Архитектура Аудит Военная наука Иностранные языки Медицина Металлургия Метрология
Образование Политология Производство Психология Стандартизация Технологии


Type A, Type B, Type C, Type D and Type E-Fire.



 

And we have three types of extinguishers: powder extinguisher, foam extinguisher and CO2-extinguisher. There is also the main fire pipeline filled with sea water under pressure.

 

Depending on the type of the fire, we use the certain type of extinguisher, or sea water, or dry sand.

 

· Type A-fire:

 

If cloth, wood, plastic, rubber or paint is on fire, it's Type A-fire.

 

To extinguish Type A-fire we may use all kinds of extinguishers: powder extinguisher, foam extinguisher, CO2-extinguisher, or dry sand.

But there is a danger of smouldering.

 

That's why it is preferrable to use sea water from the main fire pipeline. And we should have in considering that the supplying of sea water is unlimited.

 

But, if we have Type A-fire on a small area (for example, in the cabin) it is reasonable to use powder extinguisher.

 

· Type B-fire:

 

If inflammable liquids (oil, petrol, kerosene, etc.) are on fire, it's Type B-fire.

 

To extinguish Type B-fire we must use foam extinguisher. On a smaller area we may use powder extinguisher or dry sand.

 

· Type C-fire: Burning gases under pressure.

 

If we have burning gases under pressure, it's Type C-fire.

 

To extinguish Type C-fire we use powder extinguishing system which is operated from the navigating bridge or from the ER.

 

· Type D-fire: Burning metals.

 

If we have burning metals (aluminum, magnesium, etc.), it's Type D-fire.

 

The best way to put out Type D-fire is to throw burning materials overboard.

 

If there is no such kind of possibility, we may use sea water, powder extinguisher, or dry sand.

 

Using sea water from the main fire pipeline is preferrable, because in other cases there is a danger of smouldering.

 

· Type E-fire: Electrical fire.

 

When electrical equipment under voltage is on fire, it's Type E-fire.

 

IN CASE OF ELECTRICAL FIRE, THE FIRST ACTION IS TO CUT OFF THE ELECTRICITY.

 

To extinguish Type E-fire we may use CO2-extinguisher, or, if the voltage is not over 1000 Volts, powder extinguisher.

 

But if we use powder extinguisher, there is a danger of damaging the equipment.

We MUST NOT use sea water to put out the electrical fire under voltage because of the risk of electrical shock.

 

We MUST NOT use foam extinguisher to put out the electrical fire under voltage because of the risk of poisonous evaporating and electrical shock.

 

· All fire extinguishers are of red colour.

 

Moreover, we have C02 extinguishing system in the ER and in the boiler room, and sprinkler system in the cabins of the ship.

 

MARPOL

ü It’s an International Convention on Pollution Preventing from vessels.

ü MARPOL includes 6 annexes.

ü The main point is that it’s forbidden to discharge bilge waters into straits, gulfs, channels, port water areas and special areas. (It’s below 62 degrees in Antarctica area.)

ü  It’s forbidden to discharge bilge waters into the Black sea, Red sea, Baltic Sea and Mediterranean Sea.

ü No less than 60 miles from the shore it is allowed to discharge bilge waters.

ü It’s also forbidden to throw away plastic and all kinds of bottles, food waste products in a sanitary zone - it’s 12 miles to the shore.

ü When running to the territorial waters it’s necessary to turn off and seal valves because leakage is possible.

 

SOLAS

International Convention on the Safety of Life at Sea, 1974.

· states a number of minimum standards on safety construction of ships and basic equipment (fire-fighting, navigational, life-saving, radio-equipment, etc.) which must be available on board the ship.

 

· contains the order of activity in emergency situations and accidents.

 

· requires regular verification.

 

· states the necessary requirements of International Codes on life-saving equipment, ISM-code, and carrying dangerous and bulk cargoes.

 

· spreads over all merchant marine vessels of basic register tonnage of 500 and more tons, which are engaged in commercial carrying.

OS Duties

At Sea:

Under conditions of restricted visibility or congested waters, or as required by the Master, he will be responsible to the Officer on Watch for:

 

ü bridge lookout.

 

ü the steering of the ship as directed by the Officer on Watch or the Master.

 

ü general bridge duties.

 

ü any other duties assigned to him by the Officer on Watch or the Master.

--------------------------------------------------------------------------------------------------------

In Port:

Under certain circumstances as determined by the Chief Officer, he will be responsible to the Officer on Watch for:

 

ü assisting the Able Seaman on watch with his duties.

 

ü any other duties assigned to him by the Officer on Watch or Able Seaman.

----------------------------------------------------------------------------------------------

Other Duties:


Поделиться:



Последнее изменение этой страницы: 2019-03-22; Просмотров: 328; Нарушение авторского права страницы


lektsia.com 2007 - 2024 год. Все материалы представленные на сайте исключительно с целью ознакомления читателями и не преследуют коммерческих целей или нарушение авторских прав! (0.009 с.)
Главная | Случайная страница | Обратная связь