[Code of Federal Regulations]

[Title 46, Volume 4]

[Revised as of October 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 46CFR111.60-7]



[Page 233]

 

                            TITLE 46_SHIPPING



                  (This book contains parts 90 to 139)

 

   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)

 

PART 111_ELECTRIC SYSTEMS_GENERAL REQUIREMENTS--Table of Contents

 

               Subpart 111.60_Wiring Materials and Methods

 

Sec.  111.60-7  Demand loads.



    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]