As a key equipment in the building electrical system, the fire resistance performance of the lighting ready boards with bulkhead is crucial, which directly affects the safety and reliability of the electrical system in the event of a fire. Fire resistance test is an important means to evaluate its fire resistance performance.

In the fire resistance test, the lighting ready boards with bulkhead needs to be placed in a test device that simulates a fire environment. Experiments are usually conducted according to relevant standards, such as IEC 61439-3, and specific temperature curves and durations are set. For example, within a certain period of time, the ambient temperature will rapidly rise according to a preset curve, simulating the high temperature scenario during a fire.

During the experiment, we will focus on observing multiple aspects of the lighting ready boards with bulkhead. One is the structural integrity of the box, checking for deformation, cracking, and other issues at high temperatures to ensure that the box can effectively protect the internal electrical components. The second is electrical performance, monitoring the working status of various wiring terminals, switches, etc. at high temperatures to see if there are any abnormal phenomena such as arcing and short circuits, ensuring that a certain level of electrical isolation and functionality can still be maintained in the event of a fire. The third is the fire and heat insulation performance, observing whether it can effectively prevent the spread of flames and heat transfer, and reduce the impact on surrounding combustibles.

To ensure the accuracy and safety of the experiment, the testing device needs to have a complete ventilation and smoke exhaust system to timely discharge the exhaust gas generated by combustion. At the same time, operators must strictly follow the operating procedures, take protective measures, and avoid accidents such as electric shock.

Through fire resistance testing, the fire resistance level of lighting ready boards with bulkhead can be accurately evaluated, such as N, NJ, NS, etc. This provides important basis for building electrical design and selection, ensuring that the lighting ready boards with bulkhead can maintain its function for a certain period of time in the event of a fire, providing necessary power support for personnel evacuation and fire rescue, and minimizing fire losses to the greatest extent possible.