Across
- 6. A lead-acid cell that is sealed with the exception of a valve that opens to the atmosphere when the internal pressure in the cell exceeds atmospheric pressure by a pre-selected amount, and that provides a means for recombination of internally generated oxygen and the suppression of hydrogen gas evolution to limit water consumption.
- 7. The underground conductors between the utility electric supply system and the service point.
- 9. Live parts capable of being touched; not suitably guarded, isolated, or insulated
- 11. All circuit conductors between the services equipment, the source of a separately derived system, or other power supply source and the final branch-circuit overcurrent device
- 15. A ground potential gradient (difference) that can cause current flow from foot to foot through the body
- 20. Abbreviation of a device intended for the protection of personnel that functions to de-energize a circuit or portion thereof within an established period of time when a current to ground exceeds the values established for a Class A device.
- 21. Any current in excess of the rated current of equipment or the ampacity of a conductor.
- 22. A unit of an electrical system, other than a conductor, that carries or controls electric energy as its principal function.
- 24. The overhead conductors between the utility electric supply system and the service point.
- 25. Without live parts exposed to a person on the operating side of the equipment
- 29. Covered, shielded, fenced, enclosed, or otherwise protected by means of suitable covers, casings, barriers, rails, screens, mats, or platforms to remove the likelihood of approach or contact by persons or objects to a point of danger.
- 31. A room specifically intended for the installation of batteries that have no other protective enclosure.
- 32. Abbreviation of an assembly of one or more enclosed sections having a common power bus and principally containing motor control units.
- 33. The case or housing of apparatus- or the fence or walls surrounding an installation to prevent personnel from unintentionally contacting energized electrical conductors or circuit parts or to protect the equipment from physical damage.
- 34. The circuit conductors between the final overcurrent device protecting the circuit and the outlet(s)
- 36. A dangerous condition (hazard) associated with the release of energy caused by an electric arc.
- 38. A system consisting of two or more electrochemical cells connected in series or parallel and capable of storing electrical energy received and that can give it back by reconversion.
- 40. An enclosure that is designed for either surface mounting or flush mounting and is provided with a frame, mat, or trim in witch a swinging door or doors are or can be hung.
- 42. A dangerous condition such that contact or equipment failure can result in electric shock, arc flash burn, thermal burn, or blast.
- 44. A conducting object through which a direct connection to earth is established.
- 47. The amount of energy impressed on a surface, a certain distance from the source, generated during an electrical arc event, expressed as cal/cm2
- 49. The point of connection between the facilities of the serving utility and the premises wiring.
- 52. The state of electrical equipment considering the OEM’s instruction’s, recommendations, and applicable industry codes, standards, and recommended practices.
- 55. A person who has demonstrated skills and knowledge related to the construction and operation of electrical equipment and installations and has received safety training to identify and avoid the hazards involved.
- 58. A documented system consisting of electrical safety principals, policies, procedures, and processes that direct activities appropriate for the risk associated with the hazard.
- 59. The value attributed to materials that describes their performance to exposure to an electrical arc discharge.
- 61. A device or group of devices that serves to govern, in some predetermined manner, the electric power delivered to the apparatus to which it is connected.
- 62. A type of cell in which the products of electrolysis and evaporation are allowed to escape freely into the atmosphere as they are generated. (Also called “flooded cell.”)
- 63. The person in charge of the premises, or other persons appointed or selected by the person in charge of the premises who performs certain duties associated with stationary storage batteries.
- 64. A dangerous condition (hazard) associated with the possible release of energy caused by contact with or approach to live parts
- 66. Person A person who is not a qualified person
- 67. A mechanical switching device used for isolating a circuit or equipment from a power source of power.
- 69. Electrically connected to, or is, a source of voltage.
- 70. The basic electrochemical unit, characterized by an anode and a cathode used to receive, store, and deliver electrical energy.
Down
- 1. A device designed to open and close a circuit by non-automatic means and to open the circuit automatically on a predetermined overcurrent without damage to itself when properly applied within its rating.
