What are three main reasons to install grounds and bonds on an isolated circuit before work is started?
Q: All metal enclosures containing an ungrounded ("hot") service conductor are bonded together by use…
A: All metal enclosures containing an ungrounded ("hot") service conductor are bonded together using…
Q: Which of the following statements about bonding is true? A. The strike terminals of a lightning…
A: Lightning pole (US, AUS) or lightning bar (UK) is a metal bar embedded into a structure and proposed…
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: Fixture whips are permitted to be a maximum of _________ long between outlet box and fixture.
A: Fixture whips are permitted to be a maximum of 6 Feet long between outlet box and fixture. it means…
Q: d.1. What are the two concepts that make up grounding in its simplest form? A. Impedance and…
A: Grounding : connecting high voltage device intentionally to the group using conductor this called…
Q: Expansion fittings and telescoping sections of metal raceways shall be made electrically continuous…
A: In Bonding loosely jointed metal raceways, grounding electeode and grounded current carrying…
Q: 1. A feeder is made up of three conductors (500 MCM, copper, 75°C rated) that are placed in a…
A: “Since you have asked multiple questions, we will solve the first question for you. If youwant any…
Q: What should be done with light sources that are connected at each end of a cable while it's being…
A: For proper safety, we should always take care of certain measures and steps needed to be taken while…
Q: When installing grounding electrode conductor at services, it's common to use a single large common…
A: Here we discuss about grounding/earthing related concept.
Q: Give the raceway size required for each of the following conductor combinations: 1. Five, 10 AWG,…
A: The raceway size required for each of the following conductor combination is given as per the…
Q: 6.A. How many grounded neutral conductors are in a 208Y/120 volt, 3-phase, 4-wire system? A. Three…
A: A power station is to provide electricity to a huge number of people. Different customer’s power…
Q: What is the allowed ampacity of tap conductors that supply a motor lead and do not exceed5 feet in…
A: 5. (i) Except as permitted in 240.21(A) through (H), conductors must be equipped with over-current…
Q: The minimum size raceway for the following branch circuit conductors is: Twelve, 6 AWG conductors…
A: The transmission of power from one place to another is very necessary, usually, the voltage level of…
Q: An aluminum conductor with a diameter of 0.2 in. was badly damaged during a short-circuit. It was…
A: The resistance of a circular conductor (R) is given by: Where, The resistivity of the conductor is…
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: Wiring methods permitted for service conductors include. A. Rigid metal conduit B.…
A: The conductors which run from the service point to the service equipment are classified as service…
Q: When installing raceways underground in rigid nonmetallic conduit and other approved raceways, there…
A: To find the cover distance in installing underground raceways in rigid non-metallic conduit.
Q: Name two types of conductor insulation designed to be underground
A:
Q: a system or circuit conductor (one that carries current), that is intentially grounded is referred…
A: The grounding is done to provide path for excess flow of current in order to prevent the devices or…
Q: Where nonmetallic-sheathed cable is run at angles with joists in unfinished basements, it shall be…
A: According to article 334 nonmetallic -sheathed cable . Where nonmetallic-sheathed cable is run at…
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: Duct banks for medium- and high-voltage feeders are identified with _______ on top before final…
A: In this case, the identification of the duct banks with medium and high voltage feeders needs to be…
Q: What happens in a multi-wire branch circuit when the grounded (neutral) opens or becomes…
A: The explanation is as follows.
Q: Which type of Insulator is used in Substations to support connections for High Voltage Switchgears,…
A: Given To determine which type of insulator is used in substation
Q: resistance testing? A. Fall-of-potential B. Line surge C. Spatial shielding D. Leakage current c.3.…
A: 1) correct option is A because Its function is to keep your equipment or system as close as possible…
Q: Vhich of the following systems of wiring is the costliest? O Conduit wiring O Wooden casing and…
A: Option A Conduit wiring is costliest among all wiring systems
Q: Exposed non-current-carrying metallic parts of electrical equipment must be grounded if installed…
A: The given code is related to the National Electricity code (NEC) 410.10(D) Bathtub and Shower Areas.
