#5. This test can be accomplished with various Nov 10, 2018 · (C) Grounded Conductor Brought to Service Equipment. Apr 27, 2016 · 250. Feb 1, 2000 · Grounding conductor used to ground equipment: Sec. The main bonding jumper d. 20. It carries all the fault current from the equipment grounding arrangement returning to the source. Apr 6, 2016 · But 250. (1) Ground-fault protection of equipment is not installed. , within or ahead of the enclosure. [29 CFR 1926. Service equipment supplied from a grounded system must have the grounding electrode conductor (GEC) terminate in accordance with the requirements of Sec. 11) 250. 122. a and b D. Equipment grounding conductors are the effective ground-fault current path at the feeder and branch circuit levels of the The Equipment Grounding Conductor (EGC) plays a crucial role in ensuring electrical safety within a system. This Subsection directs the user to the reference for the _MINIMUM_ Grounded Conductor size. 40 C. Dec 11, 2019 · A. 42 (C). a) 250. What is the correct approach. 24(C) requires the grounded conductor to be routed with the phase conductors from the transformer to the service equipment. Grounded conductor routing The grounded conductor per Section 250. There is ample discussion at this site. Jul 11, 2007 · 250. ”. The size of the solidly grounded circuit conductor (s) shall be the larger of that determined by 250. 24 (C). Apr 10, 2023 · In a solidly grounded system, a grounding conductor must be connected only to a grounded service conductor (to a neutral conductor brought to the service equipment from the solidly grounded power supply source). 24(C). Table 250. Is that permissible OR should I add a ground conductor to each conduit. Parallel equipment grounding conductors Our designers are considering an installation of nonmetallic cable tray with MC cables for a parallel feeder, which brought up some questions. Service equipment that has its grounded conductor terminal busbar bolted to the enclosure and no bonding jumper) would be rated A. 24(D) further clarifies that “a grounding electrode conductor be used to connect the equipment grounding conductors, the service equipment enclosures and the Summation of Grounding and Bonding. 52 Sep 3, 2023 · National Electrical Code (NEC) Section 250. Where an ac system operating at 1000 volts or less is grounded at any point, the grounded conductor (s) shall be routed with the ungrounded conductors to each service disconnecting means and shall be connected to each disconnecting means grounded In this 2011 image, the 12,470-volt, fully submersible electric service was just set in place. c) 310. 2). A main bonding jumper Jul 24, 2023 · 2. 142(A)(1) and 352. The grounded conductor brought to service equipment shall be routed with the phase conductors and shall not be smaller than specified in Table _____ when the service-entrance conductors are not larger than 1100 kcmil copper. A. Typically, the ground wire connects to the outer casing of electrical boxes, appliances, or tools. Go To Full Code Chapter. 24(C)], you don’t have to install an equipment grounding conductor within PVC conduit containing service-entrance conductors [250. com/bonding. The grounded conductor brought to service equipment shall be routed with the phase conductors and shall not be smaller then specified in Table _____ when the service-entrance conductors are 1,100 kcmil copper and smaller. 250-92, 260-64(a) and (b), and 250-120(a). Explore a searchable database of US construction and building code. Study with Quizlet and memorize flashcards containing terms like A ? is a conductor installed on the supply side of a service or separately derived system to ensure the required electrical conductivity between metal parts required to be electrically connected. 140 shall be permitted to be connected to the grounded circuit conductor. For service entrance conductors larger than 1,100 kcmil copper or 1,750 kcmil aluminum, you must size the grounded conductor at least 121/2% of the area of the largest ungrounded phase conductor. The continuity test ensures that the equipment grounding conductor is electrically continuous. 16. The neutral carries the unbalanced load back to the source. Feb 13, 2018 · 250. 250,000 circular mils. 250-32(f). That conductor is required to be a minimum size of 8 AWG copper and need not be larger than 3/0 AWG copper. 23(C) Grounded Conductors. The following Sep 10, 2023 · Equipment grounding conductor connections in grounded systems. Size the grounding conductor according to Table 250-122, and install in accordance with Secs. Some verbiage changes have taken place with regards to this article concerning the grounded conductor. 24(C)" Sep 27, 2021 · The GEC, at the building or structure’s service, is terminated on the neutral bar within the electrical service equipment alongside the grounded (neutral) conductor. Look at 250. c) equipment bonding. 