1 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A 8A Safety Electrical Safety Awareness Training Note: This training meets the General Electrical Safety Awareness training requirement mandated by AR

2 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Training Outline Purpose Basic Concepts of Electricity Effects of Electricity on the Human Body Hazard Recognition Electrical Hazard Protection Work Practices How to Respond/Report a Problem Supervisor Responsibilities Employee Responsibilities Summary

3 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Purpose Raise awareness to potential electrical hazards. Provide ways to eliminate, remove, and prevent electrical hazards in the workplace. Understand what to do in the event an electrical accident. If you see problems with electrical equipment, notify your supervisor. Note: this course is not designed to teach you to work on electrical equipment.

4 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A General All equipment will be used in accordance with the listing. All equipment will be used in accordance with manufacturer’s instructions or technical manuals. All electrical equipment used in Army workplaces will be listed by a Nationally Recognized Testing Laboratory (NRTL).

5 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Basic Concepts of Electricity Electricity is the flow of electrons (current) through a conductor. Requires a source of power: usually a generating station. Travels in a closed circuit. When you become part of the circuit, the injury may be fatal.

6 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Effects of Electricity on the Human Body: Electrical Shock Received when current passes through the body. Severity of the shock depends on: – Path of current through the body. – Amount of current flowing through the body. – Length of time the body is in the circuit.

7 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A The most common shock related, nonfatal injury is a burn. Burns caused by electricity may be of three types: –Electrical burns –Arc burns –Thermal contact burns Electrical burns need immediate medical attention. Effects of Electricity on the Human Body: Electrical Shock

8 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Hazard Recognition Cords & Equipment – Power tools and extension cords must be inspected each time they are used. – They must be taken out of service immediately upon discovery of worn or broken insulation. – Never cover any part of an electric cord with newspapers, clothing, rugs, or any objects because it can overheat and cause a fire.

9 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Hazard Recognition Electrical Panels – Electric panels must be kept clear of any obstructions at all times. – Storage is not allowed in electrical vault or service panel rooms. Find another place for storage of materials, products, etc.

10 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Hazard Recognition Trip Hazards –Don’t cause tripping hazards or create pinch points for cords. –If you must run a cord temporarily across the floor, protect your co-workers by covering the cord appropriately.

11 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Hazard Recognition Exposed Wiring –Assume all exposed wiring is energized until proven otherwise. –Stop, protect the area, and contact supervision if you encounter this situation.

12 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Hazard Recognition Power Strips / Surge Protectors –Never daisy chain multi-outlet strips (plugging into each other) –No appliances with heating elements (coffee pot, heaters) or have a surge potential (microwave oven) –Most power strips are limited to watts

13 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Hazard Recognition Junction Boxes –Must have approved covers in place. –Unused openings in cabinets, boxes, and fittings must be closed (no missing knockouts). –Report these situations to your supervisor.

14 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Hazard Recognition No Cover Exposed Wiring Broken Cover

15 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Electrical Hazard Protections Insulation Grounding Electrical protective devices Personal Protective Equipment Safe work practices

16 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Electrical Hazard Protections Insulation –Plastic or rubber coverings that does not conduct electricity. –Insulation prevents live wires from coming in contact with people thus protecting them form electrical shock.

17 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Electrical Hazard Protections Grounding –Grounding is another method of protecting you from electric shock. –However, it is normally a secondary protective measure. –By "grounding" a tool or electrical system, a low- resistance path to the earth is intentionally created.

18 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Ground Fault Circuit Interrupters (GFCI) –Detects the difference in current between two circuits wires. –This difference in current could happen when electrical equipment isn’t working correctly. –GFCI are set at about 5mA and are designed to protect workers and not equipment. Electrical Hazard Protections

19 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Host Nation electrical services and equipment May have different voltages and other characteristics. May not be grounded and may lack basic electrical safety safeguards. A competent authority (G4, Fire Marshal) must determine that it is safe to use Host Nation equipment. Verify equipment voltage requirement and use proper adaptor. Electrical Hazard Protections

20 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Fuses and Circuit Breakers –Fuses and circuit breakers are intended primarily for the protection of conductors and equipment. –They prevent over-heating of wires and components that might otherwise create hazards for operators. –They also open the circuit under certain hazardous ground-fault conditions. Electrical Hazard Protections

21 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Do not work with electricity in wet conditions. Do not overload circuits Make sure switches and insulation are in good condition Never use a three prong plug with the third prong broken off Test GFCI’s monthly Avoid overhead power lines. You should be at least 10 feet away from high-voltage transmission lines Safe Work Practices

22 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Do not panic; remain calm In the event of a personal injury: –Call 911 immediately –If a person is being shocked, turn of the source of electricity –Do not touch someone being shocked –Remove the person away from the electrical source using a non-conductive material –Notify your supervisor How to Respond / Report a Problem

23 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A In the event of an electrical fire: –Activate the fire alarm system –Do not use a Type A, water extinguisher –If you know how to use an extinguisher, use a CO2 or dry chemical fire extinguisher –Alert everyone in the area to evacuate –If you are not sure about using a fire extinguisher, leave the area and close any doors behind you –Wait for the Fire Dept. personnel to arrive How to Respond / Report a Problem

24 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Supervisor Responsibilities Provide employees a safe work environment Emphasize safe work practices Train employee on electrical safety, policies and procedures Check your employees’ work practices to ensure compliance Authorize employee use of power strips and personal use appliances (radio, fan, etc.) Provide the appropriate disciplinary measures for poor electrical safety practices.

25 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Employee Responsibilities Only perform work in which you are trained Follow safe work practices Alert your supervisor and co-workers to any unsafe work conditions Know what to do in the event of an emergency

26 AS OF:141330DEC15 UNCLASSIFIED OPR: 8A Summary Adopting safe work practices is the best way to avoid being injured by electricity Always inspect electrical equipment and cords before each use and do not use them if damaged Do not attempt to repair electrical equipment unless you are trained and qualified Report all electrical hazards to your supervisor