Reporting of IIG Banks, emissions and recoveries

Typical schematic designs for protection and control of equipment installations

Security of Supply

Complexity of Distribution Circuits Operated at or above 22kV

Structural testing of wood poles prior to climbing or use as a personal support

Overhead line conductors - protection against corrosion by the application of anti-corrosion grease during manufacture

Issue 1 - Amendment 9

Requirements for the connection of generation equipment in parallel with public distribution networks on or after 27 April 2019

Issue 1 - Amendment 7

Requirements for the connection of Fully Type Tested Micro-generators (up to and including 16 A per phase) in parallel with public Low Voltage Distribution Networks on or after 27 April 2019

Guide to the assessment of power system products for use by the ENA Member Companies
Part 2A: Procedure for the conformity assessment of switchgear products

Guide to the assessment of power system products for use by ENA Member Companies
Part 1: Common principles for the conformity assessment of products

Guidance on working with Insulation and Interruption Gas (IIG) and gas mixtures in high voltage switchgear of rated voltage up to and including 145 kV

National Equipment Defect Reporting Scheme (NEDeRS®) – Notes of guidance

National Equipment Defect Reporting Scheme (NEDeRS®) – Notes of guidance

Requirements for the Application of Protective Multiple Earthing to Low Voltage Networks

Requirements for the Application of Protective Multiple Earthing to Low Voltage Networks

Engineering Recommendation G100 Issue 2 Overview and Summary Guide

Technical Requirements for Customers’ Export and Import Limitation Schemes

Type approval tests for mechanical connections to metallic sheaths of cables

Insulated sheath power cable systems

Measures necessary to minimise corrosion damage to buried metallic structures by neighbouring cathodic protection installations

Guidance for the operation and management of fluid filled cables

Distribution cables of rated voltage 0.6/1/(1.2) kV with XLPE insulation, concentric waveform copper wire and solid aluminium conductors

Environmental classification and corrosion protection of structures, plant and equipment

Standard numbering for small wiring (for switchgear and transformers together with their associated relay panels)

Application of ancillary electrical equipment

Environmental test requirements for protection and control equipment and systems

Earth rods and their connectors

Stay strands and stay fittings for overhead lines

Specification for single circuit overhead lines on wood poles for use at 132kV

Specification for single circuit overhead pole lines for use at high voltage up to and including 33 kV

Engineered poles and associated products for overhead lines

Covered-conductors for overhead lines (having rated Voltages Uo/U greater than 0.6/1 kV up to and including 19/ 33 kV)

Insulated Aerial Bundled Conductors for Low Voltage Overhead Distribution Systems – Erection Requirements

Design and use of temporary scaffold guards and conductor support systems

Outdoor, free standing CTs & VTs up to 36 kV

Switchgear for use on 66 kV to 132 kV distribution systems
Part 4 Disconnectors and earthing switches

Switchgear for use on 66 kV to 132 kV distribution systems

Switchgear for use on 66 kV to 132 kV distribution systems

Portable earthing equipment for overhead lines and substations

Public Electricity Network Distribution Assemblies

400 V a.c. switchgear, controlgear and fusegear assemblies

Distribution transformers
Part 4 Pole mounted transformers

Insulated Foam-Filled Tube, Hollow Tube and Solid Poles/Rods for Live Working

Guidance on Neutral Current Diversion

Exemption from the Pressure Systems Safety Regulations 2000 (PSSR) for high voltage electrical apparatus containing alternative gases to SF6

Testing methodologies for power electronic devices

Guidance on the application of Engineering Recommendation P2, Security of Supply

Tests on power cables with XLPE insulation and metallic sheath and their accessories, for rated voltages of 66 kV (Um = 72.5 kV), 110 kV (Um 123 kV) and 132 kV (Um = 145 kV)

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

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

Complexity of 132 kV circuits

Complexity of Distribution Circuits Operated at or above 22kV

Structural testing of wood poles prior to climbing or use as a personal support

Overhead line conductors - protection against corrosion by the application of anti-corrosion grease during manufacture

Principles For The Planning, Connection And Operation Of Electricity Distribution Networks At The Interface Between Distribution Network Operators (DNOs) And Independent Distribution Network Operators (IDNOs)

Guidelines for the Provision of Low Voltage Connections to Multiple Occupancy Buildings

Procedure for the Conformity Assessment of Plant & Products for use by the Energy Networks Association Member Companies Part 2d: General Description and Information for Suppliers of Products and Systems

Procedure for the Conformity Assessment of Plant & Products for use by the Energy Networks Association Member Companies Part 2a: Procedure for the Conformity Assessment of Switchgear.

Procedure for the Conformity Assessment of Plant & Products for use by the Energy Networks Association Member Companies

Procedure to meet the requirements of IEC 909 for the calculation of short-circuit currents in three-phase AC power systems

Safe tree working in proximity to overhead electric lines.

