The Restrictive Trade Practices (Standards and Arrangements) Order 1990

06-1

Safety belts, harnesses and associated equipment

Issue 2, 1984

09-1

Lead sleeves for electric cables (metric units)

Issue 1, 1970

09-2

The installation of 33kV and higher voltage power cables and associated auxiliary cables

Issue 3, 1983

09-3

33kV impregnated paper insulated oil-filled and gas pressure type power cable systems

Issue 2, 1982

09-4

66kV and 132kV impregnated paper insulated, oil-filled and gas pressure type power cable systems

Issue 2, 1981

09-5

275kV and 400kV impregnated paper insulated, oil-filled and gas compression type power cable systems

Issue 2, 1981

09-6

Auxiliary multicore and multipair cables

Issue 6, 1988

09-7

PVC insulated concentric service cables with stranded copper or solid aluminium phase conductors and copper concentric conductors

Issue 4, 1981

09-8

Impregnated paper insulated 600/1000 volt cable with three solid aluminium phase conductors and aluminium sheath/neutral conductor (Consac)

Issue 4, 1977

09-9

Polymeric insulated, combined neutral/earth (CNE) cables with solid aluminium phase conductors and concentric aluminium wire waveform neutral/earth conductor

Issue 5, 1981

09-10

Porcelain insulators for 33kV, 66kV 132kV, 275kV and 400kV pressure-assisted cable outdoor sealing ends

Issue 1, 1976

09-11

Heat shrinkable insulating materials for use with 600/1000V cables and accessories

Issue 1, 1975

09-12

Impregnated paper insulated corrugated aluminium sheathed 6350/11,000 volt cable

Issue 1, 1979

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

Issue 1, 1981

09-15

Jointing instructions and procedures for mass impregnated and mass impregnated non-draining paper insultated 19/33kV cables

Part 1: Jointing instructions

Issue 2, 1989

Part 2: Jointing procedures

Issue 2, 1989

09-16

Testing specification for metallic sheathed power cables with extruded cross-linked polyethylene insulation and accessories for system voltages of 66kV and 132kV

Issue 1, 1983

09-17

Single core cables for use in substations having extruded insulation and a rated voltage of 6350/11,000 volts

Issue 1, 1984

Corrigendum 1, 1987

09-19

Synthetic hydrocarbon insulating oil for use in oil-filled pressure-assisted cables up to 132kV operating voltage

Issue 1, 1986

09-20

33kV Single Core hv polymeric insulated cable

Issue 1, 1990

12-3

Outdoor meter cupboards

Issue 2, 1986

12-4

Terminating equipment for pilot cables subject to induced transient voltages exceeding 650V rms

Issue 1, 1973

12-5

Indicating lamps-filament type

Issue 1, 1972

12-6

Time fuse-links

Issue 1, 1973

12-8

The application of fuse-links to 11kV/415V and 6.6kV/415V underground distribution networks

Issue 2, 1986

12-9

Wiping glands for metallic-sheathed cables

Issue 2, 1980

12-10

Single phase domestic cut outs up to 100A rating

Issue 1, 1977

12-11

Indoor and outdoor cable boxes for switchgear

Issue 2, 1981

12-12

Compounds for use in 33kV solid type cable accessories

Issue 1, 1977

12-14

Impregnated crepe paper for cable jointing in solid type cable accessories

Issue 1, 1976

12-15

Weak-back ferrules for electric power cable jointing on solid-type cables up to and including 11kV

Issue 1, 1978

12-16

Fuse-switch trip testing device

Issue 1, 1978

12-18

Polyester resin/glass fibre protection boxes and protective shrouds for oil-filled and gas-pressure cable accessories

Issue 1, 1980

12-19

Single phase street lighting cut-outs-25A rating

Issue 1, 1982

12-20

Low voltage pole-mounted fuses

Issue 1, 1984

Corrigendum 1, 1986

12-23

Polythene protection tape for buried electricity supply cable

Issue 1, 1988

12-24

Plastic ducts for buried electric cables

Issue 1, 1989

13-1

Portable glass fibre ladders and steps

Issue 1, 1987

23-2

Code of practice for post weld heat treatment (electrical resistance heating elements)

Issue 2, 1983

23-3

Titanium tubes for heat exchangers and condensers

Issue 3, 1989

23-4

Seamless steel feed water heater tubes for high pressure applications

Issue 2, 1989

26-1

Insulating foam-filled tube and solid rod for live working

Issue 2, 1977

26-2

Insulating tools for live working on high voltage overhead lines

Issue 1, 1978

26-3

Hand held tools for live low voltage working

Issue 2, 1984

26-4

Overhead line conductor erection clamps-test specification and test certificates

Issue 1, 1980

35-1

Distribution transformers (from 16kVA to 1000kVA)

