Question: 10. What is the conductor ampacity required for a 20 kW, 240 volt central space heater? 11. What is the ampacity of three No.

10. What is the conductor ampacity required for a 20 kW, 240 volt central space heater? 11. What is the ampacity of three No. 4 THWN conductors installed in an ambient temperature of 30 degree Celsius? 12. What is the ampacity of three No. 3/0 conductors installed in free-air? 13. What is the ampacity of eight 4/0 THHN conductors installed a raceway in an ambient temperature of 100 degreee F? 14. What is the ampacity of ten No. 6 THWN conductors installed in a raceway in an ambient temperature of 40 degree C? 15. What is the ampacity of a No. 12 THW when in a conduit with 5 other No. 12 THW's and two bare No. 12 grounding conductors? (all are copper conductors) i need to know how to set up the problem and where to get the info in the nec code book please

Step by Step Solution

★★★★★

3.44 Rating (167 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

What is the conductor ampacity required for a 20 kW 240 volt central space heater Ampacity required ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mechanical Engineering Questions!

What do I need to know now that I have been diagnosed with Multiple Sclerosis?

Need to know how the equation for splitting tensile strength of a concrete cylinder f(ct) = 2P/pi*D*L is derived using mechanics of materials or linear elasticity approach. D=diameter of specimen...

I need to know what the 1. revenue is, 2. what is cost of goods sold, 3. operating expense, 4. interest expense, 5. non recurring events, 6.tax is for this corporation off this income statement all...

The lift-off mass of a Space Shuttle is 2 million kg. If the lift off thrust (the net force upward) is 10% greater than the minimum amount required for a lift-off, determine the acceleration.

An aluminum transmission line with a diameter of 20 mm has an electrical resistance of R' elec = 2.636 x 10 -4 n/m and carries a current of 700 A. The line is subjected to frequent and severe cross...

Consider a project with free cash flows in one year of $130,000 or $180,000, with each outcome being equally likely. The initial investment required for the project is $100,000, and the projects cost...

Review Conceptual Example as background for this problem. It is possible to convert Ficks law into a form that is useful when the concentration is zero at one end of the diffusion channel (C1 = 0 in...

Acort Industries has 10 million shares outstanding and a current share price of $40 per share. It also has long-term debt outstanding. This debt is risk free, is four years away from maturity, has...

A conductor suspended by two flexible wires as shown in Figure P29.14 has a mass per unit length of 0.040 0 kg/m. What current must exist in the conductor in order for the tension in the supporting...

An electric air heater consists of a horizontal array of thin metal strips that are each 10 mm long in the direction of an airstream that is in parallel flow over the top of the strips. Each strip is...

How did the court rule on the contract claim, and why?

You are considering the purchase of a small multifamily building. In year 1, you expect to earn an NOI of $675,000. You project that it will grow by 2.5% every year. You plan to spend $500,000 in...

Before a potential merger, Powell's Books, had 4 1 0 , 0 0 0 , shares outstanding at a market price per share of $ 4 6 . 2 0 . Paperbacks R Us has 6 5 , 5 0 0 shares outstanding at $ 8 2 . 6 5 per...

Measures of Internal Business Process Performance DataSpan, Inc., automated its plant at the start of the current year and installed a flexible manufacturing system. The company is also evaluating...

Why is the Balanced Scorecard an important topic both in devising objectives and in evaluating strategies?

June 17 On March 20 of this year, Granite Bay Jet Ski, Inc., borrowed $12,000 cash by issuing a 90-day, 11.0%, note payable. The proceeds of the note were received and deposited in the Cash account....

Hovington, CPA, knows that while audit objectives relating to inventories may be stated in terms of the assertions as presented in this chapter, they may also be subdivided and stated more...

Paul Corporation reports the following inventory information: Assuming Paul Corporation uses the perpetual inventory system and the direct method prepare the journal entries to record the reductions...

How do effective leaders handle honest mistakes by employees? Group of answer choices Give one positive comment before you give critical feedback on improvements. Catch another employee doing it...

A. Compute the mean return and variance of return for each stock in Problem 1 using (1) The single-index model (2) The historical data In Problem 1 B. Compute the covariance between each possible...

Assume that the forecast for the company in Problem 5 was such that at the end of the fifth year its growth was to decline linearly for four years to reach the steady state 6% growth rate. Assume...

Consider a bond with annual coupon payments of $100,a principal payment of $1,000 in 10 years, and a cost of $1,000. Assume a flat yield curve with a 10% yield to maturity. What is the duration of...

3. If a drug partly blocks a membranes potassium channels, how does it affect the action potentialpg105

16. Suppose researchers find that axon A can produce up to 1,000 action potentials per second (at least briefly, with maximum stimulation), but axon B can never produce more than 100 per second...

11. What is the relationship between the threshold and an action potentialpg105