Electrical Wiring Residential
Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 32, Problem 1R
To determine

Find the basic safety rule when working with electricity.

Expert Solution & Answer
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Answer to Problem 1R

The basic safety rule when working with electricity is to turn off the power.

Explanation of Solution

Discussion:

The basic safety rules to be followed when working with electricity are listed below:

  • When hooking up with the standby systems, always turn OFF the power. Do not work with “live” equipment.
  • Installation instructions provided by the equipment manufacturers should be read and followed carefully to operate equipment.
  • Do not work with wet hands.
  • Do not stand on water when working with electricity.
  • After qualifying from the electrical testing laboratories, equipment such as panelboards, generators, transfer switches, and power inlets should be installed.
  • Do not touch the bare wires.

Conclusion:

Thus, the basic safety rule when working with electricity is to turn off the power.

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a) Write down the order of the transfer function in each of the following cases. Assume that there are no terms in the numerator that will cancel terms in the denominator. 10 H(s) H(s) = s+1 5 (s+3)(s—. 4) 4s1 5 H(s) = H(s) - 83 +1 s27s 6 H(s) H(s) = s(s²+4s) 2s27s+1 84583882 +3s+2 H(s) 83 +8 s+1 = H(s) s34s26s+5 s52s4383 + 4s2 +5s +6
Question 5 ( A system is found to have zeros of -3 and poles of 4, and -2. The system also has a gain of 4. Write out the corresponding transfer function. Question 6. A system has a transfer function of What is the gain, K, of the system? Question 7 ( A system has a transfer function of H(s) - 4 8+5 H(s): = 4 8 +5 A step input of size 3 is applied to the system at time zero (Since we're dealing with transfer functions, x(0) is also zero at time zero). a) [10] What is the response ✗(s) of the system? b) [10] Derive the time dependent solution, x(t), of this response
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