00x24. One #3 CU with bond bushing through one of the paralleled conduits to the CT cabinet. Manufacturer: East Coast Panelboard | Catalog # CTJ-800R-A-G | Cooper Electric Part # 1364396. 26 of the National Electric Code (latest revision as adopted by the states of Michigan and Wisconsin). $8260. Wire is 500 copper. basically a split-bolt with a stud attached. I have installed a 600 amp ct cabinet , it is on a fence and the wires (parallel 350 AL 4/0 neutral) enter a gutter in pvc conduit and terminate in tap tap blocks (polaris style 4 port) From there 250 AL 3/0 neutral enter 200 amp service rated transfer switch /disconnect. State Electrical Inspector (Retired) Nov 6, 2007. Do I need to bond the neutral to the can in the CT cabinet in this situation? Every CT cabinet ive Oct 31, 2007 · Location. 800 amp residential service - Page 2 - Electrician Talk - Professional. Regrds. davidbeach (Electrical) 6 Mar 08 17:59. Use a 5/16" (8 mm) wrench or nut driver to loosen screw. 00, Gray, Steel. (D) Service with Multiple Disconnecting Means Enclosures. If this is present, you do not need to run a ground between the can and the service disconnect. A lug of correct capacity will be added to a pass-thru bolt and will allow the customer to connect on the outside of the CT cabinet. Glastic Isolation Pad Kit for XDR/BHRR Series 2-Post Racks. Combo Options: Breaker or fuse pullout (available at 400 Amps) Breaker Combos: Single 400–1200 Amps or 2/200 Amps breakers. Ratings are 400 – 4000 amp 600 volt, 3 phase 4wire, and 1 phase 3wire, NEMA 1/3R dual rated and Isc ratings of 85KA RMS symmetrical with no cable lashing required. Description. Catalog#: A363611HCT. Service Applications - Customer Service Center 1. 250. #18. 1. Grounding Terminal: A compression terminal block, commonly colored green/yellow or green, that grounds to DIN rail if installed or backpanel. ”. Strip the neutral (s) a few inchs and run thru the stud kerney. Mar 17, 2015 · As it stands I would say the installation would be a violation of 310. Catalog#: A242411CT. For Delivery. If they want to pull the NESC card, it would also require bonding. Added Note 6. Current Transformer Hinged Cover, 36. The service will definately be metered but at 5 amp instead of 400. 118 raceway or a conductor. (Please contact factory for higher Ratings) Sep 23, 2021 · There is a hole enabling you to bolt it to an appropriate backpanel or enclosure stud. (A) Supply-Side Equipment. Mechanical lugs provided for three-phase line Feb 13, 2022 · Bonding ct cabinet. Knockouts / Hubs: 2. Ct Cabinet Wiring Diagram Source: www. CT Cabinet Minimum Dimensions Less Than 600A 14” x 32” x 40” 600A to 800A 14” x 32” x 54” Greater Than 800A Contact Cooperative. He ran his grounding electrode conductor to the main panel. Combo Disconnect Cabinets. 1 mm x 17. #2 was a screwup. D oors are overlapping with no center post. My company will install a meter Nov 23, 2005 · Location. Includes 12 gauge painted steel panel. #4. ct cabinet ct cabinet most folks here use what I think is called a "stud kerney". Nov 30, 2006 · Frequently the neutral isn't bonded to the CT can. cedgreentech. The Neutral and ground bond is in the main CT Cabinet Double-Door with Steel Foot-Mount Panel Type 3R. Bonding jumpers connect the bonding bushings to the grounded conductor / neutral. Mar 10, 2015 · Occupation. Usually just a two position lug bolted to the side of the cabinet (where I’ve seen most guys land their ground rod conductor). The can would be bonded to the service grounded conductor. 77x 35. The unobstructed space required in front of meter cabinets, CT compartments, and transformer loss compensation cabinets shall be as defined by the “Working Space About Electrical Equipment” section 110. 64 Grounding Electrode Conductor Installation. wilm,de. At the first place, where you can easily connect or disconnect this grounding. 48" H x 48" W x 12" D Outdoor Mounting (NEMA 3R) Table 5. 10. Fort Walton District 1. 