Issue 4, 1985

35-2

Emergency rated system transformers (35/11.5kV delta/star and star/star connected)

Issue 4, 1982

35-5

Generator voltage transformers for 500/660 MW turbo-generators

Issue 1, 1980

35-6

Generator voltage transformers for gas turbines

Issue 1, 1980

35-14

Formel NF filled transformers

Issue 1, 1984

37-1

415V ac switchgear, controlgear and fusegear

Issue 2, 1977

37-2

L.V. distribution fuseboards

Issue 2, 1984

37-3

A.C. metal-enclosed switchgear and controlgear of rated voltages 3.6kV and 12kV

Part 1-Circuit breaker equipment (air-break)

Issue 1, 1981

Part 2-Fused switching device equipment of 3.6kV rated voltage

Issue 1, 1981

41-1

3.3kV 150 MVA airbreak switchgear-floor details and building requirements

Issue 1, 1969

41-2

11kV distribution switchgear (floor details)

Issue 2, 1976

41-4

11kV 500 and 750 MVA airbreak switchgear floor details and building requirements

Issue 1, 1970

41-5

Requirements for 12kV distribution metal-enclosed indoor switchgear

Issue 3, 1983

41-6

132kV outdoor busbar type substations with aluminium connections

Issue 1, 1974

41-7

132kV outdoor substations extensible up to four-switch mesh

Issue 1, 1980

41-8

132kV compact transformer feeder substations

Issue 1, 1980

Amendment 1, 1988

41-9

Insulating oil handling and storage equipment for 132kV outdoor substations

Issue 1, 1974

41-10

Switchgear for use on 66, 132, 275 and 400kV systems

Issue 3, 1989

41-11

Tubular aluminium busbars, connections and terminal fittings for 132kV outdoor substations

Issue 2, 1982

41-12

Non-extensible ring main equipments, (incorporating an automatic fuse-switch and switches ratings: 250 MVA at 11kV and 150 MVA at 6.6kV)

Issue 2, 1975

Corrigendum No. 1, 1987

41-13

Air break switch-disconnectors 12kV to 36kV for use on overhead lines

Issue 1, 1978

41-15

Standard circuit diagrams for equipment in 132kV substations

Part 1: Transformer feeder, transformer end

Issue 1, 1978

Part 2: Transformer feeder, transformer end 132/11/11kV dual secondary

Issue 1, 1978

Part 3: Arrangements for locally banking two transformers. Transformer end of a transformer-feeder

Issue 1, 1982

Part 4: 132kV busbar substation feeder-circuits

Issue 1, 1983

Part 5: Intertripping over voice frequency channels

Issue 2, 1988

Part 6: Standard circuit diagrams for equipment in 132kV substations. Bus-section and bus-coupler

Issue 1, 1990

Part 7: Arrangements for locally banking a transformer with a feeder at a busbar station

Issue 1, 1988

Part 8: 132kV busbar station-busbar protection

Issue 1, 1986

Part 9: Standard circuit diagrams for equipment in 132kV substations ac traction supplies to British Rail

Issue 1, 1990

41-16

Apparatus terminations, conductor sizes and associated fittings (copper) used in outdoor and indoor substations with outdoor equipment

Issue 2, 1981

41-18

Arrangements for partial discharge testing of bushings, capacitors, instrument transformers and switchgear of rated voltage 7.2-425kV inclusive

Issue 1, 1988

41-19

Open type switchgear for use on 33kV systems

Issue 1, 1979

41-21

Portable earthing equipment for open type hv apparatus in substations

Issue 1, 1985

41-22

Metal-enclosed switch, switch-disconnector and earthing switch combinations (ratings 12.5, 16 and 20kA at 7.2kV and 12kV)

Issue 1, 1982

41-23

Metal-enclosed automatic fuse-switch equipment (ratings 12.5, 16 and 20kA at 7.2kV and 12kV)

Issue 1, 1982

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

Issue 2, 1986

43-2

Design of steel tower overhead transmission lines at 132kV and higher voltages

Issue 1, 1972

Corrigendum 1989

43-3

Design of lattice steel transmission towers for overhead lines at 132kV and higher voltages

