Part 3 Supplemental Support Systems addresses:
- Tools and equipment
- Cabling objectives
- Types of cabling systems
- Bracing objectives
- Dead-end bracing
- Guying established trees
- Guying newly transplanted trees
- Tree-to-ground guying
- Tree-to-tree guying
- Propping trees and branches
- Hardware sizing and selection tables
A300 Part 3 Supplemental Support Systems standards provide four basic cabling methods:
- Direct: Direct cabling consists of a single cable between two tree parts, e.g., two limbs, two stems, or a trunk and a limb.
- Triangular: Triangular cabling consists of connecting tree parts in combination of threes. This method should be preferred, when maximum support is required.
- Box: Box cabling consists of connecting four or more tree parts in a closed series. This system should be used only when minimal direct support is needed.
- Hub and Spoke: Hub and Spoke cabling consists of a center attachment (hub) with spans (spokes) of cable radiating to three or more leaders. Hub and Spoke cabling should only be used when other installation techniques cannot be installed.
- Supplemental Support Systems need periodic inspections by an arborist. Scheduling inspections shall be the responsibility of the tree owner.
- Supplemental support systems are used to provide additional support or limit movement of a tree or tree part. They do not provide primary support to a tree.
A300 Part 3 Supplemental Support Systems standards provide installation standards:If cables in your trees are not two thirds of the way up, it may be time to get your system updated.
Part 3 Supplemental Support Systems Resources: