All
anchors should be checked before use.
Twist the anchor using the fingers, while observing any movement.
Slight flexing or rotational movement (+/-1mm) of the anchor is
acceptable.
The following points should be checked before using or loading the
anchors:
·
Looseness or fractures of the rock in which the anchor is placed.
· Grooves
or abrasion inside the curvature of the anchor. i.e. the inside
contact area of the anchor.
· Obvious
damage to the anchor or placement from rock fall.
· Excessive
rotation of the resin within the drilled hole.
· Rotation
of the anchor within the resin. · Fracturing of the rock within
20cm of the anchor placement.
· Egress
of the anchor from the resin or the resin from the drilled hole.
Should
any of the above defects be noticed, you should contact the anchor
co-ordinator at the address on page 2, rigging guide No. 2 or fill
in a defective anchor report sheet at the back of rigging guide
No.3 and send it to the address shown. All defective anchors reported
are checked within 5 days.
The following information is required when reporting suspected defective
anchors:
- Name
of cave.
- Route
on which defective anchor is.
- Traverse
or pitch number/name.
- Anchor
number, counting from the start of that group of anchors.
Note:
Due to the cost of installing Eco anchors (£5 per placement) and
the amount of good useable limestone at pitch heads, the anchors
have been installed so that all cave users, whether SRT, ladder
and lifeline or pull through can use them. Attempts have been made
to avoid over rigging and to encourage the use of available natural
belays where possible. In areas where there appears to be excessive
numbers of Eco anchors, they have been installed in addition for
ladder and lifeline techniques or to facilitate rescues. When Eco
anchors are used for ladder and lifeline it is essential that pulleys
are used, the rope must not be pulled when loaded through the anchor
as this will cause premature wear on the contact area.
The Eco anchor has been approved by the National Caving Association
as a fixed anchor to ensure the safe descent and ascent of caves
and potholes. All enquiries regarding fixed anchors should be addressed
to the regional secretary, address in CNCC handbook page 3:7 and
3:23.
A
number of the popular caves have pieces of old rope and slings 'tat'
left in them by previous parties.
DO
NOT be tempted to use them even if they look safe. Take and
use your own, then remove them after the trip.
Andy
McCarron...
andy.mccarron@yss.uk.com
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