Zte ZXA10 C300 - Appendix B Grounding Network Requirements; Table B-1 Length and Cross-Sectional Area Requirements

AppendixB
GroundingNetwork
Requirements
TableofContents
ŸGroundingCableRequirements..............................................................................B-1
ŸCabinetandCentralOfce......................................................................................B-2
ŸOutgoing/IncomingCablesfrom/toCentralOfce...................................................
B-2
B.1GroundingCableRequirements
Groundingcablerequirementsareasfollows:
lMaterial
lCablelengthandcross-sectionalarea
Material
Useaninsulatedcoppercableinsteadoftheexposedwireasthegroundingcable.Use
thecopperbarorgalvanizedatsteelasthebusbar.
CableLengthandCross-sectionalArea
TableB-1liststhelengthandcross-sectionalarearequirementsforgroundingcables.
TableB-1LengthandCross-sectionalAreaRequirements
CableRequirements
Copperbar(≥40×4mm
2
),galvanizedat
steel(≥50×5mm
2
),ormulti-copperwire
(cross-sectionalarea≥150mm
2
);solderthejoint
ofthesteelandcopper.
Groundingbar
Usethegroundinginleadtoconnectthe
groundingstaketothenearbygroundingnetwork.
Copperbar(≥40×4mm
2
),galvanizedat
steel(≥50×5mm
2
),ormulti-copperwire
(cross-sectionalarea≥120mm
2
);allmaterials
mustbeinsulated.
Groundinginlead
Thegroundinginleadofthetelecommunications
ofceshouldbelessthan30meters.
B-1
SJ-20110909101511-005|2011-12-31(R1.1)ZTEProprietaryandCondential