common hazards and their control measures at construction ... · 02-04-2016 · hit by earth moving...

COMMON HAZARDS AND THEIR CONTROL MEASURES AT CONSTRUCTION SITES

National Safety Council , Hqs.

98‐A,Institutional Area, Sector 15,

CBD Belapur , Maharashtra

NaviMumbai – 400615.

India www.nsc.org.in

Contact no : 022‐ 27579924 /25

COMMON HAZARDS AND THEIR CONTROL MEASURES

IN CONSTRUCTION INDUSTRY

HAZARDS CONTROL MEASURES TRIPS/SLIPS TRIPS / SLIPS

Trip

Slip

i. Maintain good house

keeping ii. Removal of unwanted

material from time to time iii. No temporary electrical

connections above ground (2 mtr.) or underground

iv. Floor non-slippery v. Avoid overloading of

machinery/circuit vi. Have clear access vii. Follow instruction strictly viii. Use proper P.P.E.

FALL FROM HEIGHT FALL FROM HEIGHT

National Safety Council,India


Use of i Scaffold ii Safety belt/Safety harness iii Safety net iv Fall arrester v Working platform with railing/fencing vi Working place at height (above 3 mtr.) with no open side vii Roofing bracket for steep roof- avoid sliding viii Crawling board for working on steep roof ix Ladder and step ladder x Catch platform not used for storage of material or as working platform

FALL OF MATERIAL FROM HEIGHT FALL OF MATERIAL FROM HEIGHT

i. Use of Safety Net ii. Proper slinging iii. Proper manual handling iv. Proper mechanical handlingv. Proper stacking

- do not overload the floor/platform

- do not stack in a manner or height likely to cause a fall

- stack above 1.5 meter to be provided with access

- stack be barricaded - suitable ppe for dust

laden material stacked

ELECTRICAL SHOCK ELECTRICAL SHOCK


Electrical shock

- current 1 mA -shock without muscular pain

- 8mA to 50mA- several muscular. Contra & breathing problem

- 50mA to 80mA or more-Ventricular Fibrillation.-death due to Asphyxiation.

1. Use of three pin plug with three wire core

2. Portable electric tools and inspection lamps’

- double insulation with voltage (24v) isolation transformer

- earthed with RCCB/ELCB of 30mA sensitivity current

- use non conducting footwear

- no use of tool in wet or damped location

- use within design limit - authorized

electrician/operator for repair/maintenance

3. No exposed live wire at excavation, or tunnel work

4. Permanent electric panel

HIT BY SPEEDING VEHICLE HIT BY SPEEDING VEHICLE

A person died because of a car hitting to road divider.

i. Observe speed limit ii. Authorized entry of vehicle iii. Observing traffic rules and

signs and signals iv. Adequate quality

illumination for approaching vehicle

v. Proper signs and signal at required points

vi. Follow the statutory obligation as per Motor Vehicle Act 1988

HIT BY EARTH MOVING EQUIPMENT HIT BY EARTH MOVING

EQUIPMENT

i. Equipment on vehicle with proper condition of parking brake, service brake, warning light and horn while reversing

ii. Trained and licensed driver iii. Barricading / flagging the

area where such operation is going on

iv. Observing speed limit 20 km/hrs on road and 5 km/hrs near the operational area

v. Vehicle with adequate illumination during night

vi. Adequate precaution as isolation of electric supply or erecting overhead barrier of a safe height is taken when earth moving equipment or vehicle is in dangerous proximity to any live electric conductor

vii. Earth moving equipment not to be left on a slope with the engine running

viii. Safe gangways be provided for to and fro movement of construction workers engaged on loading and unloading of vehicle

ix. No unauthorized person rides the transport equipment

x. The driver of such equipment should operate under the direction of a signaler

xi. The driver should be adequately trained and should possess required skill

FIRE FIRE



i. Activating fixed fire extinguishers installed

ii. Activating smoke and heat venting system

iii. Activating fire exit or escape routes

iv. Activating devices for restricting smoke and fire propagation

v. De-energizing technical system

vi. Alarming persons who are in danger

vii. Calling fire fighting forces and rescue team

viii. Use flame proof tools/equipment

ix. Controlling heating and ventilation system

x. Activating the evacuation system

ACCIDENTAL ACTUATION OF TOOLS ACCIDENTAL ACTUATION OF TOOLS

Nail gun accidentally actuated and nail went thru middle finger.

