Safety at PESCO

Lineman Appreciation Day (Swat Circle)

Unsung heros of Pakistan

Lineman Appreciation Day (A tribute to Linemen)

PESCO Safety Appeal

Safety Trainings

We take safety at work very seriously. Safety seminars and safety workshops are conducted regularly at Sub-divisions making sure that the workers observe all safety precautions.

At PESCO, safety of its employees is top priority in the business plan. We treat Safety as a core business value. PESCO is striving upon to become a regional and national leader in Safety and for this to happen all management must ensure that this is part of their business plans. PESCO is now headed towards its vision of Compliance which is creating an accident free atmosphere in the company.

Safety Guide for General Public

Electric Safety at Home

Never use bare / damaged wires
Never use bare / damaged wires

Why is it so important to work safely with or near electricity?

The voltage of the electricity and the available electrical current has enough power to cause death by electrocution. Even changing a light bulb without unplugging the lamp can be hazardous because coming in contact with the live part of the socket could kill a person.

What do I need to know about electricity?

Always wear gloves and use well-insulated instruments
Always wear gloves and use well-insulated instruments

All electrical systems have the potential to cause harm. Electricity can be either "static" or "dynamic." Dynamic electricity is the uniform motion of electrons through a conductor (this is also called Electric Current). Conductors are materials that allow the movement of electricity through it. Most metals are conductors. The human body is also a conductor.

Static electricity is accumulation of charge on surfaces as a result of contact and friction with another surface. This contact/friction causes an accumulation of electrons on one surface, and a deficiency of electrons on the other surface.

Electric current cannot exist without a path to and from the conductor. Electricity will form a "path" or "loop". When you plug in a device (e.g., a power tool), the electricity takes the easiest path from the plug-in, to the tool, and back to the power source. This is also known as creating or completing an electrical circuit.

What kinds of injuries result from electrical currents?

People are injured when they become part of the electrical circuit. Humans are more conductive than the earth (the ground we stand on) which means if there is no other easy path, electricity will try to flow through our bodies.

There are four main types of injuries: electrocution (fatal), electric shock, burns, and falls. These injuries can happen in various ways:

  • Direct contact with exposed energized conductors or circuit parts. When electrical current travels through our bodies, it can interfere with the normal electrical signals between the brain and our muscles (e.g., heart may stop beating properly, breathing may stop, or muscles may spasm).
  • When the electricity jumps from a conductor / power lines through a gas (such as air) to a person who is grounded (that would provide an alternative route to the ground for the electrical current).
  • Thermal burns including burns from heat generated by electricity and flame burns from materials that catch on fire from heating or ignition by electrical currents or an electric arc flash. Contact burns from being shocked can burn internal tissues while leaving only very small injuries on the outside of the skin.
  • Thermal burns from the heat radiated from an electric arc flash. Ultraviolet (UV) and infrared (IR) light emitted from the arc flash can also cause damage to the eyes.
  • An arc blast can include a potential pressure wave released from an arc flash. This wave can cause physical injuries, collapse your lungs, or create noise that can damage hearing.
  • Muscle contractions, or a startle reaction, can cause a person to fall from a ladder, scaffold or aerial bucket. The fall can cause serious injuries.

What should I do if I think I am too close to overhead power lines?

Do not work close to power lines. Check with PESCO when working, driving, parking, or storing materials closer than 15 m (49 feet) to overhead power lines.

If you must be close to power lines, you must first call PESCO and we will assist you.

If your vehicle comes into contact with a power line:

  • DO NOT get out of your vehicle.
  • Call 1122 and PESCO customer service for help.
  • Wait for the PESCO staff come and they will tell you when it is safe to get out of your vehicle.
  • Never try to rescue another person if you are not trained to do so.
  • If you must leave the vehicle (e.g., your vehicle catches on fire), exit by jumping as far as possible - at least 45 to 60 cm (1.5 to 2 feet). Never touch the vehicle or equipment and the ground at the same time. Keep your feet, legs, and arms close to your body.
  • Keep your feet together (touching), and move away by shuffling your feet. Never let your feet separate or you may be shocked or electrocuted.
  • Shuffle at least 10 metres away from your vehicle before you take a normal step.
  • Do not enter an electrical power substation, or other marked areas.

What are some general safety tips for working with or near electricity?

Inspect portable cord-and-plug connected equipment, extension cords, power bars, and electrical fittings for damage or wear before each use. Repair or replace damaged equipment immediately.

Always tape extension cords to walls or floors when necessary. Nails and staples can damage extension cords causing fire and shock hazards.

Use extension cords or equipment that is rated for the level of amperage or wattage that you are using.

Be aware that unusually warm or hot outlets may be a sign that unsafe wiring conditions exists. Unplug any cords or extension cords to these outlets and do not use until a qualified electrician has checked the wiring.

Always use ladders made with non-conductive side rails (e.g., fibreglass) when working with or near electricity or power lines.

Place halogen lights away from combustible materials such as cloths or curtains. Halogen lamps can become very hot and may be a fire hazard.

