0
What is the basis of using 550 Volts for equipment in underground coal mines?
Wiki User
∙ 11y ago
what is the basis of Your
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What type of electrical installation is covered by BS 7671?
Systems for distribution of electricity (supplier's Transformers, substations, etc.) Equipment of motor vehicles (except caravans, mobile units) Equipment on board ships Equipment on board aircraft Equipment of fixed and offshore installations (oil rigs, etc.) Mines and quarries Lightening protection systems Radio interference supression equipment Electrical equipment of machines
What happens in the winding house of a mine ?
The winding house houses the engine that raises and lowers the mine's cage (lift).
What does MSHA stand for on welding cable?
MSHA is the Federal Mine Safety and Health Administration. A main office is in Triadelphia, West Virginia - near Pittsburg. They govern safe practice in, and safe products for use in USA mines A telephone number is: 304 547 0400
Where is the electric fence timer at the diamond mines on Nabooti island?
It is inside the mine at the far right. You will need a hardhat to enter the mine, and you can only get one by beating the Safari. Click on the knob-like thing with an arrow on it. This will turn off the power but only for a few seconds. You will have to run left, up the ore pile, across the conveyor belt to the right, then down to the hole in the fence.
How do you get past the electric fence on nabooti island?
In the Diamond mines, you will need a hard hat to reach the timer that temporarily turns off the power to the electric fence. (You get the hard hat by completing the Safari.) There is a hole in the fence at the far upper right, across the conveyor belt. Enter the mine and press the button that turns the timer fully in one direction. Before the power comes back on, you have to reach the hole in the fence. Run left, up the ore pile, jump onto the conveyor belt, then go right and through the gap to reach the barrel by the fence.
What are the attrition rates for underground mines?
In 1998 there were about 860 underground coal mines in operation. By 2001 that number had declined to 719 underground mines.
Where are coal mines located?
Coal mines are located underground
How many underground mines did PA have in 2001?
Pennsylvania (73 underground mines, 58.1 million short tons).
How many underground mines are there in Australia?
There are too many underground mines to list. Australia is very rich in mining resources.
How did they mine salt in the past?
In underground mines, as today in many mines.
Did every mine have a shaft?
No. Many mines are surface mines- not underground.
What is SIC 1222?
includes establishments primarily engaged in producing bituminous coal in underground mines or in developing bituminous coal underground mines.
What state has the most underground mines?
West Virginia leads the nation in underground coal mining with 193 underground mines that produced 99.6 million metric short tons in 2001.
Where in Britain can you find underground salt?
You can find it in the underground salt mines in England
How many underground mines are there in the U.S.?
In 2001 there were 719 underground coal mines in the United States, which produced 380.6 million metric short tons.
What are some dangers in mining coal?
Dangers can include fire/explosion, cave-ins of underground mines, flooding, inhaled rock and coal dust, noise from mining equipment, electric injuries (most underground equipment is electrically driven, and having a chunk of the rock ceiling fall on you. Being struck by equipment is a hazard, and when working narrow seam coal, developing "Miner's knee" for working on your knees- not enough room to stand up. I inspect coal mines, and these are some of the areas I look for.
What is found in Nubia?
Underground Gold Mines TEEHEE
