What is a transmission pipeline?
Pipelines safely transport natural gas or oil over long distances. There are many types, but Energy East is a “transmission pipeline.” Used to transport crude oil, transmission pipelines are about 508 to 1,219 millimetres in diameter. There are more than 96,000 kilometres of transmission pipelines in Canada and about 480,000 kilometres in the United States. Our wholly-owned natural gas pipelines travel more than 57,000 kilometres alone — a length that can wrap around the world 1.5 times!
What are pipelines made of?
Pipelines are made of long, flat sheets of high-strength steel that are shaped into tubes and welded together. The sections converted from existing gas pipeline are 1,067 millimetres in diameter and the new pipeline sections of Energy East will be 1,067 millimetres in diameter.
What measures are taken to ensure pipelines are built safely?
Pipelines such as Energy East conform to the highest design standards. Only top-quality steel and welding techniques are used. Extra precautions are taken at road, railway and river crossings or near denser population areas. X-rays or ultrasonic processes are used to check welds during construction, and pipes are pressure-tested afterwards to identify any defects. Coatings are used to protect against corrosion. TransCanada has earned a reputation for delivering energy safely and efficiently, and Energy East will be one of the most technologically-advanced and rigorously designed pipelines ever built.
What are pump stations?
Pipelines such as Energy East use a series of pump stations that essentially “push” the oil along the pipeline. These pumps turn on and off automatically, reacting to fluctuations in the oil flow. Pump stations are monitored using sophisticated control systems that continuously monitor line pressure, valves, temperatures, flows and other data.
What measures are taken to operate pipelines safely?
Pipelines such as Energy East are monitored 24 hours a day, 365 days a year, and equipped with shut-off valves that can be automatically closed if the pressure drops inside the pipeline. Highly-trained personnel perform regular inspections of the pipe and surrounding area using low-flying helicopters, planes and all-terrain vehicles. Safety specialists and emergency response teams are always on call.
Read more about safety.