Issue 1, 1972

43-4

Design of foundations for steel towers for overhead transmission lines at 132kV and higher voltages

Issue 2, 1986

43-5

Fabrication and galvanising of tower and foundation steelwork for overhead transmission lines at 132kV and higher voltages

Issue 2, 1986

Corrigendum 1988

43-6

Construction of overhead transmission lines on steel towers for 132kV and higher voltages

Issue 2, 1986

43-7

132kV steel tower transmission lines: Specification L4(M)-1978

Issue 2, 1985

43-8

Overhead line clearances

Issue 2, 1988

Amendment 1989

43-9

132kV steel tower transmission lines specification L.7(C)-1978 2 x 175mm2 ACSR per phase-1 x 175mm2 ACSR earthwire

Issue 1, 1986

43-11

400kV steel tower transmission lines-specification L.12 (2 x 700mm2 AAAC per phase) (1 x 425mm2 AAAC earthwire)

Issue 1, 1984

43-12

Insulated aerial bundled conductors erection requirements for 1v overhead distribution systems

Issue 1, 1986

Corrigendum 1, 1987

Corrigendum 2, 1988

43-13

Aerial bundled conductors (ABC) insulated with cross-linked polyethylene for low voltage overhead distribution

Issue 1, 1986

Corrigendum September 1987

43-14

Conductor fittings and associated apparatus for use with 1v aerial bundled conductors

Issue 1, 1989

43-15

Insulator binds and equivalent helical fittings for overhead lines

Issue 1, 1988

43-30

Low voltage overhead lines on wood poles

Issue 2, 1981

43-40

High voltage single circuit overhead lines on wood poles

Issue 1, 1988

43-50

132kV single circuit overhead lines on wood poles

Issue 1, 1984

Corrigenda April and July 1985

Corrigendum December 1987

43-81

Portable earthing equipment for high voltage overhead lines up to and including 66kV

Issue 1, 1984

43-88

Treatment of wood poles and associated timber for overhead lines

Issue 3, 1988

43-90

Anti-climbing devices for hv lines up to and including 400kv

Issue 2, 1979

43-91

Stay strands and stay fittings for overhead lines

Issue 4, 1984

43-92

Conductor fittings for overhead lines

Issue 2, 1985

Corrigendum 1986

43-93

Line insulators

Issue 3, 1986

Corrigendum December 1986

43-94

Earth rods and their connectors

Issue 2, 1977

43-95

Steelwork for overhead lines

Issue 5, 1989

43-96

Fasteners and washers for wood pole overhead lines

Issue 2, 1986

43-97

Steel overhead line supports

Issue 1, 1990

44-1

Carbon brushes (for rotating electrical machines)

Issue 2, 1971

44-2

Electric motors-dimensions

Issue 1, 1970

44-3

Electric motors-specification (3300V and above)

Issue 2, 1980

Erratum 1983

44-4

Electric motors-specification (415V and below, 0.75kW and above)

Issue 2, 1980

44-5

Testing the insulation systems of stator coils for rotating electrical machines

Issue 4, 1987

44-7

Testing the insulation systems of bars (half coils) for rotating electrical machines of turbine driven and hydro-generator types

Issue 1, 1978

48-1

Static relays-dimensions

Issue 1, 1969

48-2

Fault passage indicators for 6.6kV and 11kV underground and overhead distribution systems

Issue 1, 1974

48-3

Instantaneous high-impedance differential protection

Issue 1, 1977

Amendment 1, 1987

48-4

D.C. relays associated with a tripping function in protection systems

Issue 3, 1983

50-1

Direct reading pressure gauges (for oil-filled cable systems)

Issue 2, 1977

50-2

Bimetallic ammeters

Issue 1, 1975

50-3

Code for transmitting and recording metering and associated information

Issue 1, 1975

50-4

Analogue direct current signal for plant instrumentation and control systems

Issue 1, 1978

Addendum 1979

50-5

Standardised contact sensing circuits

Issue 1, 1983

50-6

Pressure switches for oil-filled cable systems

Issue 1, 1986

50-7

Token-operated prepayment watt-hour meter-Class 2

Issue 1, 1986

50-8

Token acceptor for operation in conjunction with credit watt-hour meter

Issue 1, 1986

50-18

Design and application of ancillary electrical equipment

Issue 2, 1989

56-1

Ferritic steel valve castings

Issue 2, 1989

62-1

Boiler feed pump impeller castings

Issue 1, 1981

62-2

Ash pumps

Issue 2, 1988

62-3

Main circulating water pump impeller castings

Issue 1, 1983

62-4

Inspection and testing of boiler feed pump shafts, casings, impellers and diffusers

