![Highway Care BG800 Скачать руководство пользователя страница 32](http://html1.mh-extra.com/html/highway-care/bg800/bg800_product-and-installation-manual_2130918032.webp)
ENGINEERING YOUR SAFETY
WWW.HIGHWAYCARE.COM
Rev. C
–
10/18
©2018 Highway Care Limited. All Rights Reserved.
Page
32
of
61
Single Sided Intermediate
Anchors
Highway Care crash tested single sided anchors
are typically used where there is an excavation
very close to the BG800 that undermines the
strength of the normal anchoring position.
These attach to the barrier in the same way as
the standard intermediate anchors.
Highway Care BG800 Single Sided Anchor
These must be anchored on the traffic face
using both anchoring locations and are not to be
used when BG800 can be impacted from both
sides or when screen is attached on top of the
BG800.
Note: A bow tie anchor anchored on one side can
also be used for single sided anchoring. Please
contact Highway Care for advice about further
intermediate anchoring options.
Drilling for Anchors
Hole Sizes
Holes for securing BG800 are drilled 32mm
diameter for the asphalt pins, 30mm for
mechanical anchor bolts and 28mm diameter
for resin anchors.
Note: Always follow the installation instructions
supplied by the fixing manufacturer.
Using Hammer Drill
A commonly used drill is a Hilti TE 76 ATC. The
ATC in its name refers to the system which stops
the drill spinning round if the drill bit jams while
drilling. If other drills are used these may not
have this protection. The Hilti TE 70 series takes
drills with the SDS MAX connection. There are
several connection systems, check when
preparing equipment that the drill bit fits the
drill. Normally take two of each size of drill bit
required. Before inserting the drill bit into the
drill chuck, wipe clean the mating part and, if a
SDS drill, grease with a small quantity of grease.
Drill bits wear. When blunt it is not worth re-
sharpening them as they will also have worn on
the diameter and will produce an undersized
hole.