C.P. SENTINEL AUTOMATIC TYPE CATHODIC PROTECTION RECTIFIER MANUAL
INTEGRATED RECTIFIER TECHNOLOGIES, INC.
Doc #: APC0010
Rev. 3.0, November, 2004
Page 5 of 22
SAFETY PRACTICES
This symbol denotes a possible shock or electrical hazard.
DO NOT INSTALL, REMOVE, or REWIRE
THIS EQUIPMENT WITH POWER APPLIED!!
As Cathodic Protection rectifiers are connected to the AC utility power, electrical shock hazards
are present within the rectifier units. It is recommended that only qualified electronic or electrical
personnel operate and maintain these units and that those personnel familiarize themselves with
the areas of possible hazard within the unit. Following these practices can enhance the safety of
personnel.
1.) Prior to site maintenance or inspection, familiarize yourself with the rectifier and
conditions at the site.
2.) Prior to doing any maintenance or troubleshooting on a rectifier unit, familiarize
yourself with any possible hazard points within the unit by reviewing the electrical
schematic and the physical layout of the rectifier.
3.) Whenever possible, set the AC disconnect from the power utility to the “OFF” position
prior to starting any work on the rectifier unit. Even with the rectifier AC input circuit
breaker in the “OFF” position, hazardous voltages are still present at any terminals
connected to the rectifier AC input terminals. Always tag and lock out the disconnect
to ensure others do not energize it while you are completing the rectifier work.
4.) Prior to opening the rectifier enclosure door, lightly touch the back of your hand to the
enclosure latch. If you feel an electrical tingle, set the fused AC disconnect to the
“OFF” position and contact an electrician for assistance.
5.) When taking readings across the rectifier terminals, it is recommended to use only
one hand, if possible.
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