Issue 1, 1983

66-1

0.5% Chromium, molybdenum, vanadium steel castings for steam turbines

Issue 2, 1989

66-2

2.25% Chromium, molybdenum steel castings for steam turbines

Issue 1, 1989

66-3

Carbon steel castings for steel turbines

Issue 1, 1989

68-1

Tubes and tube assemblies for boilers

Issue 2, 1988

68-2

Acceptance levels for radiographic examination of flash butt welds in steel tubes

Issue 1, 1983

98-1

Surface preparation and paint finishing of new plant and equipment

Issue 1, 1971

98-2

Ultrasonic probes

Issue 1, 1979

98-4

Ultrasonic testing of ferritic steel castings

Issue 2, 1989

98-5

Automatic ultrasonic testing of steel tubes

Part 1: Seamless and welded tubes, outside diameters of 12mm up to but not including 160mm

Issue 3, 1989

Part 2: Seamless tubes, outside diameters 160mm and above

Issue 3, 1989

Part 3: Longitudinally submerged arc welded steel tubes, outside diameters 160mm and above

Issue 2, 1989

Part 4: Longitudinally electric resistance and induction welded steel tubes, outside diameters 160mm and above

Issue 2, 1989

98-6

Ultrasonic testing of ferritic steel plate

Issue 1, 1981

98-7

Ultrasonic probes: normal (0 degs) compression wave probes for contact testing

Issue 1, 1982

98-8

Ultrasonic probes: low frequency single crystal shear wave angle probes

Issue 1, 1982

98-9

Ultrasonic flaw detectors

Issue 1, 1985

Amendment No.1 1987

98-10

Manual ultrasonic testing of welds in ferritic steel sections

Part 1: Butt welds in ferritic steel sections greater than 10mm thick

Issue 2, 1984

Part 2: Nozzle, branch, stub and attachment welds

Issue 1, 1983

Part 3: Butt welds in tubes of outside diameters between 25mm and 120mm inclusive

Issue 2, 1984

Part 4: Guidance on inspection capability and joint design

Issue 1, 1988

98-11

Radiographic testing of steel castings

Issue 2, July 1989

98-12

Calibration and routine performance checks of ultrasonic NDT equipment

Issue 1, 1989

98-13

Manual ultrasonic testing of forgings for turbine and generator rotors, shafts and discs

Issue 2, 1989

98-14

Ultrasonic testing procedures for non-magnetic generator coil retaining ring forgings

Issue 2, 1989

98-15

Automatic eddy current testing of tubes

Part 1: Detection of imperfections in welded titanium tubes

Issue 2, 1989

Part 2: Verification of hydraulic leak tightness of steel tubes

Issue 2, 1989

Part 3: Detection of imperfections in steel tubes

Issue 2, 1989

98-16

Defect evaluation and size estimation by the manual ultrasonic testing method

Issue 1, 1989

98-17

Radiographic examination of fusion welded butt joints in steel

Issue 1, 1989

98-18

Capability of magnetic particle inspection

Issue 1, 1989

98-19

Acceptance criteria for pipe circumferential butt welds

Issue 1, 1989

98-20

Penetrant flaw detection capability

Issue 1, 1989

98-21

Magnetic particle and dye penetrant testing materials. Chemical compatibility and health hazards

Issue 1, November 1989

98-22

Capability of ultrasonic testing of ferritic steel forgings

Issue 1, 1989

98-23

Ultrasonic and visual inspection of components lined with tin based white metal

Issue 1, 1989

CJ1101M

Vertical, horizontal or inverted indoor sealing end for 6350/11,000V single-core cables up to and including 1000mm2 (does not provide for the jointing of milliken conductored cable)

76

CJ1102M

Vertical outdoor sealing end for 6350/11,000V single-core cables up to and including 1000mm2 (does not provide forthe jointing of milliken conductored cable)

76

CJ1103

Crepe paper insulated straight through joints for belted three-core 11kV pre-impregnated or mass-impregnated non-draining solid type cables with stranded aluminium conductors

70

L6

400kV steel tower transmission lines with 4 x 0.4 sq.in. cu equiv SCA conductors per phase

66

Amendment 1, 1969

M3

Restricted hour and time of day tariff time switches

73

S1

General technical specification for standard 33kV indoor metalclad switchgear, 750MVA and 1000MVA ratings

