3　Basic Requirement

3.0.1　Design documents and drawings shall be available for construction and self-examination，joint examination and technical interpretation of design intention shall be down for drawings.Installation of equipment shall meet the requirements of design documents.

3.0.2　Technical documents such as the construction organization design shall be prepared for mineral processing equipment installation engineering.

3.0.3　Without the design change notice or signed technical certificate from design organization，construction drawings shall not be modified.

3.0.4　The measuring instruments used for quality inspection shall have product certificates and used in their period of validity.

3.0.5　Welding procedure qualification shall be provided prior to welding work and welding procedure specifications shall be made according to a qualified welding procedure qualification report.

3.0.6　The construction road at the mechanical equipment installation site shall be clear；water，electricity，air and other resources for construction shall be available.

3.0.7　The quality of equipment foundation shall meet relevant requirements of current national standard GB 50204 Code for Construction Quality Acceptance of Concrete Structure Engineering and acceptance material and records shall be provided.

3.0.8　The mineral processing equipment installation engineering shall be carried out according to the required procedures，and handover inspection shall be made between different disciplines and records shall be made.Self-inspection，special inspection，and joint inspection shall be carried out for each process after completion and records shall be made.It is not allowed to proceed with the next one until previous process has been inspected to be qualified.

3.0.9　Concealed parts in concealed works shall be reported for inspection after they have been selfinspected.The next process shall not be carried out before they are qualified.

3.0.10　Special schemes shall be made for construction in winter and rainy periods.

3.0.11　Test run of equipment shall be in accordance with the following requirements:

1　Test run scheme shall be prepared before test run；

2　Warning lines and signs shall be set up in test run area；

3　The safety device of equipment shall be complete and work reliably；

4　Hydraulic，lubrication and cooling water system shall operate normally；

5　Each rotating part shall be operating smoothly without abnormal sound and fasteners shall not be loose；

6　The temperature rise and max temperature of the sliding bearing shall not exceed 35℃and 70℃respectively and that of the rolling bearing shall not exceed 40℃and 80℃respectively；

7　Each rotating part shall be running normally and the test run shall not be less than 2h after the bearing temperature is stable；

8　After the no-load test run，connecting bolts shall be checked for loosening，and if the bolts are loose，tighten them.