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Calix ONT Grounding

Implementation

January, 2007

# 220-00178, Rev 10

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Содержание 500 Series

Страница 1: ...Calix ONT Grounding Implementation January 2007 220 00178 Rev 10...

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Страница 3: ...Not for use or disclosure except by written agreement with Calix 2001 2007 Calix All Rights Reserved Contents Introduction 5 Grounding Purpose 5 NEC and Grounding 6 Testing the Earth Electrode 7 Full...

Страница 4: ...4 Proprietary Information Not for use or disclosure except by written agreement with Calix 2001 2007 Calix All Rights Reserved...

Страница 5: ...case would cause the over current device to trip thereby removing the power to the device y The protection and survivability of the electronics equipment High voltage spikes that occur during electric...

Страница 6: ...The earth electrode can be a metallic cold water pipe or a copper clad steel rod that has been driven into the ground to a depth of at least 8 feet Metallic cold water pipes that run under ground for...

Страница 7: ...depends on the chemical makeup and ambient moisture content of the soil The testing of an electrode measures the effectiveness of the earth electrode to provide electrical contact with the earth The...

Страница 8: ...re measurements are taken beyond this point the amount of resistance to earth will start to increase again The test setup as illustrated below uses an Earth Resistance Megger to determine the resistan...

Страница 9: ...ectrode being tested and the outer current electrode may be limited by the physical characteristic of the surrounding area or the length of the test conductor being used It is not uncommon for the out...

Страница 10: ...should be kept for each ONT installation In some locations extremely high earth ground resistance is present In these locations chemicals that lower earth resistance can be added to the earth that sur...

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