65

Errata slip, 1965

S10

Standard steelwork, etc for 11kV pole-mounted air-break isolators

63

S12

Standard numbering for small wiring for switchgear and transformers together with their associated relay and control panels 1964

Amendment 1, 1969

S17

Partial discharge testing of demountable synthetic resin-bonded and oil-impregnated paper bushings of rated voltage 22kV and above

68

T2

Transformers and reactors

66

Interim index and general requirements

Schedules of general particulars and guarantees

Section 1: Generator station and unit transformers

Section 2: Transmission transformers (excluding auto-transformers): general design and performance

Section 3: Auto-transformers: general design and performance

Section 4: Oil-immersed auxiliary transformers for power stations: general design and performance

Section 5: Air insulated auxiliary transformers for power stations: general design and performance

Section 6: Earthing and auxiliary transformers for transmission stations: general design and performance

Section 7: Oil-immersed series and shunt reactors

Section 8: Magnetic circuits

Section 9: Windings, connections and terminal markings

Section 10: Minimum safety and external air clearances and co-ordinating gaps

Section 11: Bushings and terminals Revised

76

Section 12: Cable boxes, cable sealing-end chambers and disconnecting chambers Revision 2,

88

Section 13: Noise and vibration

Amendment 1, 1970

Amendment 2, 1977

Section 14: Earthing systems and connections

Section 15: Tanks, conservator vessels and pressure relief devices

Amendment 1, 1976

Section 16: Valves, drain and air release plugs and oil sampling devices Revision 1, 1982

Section 17: Cleaning and paint or other protective systems

Section 18: Dehydrating breathers

Section 19: Oil level gauges

Section 20: Radiators, cooling-banks and oil/water coolers

Amendment 1, 1976

Section 21: Rating and diagram plates, valve location and function plates, terminal identification plates and labels

Section 22: Oil circulating pumps

Section 23: Fans

Section 24: Motors

Section 25: Electrical control of cooling equipment

Section 26: Tap changing equipment (excluding single compartment types)

Section 27: Electrical control of on-load tap change equipment

Amendment 1, 1978 Errata slip, 1979

Section 28: Temperature indicators for oil immersed transformers and reactors Revision 1, 1980

Section 29: Gas and oil-actuated relays

Section 30: Oil flow indicators, oil pressure gauges and differential pressure gauges

Section 31: Marshalling kiosks and cubicles

Section 32: Terminal housing for secondary wiring

Section 33: Control connections, instrument wiring, interconnecting cables, terminal blocks and fuses

Section 34: Drying out, transport and erection

T3

Transformers for 33kV and 22kV systems (up to 20 MVA) 1962

Amendment 1, 1964

Amendment 2, 1965

Amendment 3, 1966

Amendment 4, 1966

Amendment 5, 1969 Guide on impulse voltage testing power transformers and reactors

C1/7

Type approval tests for 33kV mass impregnated paper-insulated solid type cable systems including non-draining types

81

C5

House service overhead systems (HSOS) cables

51

C7/1

Use of earthed and unearthed type cables on 33kV and lower voltage systems

52

C16

Colours of PVC conductor

54

C25/2

Code of practice on the design of straight through branch and service joints for use on paper insulated lead sheathed cables operating at voltages up to 600/1000 volts

73

C28/4

Type approval test for impregnated paper insulated gas pressure and oil-filled power cable systems from 33 to 132kV inclusive

75

Amendment 1, 1978

Amendment 2, 1981

C34/1

Code of practice on the design of straight-through and branch jointsfor use on paper-insulated lead-sheathed cables operating at voltage from 3300V up to 11,000V

76

C39/5

Identification of buried plastic sheathed cables

75

C43/1

Dimensions of copper terminal stems for sealing ends of outdoor or indoor type but not oil-immersed sealing ends

66

C46/1

Measures necesssary to prevent corrosion damage to buried metallic structures by neighbouring cathodic protection installations

81

C47/1

Type approval tests for single-core impregnated paper-insulated gas pressure and oil-filled power cable systems for 275 and 400kV

75

Amendment 1, 1978

Amendment 2, 1981

Amendment 3, 1983

C48/1

Type approval tests for anti-corrosion coverings for pressure type cables including pipeline cables

74

C53

Vertical outdoor sealing ends for 22kV up to 1.5 sq in screened or unscreened mass-impregnated or non-draining solid type cables

65

C55/4

Insulated sheath power cable systems

89

C61

Installation bending radii of 33kV and higher voltage cables

67

C62/3

Current ratings of copper and aluminium conductored PVC insulated and PVC sheathed HSOS cable

