Fibre optic interconnecting devices and passive components. Basic test and measurement procedures. Examinations and measurements - Directivity of fibre optic branching devices Ingestion-build-137917 It identifies electrical loads defined

It identifies electrical loads defined as life safety and fire-fighting and the factors to be accounted for by the engineer when selecting and specifying the performance requirements of the electrical distribution system needed to maintain circuit integrity under defined fire conditions for a specified period

and retains strength and form at hot temperatures

selection and general design considerations

— battery chargers for emergency lighting (IEC 60598-2-22)

and other forms of measure

Fibre optic interconnecting devices and passive components. Basic test and measurement procedures. Examinations and measurements - Directivity of fibre optic branching devices Ingestion-build-137917 It identifies electrical loads defined