Engineering Documents (Purchase Online)

ENA is responsible for maintaining the industry-originated Technical Specifications and Engineering Recommendations schedule. Over 400 publications are available to buy through the ENA document catalogue.

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Engineering Documents (Free to Download)

These publications are free to download and use. However, please note these technical documents remain © Energy Networks Association and must not be altered in any way. 

Engineering Recomendation G85:
Issue 2: December 2007
Innovation in Electrical Distribution Networked Systems: A Good Practice Guide

Engineering Recommendation G81: Part 1 (Design and Planning)
Issue 2: Amendment 1 - January 2008
Framework for design and planning, materials specification, installation and record for low voltage housing development installations and associated new HV/LV distribution substations

Engineering Recommendation G81: Part 2 (Materials Specification)
Issue 1: Amendment 1 - January 2008
Framework for design and planning, materials specification, installation and record for low voltage housing development installations and associated new HV/LV distribution substations

Engineering Recommendation G81: Part 3 (Installation Records)
Issue 1: Amendment 1 - January 2008
Framework for design and planning, materials specification, installation and record for low voltage housing development installations and associated new HV/LV distribution substations

Engineering Recommendation G81: Part 4 (Design and Planning)
Issue 2: Amendment 1 - January 2008
Framework for design and planning of industrial and commercial underground connected loads up to and including 11kV

Engineering Recommendation G81: Part 5
Issue 1: Amendment 1 - January 2008
Framework for materials specifications for industrial and commercial underground connected loads up to and including 11kV

Engineering Recommendation G81: Part 6
Issue 1: Amendment 1 - January 2008
Framework for Installation and Records of Commercial and Industrial Underground Connected Loads up to and including11kV

Engineering Recommendation G81: Part 7
Issue 1: Amendment 1 - January 2008
Framework for contestable diversionary and reinforcement underground and overhead works not exceedng 33kV and HV/LVdistribution substations

Engineering Technical Report 136:
Issue 1 - June 2007

Vegetation management near electricity equipment - Principles of good practice