i. Tools with proper working

switch ii. Tools in proper working

condition iii. Training operator iv. Prevent accidental

disconnection of pneumatic tools

v. Proper accessories for electrical power tools

vi. Electrical tools with proper earthing and double insulation

vii. Proper place/pocket for keeping and carrying of tool


DISCONNECTION OF PNEUMATIC TOOLS DISCONNECTION OF PNEMATIC TOOLS

Unacceptable

Acceptable

i. Tools with proper working

switch ii. Tools in proper working

condition iii. Training operator iv. Prevent accidental

disconnection of pneumatic tools

v. Proper accessories for electrical power tools

vi. Electrical tools with proper earthing and double insulation

vii. Proper place/pocket for keeping and carrying of tool

DUST AND FUMES DUST AND FUMES

Dust

Fumes

i. Ventilation ii. Use of Dust Mask iii. Use proper measures for

mitigating dust/fumes


HANDLING OF SOLVENTS, PAINTS, THINNERS ETC

HANDLING OF SOLVENTS, PAINTS, THINNERS ETC

i. Proper Storage ii. Use of gloves / barrier

cream / mask iii. No smoking iv. Maintaining hygiene v. Using special cart for

transportation of above

EXPLOSIVES EXPLOSIVES

i. Authorized and proper storage

ii. Authorized blaster iii. Display proper

communication, danger signals before blast

iv. Follow instructions strictly v. Apply lock/key vi. Prohibit smoking and naked

light vii. Keep a safe distance and

non-sparking tool while using explosives

viii. Stop use of explosives if weather condition not suitable

HEAT/RADIATION HEAT/RADIATION


i. Isolation, face shield,

welding goggles, gloves ii. Aprons, apparel iii. Control at source

WRONG POSTURE OF WORK WRONG POSTURE OF WORK

i. Right method of material

handling ii. Correct position and

posture of work iii. Firm floor/base of footing

EXCESSIVE NOISE NOISE CONTROL MEASURES

1.Ensuring compliance with relevant statutory requirements. 2.Provide acoustic barriers or enclosure around the source of noise 3. Provide PPE i.e. ear plugs or ear muffs 4. Control the noise at source by changing design etc


UNGUARDED MACHINERY UNGUARDED MACHINERY Implementation of

The Building &Other Construction Workers (R&E and C of S) Central Rules, 1998: Rule-37 (Fencing of motors,etc.)

Maintain the machinery in safe condition with all the guards in their position

Keep record of all machinery with guards

Replace the damaged or broken guards and keep a record.

Depute a responsible person for upkeep of such records

UNSTABLE SCAFFOLD UNSTABLE SCAFFOLD

stability in scaffold

• Scaffold posts and frames to be erected and maintained vertically and plumbed vertically. Plumbness to be checked using a spirit level.

• Scaffold to be supported at the base with ties, guys or outrigger frames in case the height is four times the base.

• Ties be connected to buildings or structures by connecting a tie tube to at least two post.

• Scaffold posts and frames to be locked together with pin bolted or pinned spigot to be able to withstand tensile load


MANUAL MATERIAL HANDLING

MANUAL MATERIAL HANDLING

Manual material handling to be done with six basic kinetics of manual lifting.- Keep feet parted, Keep back straight, Knees bend, Grasp the object by the opposite ends, Tuck your chin in, Lift the weight using feet Decide safe method of handling for every object separately avoiding sharp edges, pinch points, striking against the object handled etc.

MECHANICAL MATERIAL HANDLING MECHANICAL MATERIAL HANDLING

1.Ensuring compliance with the provision of Chapter VII BOCW Central Rules 1998. 2.Testing and Periodical examination of lifting appliances and lifting gear. 3. Training of Operators , Signaller. 4. Adopt Safe Slinging Practices.

common hazards and their control measures at construction ... · 02-04-2016 · hit by earth moving...

Documents