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57981

Federal Register / Vol. 86, No. 199 / Tuesday, October 19, 2021 / Proposed Rules b Low voltage electronics must be designed with due consideration for static discharge, electromagnetic interference, voltage transients, fungal growth, and contact corrosion.
62.351

Amended
2 On vessels propelled by steam turbines, the navigation bridge primary control system must include safety alarms for high and low boiler water levels and low steam pressure.

346. In 62.351a, remove the text Table 62.3550 and add, in its place, the text table 62.3550.
347. Amend 62.355 as follows:
a. Designate the note immediately following paragraph a as note 1 to paragraph a;
b. Revise paragraph c2;
c. Remove the last sentence of paragraph c3; and d. In paragraph d:
i. Remove the text 492/5.11 of the ABS Steel and add, in its place, the text 492/13.11 of the ABS Marine;
and ii. Remove the text 46 CFR and add, in its place, the symbol .
The revision reads as follow:

62.3510

62.355
systems.

62.3535 Starting systems for internalcombustion engines.

Remote propulsion-control

c

Amended
348. In 62.3510b, remove the text to the extent required for the associated equipment by 56.5050 and 56.5095 of this chapter.

62.3515

Amended
349. Amend 62.3515 as follows:
a. In paragraph a2, remove the words low pressure and add, in their place, the text low-pressure; and b. Reserve paragraph b.

62.3520

Amended
350. In 62.3520, remove the note immediately following paragraph d1.
351. Revise 62.3535 to read as follows:

The starting systems for propulsion engines and for prime movers of ships

service generators required to start automatically must meet sections 46
5/9.5 and 482/11.11 of the ABS
Marine Vessel Rules incorporated by reference; see 62.051.
62.3540

Amended
352. Amend 62.3540 as follows:
a. In paragraph b2, remove the text CG521 and add, in its place, the text CGENG and b. In paragraph c:
i. Remove the word Steel and add, in its place, the word Marine; and ii. Remove the text 46 CFR and add, in its place, the symbol .
353. Revise 62.3550 to read as follows:

62.3550 Tabulated monitoring and safety control requirements for specific systems.

The minimum instrumentation, alarms, and safety controls required for specific types of systems are listed in table 62.3550. The provisions in this section pertain to table 62.3550.

TABLE 62.3550MINIMUM SYSTEM MONITORING AND SAFETY CONTROL REQUIREMENTS FOR SPECIFIC SYSTEMS
Note 1
Service
Instrumentation
Alarm
Safety control
Main Propulsion boiler

1
Burner seating
Trial for ignition

1
Status

1
Failure
Failure

Burner auto trip
do
Manual trip

a.
b.
b.
b.

Low fire interlock
Program control interlock
2

Status.
Status.
2

2

Manual trip

c, d.

1
Auto safety trip override.
Starting power
Location in control
Shaft speed/direction/pitch Clutch fluid
4
Stern tube oil tank level
Line shaft bearing

1

Pressure voltage
Status
3
Pressure
4
Temperature
Forced lubrication Pressure Pressure
Temperature

1
Failure
Activated
Low
Override
3
Low.
4
Low.
High.
Low.
High, Low
High

Manual trip
do.

c, d.

Limit
3.

a.
c.

4

f.

Main Propulsion steam turbine.
Main propulsion, diesel
Main propulsion, remote control.

Main propulsion, electric
Main propulsion, shafting

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See also paragraph
System
Main propulsion, controllable pitch propeller.

Hydraulic oil

Generators

Ship service

5
Starting pressure/voltage

Emergency
Turbogenerator

6
5

5.
Low.
Tripped.
6
5

Diesel

5

5

7
Jacking/turning gear
8
Remote/auto fill level

Run
7
Engaged
8

Trip
7
8.
High

Hi. press. leakage level
Pump remote control
Pump auto control
Level

Run.
Run
Open/closed.

High.

Auxiliary boiler
Gas turbine
Engines and turbines
Fuel oil

Bilge
Machinery space Class 3
power-operated watertight doors.

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6.
5.
Manual trip.
5
Manual trip.
7
Auto trip or overflow arrangement.

Excessive operations.
High/location.

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d.
k.
d.
g.