Page 33 - Turner 1st sem Practicals

Job sequence

TASK 1 : Practice and follow the preventive safety rules to avoid electrical accident

• Do not work on live circuits, if unavoidable use rubber • Open the main switch and make the circuit dead.
gloves or rubber mats etc.
• Do not stretch your hands on any moving part of rotating
• Do not touch bare conductors. machine and around moving shafts.
• Stand on a wooden stool or an insulated ladder while • Use always earth connection for all electrical appliances
repairing live electrical circuits/ appliances or replacing along with 3-pin sockets and plugs.
fused bulbs.
• Do not connect earthing to the water pipe lines.
• Stand on rubber mats while working/ operating switch
panels, centred gears etc. • Do not use water on electrical equipments.
• Use safety belts always, while working on poles or high • Discharge static voltage in HV lines/ equipment and
rise points. capacitors before working on them.
• Keep the workshop floor clean and tools in good
• Use wooden or PVC insulated handle screw drivers
when working on electrical circuits. condition.
• Replace or remove fuses only after swiching off the
circuit switches.

TASK 2 : Perform the immediate steps to be taken to save the shocked victim

Assume, you are alone in place where one Avoid direct contact with the victim wrap your
person is getting electric shock; you have to hands in dry material if rubber gloves are not
follow the steps given below. available. If you remain un-insulated do not

• Proceed the treatment at once without panic emotion. touch the victim with your bare hands.
• Break the contact either by switching 'off' the power (or) • Keep the patient warm and at mental rest.
removing the plug (or) wrenching the cable free.
Ensure of good air circulation and comfort, call
• Remove the victim from contact with the live conductor for help to shift the patient to safer place. If the
by using dry non-conducting materials such as wooden victim is aloft, action to be taken to prevent him
bar. (Figs 1 & 2) from falling.
• If victim is in unconscious stage then loosen the
clothing about the neck, chest and waist and place the
victim in a relaxed position.
• Keep the victim warm and comfortable (Fig 3).

Do not give anything by mouth to the
unconscious victim.
• Send a person to call doctor.
In case of electric burns

If the victim gets the electrical burns due to
shock, burns are very painful and dangerous. If
a large area of the body is burnt give no
treatment, but do the first aid as given below.

Producltion & Manufacturing : Turner - Exercise 1.1.07 21