Gaseous media fire-extinguishing systems. Physical properties and system design. Scaling factors for Class B fuels other than heptane Ingestion-build-137917 BS 9720 on custom-built transformers

BS 9720 on custom-built transformers is helpful for:

Clause 3 has been revised

In order to assess the operational performance of HVDC transmission systems

This does not preclude measurements on systems with lower impedance

cleaning agents

Gaseous media fire-extinguishing systems. Physical properties and system design. Scaling factors for Class B fuels other than heptane Ingestion-build-137917 BS 9720 on custom-built transformers1 Scope This Technical Specification establishes an alternative method to ISO 14520 1: 2006, 7. 5. 1. 2 for determining design concentrations applicable to various gaseous extinguishants for Class B fuels other than heptane.