Q: 3.a. When feeders or branch circuits are installed to supply a separate building or structure, a/an…
A: Answer 3.a) When feeder or branch circuits are installed to supply a separate building or structure,…
Q: The Bedding protects the Core or Conductor against corrosion and mechanical injury due to armoring.…
A: Given The Bedding protects the Core or Conductor against corrosion and mechanical injury due to…
Q: This discussion relates to Bonding. Whys is bonding of the conduit necessary when using reducing…
A: Bonding becomes necessary to reduce the risk of shock and it also provides a low impedance path to…
Q: 17/ Which is among these show incorrect order of the layers (inner going outward) in the…
A:
Q: . You're installing type AC cable. The armor coating of type AC cable is allowed for use as an…
A: Requirement for the installation and constructions for AC 'Armored cable' are located in Article…
Q: Grounding lighting fixtures. Threre are specific requirements for grounding lighting fixtures. How…
A: The light fixtures may have an external chassis made out of metal. In that case, run a green wire…
Q: 13.C. What is the most common grounding electrode used to connect utility service equipment to…
A: 13.C. What is the most common grounding electrode used to connect utility service equipment to…
Q: 14 Which type of Insulator is used in Substations to support connections for High Voltage…
A: Which type of insulator is used in substations to support connections for High voltage switchgears,…
Q: 8.a. A grounded conductor is a conductor that has been _______ grounded. A. electronically B.…
A: 8.a. A grounded conductor is a conductor that has been intentionally grounded. It is used to carry…
Q: 14. Which of the following statements about the neutral ground-strap ground fault protection system…
A: An Equipment Grounding Conductor (EGC) is used to ground the metallic parts of the equipment, which…
Q: a.3. Main bonding jumpers are required to be made of _______ or other corrosion-resistant material.…
A: a.3. Main bonding jumpers are required to be made of _______ or other corrosion-resistant…
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: 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: 3. Which of the following statements about the use of structural steel as an equipment grounding…
A: We need to choose the correct option for the given question.
Q: Explain what it means to install "conductors in parallel," and give five conditions that must be…
A: Conductors in parallel have same voltage across each other. Conductors in parallel is installed to…
Q: Which of the following factors affect conductor voltage drop in a branch circuit? Check all that…
A: Which of the following factors effect conductor voltage drop in a branch circuit? Conductor length…
Q: Which of the following products are not suitable for bonding on the supply side of the service…
A: The problem of bonding is frequent where the electrical installation is required. The load side…
Q: Starting from the Core to the Serving, the proper order of the layers of the Underground Cable is O…
A: Power system requires transmission of power from generation end to the consumer end. The power…
Q: The recommended limit of voltage drop on a lighting circuit for a single-phase supply as per IEE…
A: 1) 230 V The value of supply voltage is 230 v as per IEE wiring regulations
Q: If a grounding electrode conductor is connected at the first system disconnecting means or…
A: As per the NEC [250.30(A)(3)], the system bonding jumper can be either installed at the separately…
Q: 1. A wire used for wiring electric ranges, hot water heaters, stoves and hairdryers where both heat…
A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…
Q: In which type of wiring polyvinyl chloride and vulcanized Indian rubber insulated wires are used as…
A: Vulcanized Indian Rubber: These comprises of a copper conveyor covered with a protection layer of…
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- Explain what it means to install "conductors in parallel," and give five conditions that must be satisfied when this is done.12 - Due to the effect of the resistance of the cable connected to RTD, two-wire cables up to ……. meters and three-wire cables up to ……... meters are used in standard designs. A) 10-150B) 40-500C) 50-195D) 30-230E) 200-1000Most residential general lighting circuits are wired with 14-AWG copper conductors and are protected by 15-amp circuit breakers. However, there are many electricians who install 12-AWG copper conductors and protect them with 20-amp circuit breakers. How will you know which conductor size and which circuit breaker size will be used for the general lighting branch circuits in the house you are wiring?
- Electrical Engineering What is the smallest square box that will accommodate four No. 12 conductors and four No. 10 conductors if a. These conductors are pulled through without a splice? b. These conductors are all spliced in the box?Explain the different conductor types, sizes, materials, and configurations.What is the purpose of grounding and bonding? _____________________________ ____________________________________________________________________
- - Indicate whether the following statement are true or false * True False In an armature winding, conductors are connected in series- parallel combinationLow-voltage conductors. a. are not powerful enough to cause death from electrocution b. must exceed 480V to cause death C. are responsible for most electrocution deaths due to the frequency of contact d. are unlikely to cause injury if rubber-soled shoes are wornA. Discuss the arcing phenomenon in a circuit breaker. B. Discuss the types of oil circuit breakers. With references
- When installing grounding electrode conductor at services, it's common to use a single large common grounding electrode conductor and connect multiple grounding electrode conductor to it A. clamps B.jumper C. taps D.screwsh.1. In an alternating-current system, the maximum size for a copper grounding electrode conductor isA. 250 kcmil.B. 3/0.C. 500 kcmil.D. 4/0. h.2. The figure shows a fault condition in an ungrounded electrical system. Which of the following will occurbecause of the fault in this system?A. Only the overcurrent protector at Point A will trip open.B. The ground fault will heavily damage the service.C. Nothing will happen until a second ground fault occurs.D. The overcurrent protection will trip, shutting off all the line side power.A common practice for electricians is to use a clamp-on ammeter to measure the current flow on each ungrounded conductor of a service entrance when all the house electrical loads are connected. Discuss what kind of information can be found by using a clamp-on ammeter in this way.