PURPOSE
Electricity is a versatile energy and failure to take precautions against electrical hazard may result in injury or property damage. This section gives the guideline for electrical hazard for identification of specific causes of accident resulted from electricity. Control of electrical hazards is neither difficult nor very expensive but ignoring them may have to serious accidents.
SCOPE
This section covers the minimum requirement of precautions in case of electrical hazard and shall be implemented at the site.
• GENERAL
STRENGTH AND CAPABILITY OF ELECTRICAL EQUIPMENT’S
No electrical equipment shall be put into use where its strength and capability is not meeting the operational requirement thereby causing danger. The electrical equipment must be properly selected and adequately rated before being put into use.
• INSULATION PROTECTION AND PLACEMENT OF CONDUCTORS
All conductors shall be suitably covered with insulating material and protected to prevent danger including being suitably placed.
EARTHING
Precautions shall be taken either by earthing or other suitable means to prevent danger arising when any conductor gets charged.
Earthing and bonding conductor must be of the adequate cross-sectional area for safe carriage of any expected fault current for the line that it takes the fuse to operate and disconnect the supply.
• INSTALLATION OF FUSE/CIRCUIT BREAKER
Efficient means suitably located shall be provided for protecting excess of current to prevent danger.
• CUTTING OF SUPPLY AND ISOLATION OF ELECTRICAL EQUIPMENT:
Suitable means shall be provided for cutting off the supply of electrical energy to any electrical equipment and isolation of any electrical equipment. This would consist of isolation from all points of supply and fuses for each point of isolation.
WORK ON OR NEAR LIVE CONDUCTOR
No person shall carry out work on or near to any live conductor unless it is made dead and suitable precautions are taken to prevent danger.
LOCKOUT AND TAGGING OF ELECTRICALLY POWERED EQUIPMENT AND ASSOCIATED CIRCUITS:
Equipment or circuits that are Denergized shall be rendered inoperative and have tags attached to all points, where such equipment or circuits can be energized /electrical permit shall always be used. Electric equipment and lines shall be considered energized unless tested by appropriate methods.
All switches shall be plainly tagged indication “ Men are at work”.
Barriers shall be erected as necessary to adjacent energized lines.
Training shall be provided to employees for a procedure involving emergence situation and first aid fundamentals, including resuscitation.
Each cord set, plug shall be inspected for the external defect, and for indication of possible internal damage. Damaged or defective equipment shall not be used till repair.
TEMPORARY LIGHTING
Temporary lights shall be equipped with heavy-duty electric cords and insulation maintained in safe condition.
Flexible cord shall be used only in continuous length.
Extension cords shall be protected against accident of damage as may be caused by traffic, sharp corners or projections and pinching indoor or elsewhere.
All electrical cables must conform with applicable rules and regulation.
All electrical cables shall be sufficiently covered against damage and shall be suspended at least 2 meters in height.
All electrical cables, boxes, power tools and other equipment shall be checked regularly by a qualified person.
All electrical power tools must be of a double insulated type.
When working in the confined area, electrical power supply shall not exceed 24 volts AC.
DO’S AND DON’TS
DO’S
An only qualified person should undertake electrical repairs.
Treat all circuits as live unless ensured after testing to be dead.
Ensure that extension cord is free from cuts, damaged insulation, kinks or joints etc.,
Check that the pins of the sockets are not loose.
Ensure easy access to put off the supply.
Use switches which clearly indicate ‘on’ or ‘off’ and are of appropriate amperage.
Frequently check the values of electrical parameters like voltage and amperage and ensure that they are appropriate.
Get the equipment circuit breakers etc. checked periodically by a competent person.
While using any portable electrical equipment ensure that it is properly earthed &, there is no leakage of current through the body of the equipment, and cable is reinforced where it enters the plug with rubber tubing and there is no strain on wires.
Use work permit in areas of a flammable atmosphere.
In case of short circuit or fire put off the main switches immediately.
Know first aid procedure.
In case of injury due to electric shock give the victim artificial respiration & immediately call for a doctor.
Use dry sand, CO2 or DCP Fire extinguisher in case of Fire.
DON’TS
Don’t have any unsafe temporary connections naked joints/wiring.
Don’t obstruct electrical main/switches.
Don’t just operate any switch unless you know the consequences.
Do not work wet on electrical equipment.
Don’t use trial and error methods with electrical circuits.
Fuses are saviors, don’t tamper with them. Don’t replace a ‘blown’ fuse unless the fault is detected and rectified.
Don’t overload an electric point.
Don’t use water for extinguishing an electrical fire. Use dry sand, CO2 or DCP extinguishers.
Don’t crowd things near electrical mains/switches.
In case of lighting don’t stand beside or rest against the tall structure.
Don’t take shortcuts, follow safe procedure.
Don’t crow around injured person. He needs fresh air.
