JHA on Cable Laying and Termination
1.
Engineer - in - Charge
: (Site specific)
2.
Manpower required for the job
: (Site specific)
3.
Tools and tackles required
: Tools for excavation, Cable lifting jacks, knife
for cable peeling.
4.
PPE required
: Safety belt, Safety helmet.
5.
Authorization Required
: Excavation permit.
Sl.
No.
1.
2.
Sequence of the
job
Excavation for
Cable laying
Loading and
Unloading of
cable drums on
truck.
Potential Hazards
Protective measures to be taken
a) Shock from buried
Cables.
1) The area to be excavated shall
be carefully seen for possible
Cables laid already.
2) Excavation permit shall be
taken.
3) While excavating near the
Cables, the Cables shall be deenergized.
4) Area around the Cable shall be
excavated with utmost care.
b) Fall in excavated pits.
Barricading shall be done to avoid
fall into the excavated trenches.
1) Periodic examination of the
slings.
2) Use slings of correct capacity.
3) Keep persons at a distance
while the material is being
lifted/lowered.
a) Failure of slings.
b) Failure of the Cranes.
1) Ensure periodic load testing of
cranes.
2) Ensure use cranes of correct
capacity.
3) Carry out periodic maintenance
of Cranes.
c) Fall of drums from the
Truck.
1) Properly fasten the drums.
2) Block the movement of drums
using wooden
stoppers/sleepers.
Sl.
No.
3.
Sequence of the
job
Potential Hazards
Protective measures to be taken
Transportation of
Cable drums.
a) Fall of Cable drums.
1) Speed limit of 20 km/hr shall
not be exceeded.
2) Lock the movement of cable
drums by fastening and with
wooden stoppers/slippers.
b) Over turning of the
vehicle.
4.
Unrolling of
Cables.
a) Slippage from cable
drum from jacks.
5.
Cable termination
a) Cut from knife while
peeling the cable.
1) Use vehicle of adequate
capacity.
2) Avoid over loading.
3) Negotiate curves at reduced
speed.
1) Properly balance the Cable
drums over the jack.
2) Check the ground below the
jacks to be sufficiently firm to
take the load
3) Avoid pulling of the Cable for
unrolling instead rotate the
Cable drum for unrolling.
Care shall be taken while the
Cable sheath is peeled off.
b) Cut from the cable
armor while handling.
Canvas/leather hand gloves shall
be used.
c) Injury due to cable fall.
Use Safety shoes.
d) Shock while termination
1) Before termination of the
Cable, ensure that the power
supply is cut off.
2) Ensure that job permit is
taken.
a) Shock hazard due to test
voltage
1) Ensure that the persons are
away from the Cable terminals
while Meggering.
2) Ensure that the Cable terminals
at the farther end and are safe
and isolated from human
approach/caution boards are
put.
3) Discharge of Earth Cable
before work.
b) Shock hazard due to
1) Ensure that the Cable ends are
6.
Taking IR
value/HV test
Sl.
No.
Sequence of the
job
Potential Hazards
Protective measures to be taken
wrong identification of
cable.
properly identified before start
of work.
2) Check the presence of Voltage
by line tester/test lamp for L.T.
3) Test for the presence of
voltage by remote voltage
indicator for HT.