{
  "url": "https://openlegislation.uk/restrictive-trade-practices-standards-and-arrangements-services-order-1993/schedule/part-I",
  "json_url": "https://openlegislation.uk/restrictive-trade-practices-standards-and-arrangements-services-order-1993/schedule/part-I.json",
  "legislation": "uksi/1993/2453",
  "legislation_title": "The Restrictive Trade Practices (Standards and Arrangements) (Services) Order 1993",
  "legislation_url": "https://openlegislation.uk/restrictive-trade-practices-standards-and-arrangements-services-order-1993",
  "path": "schedule/part/I",
  "kind": "part",
  "number": "I",
  "heading": "STANDARDS",
  "text": "09—1\nLead sleeves for electric cables (metric units)\nAmendment 1, 1993 to Issue 1, 1970\n09—3\n33kV impregnated paper insulated oil–filled and gas pressure type power cable systems\nAmendment 1, 1993 to Issue 2, 1982\n09—5\n275 and 400kV impregnated paper insulated oil–filled and gas compression type power cable systems\nAmendment 1, 1993 to Issue 3, 1991\n09—10\nPorcelain insulators for 33, 66, 132, 275 and 400kV pressure–assisted cable outdoor sealing ends\nAmendment 1, 1993 to Issue 3, 1976\n09—13\nPerformance specification for high voltage heat–shrinkable components for use with high voltage solid type cables up to and including 33 000 volts\nAmendment 1, 1993 to Issue 1, 1981\n09—16\nTesting specification for metallic sheathed power cables with extruded cross–linked polyethylene insulation and accessories for system voltages of 66kV and 132kV\nAmendment 1, 1993 to Issue 1, 1983\n09—20\nSingle core cables having cross linked polyethylene insulation and lead sheath for rated voltage 19 000/33 000 volts (Um03736 000 volts)\nAmendment 1, 1993 to Issue 1, 1990\n12—3\nOutdoor meter cupboards\nIssue 3, 1992\n12—9\nWiping glands for metallic–sheathed cables\nAmendment 1, 1993 to Issue 2, 1980\n12—11\nIndoor and outdoor cable boxes for switchgear (for service at system nominal voltages of 6.6,11 and 33kV)\nAmendment 1, 1993 to Issue 2, 1981\n12—12\nCompounds for use in 33kV solid type cable accessories\nAmendment 1, 1993 to Issue 1, 1977\n12—14\nImpregnated crepe paper for cable jointing in solid type cable accessories\nAmendment 1, 1993 to Issue 1, 1976\n12—18\nPolyester resin/glass fibre protection boxes and protective shrouds for oil–filled and gas–pressure cable accessories\nAmendment 1, 1993 to Issue 1, 1980\n12—24\nPlastic ducts for buried electric cables\nAmendment 1, 1991 and Amendment 2, 1993 to Issue 1, 1989\n35—1\nDistribution transformers (from 16kVA to 1000kVA)\nAmendment 1, 1993 to Issue 4, 1985\n35—2\nEmergency rated system transformers—33/11.5kV delta/star and star/star connected\nAmendment 1, 1993 to Issue 4, 1982\n35—16\nInterface arrangement for direct connection of gas–insulated metal–enclosed switch– gear to 132kV, 275kV and 400kV transformers\nIssue 1, 1992\n37—2\nLV distribution fuse–boards\nAmendment 1, 1993 to Issue 3, 1990\n41—11\nTubular aluminium busbars, connections and terminal fittings for 132kV outdoor substations\nAmendment 1, 1993 to Issue 2, 1982\n41—24\nGuidelines for the design, installation, testing and maintenance of main earthing systems in substations\nIssue 1, 1992\n41—26\nDistribution switchgear for service up to 36kV (cable connected)\nAmendment 1, 1993 to Issue 1, 1991\n41—27\nOutdoor distribution switchgear for service up to 36kV (overhead conductor connected)\nCorrigendum 1992 and Amendment 1, 1993 to Issue 1, 1991\n43—1\nSurvey and preparation of ground line profiles and plotting of