Electricity is a versatile energy and failure to take precautions against electrical hazard may result in injury or property damage. This section gives the guideline for electrical hazard for identification of specific causes of accident resulted from electricity. Control of electrical hazards is neither difficult nor very expensive but ignoring them may have to serious accidents.
SCOPE
This section covers the minimum requirement of precautions in case of electrical hazard and shall be implemented at the site.
• GENERAL
STRENGTH AND CAPABILITY OF ELECTRICAL EQUIPMENT’S
No electrical equipment shall be put into use where its strength and capability is not meeting the operational requirement thereby causing danger. The electrical equipment must be properly selected and adequately rated before being put into use.
• INSULATION PROTECTION AND PLACEMENT OF CONDUCTORS
All conductors shall be suitably covered with insulating material and protected to prevent danger including being suitably placed.
EARTHING
Precautions shall be taken either by earthing or other suitable means to prevent danger arising when any conductor gets charged.
Earthing and bonding conductor must be of the adequate cross-sectional area for safe carriage of any expected fault current for the line that it takes the fuse to operate and disconnect the supply.
• INSTALLATION OF FUSE/CIRCUIT BREAKER
Efficient means suitably located shall be provided for protecting excess of current to prevent danger.• CUTTING OF SUPPLY AND ISOLATION OF ELECTRICAL EQUIPMENT:
Suitable means shall be provided for cutting off the supply of electrical energy to any electrical equipment and isolation of any electrical equipment. This would consist of isolation from all points of supply and fuses for each point of isolation.
WORK ON OR NEAR LIVE CONDUCTOR
No person shall carry out work on or near to any live conductor unless it is made dead and suitable precautions are taken to prevent danger.
LOCKOUT AND TAGGING OF ELECTRICALLY POWERED EQUIPMENT AND ASSOCIATED CIRCUITS:
Equipment or circuits that are Denergized shall be rendered inoperative and have tags attached to all points, where such equipment or circuits can be energized /electrical permit shall always be used. Electric equipment and lines shall be considered energized unless tested by appropriate methods.
All switches shall be plainly tagged indication “ Men are at work”.
Barriers shall be erected as necessary to adjacent energized lines.
Training shall be provided to employees for a procedure involving emergence situation and first aid fundamentals, including resuscitation.
Each cord set, plug shall be inspected for the external defect, and for indication of possible internal damage. Damaged or defective equipment shall not be used till repair.
TEMPORARY LIGHTING
Temporary lights shall be equipped with heavy-duty electric cords and insulation maintained in safe condition.
Flexible cord shall be used only in continuous length.
Extension cords shall be protected against accident of damage as may be caused by traffic, sharp corners or projections and pinching indoor or elsewhere.
All electrical cables must conform with applicable rules and regulation.
All electrical cables shall be sufficiently covered against damage and shall be suspended at least 2 meters in height.
All electrical cables, boxes, power tools and other equipment shall be checked regularly by a qualified person.
All electrical power tools must be of a double insulated type.
When working in the confined area, electrical power supply shall not exceed 24 volts AC.
DO’S AND DON’TS
DO’S
An only qualified person should undertake electrical repairs.
Treat all circuits as live unless ensured after testing to be dead.
Ensure that extension cord is free from cuts, damaged insulation, kinks or joints etc.,
Check that the pins of the sockets are not loose.
Ensure easy access to put off the supply.
Use switches which clearly indicate ‘on’ or ‘off’ and are of appropriate amperage.
Frequently check the values of electrical parameters like voltage and amperage and ensure that they are appropriate.
Get the equipment circuit breakers etc. checked periodically by a competent person.
While using any portable electrical equipment ensure that it is properly earthed &, there is no leakage of current through the body of the equipment, and cable is reinforced where it enters the plug with rubber tubing and there is no strain on wires.
Use work permit in areas of a flammable atmosphere.
In case of short circuit or fire put off the main switches immediately.
Know first aid procedure.
In case of injury due to electric shock give the victim artificial respiration & immediately call for a doctor.
Use dry sand, CO2 or DCP Fire extinguisher in case of Fire.
DON’TS
Don’t have any unsafe temporary connections naked joints/wiring.
Don’t obstruct electrical main/switches.
Don’t just operate any switch unless you know the consequences.
Do not work wet on electrical equipment.
Don’t use trial and error methods with electrical circuits.
Fuses are saviors, don’t tamper with them. Don’t replace a ‘blown’ fuse unless the fault is detected and rectified.
Don’t overload an electric point.
Don’t use water for extinguishing an electrical fire. Use dry sand, CO2 or DCP extinguishers.
Don’t crowd things near electrical mains/switches.
In case of lighting don’t stand beside or rest against the tall structure.
Don’t take shortcuts, follow safe procedure.
Don’t crow around injured person. He needs fresh air.
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