Chapter 15 Table of Contents. View the entire chapter in a PDF format. Please use the pdf for printing.

Definitions (Section 4)

Cage/well. A cage is a guard that may be referred to as a cage or basket guard, which is an enclosure that is fastened to the side rails of the fixed ladder or to the structure to encircle the climbing space of the ladder for the safety of the person who must climb the ladder. A well is a permanent complete enclosure around a fixed ladder, which is attached to the walls of the well. Proper clearances for a well will give the person who must climb the ladder the same protection as a cage.

Design authority. A person designated by SLAC who by reason of training, experience or instruction has demonstrated the ability to adequately design ladders, and when required, is properly licensed in accordance with federal, state, or local laws and regulations.

Ladder, fixed-in-place. A ladder permanently attached to a structure, building, or equipment.

Ladder, portable

• Ladder, extension. A non-self-supporting portable ladder adjustable in length. It consists of two or more sections traveling in guides or brackets so arranged as to permit length adjustment. Its size is designated by the sum of the lengths of the sections measured along the side rails.
• Ladder, step. A self-supporting portable ladder, non-adjustable in length, having flat steps and a hinged back. Its size is designated by the overall length of the ladder measured along the front edge of the side rails.
• Ladder, straight (fixed-length). A non-self-supporting portable ladder that is not adjustable in length.

Owner. A person at SLAC, either a building or area manager or a person designated by such, responsible for the physical condition of a fixed-in-place ladder.

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