[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: 46CFR111.30-29]



[Page 225-226]

 

                            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 111.30_Switchboards

 

Sec.  111.30-29  Emergency switchboards.



    (a) Each emergency generator must have an emergency switchboard.

    (b) There must be a test switch at the emergency switchboard to 

simulate a failure of the normal power source and cause the emergency 

loads to be supplied from the emergency power source.

    (c) The emergency switchboard must be as near as practicable to the 

emergency power source but not in the same



[[Page 226]]



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 Sec.  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 Sec.  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]