ANSI-B15 1:2000-R2006 pdf download.Safety Standards for Mechanical Power Transmission Apparatus.
1.1 General
The requirements of this Standard apply to any source of hazard to people from the operation of mechanical power transmission apparatus on machines, equipment, or systems that are stationary in their use, other than the point of operation. This Standard applies to the sources of mechanical power, and also to pulleys, gears, and other mechanical components used to transmit power to the point of operation. Where other standards take precedence by specific reference to power transmission apparatus, this B15.1 Standard shall not apply.
1.2 Purpose
The purpose of this Standard is to provide requirements for use in developing effective safeguarding methods to
protect people from injury due to inadvertent contact with mechanical power transmission apparatus. When specific safeguarding methods are listed, they are based on sound safety practices; however, alternatives that provide
equivalent protection are acceptable. The use of personal protective equipment is recommended, where applicable, but its use does not negate provisions of this Standard.
1.3 Application — General Requirements
People having access to areas where motion hazards exist shall be protected, by safeguarding means, from contact with moving parts (mechanisms). Such safeguarding means shall prevent people from walking into, reaching over or under, or other inadvertent contacts.
Where breakage of a machine component can result in injury, provision shall be made for appropriate containment of said components.
When mechanical power transmission apparatus is stopped for servicing purposes, the starting devices, prime movers, or powered accessories shall be locked or tagged out, in accordance with a generalized procedure, to protect all persons or groups exposed to the mechanical power transmission apparatus from an unexpected start.
1.3.1 Exception — Low Energy
Certain power transmission apparatus may lack sufficient energy to create a hazard, and therefore safeguarding may not be required.
1.3.2 Exceptions — Service/Maintenance
When a safeguard must be bypassed during startup, setup, repair, adjustment, or maintenance, a program to control the unexpected energization of mechanical power transmission apparatus shall be implemented. This program shall be in writing and shall include proper procedures and adequate training of personnel. During testing and positioning of mechanical power transmission apparatus, special procedures shall be implemented and only properly trained and authorized personnel shall be allowed access to a hazard area.
1.4 Effective Date
The effective date of this Standard for the applicable equipment cited in it shall be 1 year after its date of issuance.
2 Definitions
Belt: a continuous band or series of links of belting material for transferring motion or power from one wheel, pulley, or shaft to another.
Chain: a series of links joined together to form a medium for transmitting motion or power from one sprocket or wheel to another.
Gear: a toothed machine element used to transmit motion without the use of a belt or chain.ANSI-B15 1 pdf download.