______ protection of equipment shall be provided for solidly grounded wye electrical services of more than 150 volts to ground, but not exceeding 600 volts phase-to-phase for each service disconnecting means rated 1000 amperes or more. Select one: a. arc-fault b. short circuit c ground-fault d. double

______ protection of equipment shall be provided for solidly grounded wye electrical services of more than 150 volts to ground, but not exceeding 600 volts phase-to-phase for each service disconnecting means rated 1000 amperes or more. Select one: a. arc-fault b. short circuit c ground-fault d. double

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter14: Lighting Branch Circuit For The Study/bedroom

Section: Chapter Questions

Problem 3R

See similar textbooks

Similar questions

Which of the following is a term missing from the National Electrical Code but used by manufacturers of equipment that's suitable for use as service equipment? Micro-grid  Selective coordination Neutral disconnect link Grounding triad The _______ is required to be connected to the grounded conductor of the sensitive electronic system on the line side of the separately derived system disconnecting means. main bonding jumper  equipment grounding terminal bus neutral ground strap neutral disconnect link
NEC 590.6(A)(3) requires that all 125-volt and 125/250-volt, single-phase, 15-, 20-, and 30-ampere receptacle outlets used on a construction site that are a part of a portable generator have listed: (Circle the correct answer.) a. ground-fault circuit interrupter protection for personnel. b. grounding-type receptacles. c. twist-lock receptacles.
18. Which of the following would help avoid the choke effect in grounding electrode conductors?A. Installing a main bonding jumperB. Using an approved polyvinyl chloride conduitC. Applying solder to the connectionD. Using bonding bushes on the ends of the raceway
How many circuit wires enter the entry ceiling box? How many equipment grounding conductors enter the entry ceiling box?
19. Which of the following is an approved disconnecting means for a feeder or branch circuit supplying a separate building or structure? A. Bonding locknutB. PanelboardC. Circuit breakerD. Overcurrent device
When installing a surge arrester at the service of less than 1000 volts, the grounding conductor shall be connected to ______. the grounded service conductor the grounding electrode conductor III. the grounding electrode for the service the equipment grounding terminal in the service equipment (a.) I & II only (c.) III & IV only (b.) I & III only (d.) I, II, III or IV
It is generally understood that grounding and bonding together all metal parts of an electrical system and the metal shield of the cable television cable to the same grounding reference point in a residence will keep both systems at the same voltage level should a surge, such as lightning, occur. Therefore, if the incoming cable that has been installed by the CATV cable company installer has the metal shield grounded to a driven ground rod, does this installation conform to the NEC? ___________
When a metal junction box is installed as part of the cable wiring to a clothes dryer or electric range, may this box be grounded to the circuit neutral conductor?
Are double locknuts an acceptable bonding method for Class 1, Division 1 Hazardous locations? If not, list an acceptable method, backing up your answer with a code citation.
Per NEC 590.6(A)(3), All 125-volt and 125/250-volt, single-phase, 15-, 20-, and 30-ampere receptacle outlets that are a part of a 15-kW or smaller portable generator shall have listed ground-fault circuit-interrupter protection for personnel. Group of answer choices True False
Construction sites can be dangerous because of the manner in which extension cords, portable electrical tools, and other electrical equipment are used and abused. To reduce this hazard, 590.6(A) of the NEC requires that all 125-volt, single-phase, 15-, 20-, and 30-ampere receptacle outlets used for temporary wiring during construction must be _________________ protected.
Is a GFCI receptacle permitted be installed as a replacement in an old installation where the 2-wire circuit has no equipment grounding conductor? _________________