How do airports make sure that sparks Cannot ignite fuel when aircraft are being Refuelled?
Bonding ensures electrical continuity between the aircraft and the refuelling vehicle, preventing any spark to appear when the ground operator connects the refuelling hose to the aircraft coupling.
What safety measures are used when aircraft refuel?
Personnel engaged in refuelling shall not carry lighters or other means of ignition, and shall not wear footwear with exposed iron or steel studs. Ground power units must be positioned at least 6 metres from the aircraft fuel coupling and venting points, hydrant valves and other refuelling equipment.
How do you think metal cables reduce the dangers when refueling an aircraft?
What does a bonding cable do? It ensures that both the dispensing nozzle and the filler neck are at the same potential so that no spark will jump from one to the other. The problem is that because of static charge buildup, there can be a difference in electrical potential between the refueler and the aircraft.
How can you minimize the dangers when Refuelling an aircraft?
A build-up of static charge is a potential danger when refuelling aircraft or vehicles. Fuel running through the pipes can provide the friction needed to create a static charge. To prevent this, aircraft are earthed with a conductor during re-fuelling.
Why is a build up of charge dangerous?
Static electricity can build up in clouds. It is dangerous when you touch something with a large electric charge on it. The charge will flow through your body causing an electric shock. This could cause burns or even stop your heart.
What causes too much electricity in the body?
Some objects such as wool, glass, human skin and hair are more likely to accumulate electric charges and have static electricity. Shuffling your feet across carpet, particularly in socks, is another way your body gains more electrons; they are released when you touch something such as a doorknob or another person.
Can static electricity affect the heart?
During the daily life, if we touch a place with tones of static electricity, it can also pump our heart in a way, and it is much different than the electricity that safe people, because in our normal life, our heart pump in a common speed, when it is pump by the static electricity, it will shocked our heart and may …
What does getting shocked do to your heart?
A shock can cause cardiac arrest If a current from outside the body passes through the heart, it can mask these impulses and disturb the heart’s rhythm. This irregular heartbeat is called arrhythmia and can even manifest as a total disorganization of the rhythm, known as ventricular fibrillation.
Can electricity damage your brain?
The initial jolt of electricity to the body can affect the central nervous system, motor neurons, and other nerves, as well as their control centers in the brain. These areas are damaged, often leading to a permanent impairment after high voltage exposure.
Why do humans get electrocuted on power lines?
Our bodies turn out to be excellent conductors of electricity, and the electrical current will happily use them to complete a closed path to flow from high potential (the wire) to low potential (the ground). ZAP! So how do workers repair live electrical wires without getting hurt?