Power Transmission Safety Standards

The development of the Safety Standard for Mechanical Power Transmission Apparatus has been plagued by changing definitions and a penchant for expanding the scope of power transmission applications. The current code gives examples of devices which do not transmit power and, in some cases, represent points of operation. Power transmission hazards are increasingly being defined in terms of motion. The notion that mechanical hazards may be characterized as either point of operation or power transmission is a fundamental error that persistently plagues the “rule making” process.