24(C) Grounded Conductor Brought to Service Equipment • Where an ac system operating at less than 1000 volts is grounded at any point, the grounded conductor(s) shall be run to each service disconnecting means and shall be bonded to each disconnecting means enclosure. (a) 250. Exception: If two or more service disconnecting means are located in a single assembly listed for use as service equipment, it shall be permitted to connect the grounded conductor (s) to the assembly common grounded conductor (s) terminal or bus. 64(A) – Grounding Electrode Conductor Installation in Aluminum or Copper-Clad Aluminum Conductors 250. 24 (C) Grounded Conductor Brought to Service Equipment. 24 I see 250. Sizing grounded conductors Mar 18, 2024 · a) equipment grounding. 5. Feb 28, 2021 · Services Scope. 250. (T or F) True. 27. 3 (B) and 250. In fact, it may not even be grounded. 122 for a 250A protective device (must use the next larger or 300A). The grounding electrode conductor c. 68(C)(3) – Grounding Electrode Grounded Conductor Brought to Service Equipment. The grounded conductor shall not be smaller than the minimum size as required by 250. b) grounding. 16 (d) 430. This service only supplied 3-phase industrial loads that did not use a grounded neutral conductor. If the ungrounded service -entrance conductors are installed in parallel in two or more raceways or cables, the grounded conductor shall also be installed in parallel. d) bonding . 1: The frames of ranges, wall-mounted ovens, counter -mounted cooking units, and clothes dryers under the conditions permitted for existing installations by 250. The conductor must be large enough to carry the fault current. suitable for use only as service equipment. (2) All meter enclosures are located If the ungrounded service -entrance conductors are installed in parallel in two or more raceways, the grounded conductor shall also be installed in parallel. 5' high, 30" wide, and extend at least __________ feet in front of the panel. The IEEE Emerald Book recommends the use of equipment-grounding conductors in all circuits, not relying on a raceway system alone for equipment grounding. The grounded conductor on a service that is grounded at any point must be brought to the service disconnect (s) {250. 404(b)(1)(iii)(D)] Perform this test on all cord sets, receptacles that are not part of a building or structure's permanent wiring, and cord- and plug-connected equipment required to be grounded. Step 3: Select the proper size neutral conductor per Table 310-16. When grounding is accomplished through a resistor, an impedance device, or a surge arrester, the grounding is considered to be solid. Section 250. 8 and 250. Term. e. 42 (C) Grounded Conductors. If installed according to the 2014 NEC, would a grounded conductor be required to be run to the service equipment? A main bonding jumper is the connection between the grounded conductor and the equipment grounding conductor and is located at a separately derived system. 3. • The 2011 NEC added wording to make it Jul 5, 2019 · i. Generally, the NEC requires only one equipment grounding conductor per circuit, which can be any type specified in this section. ( iv) Replacement of receptacles shall comply with the following requirements: ( A) Where a grounding means exists in the receptacle enclosure or a grounding conductor If circuit conductors are spliced within a box or terminated on equipment within or supported by a box, all wire-type equipment grounding conductor(s) associated with any of those circuit conductors shall be connected within the box or to the box in accordance with 250. 102(C)(1) for sizing the grounded conductor. 24(C) (1) and (2), the minimum sizing of the grounded conductor brought to service equipment is spelled out. Equipment and Safety Grounding. 4 have mandatory application. Where an ac system operating at 1000 volts or less is grounded at any point, the grounded conductor(s) shall be routed with the ungrounded conductors to each service dis-connecting means and shall be connected to each disconnecting means grounded conductor(s) terminal or bus. Journeyman Electrician. 24, 250. Grounding Electrode System. 2 General. The grounded conductor (s) shall be installed in accordance with 250. A (n) ? is a premises wiring system where power is derived from a source of electric energy or equipment other than a service. 24 (A). L1 = 112A, L2 = 110A, and L3 = 106A. 24(C) (1) states that this conductor shall be smaller than the required grounding electrode conductor specified in 250. If the latter, and given that this is a service, my inclination would be to go with a 3/0 bare copper ground conductor in accordance with Table 310. Its function is to keep your equipment as close as possible to ground potential and provide a safe path for ground-fault current to flow. GeneralNumber of Services. Where an ac system operating at less than 1000 volts is grounded at any point, the grounded conductor(s) shall be run to each service disconnecting means and shall be connected to each disconnecting means grounded conductor(s) terminal or bus. Item 6. STEP 2. Informational Note: See Figure 230. 102(C)(1) b) 250. Scanning through 250. Connections on the load side of the service disconnecting means are not Feb 26, 2024 · 5. application must be at least 6. EGCs VS. The general rule of routing circuits is outlined in NEC Sections 300. Lightning Protection System. High-impedance grounded neutral system connections shall be made as covered in 2. 