{"id":"ppc-insulators-550-su","name":"550 SU ANSI porcelain station-post insulator","manufacturer":"PPC Insulators","category":"switchgear","description":"550 SU station-post insulator from PPC Insulators. The manufacturer table lists Height (in): 45; Top BCD (in): 5; Bottom BCD (in): 5. Download the source catalogue and inspect the 550 SU column.","equipment":["station-post insulator","550 SU"],"keywords":["550 SU","550SU","ANSI","insulator","station post","switchyard","substation"],"markets":["Global"],"marketNote":"The source table supplies the listed product values. The project insulation, mechanical loading and regional requirements must be checked for the selected installation.","kind":"product","sourceUrl":"https://ppcinsulators.com/download-area/","officialEvidenceUrl":"https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf#page=8","sourcePublisher":"PPC Insulators","formats":["PDF"],"availability":"direct","accessNote":"Download the verified original here. The manufacturer source is linked for revision checks; preview images are for inspection and the original drawing supplies the design dimensions.","checkedAt":"2026-11-03","files":[{"id":"catalogue","name":"PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf","filenameBasis":"source-url","format":"PDF","purpose":"Manufacturer catalogue with 550 SU data and outline references on PDF page 8","url":"https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf","availability":"direct","bytes":1954453,"sha256":"f9dc78cfecc4bbcbac11bd5d9256580b01f684540dd703298c52f7816d12b3b3","retrievedAt":"2026-11-03T01:29:09.780150+00:00","validation":"signature-checked","hosted":true,"redistribution":"unknown","previewPages":[8],"rightsReview":{"checkedAt":"2026-11-03","sources":["https://ppcinsulators.com/download-area/","https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf"],"note":"Current manufacturer download listing and the complete catalogue text were inspected. No explicit reproduction prohibition was identified in this catalogue. Copyright remains with the named manufacturer; no redistribution licence is asserted."},"hostingBasis":{"policy":"no-explicit-prohibition","checkedAt":"2026-11-03","evidenceUrl":"https://ppcinsulators.com/download-area/","attribution":"PPC Insulators"},"delivery":{"kind":"original","name":"PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf","format":"PDF","sha256":"f9dc78cfecc4bbcbac11bd5d9256580b01f684540dd703298c52f7816d12b3b3","bytes":1954453,"includes":["Unchanged official original"]},"downloadUrl":"https://eloragrid.ai/tools/cad-library/download/ppc-insulators-550-su/catalogue"}],"fileClasses":["station-post insulator","manufacturer model-specific table","catalogue outline reference"],"configurationNote":"Use the 550 SU column on PDF page 8. The download is the complete catalogue, not a standalone DWG or STEP part.","applications":["switchyards","substations"],"technicalFacts":[{"label":"Height (in)","value":"45","sourceUrl":"https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf#page=8"},{"label":"Top BCD (in)","value":"5","sourceUrl":"https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf#page=8"},{"label":"Bottom BCD (in)","value":"5","sourceUrl":"https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf#page=8"},{"label":"Leakage Distance (in)","value":"99","sourceUrl":"https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf#page=8"},{"label":"Max Shed Diameter (in)","value":"7.1","sourceUrl":"https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf#page=8"},{"label":"Diameter Dt (in)","value":"6.2","sourceUrl":"https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf#page=8"},{"label":"Diameter Db (in)","value":"6.2","sourceUrl":"https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf#page=8"},{"label":"Cantilever Strength, Upright, Pounds","value":"1700","sourceUrl":"https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf#page=8"},{"label":"Impulse Withstand, kV","value":"550","sourceUrl":"https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf#page=8"}],"partNumber":"550 SU","equipmentFacts":[{"label":"Equipment / resource","value":"550 SU ANSI porcelain station-post insulator"},{"label":"Manufacturer","value":"PPC Insulators"},{"label":"Resource type","value":"Product"},{"label":"Part