46 C.F.R. Subpart 111.60—Wiring Materials and Methods
Title 46 - Shipping
(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] 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] (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] Each cable conductor must be #18 AWG (0.82 mm2 ) or larger except— (a) Each power and lighting cable conductor must be #14 AWG (2.10 mm2 ) or larger; and (b) Each thermocouple, pyrometer, or instrumentation cable conductor must be #22 AWG (0.33 mm2 ) or larger. [CGD 94–108, 61 FR 28280, June 4, 1996] (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] 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] 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. [CGD 74–125A, 47 FR 15236, Apr. 8, 1982, as amended by USCG–2004–18884, 69 FR 58348, Sept. 30, 2004] (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. (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] (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 mm2 ) 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 mm2 ) 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] (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] (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] 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] (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]
Title 46: Shipping
PART 111—ELECTRIC SYSTEMS—GENERAL REQUIREMENTS
Subpart 111.60—Wiring Materials and Methods
§ 111.60-1 Cable construction and testing.
§ 111.60-2 Specialty cable for communication and RF applications.
§ 111.60-3 Cable application.
§ 111.60-4 Minimum cable conductor size.
§ 111.60-5 Cable installation.
§ 111.60-6 Fiber optic cable.
§ 111.60-7 Demand loads.
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.------------------------------------------------------------------------
§ 111.60-9 Segregation of vital circuits.
§ 111.60-11 Wire.
§ 111.60-13 Flexible electric cord and cables.
§ 111.60-17 Connections and terminations.
§ 111.60-19 Cable splices.
§ 111.60-21 Cable insulation tests.
§ 111.60-23 Metal-clad (Type MC) cable.