Risk of electric shock is greater in areas that are wet or damp. Install Ground Fault Circuit Interrupters (also known as Circuit-breakers) as they will interrupt the electrical circuit before a current sufficient to cause death or serious injury occurs.

Use a portable in-line Circuit-breaker if you are not certain that the receptacle you are plugging your extension cord into is Circuit-breaker protected.

Make sure that exposed receptacle boxes are made of non-conductive materials.

Know where the panel and circuit breakers are located in case of an emergency.

Label all circuit breakers and fuse boxes clearly. Each switch should be positively identified as to which outlet or appliance it is for.

Do not use outlets or cords that have exposed wiring.

Do not use portable cord-and-plug connected power tools with the guards removed.

Do not block access to panels and circuit breakers or fuse boxes.

Do not touch a person or electrical apparatus in the event of an electrical accident. Always disconnect the power source first.

What are some tips for working with power tools?

Switch all tools OFF before connecting them to a power supply.

Disconnect and lockout the power supply before completing any maintenance work tasks or making adjustments.

Ensure tools are properly grounded or double-insulated. The grounded equipment must have an approved 3-wire cord with a 3-prong plug. This plug should be plugged in a properly grounded 3-pole outlet.

Test all tools for effective grounding with a continuity tester or a Circuit-breaker before use.

Do not bypass the on/off switch and operate the tools by connecting and disconnecting the power cord.

Do not use electrical equipment in wet conditions or damp locations unless the equipment is connected to a Circuit-breaker.

Do not clean tools with flammable or toxic solvents.

Do not operate tools in an area containing explosive vapours or gases, unless they are intrinsically safe and only if you follow the manufacturer's guidelines.

What are some tips for working with power cords?

Keep power cords clear of tools during use.

Suspend extension cords temporarily during use over aisles or work areas to eliminate stumbling or tripping hazards.

Replace open front plugs with dead front plugs. Dead front plugs are sealed and present less danger of shock or short circuit.

Do not use light duty extension cords in a non-residential situation.

Do not carry or lift up electrical equipment by the power cord.

Do not tie cords in tight knots. Knots can cause short circuits and shocks. Loop the cords or use a twist lock plug.

What is a Circuit-breaker?

Always install circuit breakers in house for safety
Always install circuit breakers in house for safety

A Circuit-breaker works by detecting any loss of electrical current in a circuit (e.g., it will trip at a maximum of 6mA). When a loss is detected, the Circuit-breaker turns the electricity off before severe injuries or electrocution can occur. A painful non-fatal shock may occur during the time that it takes for the Circuit-breaker to cut off the electricity so it is important to use the Circuit-breaker as an extra protective measure rather than a replacement for safe work practices.

Circuit-breaker wall outlets can be installed in place of standard outlets to protect against electrocution for just that outlet, or a series of outlets in the same branch circuit. A Circuit Breaker can be installed on some circuit breaker electrical panels to protect an entire branch circuit.

When and how do I test the Circuit-breaker?

It is important that you follow the manufacturer's instructions with respect to the use of a Circuit-breaker. Test permanently wired Circuit-breaker monthly, and portable devices before each use.

Safety Rules

  • Avoid contact with energized electrical circuits. Please don’t make fun of this rule if you already know this (and you probably already know if you are reading these lines) and remember that if something bad occurs – you probably won’t have second chance.
  • Treat all electrical devices as if they are live or energized. You never know.
  • Disconnect the power source before servicing or repairing electrical equipment. The only way to be sure.
  • Do not plug several items into one outlet.
  • Pull the plug, not the cord.
  • Use only tools and equipment with non-conducting handles when working on electrical devices.
  • Never use metallic pencils or rulers, or wear rings or metal watchbands when working with electrical equipment. This rule is very easy to forget, especially when you are showing some electrical part pointing with metallic pencil.
  • RWhen it is necessary to handle equipment that is plugged in, be sure hands are dry and, when possible, wear nonconductive gloves, protective clothes and shoes with insulated soles.
  • Use extension cords only to temporarily supply power to an area that does not have a power outlet.
  • Keep extension cords away from heat, water and oil. They can damage the insulation and cause a shock.
  • Do not allow vehicles to pass over unprotected extension cords. Extension cords should be put in protective wireway, conduit, pipe or protected by placing planks alongside them.
  • If it is safe to do so, work with only one hand, keeping the other hand at your side or in your pocket, away from all conductive material. This precaution reduces the likelihood of accidents that result in current passing through the chest cavity.
  • Minimize the use of electrical equipment in cold rooms or other areas where condensation is likely. If equipment must be used in such areas, mount the equipment on a wall or vertical panel.
  • Drain capacitors before working near them and keep the short circuit on the terminals during the work to prevent electrical shock.
  • Enclose all electric contacts and conductors so that no one can accidentally come into contact with them.
  • Never handle electrical equipment when hands, feet, or body are wet or perspiring, or when standing on a wet floor.
  • Do not store highly flammable liquids near electrical equipment.