Velatia Ormazabal ormaset, Общее руководство по инструкции

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IG-049-EN version 02; 02/10/2017
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General Instructions
ormaset
Kiosk-type prefabricated transformer substation
Installation
9.4. Preparing the ground
9.4.1. Excavation drawings
For the installation of
ormaset
, an excavation is required
[1]
,
with the dimensions recommended in the following table:
Excavation dimensions [mm]
Length
5675
Width
4270
Depth
950
Table 9.1.
Excavation dimensions
1
Perimeter pavement
2
Levelling area
Figure 9.1. Detail of ormaset excavation dimensions
Please enquire if installing on slopes
Dimensions in mm.
9.4.2. Safety recommendations
All actions and procedures must be carried out in
accordance with the General Safety Plan. There must be a
person designated as the Prevention Resource throughout
the duration of the activity on site.
The minimum health and safety requirements for
construction work should be considered when preparing
the ground. Among others:
• Before beginning to open, carry out a preliminary study
of the ground to know its stability and the possible
existence of conduits.
• Avoid accumulating excavated material and equipment
next to the edge of the excavation, taking the necessary
precautions to prevent the walls from caving in and
materials falling inside.
• In general, keep a 3 m area around the excavation free of
materials and vehicle traffic.
• In the case of rain and puddles, carefully inspect the
excavation with qualified technicians before resuming
the work. Carry out immediate pumping out of water
that may be present inside the excavation in order to
prevent the stability of the slope from being altered.
• Engine-driven machines that generate gases such
as carbon monoxide must not be placed inside the
excavation unless adequate equipment is used to
extract the gases.
• The operators that work inside the excavation must be
properly trained and informed and must use a safety hat
as well as the appropriate protective clothing for each
specific hazard.
[1] See section 9.6.3 of this General Instructions manual, "External earthing circuit"