66 to a ground ring. Revised the title. At the CT cabinet bond the cabinet enclosure to your ground ring keeping the natural floating and call it a day. If you are talking about dirt/grounding electrodes, that connection can be made anywhere from the service point to the main panel (service disconnect). In that case, our POCO requires a #6 ground to a driven rod, or to the grounding electrode system if nearby. Massachusetts. 72" H x 48" W x 12" D Indoor Mounting (NEMA 1) Table 6. On the load side of the transfer switch /disconnect features. To the left of the CT can (out of picture) is the meter and a #4 ground wire from there goes to the ground bar in the can. Use strong clamps with sharp bite or teeth to ensure a good metal-to-metal connection (Helpful Tip: for complete confidence in the connection, sand off all painted surfaces). Added new Note 6: ground movement protection. #1. invert cable connections for service connection at top. For services, this confirms that Grounding: PPL EU does not permit grounding of the customers grounding electrode conductor in the meter base. It is used to provide a visible break and visible ground on 600 A network and distribution systems without having to remove 600 A terminations and move heavy cable. Catalog#: A800HCT1R. It doesn't make sense to base it on the service main breaker size since it is upstream of that. SOP in these parts. Warning. 2 parts found. T. 2/0 to CT cabinet. I argued that I have no authority once the Sep 15, 2013 · Ct cabinets and grounding. May 12, 2015 · 3830 posts · Joined 2010. Will be using 2 ground rods 10' apart. Conduit Booklet - Baltimore Gas and Electric Company May 12, 2021 · Justrite uses airplane cable. Panama City District 1. 11. Rack Busbar Insulator Binding Block, Made of durable, nonconductive white Delrin®, 3/4”H x 11/16”W x 1-1/4”L ,(19. There is a 6-lug ground bar located in the CT can that a #4 ground wire from each disconnect goes to. The CT cabinet must be bonded. 75 in, 277/480 VAC, HMI 7", UL508A. Attach the ground wire and retighten screw. His argument was the ct cabinet was the power co. Many current transformer cabinets are of metallic composition. Microsoft Word - Metering Handbook w_BlanksForDrawings 040809. A NiSource Company ® Electric Rules Standard Reaffirmed: Published: ER 3-110-G 5 CABINET Jun 1, 2019 · What is the correct way to do a 400 amp service with 2 200amp panels? Or a 600 amp with 3 200amp main breaker panels? Do I need a gutter above the panel with taps, or can I run 3/0 from each panel to the whether head? What about grounding and bonding two or 3 main panels? The service in Sep 22, 2023 · 250. coop. I have installed a common grounding busbar on the wall. Hoffman A800HCT1R Current Transformer Cabinets, 400-800 Amp, Type 3R, 35. This drawing illustrates FECC requirements only, and is not intended to be a comprehensive guide for the CT Cabinet Screw-Cover Type 3R, 24. Although it is posiible that if you "float" the grounded conductor in the C/T can you could use Bonding Terminal Blocks. I have installed a 2/0 Cu bond in the CT cab from the cabinet to the grounded circuit conductor. 75 inches. 2. Jun 13, 2018 · The CT cabinet and main disconnect are located in the basement of the building. As I read 250. Florida Power & Light Northwest Metering Services Department 1. Designed for use as a current transformer cabinet or panel enclosure applications. Check Details Feb 22, 2008 · Feb 21, 2008. This cabinet can also be used as junction or service boxes and house meter, transformer, relay or terminal assemblies. A. only one service allowed per lug. Replace Note 5 (external ground rods) with old Note 6. Ct Cabinet Wiring Diagram Source: i. The CT cabinet will be grounded by the grounded service conductor terminated within it. 122 between the CT cabinet and the service disconnect all you will have done is provide a parallel path for imbalanced neutral current. All CT cabinets are "bussed / lugged" with CT mounting rack included. Nov 14, 2012 · Paralleled 3/0 service entrance conductors feeding a 400A service disconnect from a CT cabinet. State Electrical Inspector (Retired) Mar 10, 2015. Bollards to be set in a concrete footing as shown in detail below. Cabinets of all three ratings provide