电缆护层直接接地箱，内电部含有、连接铜排、铜端子等，用于电缆护层的直接接地,内部无需安装电缆护层保护器。电气绝缘性能好、介电强度高、抗漏痕、抗电蚀、耐热、耐寒、耐老化、防爆等优点及良好的化学稳定性、憎水性、密封性。电缆护层直接接地箱分单相直接接地箱、三相三线直接接地箱（平时简称的电缆护层接地箱）、三相六线直接接地箱。
Cable sheath direct grounding box, which contains, connects copper bars, copper terminals and so on, is used for direct grounding of cable sheath. There is no need to install cable sheath protector inside. Good electrical insulation, high dielectric strength, leak resistance, corrosion resistance, heat resistance, cold resistance, aging resistance, explosion-proof and other advantages, as well as good chemical stability, hydrophobicity, sealing. The cable sheath direct grounding box is divided into single-phase direct grounding box, three-phase three-wire direct grounding box (usually referred to as cable sheath grounding box), three-phase six-wire direct grounding box.