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manufactured guardrail systems meet the regulatory requirements and are installed according to the manufacturer’s instructions. Specifications for wire rope guardrail systems can be found in section 26.3(8) of the construction regulations. Loads Guardrails must be capable of resisting the following loads.
Requirements for a guardrail system include: [O. Reg. 213/91. s. 26.3(4)] It must have a top and intermediate rail, and a toe board. The intermediate rail must be made of a material that can withstand a load of 450 newtons applied laterally (from the side) or vertically downward.
Guardrails must be installed no more than 30 cm (1 ft) from an open edge. They must be high enough and strong enough to resist the force of workers bumping into or backing up against them. They must also be able to withstand the loads specified in the Construction Projects regulation (O. Reg. 213/91, s. 26.3(5)).
The general requirements specified in Sections 1003 through 1015 shall apply to all three elements of the means of egress system, in addition to those specific requirements for the exit access, the exit and the exit discharge detailed elsewhere in this chapter.
Guard fence placed in the vicinity of curbs should be blocked out so that the face of curb is located directly below or behind the face of rail. Rail placed over curbs should be installed so that the post bolt is located 25-in above the gutter pan or roadway surface.
Resources. An unprotected opening on a work surface is a serious hazard that puts employees at risk of injuries from falls. Guardrails are the preferred method for protecting workers near openings but may not always be practical. In such cases, securely fastened protective covers - planks, plywood, or steel plates - may be the best alternative.
The following items should generally be considered in this analysis: Is the section of guardrail still required under current design standards? Can the guardrail installation be avoided with the elimination of the hazard or the flattening of the slope?