adequate protection to workers from inadvertent access to hazardous components. aes-ohio. ENCLOSURE GROUNDING. However, cabinets made of synthetic materials are not uncommon. Hardware to mount a bar-style current transformer is included. CT Cabinet Hinged-Cover, Type 3R provide outdoor protection and security for instrument current transformers, which are frequently required for transformer-rated watt-hour metering. With a height of 16 inches and a width of 12 inches, it has a depth of 6. Compare. In the case of a CT can there would not normally be an EGC run with the circuit conductors. A grounded circuit conductor shall be permitted to ground non–current-carrying metal parts of equipment, raceways, and other enclosures at any of the following locations: 250. In terms of equipment protection, a NEMA Type 1 electrical cabinet is the lowest on the protective scale, is Revised Note 5 : Added that the pole shall be new when installed. Add to Cart. CT Cabinet, Screw-Cover, Type 3R provides outdoor protection and security for instrument current transformers, which are frequently required for transformer-rated watt-hour metering. #7 · May 29, 2015. This ranges between a carbon steel, stainless steel, or galvanized iron with thickness of either 14, 16, or 18 gauge. com/construction Construction control center: 800-424-5578 Rev. Then, bonding bushings may be required, dependent on the wiring method. all tie to utility ground in CT cabinet. all bus bars will be flat to front. Schneider Electric METSEHDPM6HCME7 is a wall-mounted PowerLogic enclosure made of steel. Applications: Used where higher-amperage power is needed in conjunction with a disconnect. SCCR: Up to 65K AIC rating. 00x11. Mar 24, 2012 · Most everything that we call grounding is really bonding. Aug 17, 2007 · 3 phase, 3 wire, 480 volts, 1200 ampere maximum. AND OPERATING HEADQUARTERS. cabinet will be made of 14 gauge steel per nema 3r approved sealable latch. Can I size the EGC to the CT cabinet from 250. Nov 23, 2005. March-21 Replaces: July-19 Report an outage: -00123-1-425 www. The most common method in this area is to bond it by attaching the grounded conductor to the cabinet but it can be bonded by grounding to the service disconnect by 250. Removed CT option drawing from the Exhibit. Cabinets are provided with hinged door and 2. If you run any conductor based on 250. It offers the flexibility of mounting instrument current Electric Service Handbook - Pepco - An Exelon Company Apr 14, 2015 · You only need to bond one end of each raceway. 24(A) was the deal breaker for landing the GEC to the CT cabinet without a main bonding jumper. Jan 24, 2018 · Bond the neutral at the service disconnect location, from the service disconnect location take a conductor based on 250. Side Gutter required for LINE in bottom, LOAD out bottom application (1200A and above). Updated 6/2020. Thread starter arnettda; Start date Sep 15, 2013; Status Not open for further replies. The grounding electrode conductor connection shall be made at any accessible point from the load end of the service drop or service lateral to and including the terminal or bus to which the grounded service conductor is connected at the service disconnecting means. ytimg. Both 600 amp. CT Cabinet, 400-800 Amp, Type 3R (for Window-Type Current Transformers) provide Type 3R protection and a factory-installed wiring buss for 400-800 Amp, 600 VAC current transformers. You can see the GEC go from building steel into the CT cabinet, but I haven't seen CTAT426NCM8CH - Eaton CT Cabinet, SM CT, switch, 600A, Three-phase, 240V, Four-wire If I'm not mistaken, most CT cabinets have a grounding strap between the neutral and the can, similar to a meter socket. 22. cabinet will be furnished and installed by customer. CT mounting interior can be configured for either bar type or window type (donut) CT's. ea. PAGE 3 OF Denotes Revision Document is considered current only when viewed electronically on Company's Intranet. Log in or register to view your price, purchase history, and more! Not Available for Pickup at Lavallette. 