Synthesize good branch cable in advance of performance

The utility model discloses a synthesize good branch cable in advance of performance, it includes main cable, through the branch line cable that branch connection spare and main cable are connected, locates to be equipped with branch's sheath at main cable and branch line cable junction, insulating flame retardant coating, basalt fiber that a plurality of cable cores of main cable, cable core periphery are equipped with the inorganic material filling layer in proper order, formed by the mica draw up jacket layer, metal level and silicone rubber sheathing layer, the inorganic material filling layer is magnesium hydroxide, aluminium hydroxide or hydration aluminum potassium sulfate. Set up the inorganic material filling layer, it can release vapor when being heated the certain degree to play the effect of cooling, set up the silicone rubber sheathing layer, thermal -insulated effect is more outstanding, having set up the mica plus having woven the fire resisting construction on basalt fiber layer, made insulatingly and fire -resistant uniting, the effect is better, the metal level that sets up, metallic sheath can play furthest's guard action to inner structure promptly, the utility model discloses it is convenient to manufacture.