GILBARCO VEEDER-ROOT Encore 300 Series, Руководство по установке

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Installation
Page 44 MDE-3985L Encore® Installation Manual · May 2006
5
Securely fasten conduit to slotted cross brace provided in hydraulics cabinet.
Note: See illustration in “Connecting Pump/Dispenser Inlet Pipes” on page 28 .
6
Proceed to next section, “ Testing New Field Wiring ” before potting the conduit.
Testing New Field Wiring
Test insulation of new wiring from station and to the electronics cabinet before connecting the
wires. Refer to Warning above. This checks for damage that can occur while pulling wires
through the conduit.
1
Disconnect wires at both ends. If you do not disconnect wires at both ends, you can damage
the pump/dispenser electronics.
2
Test the conduit wiring ends by using an insulation/Megger tester.
3
Connect one tester lead to wire under test.
4
Connect other tester lead to ground.
5
Measure resistance. Follow test equipment manufacturer instructions. Insulation resistance
more than 50 megohms is satisfactory. Check local authority requirements.
6
Repeat above steps for all new wires.
7
Repeat test between all new wires.
8
When all wiring tests successfully, pot conduit according to next section.
Potting Conduit Stubs
All conduit entering the electronics cabinet on dispensers or pumps must be potted. Any
contractor supplied conduit entering the electronics cabinet must be potted. Pot conduit
according to the following:
WARNING
Sparks can ignite fuel/vapors.
Fire/explosion can result in severe injury or death.
Use caution when testing wires. Do not test when exposed fuel and vapors are present.
Only use a Megger
®
Tester on new field wiring.
For existing wiring use a digital multi meter to test for continuity/resistance.