- 2. The amount of current delivered at a point on the system during a short circuit condition.
- 3. An organization, office, or individual responsible for enforcing the requirements of a code or standard, or for the approving equipment, materials, an installation, or a procedure.
- 4. An approach limit at a distance from exposed live parts within which a worker could receive a second degree burn if an electrical arc flash were to occur. Defines the point which FR protection is necessary to avoid a second degree burn
- 5. The highest level of fault current that could theoretically occur at a point on a circuit. This is the fault current that can flow in the event of a zero impedance short circuit and if no protection devices operate.
- 8. Equipment, materials, or services included in a list published by an organization that is acceptable to the authority having jurisdiction and concerned with evaluation of products, services and equipment.
- 10. Not readily accessible to persons unless special means for access are used.
- 12. A combination of the likelihood of occurrence of injury or damage to health and the severity of injury or damage to health that results from a hazard.
- 13. Inside the Approach Boundary when working near (live parts.
- 14. An overcurrent protective device with a circuit-opening fusible part that is heated and severed by the passage of overcurrent through it.
- 16. A solid, liquid, or aqueous immobilized liquid medium that provides the ion transport mechanism between the positive and negative electrodes of a cell.
- 17. An approach limit at a distance from an exposed live part within which a shock hazard exists
- 18. Coming in contact with live parts with the hands, feet, or other body parts with tools, probes, or with test equipment, regardless of the Personal Protective Equipment a person is wearing
- 19. The distance between a person’s face and chest area and a prospective arc source.
- 23. De-energized, disconnected, LOTO, tested, and grounded
- 26. Capable of being operated without exposing the operator to contact with live parts
- 27. A complete FR clothing and equipment system that covers all parts of the body except the hands and feet
- 28. An assembly of a fuse support with either a fuse holder or fuse carrier, or disconnecting blade.
- 30. Acceptable to the Authority Having Jurisdiction (AHJ)
- 35. An approach boundary limit at a distance from an exposed live part within which there is an increased risk of shock due to electrical arc-over combined with inadvertent movement for personnel working in close proximity to the live part
- 37. The property of a material whereby combustion is prevented, terminated, or inhibited following a source of ignition with or without subsequent removal of the ignition source
- 38. A physical obstruction that is intended to prevent contact with equipment or energized electrical conductors and circuit parts or to prevent unauthorized access to a work area.
- 39. A technique of performing work on live parts after the employee has been raised to the potential of the live part
- 41. A physical obstruction to prevent unauthorized access to a work area and to limit access
- 43. Connected to establish electrical continuity and conductivity.
- 45. An assessment that identifies hazards, estimates the potential severity of injury or damage to health, estimates the likelihood of occurrence of injury or damage to health, and determines if protective measures are required.
- 46. An approach limit (boundary) at a distance from exposed live parts within which work is considered the same as making contact with live parts
- 48. A ground potential gradient (difference) that can cause current flow from hand to hand or hand to foot through the body.
- 50. Equipment designed to withstand the effects of an enteral arcing fault and directs the internally released energy away from the employee.
- 51. Not connected to ground or to a conductive body that extends the ground connection.
- 53. The value assigned to a cell or battery of a given voltage class for the purpose of convenient designation; the operating voltage of the cell or system may vary above or below this value.
- 54. The largest amount of current capable of being delivered at a point on the system during a short circuit condition.
- 56. Equipment that utilizes electric energy for electronic, electrochemical, chemical, heating, lighting, or similar purposes.
- 57. One or more cells chosen to represent the operating parameters of the entire battery (sometimes called “temperature reference” cell).
- 60. Suitable for carrying electric current
- 65. Free from any electrical connection to a source of voltage.
- 68. Operation of equipment in excess of normal, full-load rating, or of a conductor in excess of rated ampacity that, when it persists for a sufficient length of time, would cause damage or dangerous overheating.