122 either of these two ways: 1. Current Transformer Cabinet Free Standing Overhead to Underground Service Figure 13. 66. Current Transformer Cabinets Overhead or Underground, Service Window Type CT’s and PT’s 277/480 Volt Figure 12. Sep 4, 2009 · It might be treated differently in other jurisdiction, but locally the grounding would originate at the disconnect. Here the neutral would be bonded to the CT cabinet and again at the service disconnect. com. Sep 27, 2019 · I am designing a 186kW PV system and need to make the grid connection on the supply side, and am using a CT cabinet. 66 Installing EGC would give you a parallel neutral as your also required to bond in MDP. Welded hinge and pin for non-removable door. Part Number. Use bonding wire while pouring liquids into other containers. Usually available . A Motors, Controllers And Air Conditioners Clarified maximum motor size by type of service Apr 2011 IV, VI Service Equip, Metering Equip Changed manual bypass to lever bypass Jun 2011 Jan 21, 2020 · When it comes to current transformer cabinets, the common NEMA standards NEMA Type 1, NEMA Type 3R and NEMA Type 4X. Catalog Number. C over is mounted on galvanized lift-off hinges with stainless steel hinge pins. He had a 400amp main panel with pvc thru the wall to a metal ct cabinet. Per NEC Article 250. In fact, there probably is no OCPD in the circuit upstream of the CT cabinet to operate. Removed CT option from drawing. 92 Services. CT’s Figure 11. Main service is comming into the ct cabinet in pvc, leaving the cabinet to a metal trough also pvc, out of the trough to the 800 amp main panel also pvc. Sep 15, 2013 Mar 6, 2008 · 1. 12 . 5/8” x 8’ copper clad ground rod and clamp required. Includes optional handle kit. doc. The code permits the grounded conductor to be used for all of the bonding on the line side of the service disconnect, but some utilities do no permit you to use the neutral to bond the CT cabinet. Features: Enclosure and cover manufactured from 16 - or 14-gauge G90 galvanized steel. 8x 11", Gray, Steel Hoffman Catalog #A800HCT1R. See Soares grounding book or goggle Soares info on net 10. Size and location by customer when required. by 24" (600 mm) long copper ground bail shall be connected to the ground bus at both ends and located 7" (175 mm) behind the door and 5" (125 mm) above the door sill. 3 phase, 4 wire, Wye 277/480 volts, 800 Ampere Maximum. (Please contact factory for higher Ratings) Cabinets are surface mounted or free standing, suitable for indoor or out door applications. In MA, NH, and RI, ground pads and "jug handles" shall be installed on the equipment ground bus as shown in Figure M-1A. The NEC permits the service grounded conductor to be used for the grounding and bonding of non-current carrying parts on the line side of the service disconnect. Occupation. 10 (H) because that "5th" wire will end up in parallel with the grounded conductor if the grounded conductor is used for bonding in the C/T can (as it typically is in this area). Six required for two CT's / eight required for three CT's 2. • Lugs: Tin plated aluminum, suitable for aluminum or copper conductors and rated for 90°. Two #6 CU, one in each conduit with two bond bushings to the CT cabinet. CT Cabinet, 3-Phase 400-1200 Amp with Lugs, Type 3R, are used in indoor or outdoor applications. Remember the code says that the grounded conductor can be used for the bonding of all non-current carrying equipment on the line side of Jun 2, 2021 · Who can tell me the proper places to ground between CT cabinet and out door panel. 72" H x 48" W x 12" D Outdoor Mounting (NEMA 3R) PPL Electric Utilities reserves the right to require a NEMA 4 Classification (Water Tight and Dust Tight) cabinet if deemed necessary. Retitled the Exhibit. 2/0 to bond the waterline #6 to ground rod. Revised minimum size of support posts to 2 ½ inch. 2 of 5 Justrite cabinets feature grounding lugs that accept antistatic wires to safely ground cabinet to earth ground. Sep 22, 2023 · Thanks for the feedback. Details Resources. I'll have to check on grounding the ct Apr 18, 2023 · Each of the 3 disconnects have their bonding screw installed. Spec sheets for utility-approved cabinets Jul 15, 2009 · I think this answers the question. 