- Part Number:1917
- Part Number Title:Marine Terminals
- Subpart:1917 Subpart F
- Subpart Title:Terminal Facilities
- Standard Number:
- Title:Fixed ladders.
- GPO Source:
Scope and applicability. This section applies to all fixed ladders except:
Cage (basket guard) means a barrier enclosing or nearly enclosing a ladder's climbing space and fastened to one or both of the ladder's side rails or to another structure.
Fixed ladder means a ladder, including individual rung ladders, permanently attached to a structure, building or piece of equipment.
Ladder safety device means a support system limiting an employee's drop or fall from the ladder, and which may incorporate friction brakes, lifelines and lanyards, or sliding attachments.
Well means a permanent complete enclosure around a fixed ladder, which is attached to the walls of the well.
Ladders installed before October 3, 1983, shall be capable of withstanding without damage a minimum concentrated load, applied uniformly over a 3½ inch (8.9 cm) width at the rung center, of 200 pounds (890 N).
Ladders installed before October 3, 1983, shall have rungs evenly spaced from nine to 16½ inches (22.9 to 41.9 cm) apart, center to center.
The minimum distance between the rung center line and the nearest permanent object behind the rung shall be 4 inches (10.16 cm), except that in ladders installed after October 3, 1983, the minimum distance shall be 7 inches (17.78 cm) unless physical limitations make a lesser distance, not less than 4½ inches (11.43 cm), necessary.
Ladders whose pitch exceeds 90° to the horizontal (slanting backward on the climbing side) shall not be used.
Protection against falls.
Protected by guardrails complying with § 1917.112(c) of three sides.
Have a connection length between carrier centerlines and safety belts of 10±2 inches (25.4±5.08 cm); and
Individual rung ladders. Ladders consisting of individual rungs that are attached to walls, conical manhole sections or river cells shall:
Form a continuous ladder, uniformly spaced vertically from 12 inches to 16 inches (30.5 to 40.6 cm) apart, with a minimum width of 10 inches (25.4 cm) and projecting at least 4½ inches (11.43 cm) from the wall;
[48 FR 30909, July 5, 1983; 62 FR 40141, July 25, 1997; 65 FR 40941, June 30, 2000]