184 or 250. According to the NEC, the working space in front of a service entrance panel in a residential wiring. 5(I), 250. grounded circuit conductor for grounding equipment. , Equipment grounding conductors, grounding electrode conductors, and bonding jumpers shall be connected by _____. 118 (A) Permitted. The requirements in these sections call for all conductors of Jun 21, 2011 · Because the service neutral conductor provides the effective ground-fault current path to the power supply [250. Where an ac system operating at 1000 volts or less is grounded at any point, the grounded conductor(s) shall be routed with the ungrounded conductors t o each service disconnecting means and shall be connected to each disconnecting means grounded conductor(s) terminal or bus. Aug 7, 2020 · But, the main bonding jumper, one of the most critical elements in the grounding system, connects the equipment grounding conductor, the service grounded conductor, and the grounding electrode conductor at the service, closing the fault circuit. If you're referring to the grounded conductor or neutral being brought to the service disconnect then it should comply with 230. 0. 20 B. Photo 1. Nov 14, 2023 · The subject of this question pertains to electrical engineering, more specifically to the concept of grounding and parallel circuits. 9(c) in standard C22. 122 (c) 310. When installed in a single raceway, the grounded conductor cannot be smaller than the grounding electrode conductor selected from Jul 1, 2000 · You use an equipment-grounding conductor (EGC) to ground the noncurrent-carrying metal parts of equipment. Make the connection on the supply side of the service disconnecting means, i. 24 (D) (1) through (D) (4). Jun 6, 2018 · NEC Article 250. d) 430. The size of an aluminum grounding conductor that will be brought to the service should be A. , Alternating-current systems of 50V to 1,000V that supply premises wiring systems shall be grounded where the system is three-phase Aug 9, 2017 · 250. Sep 18, 2020 · One of your goals as you are installing or designing an installation is to NOT ever have current on your equipment grounding conductor. The branch circuit wiring method shall include or provide an equipment grounding conductor to which the grounding contacts of the receptacle or cord connector shall be connected. The equipment grounding conductor may run with or enclose the circuit conductors. The correct answer is (b) bus. (C) Grounded Conductor Brought to Service Equipment. 1. It basically says if the system is grounded that the grounded conductor must be brought to the service equipment. Connect all equipment grounding conductors spliced or terminated within the box. no equipment ground. A grounding electrode conductor shall be used to connect the equipment grounding conductors, the service-equipment enclosures, and, where the system is grounded, the grounded service conductor to the grounding electrode(s) required by Part 2. Part I. Where equipment grounding conductors (EGCs) are installed for parallel feeders, the NEC seems to contradict itself repeatedly. Equipment Grounding Conductor (EGC): Table 250. 019 (see text immediately above) clearly articulates this fact. (A) Insulation. 500 kemi D. 4. 24(C) Grounded Conductor Brought to Service Equipment and immediately below in (C)(1) is a reference to 250. If you only have a three wire system then one of those conductors is the grounded conductor or you have an ungrounded system. [250. Separately Derived System. The size of the grounded conductor in each raceway shall be based on the total circular mil area of the parallel ungrounded conductors in the raceway, as indicated in 250. Jan 16, 2007 · Where equipment grounding conductors are installed with paralleled feeder conductors, the requirements in 310. Such systems have no direct connection from circuit conductors of one system to circuit conductors of another system, other than those established through bonding or grounding If an ac system is grounded at any point and is provided with a grounded conductor at the service point, a grounded conductor (s) shall be installed and routed with the ungrounded conductors to each service disconnecting means and shall be connected to each disconnecting means grounded conductor (s) terminal or bus. Jul 26, 2018 · Occupation. NEC Table 250. Grounding is not done in order to clear ground-faults. Before you can understand the grounding of an electrical service and equipment, you’l Oct 11, 2006 · The grounding electrode conductor and grounding electrode tap must comply with (a) through (c). If there is a ground fault on a feeder or branch circuit, the fault current will be carried on the EGC back to the service, then onto the main bonding jumper to the grounded conductor going back to the utilities. It’s the neutral because of where it is derived from, namely the neutral point of the system. 