ANSI B11 3:2001-R2007 pdf download.Safety Requirements for Power Press Brakes.
1.1 General
The requirements of this standard apply to those machine tools classified as power press brakes (hereinafter referred to simply as “press brakes”), which are designed and constructed for the specific purpose of bending material.
The requirements of this standard also apply to powered folding machines.
NOTE — Where used in this standard, the terms machine or system refer to the press brake or press brake production system.
1.2 Exclusions
Excluded from the requirements of this standard are:
mechanical power presses; hydraulic power presses; hand brakes; tangent benders; apron brakes; and other similar types of metal-bending machines.
2 Normative References
The following normative documents contain provisions that, through reference in this text, constitute provisions of this American National Standard. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements subject to this American National Standard should apply the most recent editions of the normative documents listed below.
29 CFR 1910.147: Control of hazardous energy (lockout4agout) (For more information, www.osha.gov)
29 CFR 1910.333: Selection and Use of Electrical Work Practices (For more information, www.osha.gov)
3 Definitions
For the purposes of this standard, the following definitions
apply.
3.1 actuating control: An operator control used to
initiate machine motion or other machine function.
3.2 adjustable barrier guard: A guard with provisions for adjustment to accommodate various jobs or tooling setups.
3.3 antlrepeat: The function of the control system or device that limits the machine to a single cycle.
3.4 awareness barrier: An awareness device that warns individuals by means of physical contact.
3.5 barrier guard: See guard.
3.6 bed: The stationary member of the machine that supports the tooling and other associated equipment.
3.7 blanking: Bypassing a portion of the sensing field
of a presence-sensing safeguarding device.
3.8 brake: A mechanism for stopping, slowing or preventing motion.ANSI B11-3 pdf download.