tower positions for steel tower overhead transmission lines at 132kV and higher voltages\nAmendment 1, 1993 to Issue 2, 1986\n43—4\nDesign of foundations for steel towers for overhead transmission lines at 132kV and higher voltages\nAmendment 1, 1993 to Issue 2, 1986\n43—5\nFabrication and galvanising of tower and foundation steelwork for overhead transmission lines at 132kV and higher voltages\nAmendment 1, 1993 to Issue 2, 1986\n43—7\n132kV steel tower transmission lines: specification L4(M) — 1978 1 039 175 mm2 ACSR per phase 1 039 70 mm2 ACSR earthwire\nAmendment 1, 1993 to Issue 2, 1985\n43—9\n132kV steel tower transmission lines: specification L7(C) — 1978 2 039 175 mm2 ACSR per phase — 1 039 175 mm2 ACSR earthwire\nErratum 1991 to Amendment 1, 1993 to Issue 1, 1986\n43—12\nInsulated aerial bundled conductors erection requirements for lv overhead distribution systems\nAmendment 1, 1993 to Issue 1, 1986\n43—14\nConductor fitting and associated apparatus for use with lv aerial bundled conductors\nErratum 1991 to Amendment 1, 1993 to Issue 2, 1990\n43—30\nLow voltage overhead lines on wood poles\nAmendment 1, 1993 to Issue 2, 1981\n43—40\nHigh voltage single circuit overhead lines on wood poles\nAmendment 1, 1993 to Issue 1, 1988\n43—50\n132kV single circuit overhead lines on wood poles\nAmendment 1, 1993 to Issue 1, 1984\n43—88\nSelection and treatment of wood poles and associated timber for overhead lines\nPart 1: Technical requirements\nIssue 4, 1993\nPart 2: Essential quality requirements\nIssue 1, 1992\n43—90\nAnti–climbing devices and safety signs for hv lines up to and including 400kV\nIssue 4, 1993\n43—92\nConductor fittings for overhead lines\nAmendment 1, 1993 to Issue 2, 1985\n43—93\nLine insulators\nAmendment 2, 1993 to Issue 3, 1986\n43—95\nSteelwork for overhead lines\nAmendment 1, 1993 to Issue 5, 1989\n48—2\nFault passage indicators for 6.6kV and 11kV underground and overhead distribution systems\nAmendment 1, 1993 to Issue 1, 1974\n48—3\nInstantaneous high–impedance differential protection\nAmendment 2, 1993 to Issue 1, 1977\n48—4\nDC relays associated with a tripping function in protection systems\nAmendment 1, 1993 to Issue 3, 1983\n50—2\nBimetallic ammeters\nAmendment 1, 1993 to Issue 1, 1975\nT2\nSpecification for transformers and reactors\n1966\nSection 26: Tap–changing equipment\nRevision 1, 1991\nC84—1\nOperation of oil–filled pressure–assisted cable systems up to 400kV operating voltage\n1992\nC90\nType approval tests for straight joints for 6350/11 000 volts three–core mass impregnated non–draining paper insulated solid type cables\n1984\nAmendment 1, 1993\nC93\nType approval tests for mechanical connections to metallic sheaths of cables\n1989\nAddendum, 1992\nC94\nGuide for physical inspection of newly manufactured 33kV mind cables\n1991\nG39/1\nModel code of practice covering electrical safety in the planning, installation, commissioning and maintenance of public lighting and other street furniture\n1992\nG59/1\nRecommendations for the connection of embedded generating plant to the Regional Electricity Companies' distribution systems\n1991\nAmendment 1, 1992\nG74\nProcedure to meet the requirements of IEC 909 for the calculation of short–circuit currents in three–phase AC power systems\n1992\nETR119\nThird report on optical fibres\n1991\nAppendices",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1993/2453/schedule/part/I",
    "retrieved_at": "2026-10-29T13:49:58.481339+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}