§ 111.60-5 Portable electric cord and fixture wire-(a) General. The construction of portable electric cords and fixture wire shall be in accordance with Underwriters' Laboratories, Inc., Standard for Flexible Cord and Fixture Wire.

(b) Application, portable cords. Portable cords may be used only for the connection of portable lamps or appliances and for the connection of stationary lamps or small stationary equipment not suitable for fixed wiring. When used they shall be of the type indicated in Table 111.60-5 (b). Types of portable cords other than those listed in Table 111.60-5 (b) and the uses for the types listed other than those uses permitted by this paragraph shall be subject to special

investigation and shall not be employed before being approved.

(1) Damp or wet locations or for hard service. Portable cords for use in damp or wet locations or for hard service shall be type S, SO, ST, SJ, SJO, SJT, HS, HSJ, AFS, or AFSJ, and portable cords for use where exposed to oil or oil vapor shall be type SO or SJO.

(2) Dry locations. Portable cords for use in dry locations and not for hard services shall be type C, P, P-2, PD, PW, PW-2, K, HC, HPD, AVPD, or one of the types listed for damp or wet locations in subparagraph (1) of this paragraph.

(3) Extra hard service. Portable cords for use in damp or wet locations and requiring a length in excess of five feet shall be type S, SO, or ST.

1 The temperature limit for Type SJ, SJO, or SJT cord is 75° C instead of 60° C if both the conductor insulation and jacket employ compounds which are recognized as suitable for use at 75° C. Such cords are recognized specifically for use on electric refrigerators or in similar applications on appliances where cord replacement is not a problem. Such cords shall be marked by having a green thread (which indicates a temperature limit or 75° C) either immediately under the insulation or under the separator of one conductor.

The temperature limit indicated applies only to the individual conductors where
the cord is employed within an appliance. The temperature limit on the jacket of
Type HS rubber-jacketed heater cord and Type AFS or AFSJ rubber-jacketed
heat-resistant cord is limited to 75° C. The temperature limit on the jacket of
Type HSJ rubber-jacketed heater cord is limited to 60° C. unless the jacket is
marked by means of indent printing or indelible-ink printing at intervals of two
feet or less with the value 75° O.

Rubber-filled or varnished-cambric tapes may be substituted for the inner braids.

(c) Allowable current-carrying capac

(d) Conductor size. Portable cord or fixture wire shall not be smaller than No. 18 AWG.

(e) Splices. Portable cords shall be used only in continuous lengths without splices or taps.

(f) Pull at joints and terminals. Portable cords shall be so connected to devices and to fittings that tension will not be transmitted to joints or terminal screws. This shall be accomplished by a knot in the cord, winding with tape, by a special fitting designed for that purpose, or by other equivalent means.

(g) Fixture wire, application. Fixture wire may be used in the interior of lighting fixtures, instruments, and the like. When used, fixture wire shall be one of the types covered in this paragraph.

(1) Either type AF, SF-2, or SFF-2 fixture wire shall be used for applications where the temperature will exceed 90° C and for the wiring of all mogul-base screw-shell lampholders.

(2) Either type AF, SF-2, or SFF-2 fixture wire shall be used for wiring lighting fixtures provided with other than mogul-base screw-shell lampholders, except that type CF fixture wire may be

used where the temperature does not exceed 90° C, types RFH-2 and FFH-2 fixture wire may be used where the temperature does not exceed 75° C, and types TF, TFF, RF-2, and FF-2 fixture wire may be used where the temperature does not exceed 60° C.

(h) Fixture wire, voltage limitation. Fixture wire shall not be used for applications exceeding 300 volts.

(1) Fixture wire, stranded. Fixture wire shall be of the stranded type.

CODIFICATION: § 111.60-5 was revised by CGFR 56-39, 21 F. R. 9026, Nov. 21, 1956, and subsequently amended in the following respects:

1. In Table 111.60-5 (b), Footnote 2 was amended by CGFR 58-10, 23 F. R. 4680, June 26, 1958.

§ 111.60-10 Wire and cable installation.

