327 IAC 3-6-22 - Ventilation
Authority: IC 13-13-5; IC 13-14-8; IC 13-14-9; IC 13-15-1-2; IC 13-15-2-1; IC 13-18-2
Affected: IC 13-11-2; IC 13-15; IC 13-18
Sec. 22.
(a)
Ventilation shall be provided for all pump stations.
(b) No interconnection of ventilation systems
shall exist between wet wells and dry wells.
(c) All intermittently operated ventilation
equipment shall be electrically interconnected with the respective lift station
lighting systems.
(d) All manual
ventilation and lighting switches shall override any automatic
controls.
(e) All fan wheels shall
be fabricated from nonsparking material.
(f) Dry wells that are located underground
shall be provided with mechanical ventilation in accordance with the following:
(1) Continuous ventilation that provides at
least six (6) complete air changes per hour.
(2) Intermittent ventilation that provides at
least thirty (30) complete air changes per hour.
(3) A combined ventilation consisting of ten
(10) minutes of ventilation at a rate of thirty (30) complete air changes per
hour followed by an automatic switch to six (6) complete air changes per hour
may be used to conserve heat.
(g) Wet wells with screens or mechanical
equipment shall be equipped with permanently installed mechanical ventilation
in accordance with the following:
(1)
Continuous ventilation that provides at least twelve (12) complete air changes
per hour.
(2) Intermittent
ventilation that provides at least thirty (30) complete air changes per
hour.
(h) All pulleys and
belts shall be of a static electricity dissipating type.
Notes
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