[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: 46CFR111.95-7]



[Page 242]

 

                            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 111.95_Electric Power-Operated Boat Winches

 

Sec.  111.95-7  Wiring of boat winch components.



    (a) If the motor controller of a boat winch power unit is next to 

the winch, the main line emergency switch must disconnect all parts of 

the boat winch power unit, including the motor controller and limit 

switches, from all sources of potential. Other power circuit switches 

must be connected in series with the main line emergency switch and must 

be ahead of the motor controller. The main line emergency switch must be 

the motor and controller disconnect required by Subpart 111.70 and must 

have a horsepower rating of at least that of the winch motor.

    (b) If the motor controller of a boat winch power unit is remote 

from the winch, there must be a switch at the controller that can 

disconnect the entire winch electric installation from all sources of 

potential. The switch must be in series with and on the supply side of 

the main line emergency switch.

    (c) Each davit arm limit switch, whether connected in the power 

circuit or in the control circuit, must disconnect all ungrounded 

conductors of the circuit controlled.

    (d) If one motor is used with two winches, there must be a main line 

emergency switch, a clutch interlock switch, and a master switch for 

each winch, except that a single main line emergency switch located as 

required by paragraph (e) of this section may be used for both winches. 

The main line emergency switches must be connected, in series, ahead of 

the motor controller. The master switches must be connected in parallel 

and each, in series, with the corresponding clutch interlock switch for 

that winch. Each clutch interlock switch must open the circuit to its 

master switch, except when the power unit is clutched to the associated 

winch. There must be a means to prevent the power unit from being 

clutched to both winches simultaneously.

    (e) The main line emergency disconnect switch must be adjacent to 

the master switch, within reach of the winch operator, accessible to the 

person in charge of the boat stowage, and for gravity davit 

installations, in a position from which the movement of boat davit arms 

can be observed as they approach the final stowed position.



[CGD 74-125A, 47 FR 15236, Apr. 8, 1982, as amended by CGD 94-108, 61 FR 

28283, June 4, 1996]