Rules of exploitation of electric devices презентация

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Rules of Exploitation of Electric Devices.

State autonomous educational institution
of secondary vocational education
“Kirishi politechnic college"

combinations on the theme of Electricity.
to speak about the safety rules of exploitation of electric devices.
to understand the importance of following these rules.

is off, the power is on
safety earthing system
wire
equipment
device
electric shock

of electrical fires happen every year.

Electrical fires are caused by different things:
Faulty wiring causes electrical fires
Frayed wires often ignite other objects
Sometimes people place combustibles too close to electrical appliances

combustibles-легковоспламеняющиеся вещества

a) as protection from an electric shock
b) as connection with ground.
2. Voltage appears on a) dead parts.
b) live parts.
3. Contact with live conductors is a) dangerous.
b) safe.
4. Connection to ground is made a) by means of wire conductors.
b) by means of earthing electrodes
5. Danger of an electric shock a) is earthed.
disappears if the frame b) is unearthed.

proper safety equipment can save your life.
Always protect your head, eyes, hands and feet. Never work without wearing the following items:
A hard hat
A pair of leather gloves
Steel toe boots
Safety glasses

gloves – пара кожаных перчаток
Steel toe boots-ботинки со стальным носком
Safety glasses- защитные очки

combustibles
3. faulty
4. evaluate
5. ignite
A not working properly
B wiring secured to a wall
C to set fire to something
D objects that can quickly catch on fire
E to decide on an object’s usefulness

of electric shock (appears, disappears) when the conductor becomes (live, dead).
2. Current passes through faulty (earthed, unearthed) part of installations when the power is on.
3. Low accuracy of measurement is (an advantage, a disadvantage) of the measuring device.
4. The danger of electric shock (increases, decreases) in the wet and hot atmosphere.
5. No current flows through a (dead, live) conductor.

conductor

Check your answers(Ex.3)

reduce electrical safety hazards always
-de-energize power sources before working with electrical equipment
-follow lockout\tagout procedures
Remember: all electricity, including static electricity, can be dangerous. Never take risks.

Electrical safety

all wires. Make sure they are not frayed or damaged
2.Use means of protection against electric shock.
3.Control safety system of earthing.
4. Hang out prohibitive marks.

8 mistakes – “2”

Estimate yourselves

questions) and ex.2, page 32 (mark the statements as T or F), ex. 3, page 32 (match the words (1-5) with the definitions (A-E)