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

Technical Requirements for Customers’ Export and Import Limitation Schemes

Insulated sheath power cable systems

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

Typical schematic designs for protection and control of equipment installations

Reporting of IIG Banks, emissions and recoveries

Switchgear for use on 66 kV to 132 kV distribution systems

Switchgear for use on 66 kV to 132 kV distribution systems

Testing methodologies for power electronic devices

Portable earthing equipment for overhead lines and substations

Engineered poles and associated products for overhead lines

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

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

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

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

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

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

Complexity of Distribution Circuits Operated at or above 22kV

DC trip relays associated with a tripping function in protection systems

Switchgear for use on 66 kV to 132 kV distribution systems
Part 2 Gas-insulated metal-enclosed switchgear

Ground-mounted (Prefabricated), CEADS (Package), Distribution Substation Equipment Requirements

Special backfill material for cable installations

Type tests for connectors for copper and aluminium conductors of insulated power cables

Use of Mechanical Harvesters in Vegetation Management

Design guide and technical specification for overhead lines above 45 kV

Part 1 Design basis and electrical requirements

Steelwork for Overhead Lines

Fault level management

Document catalogue system test document

Performance criteria for fall prevention/fall arrest devices for use on poles whilst ascending and descending and when at the work position

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

Issue 1 Amendment 8

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

Procedure to meet the requirements on IEC 60909 for the calculation of short-circuit currents in threephase AC power systems Effective from 1st July 2021

Lightning protection for networks up to 132 kV

Time fuse-links for use with current transformer trip release coils on circuit-breakers

The application of fuse-links to 11 kV/400 V and 6.6 kV/400 V underground distribution networks

Fault Throwers

Pole Mounted Circuit-breakers & Metal Enclosed Disconnectors

Digital communications services for teleprotection systems

Communications bearers used for the provision of teleprotection channels

Guidelines for Whole Electricity System Investment Planning

Technical specification for plastic ducts for buried electric cables

Pole Mounted, Non-Enclosed: Switch Disconnectors, Disconnectors, Earthing Switches, Fuse Switches (Expulsion fuses), Solid Links and Automatic Sectionalising Links (ASLs)

Selection and treatment of wood poles and associated timber for overhead lines

Voltage testing devices

Guidance on transferred voltages from earthing systems

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 the ENA Member Companies

Part 2D: Procedure for the conformity assessment of protection products

Protection of telecommunication lines from power lines (2018) Amendment 1 (2020)

Specification for the supply, delivery & installation of land based power cables with operating voltages in the range 11 kV to 400 kV and associated auxiliary cables

Terminating equipment for pilot cables subject to induced transient voltages exceeding 650 V r.m.s.

Distribution transformers
Part 2 Ground mounted transformers—not close-coupled

Distribution transformers
Part 3 Ground mounted transformers—close-coupled

Anti-climbing measures and safety signs for overhead lines

Type Approval Tests for Accessories for 600/1000 Volt Cable Systems

Telecommunication Providers and Distribution Network Operators joint use of poles

Instantaneous high-impedance differential protection

Air break switch disconnectors and expulsion fuses: Recommendations

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)

Process for the connection of harmonic sources and/or resonant plant in accordance with EREC G5

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

Functional Test Requirements – Loss of Mains Relays

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.

Insulating foam-filled tube and solid rod for live working

Air Break Switch Disconnectors: Recommendations

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

Overhead Line Clearances

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)

Safe tree working in proximity to overhead electric lines.

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

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

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

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

ENA Protection Assessment - Functional Test Requirements - Distance Protection

ENA Protection Assessment - Functional Test Requirements - Feeder Unit Protection

ENA Protection Assessment Functional Test Requirements - Transformer Protection

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

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

Protection of cable installations against the effects of fire

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

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

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

Portable earthing equipment for open type HV apparatus in substations

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

Complexity of 132 kV circuits

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

Issue 1 Amendment 8

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

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

Analysis Package For Assessing Generation Security Capability - Users' Guide

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

Amendment 7

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

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

Security of Supply

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

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

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

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

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

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

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

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

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

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

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

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

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

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