122 (F), a brief review of the rules in 300. Each other b. The neutral bar is bonded (connected) to the service equipment enclosure through a main bonding jumper which in turn creates an effective ground-fault current path for the Nov 21, 2017 · Let’s start with the neutral conductor. A May 14, 2024 · Section 250. Although it's rather simple component, an equipment Go To Full Code Chapter. Grounding is the physical connection of building’s grounded service conductor to the ground (earth) for the purpose of limiting any voltage caused by lightning, line surges, or unintentional contact with higher voltage lines. A main bonding The NEC provides the specifications for working space around electrical equipment in Article __________. , A(n) ? is the connection between two or more portions of the equipment grounding conductor. 2 AWG conductor. 4. NEC Section 250-24(c), is a requirement to connect the equipment grounding conductors, the service-equipment enclosures, and where the system is grounded, the grounded service conductor to a grounding electrode. Figure 7. 60 Ex 2] (Fig. Mar 2, 2021 · But let’s first look at what constitutes an equipment grounding conductor (EGC) and how it differs from the oft-misunderstood grounding electrode conductor (GEC) that connects noncurrent-carrying metal parts of the electrical service to the electrode buried in the earth. a. This grounding electrode system is made up of conductive objects in direct contact with the earth as spelled out in Part III of Article 250. Dec 1, 1999 · You can determine the neutral conductor size by: Step 1: Determine the load on each phase conductor. The main components of this effective ground-fault current path are made up of the equipment grounding conductors such as bonding jumpers (main, system, supply-side, equipment) and service or system grounded conductors. (C) Grounded Conductor Brought to Service Equipment Where an alternating current system running at less than 1000 volts is grounded at any point, the grounded conductors will be run to each service means of disconnecting and will be routed with the ungrounded conductors to each means Dec 9, 2020 · The main bonding jumper shall connect the grounded conductor to equipment-grounding conductors and the service entrance enclosure via the grounded conductor’s terminal or bus. The effective ground-fault current path must also be of the lowest possible impedance. 17. 122 displays the minimum conductor size for grounding raceways and equipment based on the ampere rating or setting of the circuit’s overcurrent protective device. False. 2(A) through (D). 28. A main bonding jumper shall be a bus or similar suitable conductor. , When two conductive parts are connected Jul 1, 2021 · In a solidly grounded system, a grounding conductor must be connected only to a grounded service conductor (to a neutral conductor brought to the service equipment from the solidly grounded power supply source). 61 whichever is greater (sized no smaller than the grounding electrode conductor or calculated load) On a utility supplied service there is no need for a ground ing Overhead Service-Drop Conductors, then slide down to Section 230. (B) Systems Without a Grounded Conductor at the Service Point. Reviewing these definitions should help you understand that service conductors originate at the serving utility (service point) and terminate on the line side of the service disconnecting means (service equipment). What type of bonding jumper connects two or more portions of the equipment grounding A grounding electrode conductor shall be used to connect the equipment grounding conductors, the service equipment enclosures, and the grounded service conductor to the grounding electrode(s). The grounded conductor is the one that is intentionally grounded. Grounding is a process whereby a conductor can be fixed at zero volts by connecting it to the earth with a good conductor. When something is “grounded” in accordance with the NEC ®, it is connected to ground or to a conductive body that extends the ground connection. Electrically A main bonding jumper shall connect the grounded conductor (s) to each service disconnecting means enclosure. If you use a metal conduit to protect a grounding conductor, you must bond it to the conductor at both ends. Study with Quizlet and memorize flashcards containing terms like Equipment grounding refers to connecting the normally noncurrent carrying metal parts of equipment to the system grounded conductor and/or _____. Exception No. For the purpose of 230. Calculate the cross-sectional area of the upsized equipment grounding conductor by multiplying the size ration times the cross sectional area of the standard size equipment grounding conductor taken from Table 250. 122, but may be required to be sized larger to ensure adequate capacity. Location ― A grounding electrode conductor must connect the service neutral conductor to the grounding electrode at any accessible location, from the load end of the overhead Jan 11, 2022 · Section 250. Surge Protection Devices (SPD) (formerly called TVSS) 1. Q2: The grounded conductor brought to service equipment shall be routed with the phase conductors and shall not be smaller than specified in Table _____ when the service-entrance conductors are 1,100kcmil copper and smaller. 