CATS Cabling, Bracing, and Support 2

Question 1

What is the recommended minimum cable installation height as a percentage of the distance between the attachment points?

Accepted Answer

Two-thirds of the distance between crotch and branch tips

Answer

ANSI A300 guidelines specify that cables should be installed at approximately two-thirds of the distance between the crotch and the branch tips.

Question 2

Which rod type is most commonly used for tree bracing applications?

Accepted Answer

Solid galvanized steel threaded rod

Answer

Solid galvanized steel threaded rods are the industry standard for bracing because of their strength and corrosion resistance.

Question 3

A 'box' cabling system is most appropriate when:

Accepted Answer

Three or more co-dominant stems require mutual support

Answer

A box (or triangulated) system interconnects three or more co-dominant stems so each one supports the others, distributing load across the group.

Question 4

What is the primary purpose of installing a brace rod through a split or crack in a tree?

Accepted Answer

To prevent the crack from extending further under load

Answer

Brace rods mechanically close and stabilize cracks, preventing the fracture from propagating when the tree is loaded by wind or weight.

Question 5

When inspecting an existing cabling system, which finding indicates the cable should be replaced immediately?

Accepted Answer

Broken wires or corrosion throughout multiple strands

Answer

Broken or heavily corroded strands significantly reduce cable load capacity and present an imminent failure risk requiring immediate replacement.

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