L68B3 Mast Section Under what circumstances, tower crane beyond the service life, still can continue to use?
Tower Crane Service Life, published date: 2013-04-0309:34:10 Tower Crane Service Life how to provide? According to "the Ministry of Construction on the release of construction cause something fifteen something to promote the application and restrictions on the use of technology in the first batch of the notice" No. 659, the construction tower crane for the following years of use:
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The following three categories of tower cranes, the Tower Crane shall not be used until it has passed the assessment by a qualified assessment body after it has exceeded the service life stipulated in its operation manual. 630 kn. M below does not contain 630 KN.M, factory years over 10 years does not contain 10 years tower crane; 2. 630 ~ 1250 Kn. M does not contain 1250 KN.M, factory years over 15 years does not contain 15 years tower crane; 3. 1250 KN. Tower cranes with M or above and with factory life exceeding 20 years do not include tower cranes with 20 years. If the service life stipulated in the operation manual of the tower crane does not conform to the above-mentioned provisions, it shall be carried out according to the service life stipulated in the operation manual.
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