During and after the construction and installation of some central air conditioning projects, some equipment parts (damage to some parts of the equipment, damage to the insulation layer, deformation of the equipment, etc.) and various pipes are damaged due to the failure to take protective measures for the installed equipment and ventilation and smoke exhaust pipes, In severe cases, the system can not even operate normally.

原因：

reason:

（1）由于現在的項目工期都比較緊張，為了抓工程進度，經常都是幾個工種同時交叉施工。而各工種施工人員為了趕自己工種的進度，因各種原因對其它工種的已安裝設備和管道等造成損壞。

(1) Due to the tight construction period of the current project, in order to grasp the project progress, several types of work are often cross constructed at the same time. In order to catch up with the progress of their own work, the construction personnel of various types of work cause damage to the installed equipment and pipelines of other types of work for various reasons.

（2）在工程的施工過程中由于有些現場施工人員的素質低下，對設備和通風排煙管道等造成 人為的破壞。有時甚盜 取設備或一些值錢的設備和管道（如銅管），例如機組的銅管被截斷盜 取等，造成機組的損壞。有些施工人員為了圖方便，甚踩在已安裝設備或管道上，造成設備損壞或管道的變形等。

(2) During the construction of the project, due to the low quality of some on-site construction personnel, man-made damage to equipment and ventilation and smoke exhaust pipes. Sometimes even steal equipment or some valuable equipment and pipelines (such as copper pipes), such as the copper pipes of the unit are cut off and stolen, resulting in the damage of the unit. For the convenience of drawing, some construction personnel even step on the installed equipment or pipeline, resulting in equipment damage or pipeline deformation.

（3）在設備安裝后沒有采取防護措施，在交叉施工中機組受損。安裝公司從外面請的有些施工安裝人員保護設備意識淡薄，只注重自己的工作進度，不注重保護設備及相關管道。

(3) No protective measures were taken after equipment installation, and the unit was damaged during cross construction. Some construction and installation personnel invited by the installation company from outside have weak awareness of equipment protection, only pay attention to their own work progress, and do not pay attention to the protection of equipment and related pipelines.

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