ERICO 3000 ERITECH SYSTEM - Manual (Page 25)

INSTALLATION, OPERATION AND MAINTENANCE MANUAL
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To bond the downconductor inside a
conductive non-ferromagnetic mast pipe
or conduit, secure two stainless steel cable
ties around the downconductor at every
1 m (40 in.) or at 2 m (80 in.) intervals
with their tails left on, alligned at 180°
to each other so that when fed into
the pipe, they maintain contact with
the inside wall of the pipe, (see figure
17). The maximum length of the cable
installed inside the mast pipe or conduit
should not exceed 35 m (114 ft). The 6 mm 2 (8 AWG) copper cable used to
connect the structure bonding braid to the
structure must be one continuous length.
Joins in this cable would represent a
potential maintenance issue.
Any metallic surfaces that the down-
conductor may be secured to, if possible,
should be electrically connected to the
structural steel work.
Also, when using a metallic mast (ie: free
standing light pole), the structure bonding
braid must be connected to the top of the
metallic mast using 6 mm
2 (8 AWG)
insulated copper cable, (see figure 17).
Metallic mast pipe or conduit
Downconductor
2 x stainless steel
cable ties at 180°
with tails left on
1 to 2 m (40-80 in.)
intervals as appropriate
reestandin metallic
mast where
downconductor
cannot be secured
to inside of mast
tructure bondin
cable attached to
top of freestandin
mast
Figure 17: Electrical bonding of downconductor within metallic mast section or pipe.