71

C64

Testing procedure for approval of joints for cables generally to BEBS C5

69

Amendment 1, 1969

Amendment 2, 1973

Amendment 3, 1977

C66/1

Type approval testing procedure: protective boxes for use with buried accessories employed on 33kV-400kV insulated sheath power cable (and for sheath sectionalising insulation embodied in such accessories)

79

C67

Specification for impregnated paper-insulated solid type cables for voltages up to and including 33,000 volts and PVC insulated cables for voltages up to and including 3300 volts

70

Amendment 1, 1970

Amendment 2, 1971

C68

Method of terminating the carbon paper screen on 11kV belted multicore cables

70

C79

Type approval tests for connectors and terminations for aluminium conductors of insulated power cables

72

Amendment 1, 1981

Amendment 2, 1982

C81/3

Type approval tests for joints for 600/1000 volt cable systems

86

C82

Pulling-in 11kV aluminium sheathed, consac and waveform cables

77

C84

Operation of oil-filled cable systems

76

C89

Performance specification for terminations on polymeric insulated cables rated at 12kV and 36kV maximum system voltage

86

C90

Type approval tests for straight joints for 6350/11,000 volts three-core mass impregnated non-draining paper insulated solid cables

84

C92

Performance specifications for pole top terminations on

6350/11,000V paper insulated cables

87

Part 1: Non-metallic pole boxes for mass impregnated non-draining (MIND) solid type cable

C93

Type approval tests for mechanical connectors to metallic sheath of cables

89

G5/3

Limits for harmonics in the UK electricity supply system

76

G10

Standardisation of service intake arrangements for system building

65

G12/2

National code of practice on the application of protective multiple earthing to low voltage networks

82

G14

Protective multiple earthing: recommended principles of testing to ensure correct polarity

71

G15

Standardisation of electricity supply arrangements in industrialised component buildings 1971

G16

Standard specification for a new single-phase service termination/metering up to 100A

1972

G17/3

Leakage of flammable gases: recommendations

1988

G18

Operation of air break isolating switches: recommendations

1974

G19/1

Model guidelines for operations or work on the premises of consumers receiving hv supply

1977

G21

Assessment of oil handling and storage plant requirements for 132kV outdoor substations

1975

G22/2

Superimposed signals on public electricity supply network

1984

G24

Code of practice for the safe operation of ground-mounted dependent manual closing oil switches and oil circuit breakers at 11kV and 6.6kV

1975

G27

Mobile radio systems-modulation in the VHF middle band

1975

G28/3

National Equipment Defect Reporting Scheme-notes of guidance

1989

G29

Farm hygiene: precautions to prevent spread of animal and poultry diseases

1977

G30/1

Guidance on pole top rescue procedures

1986

G31

Recommended colour code for control boards, diagrams and wall maps

1976

G32/1

Guide to safety in the storage, handling and use of highly flammable liquids and liquefied petroleum gases

1985

G35

Precautions to be taken by persons working in the vicinity of overhead lines on construction sites

1977

G38/1

Operational procedure associated with electricity supplies for traction purposes on a.c. and d.c. electrified lines

1985

G39

Model code of practice covering electrical safety in the planning, installation, commissioning and maintenance of public lighting and other street furniture

1979

G42/1

Overhead lines in the vicinity of recreational sites

1983

G44

Mandatory procedure for the co-ordination of power line carrier system frequencies

1980

G45/1

Notes of guidance for Electricity Boards on the use of irrigators, slurry guns and high pressure hoses in the vicinity of overhead lines

1983

G46

The maintenance of electrical plant and equipment up to and including 132kV

1981

G48

Remedial measures for Enfield 132kV gas compression cable sealing ends

1981

G49

Jointing instructions for 132kV and 275kV compression cables, fittings and ancillary equipment (Pirelli Enfield)

1981

G50

Maintenance of 132kV gas compression sealing ends

1986

G51

Guidance notes on control of access to high voltage compounds with disconnectors used in the fault interfering mode

1981

G53

Radio communications in an emergency-system design and operational recommendations to achieve maximum reliability and flexibility

1982

G54

Operational procedures for helicopter use within the ESI

1982

G55

The avoidance of danger from overhead electric lines and underground electric cables in forests and plantations

1983

G56

Special requirements for the access of Boards' staff to British Railways Board operational land for inspection purposes and work

