Belt Calibration checks the wire thickness, thickness found enough to make up for re-jet spray or shoveled away with a hammer percussion hollowing inspection found hollowing should re-sprayed.
用带刻度的钢针抽查厚度，如发现厚度不够，补喷或铲掉重喷，用锤子敲击检查空鼓，发现空鼓应重喷。
2
Grounding electrodes connection, with stainless steel belt and threading pipe, the introduction of inspection Wells, the construction unit of the azimuth, depending on the actual conditions.
接地极连接，用不锈钢带和穿线管，引入检查井的方位，由施工单位，视现场实际情况确定。
3
To allow for easy access and serviceability, the inspection port doors are hinged as a standard on belt guards.