Must accident exhaust fans be installed in high and low voltage substations?
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\"GB50053-2013 Code for Design of Substations of 20 kV and Below\", 6.3 Heating and Ventilation: Transformer rooms and distribution rooms should make use of natural ventilation; when natural ventilation is insufficient, mechanical ventilation should be installed. Are there any mandatory fire safety requirements that dictate the installation of accident exhaust fans?
According to the fire safety inspection, it is necessary to install accident exhaust fans
Could you please specify which fire safety regulation it is? Thank you!
\"DLT 5725-2015 Code for Construction of Substations for Power Users at 35 kV and Below\", 15.4.1.2 The distribution equipment shall be equipped with emergency exhaust fans that can provide at least 10 air changes per hour; such fans can also be used for normal ventilation purposes.