# The Restrictive Trade Practices (Standards and Arrangements) (Services) Order 1993, Part I: STANDARDS 09—1 Lead sleeves for electric cables (metric units) Amendment 1, 1993 to Issue 1, 1970 09—3 33kV impregnated paper insulated oil–filled and gas pressure type power cable systems Amendment 1, 1993 to Issue 2, 1982 09—5 275 and 400kV impregnated paper insulated oil–filled and gas compression type power cable systems Amendment 1, 1993 to Issue 3, 1991 09—10 Porcelain insulators for 33, 66, 132, 275 and 400kV pressure–assisted cable outdoor sealing ends Amendment 1, 1993 to Issue 3, 1976 09—13 Performance specification for high voltage heat–shrinkable components for use with high voltage solid type cables up to and including 33 000 volts Amendment 1, 1993 to Issue 1, 1981 09—16 Testing specification for metallic sheathed power cables with extruded cross–linked polyethylene insulation and accessories for system voltages of 66kV and 132kV Amendment 1, 1993 to Issue 1, 1983 09—20 Single core cables having cross linked polyethylene insulation and lead sheath for rated voltage 19 000/33 000 volts (Um03736 000 volts) Amendment 1, 1993 to Issue 1, 1990 12—3 Outdoor meter cupboards Issue 3, 1992 12—9 Wiping glands for metallic–sheathed cables Amendment 1, 1993 to Issue 2, 1980 12—11 Indoor and outdoor cable boxes for switchgear (for service at system nominal voltages of 6.6,11 and 33kV) Amendment 1, 1993 to Issue 2, 1981 12—12 Compounds for use in 33kV solid type cable accessories Amendment 1, 1993 to Issue 1, 1977 12—14 Impregnated crepe paper for cable jointing in solid type cable accessories Amendment 1, 1993 to Issue 1, 1976 12—18 Polyester resin/glass fibre protection boxes and protective shrouds for oil–filled and gas–pressure cable accessories Amendment 1, 1993 to Issue 1, 1980 12—24 Plastic ducts for buried electric cables Amendment 1, 1991 and Amendment 2, 1993 to Issue 1, 1989 35—1 Distribution transformers (from 16kVA to 1000kVA) Amendment 1, 1993 to Issue 4, 1985 35—2 Emergency rated system transformers—33/11.5kV delta/star and star/star connected Amendment 1, 1993 to Issue 4, 1982 35—16 Interface arrangement for direct connection of gas–insulated metal–enclosed switch– gear to 132kV, 275kV and 400kV transformers Issue 1, 1992 37—2 LV distribution fuse–boards Amendment 1, 1993 to Issue 3, 1990 41—11 Tubular aluminium busbars, connections and terminal fittings for 132kV outdoor substations Amendment 1, 1993 to Issue 2, 1982 41—24 Guidelines for the design, installation, testing and maintenance of main earthing systems in substations Issue 1, 1992 41—26 Distribution switchgear for service up to 36kV (cable connected) Amendment 1, 1993 to Issue 1, 1991 41—27 Outdoor distribution switchgear for service up to 36kV (overhead conductor connected) Corrigendum 1992 and Amendment 1, 1993 to Issue 1, 1991 43—1 Survey and preparation of ground line profiles and plotting of tower positions for steel tower overhead transmission lines at 132kV and higher voltages Amendment 1, 1993 to Issue 2, 1986 43—4 Design of foundations for steel towers for overhead transmission lines at 132kV and higher voltages Amendment 1, 1993 to Issue 2, 1986 43—5 Fabrication and galvanising of tower and foundation steelwork for overhead transmission lines at 132kV and higher voltages Amendment 1, 1993 to Issue 2, 1986 43—7 132kV steel tower transmission lines: specification L4(M) — 1978 1 039 175 mm2 ACSR per phase 1 039 70 mm2 ACSR earthwire Amendment 1, 1993 to Issue 2, 1985 43—9 132kV steel tower transmission lines: specification L7(C) — 1978 2 039 175 mm2 ACSR per phase — 1 039 175 mm2 ACSR earthwire Erratum 1991 to Amendment 1, 1993 to Issue 1, 1986 43—12 Insulated aerial bundled conductors erection requirements for lv overhead distribution systems Amendment 1, 1993 to Issue 1, 1986 43—14 Conductor fitting and associated apparatus for use with lv aerial bundled conductors Erratum 1991 to Amendment 1, 1993 to Issue 2, 1990 43—30 Low voltage overhead lines on wood poles Amendment 1, 1993 to Issue 2, 1981 43—40 High voltage single circuit overhead lines on wood poles Amendment 1, 1993 to Issue 1, 1988 43—50 132kV single circuit overhead lines on wood poles Amendment 1, 1993 to Issue 1, 1984 43—88 Selection and treatment of wood poles and associated timber for overhead lines Part 1: Technical requirements Issue 4, 1993 Part 2: Essential quality requirements Issue 1, 1992 43—90 Anti–climbing devices and safety signs for hv lines up to and including 400kV Issue 4, 1993 43—92 Conductor fittings for overhead lines Amendment 1, 1993 to Issue 2, 1985 43—93 Line insulators Amendment 2, 1993 to Issue 3, 1986 43—95 Steelwork for overhead lines Amendment 1, 1993 to Issue 5, 1989 48—2 Fault passage indicators for 6.6kV and 11kV underground and overhead distribution systems Amendment 1, 1993 to Issue 1, 1974 48—3 Instantaneous high–impedance differential protection Amendment 2, 1993 to Issue 1, 1977 48—4 DC relays associated with a tripping function in protection systems Amendment 1, 1993 to Issue 3, 1983 50—2 Bimetallic ammeters Amendment 1, 1993 to Issue 1, 1975 T2 Specification for transformers and reactors 1966 Section 26: Tap–changing equipment Revision 1, 1991 C84—1 Operation of oil–filled pressure–assisted cable systems up to 400kV operating voltage 1992 C90 Type approval tests for straight joints for 6350/11 000 volts three–core mass impregnated non–draining paper insulated solid type cables 1984 Amendment 1, 1993 C93 Type approval tests for mechanical connections to metallic sheaths of cables 1989 Addendum, 1992 C94 Guide for physical inspection of newly manufactured 33kV mind cables 1991 G39/1 Model code of practice covering electrical safety in the planning, installation, commissioning and maintenance of public lighting and other street furniture 1992 G59/1 Recommendations for the connection of embedded generating plant to the Regional Electricity Companies' distribution systems 1991 Amendment 1, 1992 G74 Procedure to meet the requirements of IEC 909 for the calculation of short–circuit currents in three–phase AC power systems 1992 ETR119 Third report on optical fibres 1991 Appendices --- Source: https://www.legislation.gov.uk/uksi/1993/2453/schedule/part/I (the official version) Page: https://openlegislation.uk/restrictive-trade-practices-standards-and-arrangements-services-order-1993/schedule/part-I Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.