No communications power supply shall be mounted on poles except by permission of Utility. /Pages 167 0 R 0000050346 00000 n NESC 234 CLEARANCES TO OTHER STRUCTURES Cables 300 V or less need to be a minimum two feet over the street light. 0000048589 00000 n Get monthly updates from Schneider Electric delivered right to your inbox. Rule 2-312 "Transformer working space" was added to clarify that 1 m of clearance is required for transformers larger than 50kVA, but only on the side requiring access to conductor connections. 230 0 obj <>stream Join your peers on the Internet's largest technical engineering professional community.It's easy to join and it's free. A. Some fuel gas utilities require 3' from inside meters and 12" from outside meters. Entities seeking to install their antenna(s) onto SCE poles shall comply with SCE standards and General Order (G.O.) It is best to hire an expert when calculating such levels of distance. 394Pq{j2GoAK7O<2}U?p$($8/_^X&x;hl~$kYD endstream endobj 66 0 obj <> endobj 67 0 obj <> endobj 68 0 obj <>stream Customers and developers will be able to landscape around the cabinets, subject to required safety clearances and access requirements. Refer to 094675 listed in the reference documents on Page 3 for the SmartPole metering options and requirements. What is the minimum clearance requirement for EX transformers? New or additional attachments to SCE poles shall not be made except when permission is granted by an authorized SCE representative. 0000047650 00000 n Issue:Clearances vary with type of Transformer installed, Environment:Applies toLow Voltage Transformers by SquareD/Schneider Electric, Cause:Transformers produce heat in operation, so must have clearance to obstructions. 11235-E San Diego Gas & Electric Company San Diego, California Canceling Original Cal. /Height 1232 0000049124 00000 n However, some manufacturers require specific clearances around transformers. All underground substructures and conduits placed in known methane gas areas (as identified by the Department of Building and Safety or the developer), shall also satisfy the requirements of the Department's Standard Drawing(s) H-242 and 1-802.2, latest revisions. 0000008148 00000 n 0000009635 00000 n 8. You will receive your welcome message soon. 0000051703 00000 n Start your sales inquiry online and an expert will connect with you. 0000042361 00000 n 8765-E RULE 16 Sheet 4 SERVICE EXTENSIONS (Continued) 4C2 Issued by Date Filed Apr 30, 1998 Advice Ltr. 0.9 Meter (3 Ft) The width of the workingspace in front of the Panel. The clearance may be reduced to 1 foot if the height of the wall does not exceed 2 feet and if the wall thickness does not exceed 1 foot (i.e., planter box). 0000050759 00000 n Re: Working Space around transformers. /Rotate 0 Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Article 450 does not say much about working space. 0000015356 00000 n This clearance must be between 20 and 200 feet above ground level depending on which state you live in. 0000007743 00000 n With so many options available, it can be hard to decide on which casino to use. Look on the transformer for the required clearances, as these are manufacturer's instructions and you must comply with them. 0000047352 00000 n 0000023641 00000 n An ordinary citizen cannot request TS/SCI clearance on their own. This article will define some of the requirements for clearances around a transformer, as well requirements for protecting a transformer from vehicular traffic. Easily find the nearest Schneider Electric distributor in your location. Compliance with 110.26 will not always give you the 3' clearance between the gas meter and electrical equipment that is required by many gas utilities. I'd find the latest version of the NESC and start there. 6T^\eun\#H"Ein$F4+O`Tbj;Vu=!v.D=3C;iA^(jx.\lbE?0-{)K.8Y\i.\9K. 209 0 obj (if 25 kVA or larger), and clearances from ventilating openings. 0000031895 00000 n In addition, applications for underground equipment on private property will no longer be accepted. Any generation system that does not meet these conditions must install a disconnect switch, as required . endobj The sides of the transformer must be clear of all objects (including landscaping) for 3ft, and the transformer should be located 10ft horizontally from doors, windows or fire hydrants. Now, you will be the first to know the updates from Schneider Electric. 0000091727 00000 n The state's ambitious energy policy goals require a robust and well-maintained electric grid, which requires capital expenditures to maintain reliability and to meet compliance requirements. 0000009905 00000 n 0000007473 00000 n 175 0 obj Search topic-related frequently asked questions to find answers you need. 0000049934 00000 n //-->stream startxref This required clearance includes landscaping. 0000051172 00000 n On transformer poles the communication service drops shall be located so that they originate from the messenger on the side of the pole opposite the transformer. (2) Subsurface horizontal transformer (see Table 5 and Table 6 on Page 6). 0000105173 00000 n /Length 454 Fo@(>\a!_Y7 jK$]1Ib4yT C% D'#'I#$? Epoxy Resin Filled Transformers may be mounted directly on the wall, but require 12 inches on both sides, top and bottom. Please let us know here why this post is inappropriate. 0000050641 00000 n The standard height of power lines depends entirely upon the city and state they're in and the types of power lines on the pole. i,q{]D7IvSGdiyJv}CgNj;*0~O>` M1Y A sponsor must request this type of clearance on your behalf. 0000050582 00000 n Normally it applies to switchboards and panels. Unit substation style Transformers require a minimum of 12 inches around the ventilation openings, and local codes may exceed that. /L 1000930 Effective August 2, 2010, new equipment on private property is now required to be installed above ground. 0000007203 00000 n 0000051585 00000 n In this transformer room 2 transformers are located -I think both are dry-type. Load control current transformers must be in the non-sealed area of the service entrance gear. 0000012765 00000 n Note: >> Despite recommended minimum ground clearance levels starting at 12 feet, industry standards now lean toward 35 feet or higher. A series of bollards located around the transformer, spaced no greater than 54 on center, and located 36 away from transformer are required. Section 4.10 Required Vegetation Clearances (PDF, 5.3 MB) Tree Planting Matrix Tables (PDF, 5.3 MB) . 0000012034 00000 n 174 0 obj No. hbbd``b`$C`9$Ab 0 n#4?c7 Its purpose is to assist electrical contractors, engineers, architects, and manufacturers engaged in the installation of electrical service wiring and equipment. 0000105081 00000 n /Annots [ 191 0 R 195 0 R 197 0 R 199 0 R 201 0 R 203 0 R 205 0 R 207 0 R ] 0000095348 00000 n )%-#+RM]CSK[gA>~ #3. << We empower all to make the most of their energy and resources, ensuring Life Is On everywhere, for everyone, at every moment. Utility company transformers located on a site must also be located a minimum of 48 from fire hydrants. Introducing a bold, new digital ecosystem and an open, global community of innovative problem solvers. 184 0 obj <> endobj "EA@>d6/P l.`vWHa` D.| 5. >> The Non-SCE Antennas Placed on Distribution Poles Manual provides standards for use by entities seeking to purchase or lease space from SCE for the purpose of installing antennas on distribution wood poles with energized conductors (up to 33 kV). 0000091825 00000 n NESC TABLE 232-1 VERTICAL CLEARANCE OVER SURFACES MINIMUM ACCEPTABLE CLEARANCES NESC TABLE 235-5 VERTICAL CLEARANCE AT SUPPORTS NESC 235C2b(1)(a) SAG RELATED CLEARANCES . 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