tag:blogger.com,1999:blog-79960549912287398532011-04-21T20:32:16.012-07:00Photon Regulatorhttp://www.blogger.com/profile/10807911980446870402noreply@blogger.comBlogger11100tag:blogger.com,1999:blog-7996054991228739853.post-14413488673672336942009-01-18T12:27:00.000-08:002009-01-18T12:38:47.591-08:00<span style="color: rgb(0, 0, 0);font-family:Verdana;font-size:10;" >Although IEC 60825-2 does not allow Hazard Level 4, it does allow Class 4 radiation on fiber optic cable.<br /><br />In the past, Class 4 on fiber was not common place on Optical Networks (ONs), in fact, it was almost unheard of. But now, ONs are transmitting Class 4 radiation on a regular basis. Of course, most ONs have built in Automatic Power Reduction (APR) systems to reduce the Class 4 to Hazard Levels 3B and less in case of a fiber break or fiber disconnect.<br /><br />However, Class 4 radiation on fiber raises the safety risk significanty. Not only is Class 4 radiation an acute hazard to the eyes and skin, it is also an acute fire hazard to low flammability rated material. IEC TC76 is in the process of preparing a new document intended to give safety guidance to users of ONs transmitting Class 4 radiation. This document is IEC 60825-17.<br /><br />Laser Product Safety LLC will provide more on this issue in the upcoming months as it develops.</span><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7996054991228739853-1441348867367233694?l=lpsbulletin.blogspot.com' alt='' /></div>Photon Regulatorhttp://www.blogger.com/profile/10807911980446870402noreply@blogger.com0