RYKO Electrical Safety Procedures

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1 RYKO Electrical Safety Procedures Introduction: Electricity can be dangerous if an individual is not properly trained on how to work with it. Serious injury or death from both high and low voltage can occur if safety methods are not followed. Many electrical shocks and electrocutions (death) are the result of contact with low voltage. Most household and workplace appliances run on low voltage. Contact with low voltage currents can cause a person to lock on to an electrical source. The affected person can be unable to let go of the electrical source and electricity will continue to flow through their body until the current is switched off. High Voltage= >1000 VAC or 1500 VDC Low Voltage= 50v to 1000VAC Extra Low Voltage= <50VAC Contact with high and low voltage can also cause the person to be thrown clear of the current. This can cause the person to fall and receive other serious injuries especially if the fall is from a height. Purpose: This procedure describes how electrical work is to be performed by qualified personnel on energized and de-energized circuits. Policy: All electrical work will be conducted in a manner consistent with existing company policies and with good standard practices and Common Sense. This procedure describes how electrical work will be performed by qualified RYKO employees. Responsibilities: Supervisors: Ensures that all employees are properly trained and instructed in the safe operation of electrical equipment and aware of all hazards associated with the use of these electrical devices. Initiates any necessary administrative action required to enforce safety practices. Employees: Follows the companies electrical safety policy and procedures. Brings to the attention of their supervisor of potential hazardous situations such as faulty equipment or infractions of company policies.

2 Employees are not to work on or near energized circuits without proper lighting (i.e. flashlights, task lights, etc.) If employees are working in a confining environment, they are to utilize their insulating mat as a barrier for protection against live circuits. When handling long dimensional conductive objects (i.e. track pipe, machine booms, etc.) the employees are to use caution to avoid coming in contact with energized circuits/wires. Employees are to only use portable ladders that have nonconductive side rails. When working under overhead lines, employees operating vehicles or mechanical equipment should maintain a minimum clearance distance of 10 feet. Qualified Person An employee is considered qualified after they are trained in the applicable electrical safe work practices. Following completion of training, employees are permitted to work on energized parts and equipment. Procedure De-Energized Parts: When performing any repairs or work that does not require energy the circuit should be de-energized. When any employee is exposed to direct or indirect contact with parts of electrical equipment or circuits which have been de-energized, the electrical energy source will be locked out according to RYKO s Lockout/Tagout (LOTO) procedure. The general procedure for using a voltage detector or tester to determine if a circuit is deenergized is as follows: Check for any indicator lights that are normally on during it s energized state. Verify that there is no incoming voltage using a voltage tester that will accommodate the power at hand. Energized Parts: The following pictures show three of RYKO s many panels used to operate vehicle wash equipment. Other control boxes used may vary in size and appearance, but operate in the same manner and the same work safety practices should be used for every panel.

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4 Any component located inside the control panel in its energized state could have high and low voltage. Observe all warning labels applied to both inside and outside the enclosure. There may be one or more power sources to consider when de-energizing the panel. If work must be performed while equipment is energized or if de-energizing is not feasible, such as troubleshooting, additional safety measures shall be used as follows. Only qualified individuals are allowed to perform work directly on energized parts or equipment. Qualified persons shall use their personal protective equipment. The following is a list of some of the Personal Protective Equipment tools that are issued to qualified personnel: Safety Glasses Insulated Screwdrivers, Flat & Phillips Insulated Needle Nose Pliers Insulated Side Cutters Insulated Floor Mats. (When working on damp surfaces) Prior to each use, employees are to visually inspect their P.P.E. for any damage or wearing out of insulation on the tools. Employees are to read all cautionary labeling on P.P.E. prior to use. As our manufacturing and related processes change and additional P.P.E. items are required, they will be provided to ensure the safety of employees.

5 Minimum Approach Distances When a qualified person is working in the vicinity of overhead lines, whether in an elevated position or on the ground, the person may not approach or take any conductive object without an approved insulating handle closer to exposed energized parts than shown in table below, unless the person and/or the energized part is insulated from contact. Voltage range (phase to phase) Minimum approach distance 300V and less Avoid Contact Over 300V, not over 750V 1 ft. 0 in. (30.5 cm). Over 750V, not over 2kV 1 ft. 6 in. (46 cm). Over 2kV, not over 15kV 2 ft. 0 in. (61 cm). Over 15kV, not over 37kV 3 ft. 0 in. (91 cm). Over 37kV, not over 87.5kV 3 ft. 6 in. (107 cm). Over 87.5kV, not over 121kV 4 ft. 0 in. (122 cm). Over 121kV, not over 140kV 4 ft. 6 in. (137 cm). When Unqualified Persons are working in an elevated position near overhead lines, the location shall be such that the person and the longest conductive object he or she may contact cannot come closer to any unguarded, energized overhead line than the following distances: For voltages to ground 50kV or below - 10 feet (305 cm); For voltages to ground over 50kV - 10 feet (305 cm) plus 4 inches (10 cm) for every 10kV over 50kV. Responding To Electrical Emergencies The first thing to remember is that you could become a victim yourself. PRIOR to touching the victim(s), shut down the power, then call for the medical services team. On The Job Safety Following safe work procedures on the job will help protect you from injury. Safe work procedures for performing electrical work may include but not limited to the following: Check the panel disconnect or breaker to ensure you are working on the correct circuit. The use of RYKO schematics and wiring diagrams will help aid in determing which circuits are live and are not. All 120-volt, single-phase 15- and 20-ampere receptacle outlets on construction sites, which are not a part of the permanent wiring of the building or structure and

6 which are in use by employees, shall have approved ground-fault circuit interrupters for personnel protection. Make sure that the equipment can be de-energized without effecting other equipment that may be on the same circuit. Check the equipment to determine what is energized and what is not. Avoid wearing metal jewelry and other conductive objects. Protection From Arcs Arcs are another type of electrical hazard associated with electrical equipment. An electrical arc can burn or blind you. De-energize all circuits prior to removing any wires or fuses. Summary In a properly designed and maintained system, electrical current is safely channeled in controlled paths. Faulty insulation, careless handling or improper grounding allows the current to get out of control. Your body may provide the path to ground that allows electricity to seek its source. The single most successful defense against electrical accidents is the continuous exercising of good judgment or common sense. Electricity is a silent invisible force that can kill without warning if it s dangers are ignored. Treat this powerful energy with caution and respect.