Annex 1 Standards

Annex 2 Standards

Annex 2 Standards

An electricity industry national standard that has a material effect on Users but does not implement any Distribution Code requirements and does not form part of the Distribution Code technical requirements.

1. Engineering Recommendation G81 – Parts 1-7

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

2. Energy Networks Association - Distributed Generation Connection Guides

2024 DG Guides Combined Document

3. Engineering Report 131 Issue 3

Analysis Package for Assessing Generation Security Capability – Users’ Guide

4. Engineering Recommendation G12 Issue 5

Requirements for the application of protective multiple earthing to low voltage networks

5. Engineering Recommendation P25 Issue 2

The short-circuit characteristics of single-phase and three-phase low voltage distribution networks

6. Engineering Recommendation P18 Issue 2

Complexity of Distribution Circuits Operated at or above 22kV

7. Engineering Recommendation G87 Issue 2

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

8. Technical Specification 41-24 Issue 2

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

9. Engineering Recommendation S34 Issue 2

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