Formal and legal basis
The issues of ensuring sufficient water resources for purpose of firefighting and necessary technical means for its use in the event of a fire are defined by the Regulation of the Minister of Interior and Administration of June 7, 2010 on fire protection of buildings, other structures, and areas. According to §18.1. Regulations: in buildings, the following types of water supply are used for firefighting purposes:
- internal fire hydrants with a semi-rigid hose with a nominal hose diameter of 25 mm and 33 mm, hereinafter referred to as “25 hydrant” and “33 hydrant” respectively,
- internal hydrant with a flat-folded hose with a nominal hose diameter of 52 mm, hereinafter referred to as “52 hydrant”.
Pursuant to the Regulation, in multi-parking garages, internal hydrants 33 are commonly available, using the guaranteed water resources in the amount of 90 l/min, or optionally 52 hydrants with a capacity of 150 l/min provided for 60 minutes, with a minimum supply pressure of 2 bar.
The i-Sprink kit, operating in automatic or manual mode, has the same efficiency, and water consumption equivalent to the expenditure of one hydrant, i.e. 1.5 l/s = 90 l/min = 5.4 m3/h, the spraying intensity is 5 mm/min∙m2. Regardless of the mode of operation, the full functionality of all internal fire hydrants in the building is maintained in accordance with the Regulation of the Minister of Interior and Administration of June 7, 2010 on fire protection of buildings, other structures, and areas.