1987

G57

Cable laying on agricultural land

1983

G58/1

Purchase, use, storage, inspection and maintenance of hand held insulated tools for live working up to 1000 volts

1986

G59

Recommendations for the connection of private generating plant to the Electricity Boards' distribution systems

1985

G61

Handling of electrostatic sensitive devices

1985

G62

Operational safety when working in the vicinity of live high voltage overhead lines

1985

G64

Safety in cableways

1986

G66

Guidance on the specification, use and maintenance of portable lifting equipment in Area Boards

1986

G67

Guidance on safety in conductor stringing on overhead lines

1987

G68

The fault performance of non-auto-reclosing oil circuit-breakers intended for 11kV (250MVA) underground distribution networks

1988

G69

Guidance on the safety aspects of work on sulphur hexaflouride filled distribution equipment up to 145kV

G70

Vegetation control near overhead lines

1989

G71

Purchase, storage, use, inspection and maintenance of insulating mats for electrical purposes up to 650V

1989

L9/2

Testing of wood poles prior to climbing or use as a support

1978

L13/1

Street lighting brackets fixed on joint user poles with the Post Office

1960

L15/4

Notes on use of PVC insulated hv conductors (up to 11kV) as protection for Post Office open wires or aerial cable

1968

L32/1

Recommended procedure for erecting Area Board overhead lines over motorways

1975

L36

Metric profile scales

1971

L37

Overhead transmission steel tower line construction: code of behaviour

1971

L38

Protective greasing of PVC covered copper and bare and PVC covered aluminium based overhead line conductors

1981

L41

Use of home grown wood poles for overhead line supports

1987

M1/2

Standardisation of equipment required for kW maximum demand metering on consumer’s premises

1956

M3

Meter voltage markings

1951

M7/1

Certification of meters other than kWh meters

1956

M10/3

Serial numbering of meters

1988

M11/1

Standardisation of accuracy requirements for new meters

1970

M12/1

Standard wiring polyphase metering equipments

1957

M15/4

Fused flexible leads for use with portable voltage measuring instruments at voltages up to 600 volts ac/dc

1981

M25/1

Improving the security of meters and associated service equipment

1988

M26/2

Standard purchasing requirements for single phase, one rate and two rate house service credit meters

1988

M28

Consumers' attachments to Boards' meters

1988

M29

Facilities offered to customers from Area Board metering equipment

1989

P1/3

275/33kV, 132/33kV and 132/11kV supply point transformers

1969

P2/5

Security of supply

1978

P3/1

Load reduction by voltage adjustment

1977

P4

Power factor improvement

1955

P5/5

Design of low voltage underground networks for new housing estates

1987

P10

Voltage control at bulk supply points

1965

P11/1

Compact 132/33kV substations

1969

P14

Preferred switchgear ratings

1971

P15

Transformer loading guide-a guide to the loading of double-wound transformers having nominal ratings of 120MVA and below. Supplying systems at 66kV and below from the supergrid and 132kV system

1971

P16

EHV or hv supplies to induction furnaces

1975

P17

Current rating guide for distribution cables

Part 1: 11kV cables

Part 2: 33kV cables

1976

Amendment 1, 1978

P18

Complexity of 132kV circuits

1978

P19

Procedure for the planning and design of 132kV systems

1979

P20/1

Earthing policy in relation to the customer’s installations

1989

P23

Consumers' earth fault protection on single phase supplies up to 100A for compliance with the 15th edition of the IEE Wiring Regulations for Electrical Installations

P24

AC traction supplies to British Rail

1984

Addendum, 1990

P25

The short-circuit characteristics of Electricity Boards' low voltage distribution networks and the co-ordination of overcurrent protective devices on 240V single phase supplies up to 100A

1984

P26

The estimation of the maximum prospective short-circuit current for three phase 415V supplies

1985

P27

Current rating guide for high voltage overhead lines operating in the UK distribution system

1986

P28

Planning limits for voltage fluctuations caused by industrial, commercial and domestic equipment in the United Kingdom

1989

P29

Planning limits for voltage unbalance in the United Kingdom

1990

P01

Post Office Memorandum A80(e): Protection of Post Office lines from contact with low or medium voltage power lines

1975

P02

Post Office Memorandum A231(b): Protection of Post Office lines from high voltage power lines

1975

P04/1

Services to British Telecom Public Telephone Housings

1988

S2/4

Limitation of fire risk in substations at 132kV and below and in enclosed cableways

