The article discusses need of Ballast Water Management . It tells about different methods of Ballast explains the shipboard procedure,record keeping and responsible officer in Ballast Water Exchange. It answers the latest questions on the same topic in the MEO Class I .
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Wiktionary ( / 0 votes)Rate this definition: ballast (Noun) Heavy material that is placed in the hold of a ship (or in the gondola of a balloon),... ballast (Noun) Anything that steadies emotion or the mind. ballast (Noun) Coarse gravel or similar material laid to form a bed for roads or ...
Definition(s) Clean Ballast Clean ballast means ballast water carried in a tank which, since it was last used to carry a cargo containing a substance in Category X, Y or Z, has been thoroughly cleaned and the residues resulting there from have been discharged and the tank emptied in accordance with the appropriate requirements of this Annex.
ballast 1. Coarse stone, gravel, slag, etc., used as an underlayer for poured concrete. 2. A device used to provide the requiting voltage and operating current for fluorescent,... 3. Class P: A ballast for a fluorescent lamp which meets the requirements... 4 . Same as constantwattage ...
A major component to powering metal halide, high pressure soium fluorescent lamps is the Ballast. High Intensity Discharge lamps carry a large amount of electrical discharge to create light. The job of the Ballast in this case is to drive and sustain the power output toward the lamps.
Synonyms for ballast at with free online thesaurus, antonyms, and definitions. Find descriptive alternatives for ballast.
ballast / ˈbæləst / n any dense heavy material, such as lead or iron pigs, used to stabilize a vessel, esp one that is not carrying cargo crushed rock, broken stone, etc, used for the foundation of a road or railway .
According to the definition of a ballast for HID lamps, the lamp current (I) vs. lamp voltage (V) and the lamp power (P) vs. lamp voltage V(ballast curve) diagrams are illustrated in All values should be interpreted as effective lamp voltage(arc discharge voltage!) at .
The etymology of the word "ballast," meaning "useless load" in Middle Dutch, reflects the fact that since time immemorial ship owners have endeavored to avoid using ballast. This chapter, which provides information on the role of ballast in ship operations, is a necessary prerequisite to the committee's assessment of proposed strategies for ...
What Does A HID Ballast Do? 11th October 2016 By Emma Samardzija. Tweet. In order to keep your Xenon HID lights working properly, you'll need a HID ballast. The ballast is an important part of your HID light setup and is essential if you want your Xenon HIDs to work properly. In this post we'll cover what a HID ballast is, what it does, and why ...
The discharge of ballast water is subject to any conditions of the port State. In any case, the ship is required to do its best to correct malfunction of the Ballast Water Management system as soon as possible and submit its repair plan to the port State control authorities and the flag State.
Nov 27, 2005· If and once the pump is contaminated you can again use the gas ballast valve to assist in purging some of these contaminants from the vacuum pump oil in which it now resides. Close the pump inlet port off to full vacuum and allow pump to run/actuate with gas ballast valve in open position. This again will help purge the pump.
Ballast is defined as any solid or liquid that is brought on board a vessel to increase the draft, change the trim, regulate the stability or to maintain stress loads within acceptable limits. Prior to the 1880s, ships used solid ballast materials such as rocks and sand, which had to be manually ...
Coarse aggregate or "ballast" is a primary component. This is added to cement that binds the aggregate particles together. Water and any additional additives are .
Ballast. The ~[⇑] was in the form of canvas bag of 5060 pound s of gravel that the large and active crew moved each time the boat tacked. The hulls of the boat were 20 to 30 feet long, the base of their sail could measures more twice the length of the hull,carrying up to 1600 square feet of sail.
Jun 04, 2015· What is Ballast? The granular material broken stones, shingles, gravels, etc., placed below and around the sleepers, to transmit wheel load from sleepers to formation and also to provide proper drainage, is called ballast.
Meaning of ballast and a memory aid (called Mnemonic) to retain that meaning for long time in our memory.
Oct 12, 2019· ballast m (plural ballasts) Heavy material that is placed in the hold of a ship (or in the gondola of a balloon), to provide stability. Coarse gravel or similar material laid to form a bed for roads or railroads. Further reading "ballast" in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).