-
8/8/2019 Temporary Electrical
1/14
PRESENTATION ON
SAFETY IN TEMPORARY
ELECTRICAL
INSTALLATIONS
-
8/8/2019 Temporary Electrical
2/14
A FAMOUS SAY ON ELECTRICITY
ELECTRICITY IS A GOOD SERVANT
BUTIT IS A BAD MASTER .
-
8/8/2019 Temporary Electrical
3/14
What is Elec tr ici ty?
T h e Flow of elec tr ons f rom one at om to
ano th e r at om is c a lled elec tr ici ty.
What is cu rr en t?
R at e of flow of elec tr ici ty is c a lled cu rr en t.
-
8/8/2019 Temporary Electrical
4/14
TYPES OF CURRENTS
AC -- ALTERNATING CURRENT.DC -- DIRECT CURRENT.
-
8/8/2019 Temporary Electrical
5/14
-
8/8/2019 Temporary Electrical
6/14
ELECTRICAL PROTECTIVE
DEVICES1 . Fuses2. Relays
a) Earth fault relayb) Over current relayc) Under / Over voltage
relayd) Bucholtz relay.
3. Circuit Breakers4. Lightning Arrestors5. Earthings
-
8/8/2019 Temporary Electrical
7/14
Need for temporary Electrical
InstallationUsed for rescue operationsUsed for salvaging
activities
Used in accident spotsUsed for testing purposeUsed in
construction sites
Normally not used for production activityUsed for short
duration
-
8/8/2019 Temporary Electrical
8/14
Types of Temporary Electrical
Installations
1 . Indoor
2 . Out-door
-
8/8/2019 Temporary Electrical
9/14
Safety Precautions to be taken
At Indoor sitesUse only quality materials, equipments and
accessories.Engage only qualified techniciansEnsure the parameters
are not exceeded.
Maintain constant supervisionMaintain the area neat, clean and
well ventilated and noobstructions.Keep sufficient No. Fire
Extinguishers ( DCP, CO2 ) toextinguish electrical fire.Erect the
electrical equipments properlyEnsure there is no toxic/ explosive
gases are present atthe work spot.
-
8/8/2019 Temporary Electrical
10/14
Display caution boards.
Obtain necessary work permits.Ensure proper earthing is
done.Carry out meggar test before energizing any
electrical equipment.Restrict unauthorised entry.Use PPEs as
requiredProvide adequate lightingRemove the temporary facilities
once the job iscompleted and close the work permits.
-
8/8/2019 Temporary Electrical
11/14
Safety Precautions to be taken At out-door sitesIn addition to
all the above precautionsensure the following additional
precautionsare taken.Provide waterproof shelter for the
electricalappliances.Keep sufficient No. Fire Extinguishers (
DCP,CO2 ) to extinguish electrical fire.Cordon off the area to
restrict unauthorised
entry of the public.protect the wires, cables from
mechanicaldamage and from changing weather conditions
-
8/8/2019 Temporary Electrical
12/14
At out-door sites
Ensure the equipments, wiring do notsubmerge in to water Use
PPEs as requiredObtain necessary work permits and alsostatutory
approvals if required.Use Safety belts when working on
heights.Ensure the First-Aid box is available.Take the help of
police, local administration onneed basisRemove the temporary
facilities once the job iscompleted and close the work permits.
-
8/8/2019 Temporary Electrical
13/14
Last but not the leastAccidents do not happen. They
areCaused
Let us not make electricity our MASTER
Let us make it our SERVANT
-
8/8/2019 Temporary Electrical
14/14
