Siemens TL.. Instrukcje Operacyjne Pobierz pdf (Strona 17)

Application

3.4 Medium-voltage components

Figure 3-6 Pressure relief for medium-voltage switchgear

Covers for pressure relief openings and associated air channels, expanded metal grids, etc., are not part

of the switchgear and shall be provided by the customer.

The dimensions of the room and the necessary pressure relief openings depend on the type of

switchgear and the amount of short-circuit current.

If pressure relief openings are required, these are to be arranged such that, based on their function

(blowing out in the event of an arc) there is only a minimal risk of personal injury and property damage.

The transformer room must be well ventilated and offer the necessary electrical clearances.

The relevant fire safety and environmental regulations are to be observed depending on the type of

transformer (oil or resin transformer).

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Siemens TL.. Instrukcje Operacyjne Strona 17