NG TGN(E) 291
Technical Guidance Note - Calculation of Indicative Fire Damage Zone
|Publication Date:||1 May 2016|
PURPOSE AND SCOPE
The purpose of this document is to provide operational guidance on how to calculate an indicative Fire Damage Zone on Fire hazard equipment at National Grid Electricity substations. Fire hazard equipment includes the following as detailed in TS 3.01.03 Clause 2.1.
- Oil-filled Transformers
- Oil-filled Reactors
- Diesel Generators
- Oil Storage Tanks (Including Fuel Oil)
- Oil Circuit Breakers
- Oil Handling Plant
The scope is limited to existing equipment and should not be used to determine Fire Damage Zones for new installations.
Please consult TS 3.01.03 Limitations of Fire Risk in Substations for detailed treatment of fire hazards.