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- 1. Fill in the BlankWhere the supply-side bonding jumper of the wire type is run with the derived phase conductors from the source of a separately derived system to the first disconnecting means, it shall be sized based on _____.
- 2. Fill in the BlankFor a single separately derived system, the grounding electrode connects to the grounded conductor of the derived system to the grounding electrode at the same point on the separately derived system where the _____ is connected.
- 3. Open EndedThe common grounding electrode conductor installed for multiple separately derived systems shall be permitted to be a ____ pipe.
- 4. Fill in the BlankTap connections to a common grounding electrode for multiple separately derived systems shall be made at an accessible location by _____.
- 5. Open EndedIn an area served by a separately derived system, the ____ shall be connected to the grounded conductor of the separately derived system.
- 6. Open EndedFor a separate building or structure supplied by a separately derived system when overcurrent protection is provided where the conductors originate, the supply conductors shall contain an ____.
- 7. Open EndedThe frame of a portable generator shall not be required to be connected to a ____ if the generator only supplies equipment mounted on the generator, cord-and-plug connected equipment, or both.
- 8. Open EndedWhen a permanently installed generator ____, the requirements of 250.30 shall apply.
- 9. Open EndedBonding jumpers from grounding electrodes shall be permitted to be connected to an aluminum or copper busbar not less than ____ thick and ____ wide and of sufficient length to accommodate the number of terminations necessary for the installation.
- 10. Open EndedIn an arc system, if the size of the grounding electrode or bonding jumper connected to a concrete-encased electrode does not extend on to other types of electrodes that require a larger size of conductor, the grounding electrode shall not be required to be larger than ____ AWG copper.
- 11. Open EndedWhere conditions of maintenance and supervision ensure only qualified persons service the installation in ____ buildings, the entire length of the metal water piping system can be used for grounding purposes provided the entire length.... is exposed.
- 12. Open EndedA bare 4 AWG copper conductor installed horizontally near the bottom or vertically, and within that portion of a concrete foundation or footing that is in direct contact with the earth, can be used as a grounding electrode when the conductor is at least ____ ft in length.
- 13. Open Ended____ shall not be used as grounding electrodes.
- 14. Open EndedGrounding electrodes of the wire-type can be ____.
- 15. Open EndedWhere service equipment consists of more than one enclosure, grounding electrode connections shall be permitted to be ____.
- 16. Open EndedIf conductors are installed in parallel in the same raceway, a single wire-type conductor shall be permitted as the equipment grounding conductor and sized based on the ____ or ____ .
- 17. Open EndedExcept as provided in 250.122 for raceway or cable tray installations, the equipment grounding conductor in each multiconductor cable shall be sized based on the ____.
- 18. Open EndedIt shall be permissible to ground meter enclosures immediately adjacent to the service disconnecting means to the ____ circuit conductor on the load side of the service disconnect, if service ground-fault protection is not provided.
- 19. Open EndedA listed exposed work cover can be the grounding and bonding means when the device is attached to the cover with at least ____ permanent fasteners and the cover mounting holes are located on a non-raised portion of the cover.
- 20. Open EndedThe receptacle grounding terminal of an isolated ground receptacle shall be connected to an ____ equipment grounding conductor run with the circuit conductors.
- 21. Open EndedA separate bonding jumper to the building's structural metal shall not be required if the metal frame of a building or structure is used as the ____ for the separately derived system.
- 22. Open EndedLightning protection system ground terminals ____ be bonded to the building or structure grounding electrode system.
- 23. Open EndedWhen ungrounded circuit conductors are increased in size to account for voltage drop, the wire-type equipment grounding conductor shall be proportionately increased in size according to the increase in size of the ungrounded conductors using their ____.
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