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Pinchin Environmental Newsletter (PEN #21)
Environmental Compliance
for Emergency Power Generators
Tables & Figures
Table 1: NPC-205 and NPC-232 Sound Level Limits for
One Hour Leq (dBA) or Llm (dBAI) |
Time of Day |
Class 1 Area
(Urban) |
Class 2 Area
(Suburban) |
Class 3 Area*
(Rural) |
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* within 30 metres of dwelling
Table 2: MOE Acoustic Assessment Report Requirements
Emergency Generator
Installed Location
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Distance from generator air intake or exhaust louvers, or
exhaust stack, to nearest residential property line( metres) |
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Inside Building
(i.e. penthouse) |
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Outdoors in an Enclosure |
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Figure 1: |
Acoustic audit is not required if the distance between an internally housed emergency generator and off-property receptor exceeds 20m. |
Figure 2: |
Acoustic audit is not required if the distance between an outdoor emergency generator (housed in an enclosure) and off-site receptor exceeds 60m. |
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