Lights in machinery spaces. Alternate groups of lights in an engineroom, boilerroom, or auxiliary machinery space must be arranged so that the failure of one branch circuit does not leave an area without light.
(c) Illumination of passenger and crew spaces. (1) Each space used by passengers or crew must be fitted with lighting that provides for a safe habitable and working environment under normal conditions.
(2) Sufficient illumination must be provided by the emergency lighting source under emergency conditions to effect damage control procedures and to provide for safe egress from each space.
(d) Berth lights. Each crew berth must have a fixed berth light that is not wired with a flexible cord. The berth light must have minimum horizontal projection so that the light may not be covered with bedding.
(e) Exit lights. Each exit light required on passenger vessels under §112.15–1 of this subchapter must have the word “Exit” in red block letters at least 2 inches (50 mm) high.
(f) Pilot ladders. There must be a means for lighting each station from which a pilot may be deployed.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28282, June 4, 1996]
§ 111.75-16 Lighting of survival craft and rescue boats.
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(a) During preparation, launching, and recovery, each survival craft and rescue boat, its launching appliance, and the area of water into which it is to be launched or recovered must be adequately illuminated by lighting supplied from the emergency power source.
(b) The arrangement of circuits must be such that the lighting for adjacent launching stations for survival craft or rescue boats is supplied by different branch circuits.
[CGD 94–108, 61 FR 28282, June 4, 1996]
§ 111.75-17 Navigation lights.
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Each navigation light system must meet the following:
(a) Feeders. On vessels required to have a final emergency power source by §112.05–5(a) of this chapter, each navigation light panel must be supplied by a feeder from the emergency switchboard (see §112.43–13). The feeder must be protected by overcurrent devices rated or set at a value of at least twice that of the navigation light panel main fuses.
(b) Navigation light indicator panel. Each self-propelled vessel must have a navigation light indicator panel in the navigating bridge to control side, masthead, and stern lights. The panel must visually and audibly signal the failure of each of these navigation lights. Each light source must be connected to a separate fused branch circuit. The panel must have a fused feeder disconnect switch, and the fuses must have at least twice the rating of the largest branch circuit fuse and must be greater than the maximum panel load.
(c) Dual light sources. Each self-propelled vessel must have duplicate light sources for the side, masthead, and stern lights.
(d) Navigation lights. Each navigation light must meet the following:
(1) Meet the technical details of the applicable navigation rules.
(2) Be certified by an independent laboratory to the requirements of UL 1104 or an equivalent standard under §110.20-1 of this chapter. Portable battery powered lights need meet only the requirements of the standard applicable to those lights.
(3) Be labeled with a label stating the following:
(i) “MEETS _____.” (Insert the identification name or number of the standard under paragraph (d)(2) of this section to which the light was type-tested.)
(ii) “TESTED BY _____.” (Insert the name or registered certification mark of the independent laboratory that tested the fixture to the standard under paragraph (d)(2) of this section).
(iii) Manufacturer's name.
(iv) Model number.
(v) Visibility of the light in nautical miles.
(vi) Date on which the fixture was type-tested.
(vii) Identification of bulb used in the compliance test.
(4) If it is a flashing light, have its intensity determined by the formula:
Ie=G/(0.2+t2-t1)
Where
Ie=Luminous Intensity.
G=Integral of Idt evaluated between the limits of t1 and t2.
t1=Time in seconds of the beginning of the flash.
t2=Time in seconds of the end of the flash.
I=Instantaneous intensity during the flash.
Note: The limits, t1 and t2, are to be chosen so as to maximize Ie.
(e) Installation of navigation lights. Each navigation light must:
(1) Be installed so that its location and its angle of visibility meet the applicable navigation rules;
(2) Except as permitted by the applicable navigation rules, be arranged so that light from a navigation light is not obstructed by any part of; the vessel's structure or rigging;
(3) Be wired by a short length of heavy-duty, flexible cable to a watertight receptacle outlet next to the light or, for permanently mounted fixtures, by direct run of fixed cable; and
(4) If it is a double-lens, two-lamp type, have each lamp connected to its branch circuit conductors either by an individual flexible cable and watertight receptacle plug or, for permanently mounted fixtures, by an individual direct run of fixed cable.
[CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94–108, 61 FR 28282, June 4, 1996; 61 FR 33045, June 26, 1996; 62 FR 23909, May 1, 1997]
§ 111.75-18 Signaling lights.
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Each self-propelled vessel over 150 gross tons when engaged on an international voyage must have on board an efficient daylight signaling lamp that may not be solely dependent upon the vessel's main source of electrical power and that meets the following:
(a) The axial luminous intensity of the beam must be at least 60,000 candelas.
(b) The luminous intensity of the beam in every direction within an angle of 0.7 degrees from the axial must be at least 50 percent of the axial luminous intensity.
[CGD 94–108, 61 FR 28282, June 4, 1996]
§ 111.75-20 Lighting fixtures.
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(a) The construction of each lighting fixture for a non-hazardous location must meet—
(1) UL 595, until May 3, 1999;
(2) UL 1570, UL 1571, or UL 1572, as applicable, including marine supplement; or
(3) IEC 92–306.
(b) Each fixture globe, lens, or diffuser must have a high strength guard or be made of high strength material, except in an accommodation space, navigating bridge, gyro room, radio room, galley, or similar space where it is not subject to damage.
(c) No fixture may be used as a connection box for a circuit other than the branch circuit supplying the fixture. (continued)