25.a. Which of the following is not measured in lumens/ft2? A. Exitance B. Footcandles C. Illuminance D. Candlepower

Q: What is the maximum ampacity of a #8 copper conductor in a conduit with type THWN insulation used in…

A: The given conductor is conduit type  #8 copper with  THWN insulation, the ambient temperature of 50…

Q: The conductor diameter of a single-core underground cable is 1.0 cm and the insulation thickness is…

A:

Q: . Which of the following statements about securing and protecting grounding electrode conductors is…

A: A) Ground elecrodes can be run through wood framings. Since wood being an insulator and doesn't hold…

Q: 23. A grounding conductor helps prevent a shock hazard in the event that an ungrounded, or hot,…

A: The explanation is as follows.

Q: 12. Which of the following statements about ground faults is true? A. They can happen if a…

A: Given  Which of the following statements about ground faults is true? Mark the correct answer

Q: A single-conductor belted cable of 5 km long has a conductor diameter of 2 cm and an inside diameter…

A: Consider the given question;

Q: No. 12AWG copper conductor with a two-way length of 500ft is carrying a load of 10A on a 270V,…

A:

Q: Considering the termination temperature ratings of the equipment used in residential wiring, discuss…

A: In residential wiring the selection of conductor ampacity is always determined based on the 60°C…

Q: Describe what the following conductor designation means when it is printed on the insulation;…

A:

Q: Sort out the materials (Insulation over the conductors) used in Low Voltage, Medium Voltage and High…

A: The satisfactory operation of a cable depends to a great extent upon the characteristic of…

Q: D.1-. Which of the following names is commonly used for armored cable on commercial and industrial…

A: D1. MC (metal clad cable) is commonly used for armored cable on commercial and industrial jobs…

Q: With respect to conductor insulation, describe the following location ratings: a. Dry b. Damp c. Wet

A:

Q: What is the withstand rating of a AWG copper conductor? A. 60,516 ampere squared seconds b. 121,032…

A: AWG conductor stands for American Wire Gauge conductor.

Q: 3. The towers of height 35 m and 95 m respectively support a transmission line conductor at water…

A:

Q: Find the ampacity of a # 4 AWG copper conductor with type RHW insulation. The conductor is to be run…

A: In order to find the ampacity of the conductor with different type of installations and at different…

Q: 11. Which of the following statements about the use of structural steel as an equipment grounding…

A: We are authorized to answer the first question since the exact one wasn’t specified. Please submit a…

Q: Airframe Electrical System Question: In general, what factors areconsidered when selecting the…

A: While manufacturing, the sizes of the wire are selected according to a known standard called as…

Q: 10. Which of the following statements about ground faults is true? A. They usually occur between any…

A: Ground faults: It happens when an energized conductor develops an accidental contact with the…

Q: Which of the following is not a criteria for the mechanical design of an overhead line? O Minimum…

A: over head lines are designed based on distance between conductor and earth , tensile stress ,…

Q: 1) What is the allowable ampacity of a single #2 THHN conductor that is installed in a conduit with…

A: It is asked to find the the allowable ampacity of a single #2 AWG THHN conductor that is installed…

Q: A(n) _________ is a reliable conductor used to ensure the required electrical conductivity between…

A: The explanation is as follows.

Q: The equipment grounding conductor of a grounding-type receptacle or a branch-circuit extension is…

A: True, The equipment grounding conductor of a grounding-type receptacle or a branch-circuit extension…

Q: _______ is not considered an effective ground-fault current path. a) Ground b) Equipment grounding…

A: “Since you have asked multiple questions, we will solve the first question for you. If youwant any…

Q: Assuming copper, standard wire type, and normal temperature rating, what is the typical conductor…

A: There is a standard table to know the conductor size (in AWG) in American Wire Gauge, which gives…

Q: You're installing an aluminum grounding electrode conductor that has an insulating jacket. Which of…

A: Aluminum grounding electrode conductor should not be used in direct contact with masonry or earth,…

Q: A 2-wire d.c. distributor cable AB is 3 km long and supplies loads of 100A, 150A,200A and 50A…

A: We have a 2-wire D.C distributor cable with 3 Km long which supplies loads given A from feeding…

