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The following is an excerpt from a fax rec … The following is an excerpt from a fax received from Unified Controls International (UCI):</br>...there was a significant manufacturing process change to the General Electric SBM series switches in 2009. The high resistance across switch contacts in the GE SBM switches could lead to a failure of the switch to change state when required. Concerns have been raised regarding tin plated movable contacts used for make or break service and in use without protective lubrication. UCI is not capable to complete an evaluation of the affect that this change may have on in storage SBM switches or already installed SBM switches that were provided to the customers on the purchase orders listed in section (below). UCI does not know the storage conditions, in service environmental conditions or in service cycling rates of the switches or how the each of these items may affect the change in contact resistance. Each affected customer needs to evaluate their in storage and in service switches and determine if the change in contact material could possibly create a safety hazard and effect the ability of the switches to perform in their safety related application.</br>The applicable purchase orders are:</br>Duke Energy, Purchase Orders: 131116,133980, 147875,129193,130989 (Non-Safety Related), 133920, 148974 (Non-Safety Related), 152090 (Non Safety Related), 133972, 169525</br>Antung Trading Company, Purchase Order: PP120210</br>CFE, Purchase Order: 700327408</br>Fluor, Purchase Order: A3PB-6-0016-00Q108
Fluor, Purchase Order: A3PB-6-0016-00Q1 +
04:00:00, 21 March 2014 +
08:46:00, 21 March 2014 +
04:00:00, 21 March 2014 +
The following is an excerpt from a fax rec … The following is an excerpt from a fax received from Unified Controls International (UCI):</br>...there was a significant manufacturing process change to the General Electric SBM series switches in 2009. The high resistance across switch contacts in the GE SBM switches could lead to a failure of the switch to change state when required. Concerns have been raised regarding tin plated movable contacts used for make or break service and in use without protective lubrication. UCI is not capable to complete an evaluation of the affect that this change may have on in storage SBM switches or already installed SBM switches that were provided to the customers on the purchase orders listed in section (below). UCI does not know the storage conditions, in service environmental conditions or in service cycling rates of the switches or how the each of these items may affect the change in contact resistance. Each affected customer needs to evaluate their in storage and in service switches and determine if the change in contact material could possibly create a safety hazard and effect the ability of the switches to perform in their safety related application.</br>The applicable purchase orders are:</br>Duke Energy, Purchase Orders: 131116,133980, 147875,129193,130989 (Non-Safety Related), 133920, 148974 (Non-Safety Related), 152090 (Non Safety Related), 133972, 169525</br>Antung Trading Company, Purchase Order: PP120210</br>CFE, Purchase Order: 700327408</br>Fluor, Purchase Order: A3PB-6-0016-00Q108
Fluor, Purchase Order: A3PB-6-0016-00Q1 +
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00:00:00, 21 March 2014 +
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08:46:00, 21 March 2014 +
0.199 d (4.77 hours, 0.0284 weeks, 0.00653 months) +
04:00:00, 21 March 2014 +
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