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Glass Protection Systems

     
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The Building Regulations require certain elements of structure to have fire resistance for a specified minimum period of time. The amount of fire protection to achieve this depends on the following:

   
   
 

1) Duration of fire resistance specified

2) Type of protection used

3) Perimeter of the steel section exposed to fire

4) Shape and size of the steel section

   

To determine how these factors affect fire resistance, all Promat products and systems have been tested at accredited laboratories to a variety of standards, e.g. BS 476: Part 21, AS 1530: Part 4, DIN 4102 and ASTM E119.

   

Tests in accordance with BS 476 : Part 21 have been performed on loaded beams and columns clad with fire protection material. Steel surface temperatures are monitored with thermocouples to assess the performance of the cladding, since steel fully stressed in accordance with BS 449 or BS 5950, Part 1, begins to lose its design margin of safety at temperatures around 550°C.

   

A range of unloaded sections have also been tested to obtain data for calculating analytically, with the aid of a computer, exactly how much protection is needed for the most common steel sections and for providing fire resistance for different time periods.

   
   
 

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