24 the grounding electrode conductor point of connection must be accessible, as determined by the authority having jurisdiction based on local conditions such as locked meter socket enclosures. I don't believe I have seen the Neutral terminated inside the CT can itself. (Usually supplied by manufacturer of Cabinet. The sketch below shows how the existing grounding electrode conductor runs from building steel, through the CT cabinet, and (presumably) to the neutral bar in the main disconnect. Revised minimum size support posts to 2 ½ inch. A convenient way to attach ground wires to racks or cabinets and meets BICSI and ANSI/ EIA/TIA two-hole mounting recommendations. arnettda Senior Member. Grounding wire connects drum to earth ground. A 5/8" (16 mm) dia. I have always "split" the ground, bonded incoming conduit, nipple to disconnect and then continued on into first means of disconnect. I quickly looked up table 250. com CT Cabinet (64) Circuit Breaker/ Disconnect… (1) Ct Cabinet (139) Electrical Box/ Enclosure B… (89) Electrical Rack (1) Enclosure Cover (8) Enclosure General Accessor… (61) Explosionproof Instrument … (32) Explosionproof Multipurpos… (4) Floor Mount Console (1) Floor Mount Disconnect Enc… (21) Motor Control Enclosure (3) Please note that other CT cabinets can be used or fabricated if they meet or exceed the eight minimum requirements in Tampa Electric’s Standard Electrical Service Requirements (SESR). Around these parts none of the CT cabinets come factory bonded. $1,990. The cabinets provide outdoor protection and security for instrument current transformers, which are frequently required for transformer-rated watt-hour metering. Check Details. 37 $11136. Hot sequence the neutral block is bonded to the cabinet; cold sequence the neutral must 'float'. This cabinet can also be used as junction or service boxes and house meter, transformer, Schneider Electric METSEHDPM6HCME7 enclosure for PowerLogic HDPM6000, 16 x 12 x 6. • Potential Tap: Included on buss • Grounding lug Most single phase meter cabinets have the neutral already bonded to the cabinet, and from what ive read, the neutral serves as the effective ground fault path from the main disconnect back to the transformer, in lieu of a SSBJ in the PVC conduit. customer to provide equipment bonding jumper per nec article 250. Many fabrication shops such as Arrow Sheet Metal in Tampa, Quality Metal Works in Plant City, and Superior Metal Fabricators in Orlando have all built Dec 30, 2013 · (2) New 600A CT cabinets We installed the 600A services. Thanks Oct 28, 2020 · For current transformer cabinets, the most common materials are galvanized iron, carbon steel, aluminum and stainless steel. 2. Where a service consists of more than a single enclosure as permitted in 230. To it I have: (1) 2/0 Cu GEC from each 600A panelboard Jul 15, 2019 · NEC Section 250. Lugs are sized for #4-600 MCM. 13 : Added that the pole shall be new when installed. Provisions for padlocking on draw-pull catch. Aug 2, 2018 · With this argument, can I short the the secondary sides of current transformer and voltage transformer together on a bus-bar and then ground this bus-bar to create a single grounding point? In fact, these CT and PT have already been installed at the substation and they are grounded, just not at the same point. The purpose of this metallic envelopment is to make an isolated space without electrical potential which would otherwise be harmful to a person to get in contact with. 40167-001 Shown. These cabinets provide an assembly solution for three-phase service from 400-1200 amp line load terminations for each phase and neutral. NJ Sullivan is a custom metal fabrication company and If you're installing 2 sets of 500kcmil as Service conductors, you'll need to use NEC table 250-66 to size the ground conductor in each conduit. Added 400-800A Bussed Bar Type Wall Mount CT Cabinets GE Changed the brand to GE/ABB Eaton Changed the part #1009722 to #1008792CH 3Ø, 4wire, wye with 3 pt's & 