148(A) Connections and Splices. 2 only . Code Change Summary: Clarifications were made to NEC ® Table 250. 26. In electrical installations, the EGC is a conductor that connects the non-current-carrying metal parts of equipment, raceways, and other enclosures to the system’s grounding electrode or electrodes. A building or other structure served shall be supplied by only one service unless permitted in 230. bonding C. 2. grounding B. 250-24(b)(1) and Table 250-66. Jul 16, 2013 · The answer could be found in Rule 10-204 (2) of the CE Code. bonded neutral service equipment. 66 when the service-entrance conductors are 1,100 kcmil copper and smaller. #2. The grounded conductor brought to service equipment must be routed with the phase conductors and should not be smaller than specified in Table 250. 2(A) and (B). James Stallcup Sr. Exception 1: Where the system bonding jumper [250. 66 (b) 250. It provides a low-resistance path for fault currents to flow into the ground in case of a fault or equipment failure, minimizing the risk of electric shock to individuals who come in contact with the equipment. Such systems have no direct electrical connection, including a solidly connected grounded circuit conductor, to supply conductors originating in another system. 24(B) Main Bonding Jumper For a grounded system, an unspliced main bonding jumper shall be used to connect the equipment grounding conductor(s) and the service-disconnect enclosure to the grounded conductor within the enclosure for each service disconnect in accordance with 250. 2020 NEC Significant Code Changes Part 1 250 – Grounding and Bonding 250. none of these, A conductor installed on the supply side of a service or within a service equipment enclosure, or for a separately derived system, to ensure the required electrical conductivity between metal parts required to be electrically connected is known as the "_____" A. supply-side bonding jumper B Feb 28, 2021 · Grounded Conductor Brought to Service Equipment. The grounding conductor is commonly known as a “ground conductor” or “case ground. It’s not just another “ground conductor. 24(C) Grounded Conductor Brought to Service Equipment. 40, Exception No. This conductor shall be sized in accordance with Table E3603. Study with Quizlet and memorize flashcards containing terms like Grounded electrical systems shall be connected to earth in a manner that will _____. A connection between the one or more equipment grounding conductors brought into a nonmetallic outlet box shall be so arranged that a connection of the equipment grounding conductor can be made to any fitting or device in that box that requires grounding. 24(C)(1)&(2) Grounded Conductor Brought to Service Equipment. Jun 10, 2003 · Ungrounded 480V distribution has been known for serious ground-overvoltage problems for close to 50 years. Is a grounding conductor allowed to be connected to the metal non-current carrying enclosure of the service equipment? In a solidly grounded system, a grounding conductor must be connected only to a grounded service conductor (to a neutral conductor brought to the service equipment from the solidly grounded power supply source). 1. 66 and Table 250. This article covers service conductors and equip‐ ment for control and protection of services and their installa‐ tion requirements. M. GECs. Equipment grounding is a safety measure to prevent electric shock. 24 (C) Grounded Conductor Brought to Service Equipment Where an ac system operating at less than 1000 volts is grounded at any point, the grounded conductor(s) shall be run to each service disconnecting means and shall be connected to each disconnecting means grounded conductor(s) terminal or _____. 24 (C) (1), but Mar 1, 2021 · For sizing a grounding electrode conductor (GEC) for a single service, the grounding electrode conductor is required to be sized in accordance with 250. This is very poor, short-sighted thinking. Jul 26, 2018. Mar 16, 2008 · Wire-type equipment grounding conductors must be sized according to the minimum values in 250. 23 requires that whenever a service is derived from a grounded neutral system, the grounded neutral conductor must be brought into the service entrance equipment and bonded to the equipment enclosure and ground bus, even if the grounded conductor is not needed for the load supplied by the service. It must be one or more than one or a combination of the following: The type of grounding electrode 15. Where an ac system operating at greater than 1000 Sep 27, 2023 · An exception establishes the non-requirement of connecting the equipment grounding conductor permitted in Section 250. This restriction applies on the load side of the grounding point at the service equipment, or the point where the main bonding jumper connection is made in the service equipment. 24(A)(5) restricts load-side grounding connections to the grounded conductor. 146(D) to the rest of the equipment grounding conductors or the box. 134 (B) is in order. 23 is Subsection 230. 52 Aug 2, 2023 · Section 250. 