Myalarm V-LCD1 Manuel d'instructions Page 300

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Vue de la page 299
Figure6-ShieldandGroundingLayout
TYPICALGROUNDINGANDBONDINGLAYOUT.
ALLGROUNDSANDBONDSMUSTCONFORMTONATIONALELECTRICALCODESTANDARDS.
14GAUGE
MINIMUM
System2
Cabinet
System2
Cabinet
BUILDINGGROUND
COLDWATERPIPE
BUILDINGPLUMBING
GROUND
ROD
ELECTRICAL
EQUIPMENT
8CONDUCTOR22AWG
SHIELDEDCABLE
8CONDUCTOR22AWG
SHIELDEDCABLE
SHIELDSHIELD
A B C D
GROUNDINGLUG.THISISAUNIFIEDGROUNDPOINTFORTHEACCESS
EQUIPMENT.
DONOTDAISYCHAINTHEGROUNDWIRESFROMONESYSTEM2TOTHE
NEXT.
THESHIELDFROMEACHINPUTDEVICE(KEYPAD,CARDREADER,RTE,
ETC.)MUSTCONNECTTOTERMINAL#1-EARTHGROUND.
ASEPARATEGROUNDRODTHATISBONDEDTOTHEELECTRICAL
GROUNDISNOTACCEPTABLE.
ANYGROUNDTHATYOUUSEMUSTBEBONDEDTOTHEELECTRICAL
GROUND.
NOT
DONOTOPERATETHISSYSTEMWITHOUTAGOODEARTHGROUND.
USEAGROUNDINGLUGTOESTABLISHAUNIFIEDGROUNDPOINTFOR
EACHGROUPOFSYSTEM2CABINETS.
UNITSLOCATEDONDIFFERENTFLOORSORATDIFFERENTLOCATIONS
NEEDAUNIFIEDGROUNDPOINTATEACHLOCATION.
Vue de la page 299
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