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NG DH 10

Design Handbook - Electricity Substation Construction Civil, Structural and Building Engineering

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Organization: NG
Publication Date: 1 April 2013
Status: active
Page Count: 43
scope:

INTRODUCTION

This document details mandatory prescriptive and functional requirements and/or performance characteristics relating to new build and existing 'Civil, Structural and Building Engineering' assets forming part(s) of substation construction projects. It is an elaboration on, and shall be read in conjunction with, all relevant National Grid standards as appropriate. 

Design work shall comply with all appropriate National Grid Technical Specifications (NGTS's and TS's), British Standards, European Standards and Codes of Practice as appropriate and be in accordance with recognised analytical methods. It is noted that there are several National Grid standards which, whilst not explicitly associated with Civil, Structural and Building Engineering nonetheless contain requirements which may impact on aspects of such designs. For example earthing requirements will, in certain configurations, be applicable to fencing and handrail installations. It shall be the designer's responsibility to ensure a holistic design solution is achieved. 

The term 'Civil, Structural and Building Engineering' shall apply to the design, manufacture, installation and demolition of the following permanent works items:

• Access roads

• Footpaths

• Drainage

• Oil containment works

• Fencing

• Site security

• Surfacing

• Service ducts and trenches

• Buildings

• Site and Building services (excluding electricity and telecommunications services)

• Foundations • Piling works

• Earthworks

• Ground Improvement/Stabilisation

• Plant support structures

• Holding down systems

• Fire protection & control

• Cable Tunnels

• Acoustic enclosures

• Site Lighting

• Landscaping

• Other enabling infrastructure (Operational & Non-operational) - e.g. retaining structures, bridges, culverts etc. 

Unless stated to the contrary this scope shall also apply to all surveys, site investigations, condition assessments and temporary works necessary to facilitate the construction of these items. It shall additionally apply to the design only of the structural integrity of all items not specifically listed above. This includes all electrical components such as plant, busbars, clamps etc. 

Where the terms 'Civil', 'Civil Engineering' or similar are used in any contractual context they shall be deemed to mean 'Civil, Structural and Building Engineering' as defined in this document. 

Where there is conflict between the requirements in this document and any other National Grid specifications this document shall generally take precedence otherwise the more demanding standard shall always apply. 

All drawings shall be annotated with cross-references to the appropriate specification clauses.

The designer shall ensure that in all instances new and existing works do not compromise each other either functionally or aesthetically. 

Any reference made in this document to a requirement for NG approval shall be taken to mean whichever 'Client side' Design Assurance process is appropriate at the time of contract award. 

All construction work shall be classed as 'new build' unless specifically identified as otherwise and as such shall be in accordance with all appropriate standards at the time of contract award.

Document History

NG DH 10
April 1, 2013
Design Handbook - Electricity Substation Construction Civil, Structural and Building Engineering
INTRODUCTION This document details mandatory prescriptive and functional requirements and/or performance characteristics relating to new build and existing ‘Civil, Structural and Building...

References

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