25 – Grounding Systems Permitted to Be Connected on the Supply Side of the Disconnect 250. Dec 18, 2019 · Dec 18, 2019. Here, 112A requires a No. MikeHolt. A properly sized EGC protects. 24(D)] Article 250. 30(A)(1)] is a wire or bus bar, the grounding electrode tap can terminate to the equipment grounding terminal, bar, or bus on the metal enclosure of the separately derived system. 3. 2 No. 4 and 250. A main bonding jumper shall May 1, 2021 · 4. suitable for use as service equipment. Rule 10-204 (2) “ Where the system is grounded at any point, the grounded conductor shall: (a) be run to each individual service; (b) have a minimum size as specified for bonding conductors in Table 16; (c) also comply with Rule 4-024 where it serves as the neutral”; This Code Apr 2, 2018 · Apr 2, 2018. A Grounded Conductor is defined as a system or circuit conductor that is intentionally grounded. A main bonding jumper shall connect the grounded Apr 21, 2008 · In 250. A premises wiring system whose power is derived from a source of electric energy or equipment other than a service. 24 (C)} and sized per 250. 24 Grounding, Service Equipment – https://www. 134(B), 250. 64(B)(2) and (B)(3) – Grounding Electrode Conductor Protection from Physical Damage 250. A Neutral Conductor is defined as the Jan 1, 2000 · To satisfy this rule, you must size the grounded neutral conductor as large as the grounding electrode conductor, per Sec. L1 = 112A. The GEC shall be used to connect the EGCs, the service equipment enclosures and where the system is grounded, the grounded service conductor to the grounding electrodes. At the end of Section 230. 102(E), and 300. 66. 122 rules the sizing of equipment grounding conductors. The nuetral conductor, A grounding fault is described as an unintentional _____. Switchboards marked as “for use only as service equipment” bring the neutral busbar factory-bonded to the enclosure. In electrical systems, it's essential to ensure personal safety and prevent electrical Grounding and Bonding, Level 2 Lesson 3. Image used courtesy of Lorenzo Mari . 186 (A) (1) through (A) (4). As an example, take a 480V, 3-phase, 4-wire, 2000 May 2, 2022 · A grounding conductor is defined as a wire or conductor intentionally connected to the earth. 66 is used for sizing grounding electrode conductors for alternating current systems. Grounded conductors shall comply with 2. 148(A) through (D) (A) Connections and Splices. permanently grounded-service equipment D. B. 102 (C) or 220. Step 2: Calculate the maximum unbalanced load. One “reason” for not wanting Y-grounded service is that NEC 230-95 ground-fault protection is required, and that costs a bit more money. 186 (A) (1) or (A) (2). In an electrical system, each of the service entrance conductors has an area of 750 kcmil. 3(B), 300. Electrical Engineering questions and answers. The size of the grounded conductor in each raceway or cable shall be based on the total circular mil area of the parallel ungrounded conductors in the Jan 13, 2020 · 250. A) Bus B) Conductor C) Electrode Sep 1, 2001 · Service equipment does not include the metering equipment, such as the meter and/or meter enclosures (Sec. This is why the grounding conductor is also called a case The grounded conductor (s) shall be installed in accordance with 250. 50. 230-66). The grounded conductor, if insulated, shall have insulation that is (1) suitable, other than color, for any ungrounded conductor of the same circuit for systems of 1000 volts or less, or impedance grounded neutral systems of over 1000 volts, or (2) rated not less than 600 volts for solidly grounded Apr 20, 2016 · When you look up Conductors, then Grounded you will find the first reference given is Alternating current systems, 250. 24(B) requires that “an unspliced main bonding jumper shall be used to connect the EGC and the service disconnecting enclosure to the grounded conductor” and section 250. Equipment grounding conductors are required to be run with circuit conductors. 23 Size and Rating. 24(E) states that the GEC is used to connect the EGC, the service enclosure(s)and, if used, the system grounded conductor to the grounding electrode system required later in Article 250. Where an ac system operating at 1000 volts or less is grounded at any point, the grounded conductor(s) shall be routed with the ungrounded conductors to each service disconnecting means and shall be connected to each disconnecting means grounded conductor(s) terminal or bus. To develop an understanding of the requirements in 310. 230. Equipment Grounding Conductors. 250 kamil 16. I gather they are relying on the shield for grounding. As defined in Article 100, the Grounding Electrode Conductor is used to connect the system grounded conductor or the equipment to a grounding electrode or to a point on the grounding electrode system. Some grounded conductors are also neutral conductors. €. "The Grounded Conductor shall not be less than the Minimum Size as required by Section 250. 7 of 43. 122 “Grounding Electrode Conductor is run from the service equipment to one of the grounding electrodes that are bonded together. #4. ei kp xc xm oz yl dg cq ii lq