number","value":"550 SU"},{"label":"Height (in)","value":"45"},{"label":"Top BCD (in)","value":"5"},{"label":"Bottom BCD (in)","value":"5"},{"label":"Leakage Distance (in)","value":"99"},{"label":"Max Shed Diameter (in)","value":"7.1"},{"label":"Diameter Dt (in)","value":"6.2"},{"label":"Diameter Db (in)","value":"6.2"},{"label":"Cantilever Strength, Upright, Pounds","value":"1700"},{"label":"Impulse Withstand, kV","value":"550"},{"label":"Listed file formats","value":"PDF"},{"label":"Listed files","value":"1"},{"label":"Available previews","value":"1 catalogue page previews"},{"label":"Recorded revisions","value":"Confirm the revision with the manufacturer"},{"label":"Source checked","value":"2026-11-03"},{"label":"Download access","value":"Email registration for site downloads; official source links are also available"}],"previewImage":"/tools/cad-library/drawing-preview/ppc-insulators-550-su/catalogue?asset=956023a2c753a3cfba701bd0e5d359d17cee8f44ccae9aa78c2547f1bb988c79","relatedReferences":[{"name":"Switchgear panel","url":"https://eloragrid.ai/objects/switchgear-panel"},{"name":"Switchboard","url":"https://eloragrid.ai/objects/switchboard"},{"name":"Ring main unit","url":"https://eloragrid.ai/objects/ring-main-unit"}],"fileChoiceGuidance":["Download PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf and open PDF page 8. Find the 550 SU column; other tables and model rows or columns describe different insulators. This source is a catalogue PDF. A native DWG or STEP file is not included; use Request CAD for an editable model."],"plainEnglish":{"title":"What the equipment does","introduction":"A station-post insulator supports an energised conductor while separating it electrically from its grounded support. Its end fittings, height and mechanical strength determine how it can be mounted.","example":"When positioning 550 SU on a substation support, use PDF page 8 to compare its mounting interfaces with the structure and conductor connection. The listed Height (in) is 45.","drawings":"Download PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf and open PDF page 8. Find the 550 SU column; other tables and model rows or columns describe different insulators. This source is a catalogue PDF. A native DWG or STEP file is not included; use Request CAD for an editable model.","terms":[{"name":"CAD","meaning":"Computer-aided design files used to prepare drawings and models."},{"name":"Revision","meaning":"The recorded version of a drawing or model."}],"diagram":"flow","steps":["Identify the support position","Match the named reference and fixing","Coordinate the structure and conductor"],"caption":"A simplified explanation of how this item works. It does not show terminal wiring or an operating procedure.","sources":[{"label":"PPC Insulators official source","url":"https://ppcinsulators.com/wp-content/uploads/2017/06/PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf#page=8"}],"profileId":"station-post-insulator","checklist":["For 550 SU, the source records Height (in): 45. Match that value to the conductor-support arrangement.","Compare the 550 SU column on PDF page 8 with the exact fixing or stud arrangement shown in the catalogue; use the dimensions for this exact reference.","The source also lists Top BCD (in): 5. Check the project requirement against the manufacturer’s specified units and conditions.","BCD or PCD is the diameter of the circle through the fixing-hole centres. Compare both top and bottom fixing patterns with the supporting structure and conductor fitting.","Leakage distance follows the insulating surface. It is different from the overall height; use the height value for the physical layout."],"questions":[{"question":"Where is the 550 SU information in this download?","answer":"Open PDF page 8 of PPC_ANSI_Solid-Core_US-Letter-updated-LQ.pdf and find the 550 SU column. The page preview preserves the manufacturer table; the download contains the complete catalogue."},{"question":"Is an editable CAD model included for 550 SU?","answer":"This entry provides the manufacturer PDF reference and its model-specific values. A DWG, DXF or STEP model is not attached; request the exact model and preferred format here."}]},"canonicalUrl":"https://eloragrid.ai/tools/cad-library/equipment/ppc-insulators-550-su"}