Stainless Steel and Corrosion Resistant Equipment

DOE-STD-1066-99

14.9.4

14.9.4.1

Stainless steel or noncombustible corrosion resistant equipment should be

provided for all ventilation metal parts required for fire protection where

components in the ventilation system are exposed to corrosive

atmospheres. They should be designed either with stainless steel or other

non-reactive materials to ensure their resistance to the harmful effects of

corrosion.

14.9.4.2

Stainless steel water spray heads and nozzles, piping and fittings in the

plenum, piping hangers in the plenum, demisters, and teflon coated heat

detectors are recommended.

14.9.4.3

Where a corrosion resistant or stainless steel fire protection product is

required and that product is not available as a listed product from any

manufacturer, the substitution of one product for another is acceptable

provided that the replacement product is equivalent, based on an

engineering analysis.

14.9.5

Lighting and Window Viewing Ports

14.9.5.1

Lighting should be provided inside the filter plenum in front or between the

filter banks in the area where automatic and manual heads and nozzles

are located. Such lighting may be provided with an on and off switch

provided that the switch is located outside the plenum at an accessible

location.

14.9.5.2

Window viewing ports made up of either wire glass, laminated lead safety

glass, or fire rated glass should be provided for viewing inside the filter

plenum. The window viewing ports should be provided at each location

where fire protection spray system heads and nozzles are located and

should be placed in such a way with enough windows so all heads and

nozzles are visible from outside the filter plenum.

14.10 Fire Hazard Analysis

It is not the intent of this Standard to prevent the application of alternative methods that

provide equivalent or superior fire protection for nuclear final filter plenums. Therefore,

equivalencies from fire protection guidelines provided in this section are permitted.

However, equivalencies should only be permitted when a documented fire hazard analysis

has been performed in accordance with DOE Orders (See also the DOE Fire Protection

Prgram Implementation Guide and the DOE Fire Protection Handbook.) and the FHA is

reviewed and approved by the AHJ.