Operator’s 履带起重机操作手册 Manual for Crawler Crane
3.7 Underground cables With special equipment, the crane can also be used for underground working.
3.7.1 In underground working, it is possible to damage: a)
Underground electric cables
b)
Gas pipes
c)
Telephone, TV, and data cables
d)
Sewage pipes, district heating supply pipes, etc.
WARNING (1) If a live underground cable is damaged, lives are at risk from electric shock. (2) There is an extreme danger of explosion and fire in the vicinity of a damaged gas pipe. Safety Guidelines
Measures to be taken during operational planning:
安 全 准 则
The construction company doing the work is responsible for gathering accurate information about possible underground cables within the working area of the equipment so that work can be done safely: a)
Obtain relevant information from the relevant utility companies.
b)
Examine the "as completed" plans of: 1)
Utility companies (electricity, gas and water)
2)
Cable users (telecom companies, factories, transport companies)
3)
Building authorities.
c)
Only use the latest and effective plans.
d)
If there are any deviations or extensions to a project, initiate new inquiries.
e)
If in doubt, localize the underground cables around the site using a locating device.
f)
The relevant utility companies, cable users and public authorities:
g)
–
Must be informed in good time about the start of the work.
–
Must be asked for written approval for the civil engineering work to be done.
When several construction companies are involved, their activities must be coordinated. All companies must have the same up-to-date information on underground pipes, etc. on the construction site.
3.7.2 Safety precautions and protective measures when operating the equipment near underground cables a)
Do not start work until you have obtained all the approvals from the utility companies and the cable users.
b)
The equipment operator must obtain all relevant information about the exact location of all underground cables before starting work. These plans must be readily accessible at the construction site.
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ZCC1100H Crawler Crane