1976

S3/1

Metering current transformers for use in switchgear

1978

S5/1

Earthing installations in substations

1966

Amendment 1, 1969

Amendment 2, 1970

Addendum 1969

S15

Standard schematic diagrams

1956

Part 1: Schematic diagrams

Part 2: Alarm schemes

Part 3: Basic diagrams for voltage and current transformer secondary circuits

Amendment 1, 1970

Amendment 2, 1988

Part 4: Circuit diagrams for 6.6/11kV standard distribution switchgear

S17

Guide for light current control, indication and alarm equipment

1960

Amendment 1, 1964

S26

Aluminium busbar installations for use in 33kV outdoor substations

1968

S30

Uprating 132kV 3500MVA substations to 5000MVA

1973

S31

Increase in single-phase earth fault rating at 132kV 3500MVA substations

1973

S33

Switchgear current ratings at reduced ambient temperature (excluding fuses)

1982

S34

A guide for assessing the rise of earth potential at substation sites

1986

Amendment 1, 1986

Amendment 2, 1988

S35

Remedial measures for 11kV outdoor groundmounted switchgear

1987

S36

Procedure to identify and record “hot” substations

1988 EB/BT.1 Conditions for British Telecom and Electricity Board joint use of poles 1982

TELE.1

The Electricity Boards' practices for the design, installation, operation and maintenance of telecommunication systems

1983

T1

System phasing

1949

T3

Automatic voltage control at grid supply points

T8/6

The cost of losses for transformers used on distribution systems

1987

ACE1

Power factor improvement

1953

Section: Recommendations

ACE3

Use of series capacitors in power systems

1956

Addendum 1965

Section 3

ACE11

Standardisation of auto-reclosing facilities on 11kV ground-mounted metalclad distribution switchgear

1966

Addendum 1971

Sections 3, 4, Addendum

ACE14

Guide and report on high voltage live line working on overhead lines carried out on steel, wood or concrete supports up to and including 132kV

1974

Revision 2 (1983) to Section 2

All Sections

ACE21

Guide and report on medium and low voltage live line working

1969

All Sections

ACE23

Guide to the provision of electronic telecontrol equipment for Area Electricity Boards

1969

All Sections

ACE24

Standardisation of coding for ripple control signals

1969

All Sections

ACE30

Recommended procedure for the selection of power line carrier frequencies

1972

All Sections

ACE44

Pulling-in aluminium-sheathed cable

Part 1: 11kV belted corrugated type 1975 Section 5

Part 2: 11kV screened corrugated type, 11kV belted smooth-sided type, consac cable

1978 Section 6

ACE46

The maintenance of electrical plant and equipment up to and including 132kV

1981

All Sections

ACE51

The application of ER P2/5. Security of Supply

1979

ACE54

Auto-reclosing schemes for 11kV distribution networks

1977

Sections 7, 11, Appendices

ACE55

Lightning protection for networks up to 132kV

1977

All Sections

ACE57

Guide to mechanical aids used for cable laying and overhead line erection

1977

All Sections

ACE59

132kV delayed auto-reclosing schemes

1977

All Sections

ACE67

Reliability investment in radial hv distribution systems with overhead lines

1979

ACE68

Code of practice on the guarding of roadworks

1979

All Sections

ACE80

Guide to the maintenance of electrical plant up to and including 132kV

1981

All Sections

ACE105

Report on the design of low voltage underground networks for new housing

1986

All Sections

ET106

Remedial measures for outdoor ground-mounted switchgear

1987

All Sections

ET110

Test procedures to determine the capability of cable screens to withstand fault currents from internal failures

1989

All Sections

ET112

Harmonic impedance of supply systems

1988

Section 7

ET113

Notes of guidance for the protection of private generating sets up to 5MW foroperation in parallel with Electricity Boards' distribution networks.

1989

G28/3

National Equipment Defect Reporting Scheme-notes of guidance

1989

G43/1

Instructions for reporting to the National Fault and Interruption Reporting Scheme

1984

P22

Code of practice procedure for advising customers on the unsuitability of water pipes for use as earth electrodes

1981

P23

Consumers' earth fault protection on single phase supplies up to 100A for compliance with the 15th edition of the IEE Wiring Regulations for Electrical Installations

P25

The short-circuit characteristics of Electricity Boards' low voltage distribution networks and the co-ordination of overcurrent protective devices on 240V single phase supplies up to 100A

1984

P26

The estimation of the maximum prospective short-circuit current for three-phase 415V supplies

R1/3

Immediate Notification of Dangerous and Potentially Dangerous Incidents and Changes in Operational Policy

1988