Generally speaking, DMC material design is fire-proof, but it is only a manual fire-proof experiment, and the real fire can't be prevented. Therefore, dmc material will lose its insulation performance when it is burned, while smc material is much better than DMC material in fire resistance. We should know that the flame retardancy and insulation of communication equipment in real life applications may be related to life problems. Keeping talking for one minute or dozens of seconds in the face of fire may save dozens of lives. Therefore, the flame retardant performance has become a crucial issue in the selection of materials.
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