Planning Levels for harmonic Voltage Distortion and the Connection of Non-Linear Equipment to Transmission Systems and Distribution Networks in the United Kingdom

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

Operational procedure associated with electricity supplies for traction purposes on AC and DC electrified lines

Air Break Switch Disconnectors: Recommendations

Requirements for the Application of Protective Multiple Earthing to Low Voltage Networks

Type approval tests for mechanical connections to metallic sheaths of cables Addendu

Measures necessary to minimise corrosion damage to buried metallic structures by neighbouring cathodic protection installations

Guidance for the operation and management of fluid filled cables. This document replaces ETR 135.

Distribution cables of rated voltage 0.6/1/ (1.2) kV with XLPE insulation, concentric waveform copper wire and solid aluminium conductors

Environmental classification and corrosion protection of structures, plant and equipment

PVC and XLPE Insulated Concentric service cables with stranded copper or solid aluminium phase conductors and copper concentric neutral conductors

Single core cables for use in substations having extruded insulation and rated voltages of 6350/11 000 volts, and 19 000/33 000 volts

Functional Test Requirements – Loss of Mains Relays

ENA Protection Assessment Functional Test Requirements - Transformer Protection

ENA Protection Assessment - Functional Test Requirements - Feeder Unit Protection

ENA Protection Assessment - Functional Test Requirements - Distance Protection

Environmental test requirements for protection and control equipment and systems

Stay strands and stay fittings for overhead lines

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

Overhead Line Clearances

Specification for single circuit overhead lines on wood poles for use at 132kV

Specification for single circuit overhead lines on wood poles for use at high voltage up to and including 33 kV

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

XLPE covered-conductors for overhead lines (having rated voltages Uo/U greater than 0.6/1 kV up to and including 19/33 kV)

Specification for single circuit overhead lines of compact covered construction on wood poles for use at high voltage up to and including 33 kV

Fittings for covered conductors for overhead lines (having rated voltages U0/U greater than 0.6/1 kV up to and including 19/33 kV)

Insulated Aerial Bundled Conductors For Low Voltage Overhead Distribution Systems – Erection Requirements

Design and use of temporary scaffold guards and conductor support systems

Power installations exceeding 1 kV a.c. – Design of high-voltage open-terminal stations

Switchgear for use on 66 kV to 132 kV distribution systems Part 6 Disconnecting circuit-breaker with an integral earthing switch

Switchgear for use on 66 kV to 132 kV distribution systems Part 5 Inductive voltage transformers, capacitor voltage transformers, combined unit transformers and current transformers for use on 72.5 kV to 145 kV distribution systems

Switchgear for use on 66 kV to 132 kV distribution systems (Disconnectors and earthing switches)

Switchgear for service up to 36 kV (Cable and Overhead conductor connected)

Portable earthing equipment for overhead lines and substations

Portable earthing equipment for open type HV apparatus in substations

Partial discharge testing of bushings, capacitors, instrument transformers and switchgear of rated voltage 7.2 - 420 kV inclusive

Distribution transformers - Part 4 Pole mounted transformers

Insulating foam-filled tube and solid rod for live working

Polyethylene Warning Tape, Polyethylene Protection Tape and Polyethylene Protection Tiles for Buried Electricity Supply Cable

Guide to the application of Engineering Recommendation G5/4 in the assessment of harmonic voltage distortion and connection of non-linear equipment to the electricity supply system in the U.K

Calculation of fault currents in three-phase AC power systems (Application Guide to Engineering Recommendation G74)

Protection of cable installations against the effects of fire

A guide for assessing the rise of earth potential at electrical installations

Voltage fluctuations and the connection of disturbing equipment to transmission systems and distribution networks in the United Kingdom

Security of Supply

EREC G99/NI - Northern Ireland Only

Requirements for the connection of generation equipment in parallel with public distribution networks in Northern Ireland on or after 27 April 2019

Issue 1 Amendment 4 
Requirements for the connection of generation equipment in parallel with public distribution networks on or after 27 April 2019

Guidelines for the Provision of Low Voltage Connections to Multiple Occupancy Buildings

Issue 2 Amendment 3 
Recommendations for the Connection of Type Tested Small-scale Embedded Generators (Up to 16A per Phase) in Parallel with Low-Voltage Distribution Systems

Framework for contestable diversionary and reinforcement works not exceeding 33 kV - Part 7 Contestable diversionary and reinforcement works

Framework for new industrial and commercial underground connections - Part 6 Installation and records

Framework for new industrial and commercial underground connections - Part 5 Materials specification

Framework for new industrial and commercial underground connections - Part 4 Design and planning

Framework for new low voltage housing development installations - Part 3 Installation and records

Framework for new low voltage housing development installations - Part 2 Materials specification

Framework for new low voltage housing development installations - Part 1 Design and planning

Amendment 7

Recommendations for the Connection of Generating Plant to the Distribution Systems of Licensed Distribution Network Operators

Harmonic voltage distortion and the connection of harmonic sources and/or resonant plant to transmission systems and distribution networks in the United Kingdom

Harmonic voltage distortion and the connection of harmonic sources and/or resonant plant to transmission systems and distribution networks in the United Kingdom

Guidelines for the design, installation, testing and maintenance of main earthing systems in substations

Analysis Package For Assessing Generation Security Capability - Users' Guide

Analysis package for assessing the security contribution from distributed generation and electricity storage systems – Users’ guide

Guidance on the application of Engineering Recommendation P2, Security of Supply