(b) Ships' service cables-(1) Cable joints and sealing. The cable ends of all feeders and power branch circuits to vital auxiliaries are to be effectively sealed against the admission of moisture by methods such as taping in combination with insulating compound or, in the

case of type MI, by fittings designed for that purpose.

[Subparagraph (1) amended, CGFR 59-21, 24 F.R. 7193, Sept. 5, 1959]

(2) Cable supports and radii of bends. Where cables are run in groups they shall be supported in metal hangers arranged as far as practicable to permit painting of the surrounding structure without undue disturbance to the installation. Single cable runs may be supported by metal clips screwed directly to deck or bulkhead except on watertight bulkheads. Cables grouped in a single hanger shall be limited to two banks. Supports shall be spaced no more than 18 inches apart where vertical and 14 inches where horizontal. Cables shall be strapped in position at every hanger on vertical runs and at not less than every fourth hanger on horizontal runs, except that at turns of horizontal runs the cable shall be strapped at each hanger. Cables running transversely to and supported by clips or straps on the under side of beams shall be run on backing plates, cable racks, or the equivalent. Metal supports shall be designed to secure cable without damage to insulation or armor and shall be so arranged that the cables will bear over a length of at least 2 inch. Leaded and armored cables shall not be bent to a smaller radius than 8 cable diameters; other cables may be bent to a 6-cable-diameter radius. [Subparagraph (2) amended by CGFR 56-39, 21 F. R. 9027, Nov. 21, 1956]

Prior Amendments

1953: 18 F. R. 879, Feb. 13.

(3) Alternating-current cable installations. In order to avoid over-heating by induction, all phase wires should be contained within the same armor by use of multiple conductor cables. Singleconductor cables may be used, however, where carrying negligible currents or where there are no closed magnetic circuits around the individual cables. [Subparagraph (3) amended by CGFR 53–3, 18 F. R. 880, Feb. 13, 1953]

(5) Grounding of cable metallic covering. Each metallic-sheathed cable and each armored cable are to have the metallic covering electrically and mechanically continuous and grounded to the metal hull at each end of the run, except that final subcircuits may be grounded at the supply end only.

[Subparagraph (5) amended, CGFR 59-21, 24 F.R. 7193, Sept. 5, 1959]

Prior Amendments

1956: 21 F.R. 9028, Nov. 21.

(6) Mechanical protection. All cables in bunkers and where particularly liable to damage such as locations in way of cargo ports, hatches, tank tops, and where passing through decks, shall be protected by removable metal coverings, angle irons, pipe or other equivalent means. All such metallic coverings are to be electrically continuous and grounded to the metal hull. Horizontal pipes or the equivalent used for cable protection should be provided with drainage carried holes, and, where they are through decks or bulkheads, arrangements should be made to insure the integrity of the water-or-gas-tightness of the structure.

[Subparagraph (6) amended, CGFR 56-39, 21 F.R. 9028, Nov. 21, 1956]

(8) Feeder cables. Feeders of every description shall be located with a view to avoiding, as far as practicable, spaces. where excessive heat and gases may be encountered as well as spaces where they may be exposed to damage such as exposed sides of deck houses. Electrical conductors shall not enter oil tanks nor shall they pass through cofferdams immediately adjacent to and extending below the top of the oil tanks except that branch circuits may be installed in accordance with § 111.60-40.

[Subparagraph (8) amended by CGFR 53-3, 18 F. R. 880, Feb. 13, 1953]

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(10) Cables behind sheathing. Cables: may be installed behind sheathing but they must not be installed behind nor imbedded in structural insulation; they should pass through such insulation at right angles and should be protected by continuous pipe with a stuffing tube at one end. For deck penetrations this stuffing tube should be at the upper end of the pipe and for bulkhead penetrations it should be on the uninsulated side of the bulkhead. For refrigerated space insulation the pipe should be of a phenolic or similar heat insulating material joined to the bulkhead stuffing tube or a section of such material should be inserted between the bulkhead stuffing tube and the metallic pipe.

[Subparagraph (10) amended by CGFR 5639, 21 F.R. 9028, Nov. 21, 1956]