电缆保护 MPP 管咋查内壁?光滑度要求​

2025-09-29

在电缆保护工程中,MPP管的质量至关重要,而内壁情况是影响其性能的关键因素之一。那么,电缆保护MPP管咋查内壁呢?

首先,可通过肉眼观察。在光线充足的环境下,将MPP管放置在平整处,仔细查看内壁是否有杂质、气泡、裂痕等明显缺陷。

其次,触摸检查。戴上干净的手套,用手指缓慢、轻柔地在内壁滑动,感受其是否光滑,有无凸起或凹陷。

对于光滑度要求,一般来说,优质的电缆保护MPP管内壁应光滑平整,无明显粗糙感。这是因为光滑的内壁能减少电缆穿管时的摩擦力,避免电缆表皮受损,同时也有利于电缆的散热,延长电缆使用寿命。若内壁粗糙,不仅会增加施工难度,还可能在长期使用中对电缆造成磨损,影响电力传输的稳定性和安全性。

在检查过程中,若发现内壁存在问题,应及时与供应商沟通,必要时可要求重新检测或更换管材,以确保电缆保护工程的质量。



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