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Файл:English for marine electro-technical officers. Supplementary book. Учебное пособие
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91
6.11. Navigation lights indicators
Essentially, the surveyor will expect to prove that the
navigation light indicator operates correctly and gives the appropriate alarms. A broken wire or lamp can be simulated by
pulling the appropriate fuse.
The power supply for the navigation lights must be duplicated (usually the alternative supply is obtained from the
emergency switchboard) and the changeover facilities must be
checked.
Although the actual light fittings for navigation are part
of the Safety Equipment Survey, the electrical survey will naturally include a check on the supply cables to the lights.
6.12. UMS operation
If your ship is classified for Unattended Machinery
Space (UMS) operation, the electrical survey will be extended
to include all the alarms, fire detection, controls and fail-safe
features of such an installation.
All alarms associated with the main engine, auxiliary
machines, lubrication and cooling are to be tested for correct
operation. Testing of the electrical circuits from the various
sensors is relatively straightforward. This can be achieved by
operating the sensor switch by hand or by simulating the switch
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action under the expected alarm condition. To prove that the
overall sensor (pressure stat, flow switch, level switch, temperature switch, etc.) is functioning correctly is obviously more
involved. Often, specialist contractors may be called upon to
service and calibrate the sensors and alarm annunciators.
Particular attention will be paid to the main engine and
auxiliary generators in respect of their alarms for lubrication
and cooling. Initiation and action of automatic shut-down features will be tested. Essential drives for lubrication, cooling
and fuel supply are duplicated and arranged so that one pump
can be selected on a duty / standby basis. Loss of pressure at
the duty pump should automatically start up the standby unit.
Automatic start-up of the emergency generator must be
demonstrated. The initiation of the undervoltage or underfrequency relay can usually be accomplished by pulling the
fuses in the detection unit. The emergency generator should
then run up to speed and supply voltage to the emergency
switchboard.
UMS requirements demand that a standby main generator starts automatically on loss of the duty generator. The
standby generator is to start and close onto the dead bus-bars
within 45 seconds.
This is followed by automatic sequential re-starting of
essential auxiliaries for lubrication, cooling, fuel and steering.
The correct functioning of the system will be tested. The dupli-
93
cate bilge level alarms together with automatic bilge pumping
must be proven to the surveyor's satisfaction.
The main and standby electric power supplies to the
overall alarm monitoring system must be inspected and tested.
The standby power arrangement usually includes battery backup. It will be necessary to inspect the general condition of the
battery and its trickle-charger.
Tests are made on the UMS alarm system to verify:
- that alarms displayed on the main console in the engine control room are relayed to the smaller group alarm panel
on the bridge;
- that the duty engineer call system is operating in the
accommodation areas, i.e. in the cabin of the selected duty engineer and in the duty mess and lounges;
- that the selected duty engineer is allowed 2–3 minutes
to respond to a machinery alarm. If the engineer has not
reached the control room and accepted the alarm within this
time, a dead man alarm should be sounded generally in the alleyway adjacent to the engineers' accommodation.
A complete inspection and test of the fire detection ap-
paratus must be performed.
All smoke, heat and flame sensors must function correctly to initiate the appropriate audible and visual alarms on
the bridge, in the main control room and in the accommodation.
94
Hand operated fire-alarm switches of the break-glass
type must also be examined and tested to be in proper working
order.
Main engine controls must function correctly and will
be tested from the bridge position, local position (engine control room) and at the emergency position alongside the engine.
The operational features of the electrical equipment for
main engine control and indication will be best demonstrated
during a full engine test during an engine survey. Such electrical equipment and connections associated with engine control
will be examined as usual for wear and tear, insulation level,
cleanliness, loose connections and overheating.
Main engine controls must function correctly and will
be tested from the bridge position, local position (engine control room) and at the emergency position alongside the engine.
The operational features of the electrical equipment for
main engine control and indication will be best demonstrated
during a full engine test during an engine survey. Such electrical equipment and connections associated with engine control
will be examined as usual for wear and tear, insulation level,
cleanliness, loose connections and overheating.
95
Answer the questions:
1. Must the power supply for the navigation lights be
duplicated?
2. What does the electrical survey include if your ship is
classified for Unattended Machinery Space (UMS)?
3. Why is particular attention paid to the main engine
and auxiliary generators in respect of their alarms for lubrication and cooling?
4. What do UMS requirements demand?
5. What are the tests on UMS alarm system?
6. What is the electrical equipment for main engine control and indication examined for?
96
ЛИТЕРАТУРА
Основная
1. Dennis, T. Hall. Practical Marine Electrical Knowledge /
T. Hall Dennis. — Second edition. — London, 1999.
2. Лугинский, Я. Н. Англо-русский словарь по элек-
тротехнике и электро-энергетике / Я. Н. Лугинский. —
Москва : Руссо, 2003.
3. Кущ, Т. Ю. Английский язык для судовых элек-
тромехаников / Т. Ю. Кущ, М. С. Воловник. — Москва :
Мортехинформреклама, 1986.
4. Кущ, Т. Ю. Основы английского языка для судо-
вых электриков / Т. Ю. Кущ, М. С. Воловник. — Одесса :
Негоциант, 1998.
5. Труханова, Н. Л. Английский язык судовой электроэнергетики для моряков / Н. Л. Труханова, Н. А. Кравченко. — Одесса : Латстар, 2000.
6. Опарин А. В. Использование энергии. Применение электричества на судах / А. В. Опарин, Л. И. Присяжнюк. — Одесса : Феникс, 2008.
Дополнительная
1. Белая, Ю. Anglomar Study English : учебное пособие для моряков / Ю. Белая. — Москва : Informar-Tech, 2002.
97
2. Богомолов, О. С. Английский язык для машинной
команды транспортных судов / О. С. Богомолов. — Одесса : Одесская национальная морская академия, 2005.
3. Фаворов П. А. Англо-русский морской технический словарь / П. А. Фаворов. — Москва : Воениздат, 1977.
4. Англо-русский морской словарь сокращений. —
Москва : Воениздат, 1983.
5. van Kluijven, P.C. The International Maritime Language Programme. An English Course for students at Maritime
Colleges and for On-board Training SMCP included / P.C. van
Kluijven. — The Netherlands : Alk&Heijnen Publishers, Alkmaar, 2005.
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