By National Fire Protection Association
This newly revised criteria offers uniform fireplace protection symbols for use via most people and the fireplace carrier, in addition to for architectural and engineering drawings, assurance diagrams, fireplace battling operations, and pre-incident making plans sketches.
Read or Download NFPA 170, Standard for Fire Safety Symbols PDF
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Extra resources for NFPA 170, Standard for Fire Safety Symbols
Also, where machine stopping performance is an important aspect of the upgraded safeguarding there may be difficulties fitting suitable braking arrangements. 8 Summary By following an established strategy and employing proven design and manufacturing techniques, the machinery produced should prove to be safe to operate over its foreseen lifespan. 1 Identification An essential element in the safe use of machinery is the identification of hazards so that action can be taken to remove them before harm or injury are caused.
The counter-weights of a lift should run within the lift shaft. (e) Band saw blades An adjustable guard should be fitted over the blade allowing exposure of only that length of blade necessary for the thickness of the material to be cut. (f) Wire stitching and riveting machines These machines may require the operator to hold the work close to the clinching head. Protection is provided by special trip guards that sense the presence of fingers. (g) Scissor lifts In operation, the major hazard is the shear trap formed between the edge of the table and adjoining work platforms as the table descends.
In the design of guards and safeguards for machinery consideration needs to be given to some or all of the following factors. 2 Basic factors In selecting the type of safeguard to suit the machinery, consideration should be given to a number of basic factors which can influence the manufacturing process and, ultimately, the level of safety performance required of the equipment. 1 Safety background The safety background is the operating environment, safety culture and corporate attitude to safeguarding machines and their operators.