Q: An overhead line has a span of 150 m between level supports. The conductor has a cross-sectional…

A: We have an overhead line with the line parameters as, Line Span (l) = 150 m Cross-sectional area = 2…

Q: Four 6 AWG THW Cu conductors are installed in the same conduit to supply fastened-in-place…

A: Given Ambient temperature =30 degree celcius three conductors are carrying current

Q: A protective conductor connecting exposed conductive parts of equipment to the main earthing…

A: In earthing a conductor is used to connect the exposed conductive parts(metallic parts) of various…

Q: Which of the following criteria is correct for the mechanical design of the overhead line? Minimum…

A: Design parameters of design  mechanical design of the overhead line.

Q: Define an equipment grounding conductor. The conductive path that part. of eftective an graund-fault…

A: Grounding is generally a direct physical connection to the earth. Electrical circuits are connected…

Q: Seven 8 AWG copper conductors are run in conduit. Each conductor has type THHN insulation. The…

A: Given Copper wire AWG =8 total number of copper wires =7 Type of insulation THHN Ambient temperature…

Q: The conductor diameter of a single-core underground cable is 1.0 cm and the insulation thickness is…

A: The solution for the given is, ρ=5×104 Ω-cmρ=5×104×10-2 Ω-mρ=5×102 Ω-ml=2 Kml=2000 md=1…

Q: A set of conductors is used to supply residential unit with a total load current of 60 A at a…

A:

Q: 16. A conductor installed from a bonding/grounding bushing that's used to provide a conducting…

A: A conductor installed from a bonding/grounding bushing that's used to provide a conducting…

Q: If the NEC provides a requirement to grounding equipment, it generally implies that there will be a…

A: Here we understand the concept related to grounding.

Q: of p o How many conductors enter the ceiling fan/light wall box? Switch ond out let boxes s tirst…

A: We are authorized to answer one question at a time since you have not mentioned which question you…

Q: 14. If the total circular mil area of the largest ungrounded service-entrance conductor for a…

A: Explanation: The equivalent area of four ungrounded paralleled 500 kcmil conductors is 2000 kcmil.…

Q: Twenty-two 14 AWG copper conductors are run in conduit. Each conductor has type THHN insulation. the…

A: The given information is:

Q: separable

A: Given that  Which of the following conductors in a typical separable connection plug and receptacle…

Q: 13. If the largest ungrounded service-entrance conductor for a service is 750-kcmil copper, what is…

A: Choose the correct option,  If the largest ungrounded service-entrance conductor for a service is…

Q: A widely accepted practice is to identify 3-phase ungrounded (hot) conductors as ____ in 208/120…

A: Generally, the color coding for a 208/120 volt, three-phase, four-wire, wye-connected system is…

Q: 16. Flexible metal conduit will be installed between a raceway and a transformer in a system. If…

A: Note: We are authorized to answer the first question since the exact one wasn’t specified. Please…

Q: A? Conductor is defined in NEC 240.2 as a conductor, other than a service conductor, having…

A: The article 240.2 determine the current limiting of the over current protective device is used to…

Q: Q1) A 2-wire d.c. distributor cable AB is 2 km long and supplies loads of 100A, 150A, 200A and 50A…

A:

Q: is the required size of THHN copper conductors for a feeder serving two 208Y/120V, four-wire,…

A:

Q: How many 14 AWG THHN conductors, including an equipment grounding conductor, can be installed in a…

A: Here we have to refer standard tables, When determining the maximum number of conductors permitted…

Q: Airframe Electrical System Question: Which wire installation type has the best rating and is the…

A: The wire installation type with best rating and most resistive to breakdown in a chemical…

Q: What size equipment grounding conductor is used with # 8 AWG nonmetallic-sheathed cable

A: The minimum size equipment grounding conductor is selected on the basis of the current rating…

HVDC

HVDC stands for high voltage direct current in the electric power transmission system. The high voltage direct current system uses direct current (DC) for the transmission of electrical power through transmission lines in contrast with the alternating current that is the AC system. The HVDC is used to transmit bulk power point-to-point through long distances transmission lines. Power is rapidly transferred because the efficiency of transmission lines is greatly increased over long distances due to HVDC lines.