JZCJ型灯丝转换继电器底座是硬胶木结构 ,材质本身既薄又脆 ,在现场使用时 ,直接用 2条木螺钉或螺丝固定在器材箱内木板上或铁质信号机构门内 ,由于固定部位很难保证完全平整 ,也就不能与器材底座表面完全接触 ,造成底座受力不均而出现裂纹或断裂 ,影响正常使用。现采取在器材 JZCJ-type filament relay base is hard bakelite structure, the material itself is thin and brittle, the use of the scene, the direct use of two wood screws or screws in the equipment box wood or iron signal agencies door, the fixed part is very Difficult to ensure complete formation, it can not fully contact with the surface of the base equipment, resulting in uneven cracking of the base or cracks occur, affecting the normal use. Now taken in equipment