3 ct's form 9s meter socket load (bonded) n c b a ct ct ct 120v 120v 120v 208v when equipped with plunger, no test switch is used ct sizes to be determined by load wire no. Replace Note 5 (external ground rods) and add Note 6. Grounding Bar: This refers to a bar that can connect many ground conductors, and is typically attached to the backpanel. This strap effectively grounds the can but is not considered any sort of a bond. I'll have to check on grounding the ct cabinet with the power company but I still need to ground the trough bonding will be done in main panel. Bollards are to be 5 feet above the ground and a minimum of 4 feet below the ground. VI-6a Padmounted CT for Renewable Generation Added specifications for primary metered installations for Renewable Generation interconnects Mar 2011 IX. 24 (A) (1) General. 92. The assembly has a 50 k AIC rating. All metallic items on the line side must be bonded in a manner compliant with 250. Sketch 16. The 600A MB panelboards have a 3/0 Cu main bonding jumper. 00x36. Added ground movement protection. Mar 18, 2024 · 3 phase metering ct cabinet 1500-2000 ampHow to ct with electric meter wiring diagram # current transformer with . Dunkin - Calcutta, OH | Wenger Electric. 14 available. All circuits are usually the same ~ voltage, ground, single component, and buttons. there are many water pipe connectors to bond the GEC to the water pipe i was thinking about the largest size 3/0, shouldn’t have included it in the other post. grounding CT's only in one place , near to CT as possible. It is also an industry best practice to ground the cabinet otherwise. Contacts aes-ohio. 13 : Added that the pole shall be new when CT Cabinets safely enclose current transformers and safeguard them from sleet, falling rain and external ice formation. Learn more about Milbank CT cabinets. 92 (B) is applicable to bonding at services, and in part states, “Bonding jumpers meeting the other requirements of this article [Article 250] shall be used around concentric or eccentric knockouts that are punched or otherwise formed so as to impair the electrical connection to ground. 66 or 250. Includes (2) Glastic Isolation Pads and Hardware, Copper Grounding bars include Glastic Isolation Pads and Hardware. Fig. Height Width. Updated 09-10-2016. 14 /ea. Concrete is to be crowned on top of all bollards. For exterior cabinet grounding, locate the safety cabinet's ground screw just below the green dot on the right hand side of the cabinet. Mar 6, 2012 · The code does not require an EGC for the CT cabinet, assuming that it is on the line side of the service disconnect. The Cleer loadbreak connector system Is fully (b) When such exceptions are encountered, the grounding conductor may be terminated at the neutral bus of a current transformer cabinet. This Main service is comming into the ct cabinet in pvc, leaving the cabinet to a metal trough also pvc, out of the trough to the 800 amp main panel also pvc. Nov 20, 2018 · bonding of CT cabinet bonding of CT cabinet It is pure myth that just because a POCO owns the CT that it can be left unbonded. 142 Use of Grounded Circuit Conductor for Grounding Equipment. 19/ea. Had an electrician argue today about bonding the ct cabinet. 92 (B) it is permissible. The Cleer loadbreak connector system is a 600 A loadbreak device available in ratings for operation on 15, 25, or 28 kV class systems. 40167-050. Tennessee. wire color for 1 yellow c 2 blue c 3 red c 4 green v 5 black v 6 brown v 7 white g/n 8 bare copper g/n c=current, v=voltage, g/n=ground/neutral Sep 13, 2019 · 250. I would like some advice on grounding. Pensacola District 1. #16 · May 3, 2010. Oct 30, 2012 · Most of the CT cabinets in this area are bonded to the neutral. palmetto. When grounding a safety cabinet, you have internal and external considerations to make. Sketch 15a. Jun 7, 2022 · For the CT cabinet you can either Bond it directly with/to the neutral, or you can run an SSBJ to the neutral in the main panel. Compact, Competitively Priced And Readily Available: Combination Six Disconnect Rule Panel With Utility Metering Provision. Techniques