ADS Environmental Services Model 3600 530002 A2 - Manual (Page 78)

5-4 ADS 3600 Flow Monitor O&M Manual
equipment can cause. This is a very reasonable request and should never be
ignored.
z Verify the minimum depth of the trenches as required by local codes. Local
authorities will verify the local code requirements for trenching depths. The
authorities will need to know that our trenches are being dug for cabling that
carries maximum voltages of
Y
9 Vdc for a communication cable and
Y
normal phone voltages for telephone service.
Pavement Box and Cable Trenching
Whenever possible, hire a subcontractor to dig the trenches and to install the pavement
box.
z When requesting estimates from subcontractors, give them the following
information:
Y
the pavement box location,
Y
a confirmation that all underground services have been located and marked,
Y
the name of their contact with your group,
Y
the location of the telephone service source,
Y
the location of the manhole,
Y
the burial depth of the cables/conduits,
Y
the sizes of the conduits (if required),
Y
the overall site plan, and
Y
the drawings of the site plan.
z Because the trench for the cables will be permanently covered with concrete or
asphalt when the subcontractor's job is completed, always install conduit so
cables can be replaced if defects occur.
z Some of the work installing the conduit will be inside the manhole. Inform the
subcontractor that they will not be expected or permitted to enter this area.
ADS or the system owner will provide the safety-approved labor for any
confined space tasks.
z Obtain the subcontractor's insurance information. Explain that all permits for
road openings, traffic control, site reinstatement, etc., are the subcontractor’s
responsibility.