electrical wiring residential 18th edition chapter 1 answers Residential Electrical Wiring, Electrical Wiring Residential 12 Simple Electrical Wiring Residential 18Th Edition Chapter 1 Answers Photos

12 Simple Electrical Wiring Residential 18Th Edition Chapter 1 Answers Photos

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Residential Electrical Wiring, Electrical Wiring Residential - Two 12/2 and 14/2 nonmetallic-sheathed awg cables input a field. Each cable has an equipment grounding conductor. The 12 awg conductors are related to a receptacle. Of the 14 awg conductors are connected to a toggle transfer. The opposite two 14 awg conductors are spliced collectively due to the fact that they serve as a transfer loop. The box contains cable clamps. Calculate the minimal cubic-inch extent required for the container. Solution: ground wire----#12 (2.25cu. In.)??1 x 2.25 ----------2.25 cu. In. Conductors: 2—#12/2 ---- 2 x 2 x 2.25 ------------------------------nine.00 cu. In. 2—#14/2 ---- 2 x 2 x 2.00 ------------------------------eight.00 cu. In. Gadgets: 1—toggle switch –1 x 2 x 2.25 ------------------------four.50 cu. In. 1—receptacle –1 x 2 x 2.25 ----------------------------4.50 cu. In. Fittings (clamps) 2—cable clamps—1 x 2.25 ----------------------------2.25 cu. In. ------------------------------------------------------------- 31.50 cu. In. The use of the identical wide variety and length of conductors as in questions 28, but the usage of electrical metallic tubing, calculate the minimum cubic-inch quantity required for the box. There can be no separate gadget grounding conductors, nor will there be any clamps inside the container. Answer: floor wire—have to parent on one floor twine due to the local code requirement of all conduit systems requiring a floor wire. The solutions will be the equal because the electrical metallic tubing will require the usage of metallic connectors that must enter the box, you would matter them as fittings, which means that that regardless of how many fittings are getting into the box the you'll determine it at ( 1-times the cubic inch of the biggest conductor that enters the field. To allow for adequate conductor period at electric outlet and device boxed to make up connections, three hundred.14 calls for that now not much less than [ 3 in.(75 mm). 6 in. (150 mm), 9 in. (225 mm)] of conductor length be provided. This duration is measured from where the conductor emerges from the cable or raceway to the stop of the conductor. For container openings having any size much less than 8in. (200mm), the minimal duration of conductor measured shape the field opening in the wall to the quit of the conductor is [ 3 in. (75 mm), 6 in. (150 mm), 9 in. (225 mm). Circle the right answer. Solution page 21 parent 2-2 whilst wiring a residence, what ought to be taken into consideration when installing wall boxes on each aspects of a common partition that separates the garage and a liveable room? The fire score of the partitions need to be maintained which means that containers might not be installed “lower back to lower back” or inside the identical air void. A separation of 24 inches horizontal ought to be maintained except the containers are listed as being fireplace resistant. The boxes which might be on the fire rated wall must be well covered or encased with a fire puddy. Does the nec® allow steel raceways for use with nonmetallic packing containers? Yes _____x______ no__________ nec®______nec® 314.Three (exception) –previded that all metal raceways or cables entering the container are bonded collectively to maintanin the integrity of the grounding path to different device inside the set up. P. 33.