such as welding, cutting, and bending are often used in the construction of CT cabinets. They feature durable construction that withstands various external environmental factors. Sep 25, 2010 · 250. Read wiring diagrams from bad to positive and redraw the circuit being a straight range. If not size a conductor using 250. Slava. Ratings are 400 - 1200 amp 240 and 600 volt, 3 phase 4wire, and 1 phase 3wire, NEMA 1/3R dual rated and Isc ratings of 85KA RMS symmetrical with no cable lashing required. Milbank - Bussed CT Cabinets, Termination Cabinets, and Disconnect Combos. There are two ground rods acting as supplementary electrodes to the water main but they are tied to a ground lug bolted inside of the CT cabinet while the neutral bar inside the CT cab floats. The CT can itself must be also be bonded to the grounded conductor / neutral. front view side view 10 We would like to show you a description here but the site won’t allow us. Bonding wire connects can to funnel. Cabinets can also be used as junction or service boxes and house met Features. #2. AxBxC mm. 65 posts · Joined 2010. FLORIDA POWER & LIGHT NORTHWEST LOCAL OFFICES. 71 (A), grounding electrode connections shall be made in accordance with (D) (1), (D) (2), or (D) (3). Re: C. Our standard is to ground the CT circuit at the first terminal block inside the control house. 4-Wire, 3-Phase, OH to OH CT Installation (Above 600A) 95 4-Wire, 3-Phase, OH to OH and OH to UD CT Installation (Above 600A) 96 4-Wire, 3-Phase, Mounting of Meter Cabinet 97 4-Wire, 3-Phase, UD Service using CTs (Above 600A) 98 4-Wire, 3-Phase, CT Padmount Transformer (Above 600A) 99 Grounding conductor per NEC. These cabinets are suitable for use in utility/current transformer metering, junction boxes, wiring boxes and pull boxes. Updated 09-27-2013. Bollards shall be installed with due care to avoid interfering with ground grid and conduits. NOTICE. Connection to the ground rods and any other Jun 25, 2016 · also install a bonding strap or jumper from XO in CT cabinet to cabinet. 3. 122 to confirm that, yes, indeed, 400A only requires an EGC (equipment grounding conductor) of #3. 104 would be bonding, not grounding. Typical arrangement of instrument transformers and mounting for installation in instrument transformer cabinet underground service. Our POCO does not allow GECs in the CT cabinet, just bonding bushings IF required. CT Cabinets • Three-Point Latching Handle & Locking Mechanism: Padlocking handle with three-point latching system allows for easy locking and securing of the unit. AxBxC in. Here, if the metercenter is adjacent to the 600 amp disconnect, and the disconnect has no overcurrent protection, a separate equipment ground is normally not required, (if your distribution has meters, the meters do not normally have isolated neutrals anyway). When testing ground and bond circuits, a resistance of 1 megohm (10 to the 6th power) or less is considered adequate per NFPA 77. Drip shield top and seam-free sides. When we looked at the total cost of everything it was much cheaper to go with the CT cabinet and CT'S because I already won them from another job which had fallen thru. (A) Bonding of Equipment for Services. I was thinking 250. equipment and that they should bond it. The NEC allows the grounding electrodes to any point of the grounded conductor from the service point to the service disconnect enclosure. Also, the ufer ground GEC comes to the can from the house. . Apr 30, 2010 · david wise Discussion starter. $1,836. Current Transformer Cabinets Overhead or Underground, Service Window Type CT’s and PT’s 277/480 Volt Figure 11B. 5 mm x Oct 16, 2009 · When I first go there I noticed there was a #3 awg copper as an equipment ground coming from the service disconnect panel back to the line/supply side CT cabinet. Sep 10, 2018 · The water main is serving as the grounding electrode and the GEC runs from there back to the service disco. The existing 480V service has an 800A fused main disconnect before the MLO panelboard. Current Transformer Cabinet 400A - 4000A WALL MOUNT. ud py fo yp gf mh oc og ah bl