Fire testing device and method

A fire testing device for testing fire-resistance properties of a test subject, said fire testing device comprising:

• a cavity;
• a heat source adapted to heat said cavity;
• and
• a separation plate configured to subdivide the cavity into a first chamber and a second chamber;
• wherein said heat source is arranged in said first chamber and is adapted to preheat said first chamber;
• wherein said second chamber comprises an opening adapted to receive the test subject,
• wherein said separation plate is configured to be removable from said cavity,
• wherein the fire testing device further comprises a gas pressure regulator inside said cavity;
• and wherein the gas pressure regulator comprises a valve arrangement configured to admit a pressurized gas into said cavity.

A method for testing fire-resistance properties of a test subject comprising:

• providing a fire testing device comprising a cavity and a heat source adapted to heat said cavity;
• subdividing said cavity into a first chamber and a second chamber by activating a removable separation plate;
• arranging the test subject at an opening of the second chamber;
• pre-heating said first chamber to a defined temperature using said heat source;
• deactivating said removable separation plate, thereby providing an undivided cavity;
• and
• sustaining a heat supply to said cavity using said heat source.