SHOULD THE LA EARTH PIT SHOULD BE INTER CONNECTED WITH SYSTEM EARTH PIT??
SHOULD THE LA EARTH PIT SHOULD BE INTER CONNECTED WITH SYSTEM EARTH PIT??
(OP)
SHOULD THE LA EARTH PIT SHOULD BE INTER CONNECTED WITH SYSTEM EARTH PIT IN AN HRB ?
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SHOULD THE LA EARTH PIT SHOULD BE INTER CONNECTED WITH SYSTEM EARTH PIT??
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RE: SHOULD THE LA EARTH PIT SHOULD BE INTER CONNECTED WITH SYSTEM EARTH PIT??
What is your LA - a lightning arrester I presume. I refer to it as a surge arrester.
What is an HRB?
This doesn't sound like a North American installation. It might help if you mention what part of the world this is from.
RE: SHOULD THE LA EARTH PIT SHOULD BE INTER CONNECTED WITH SYSTEM EARTH PIT??
NFPA 780 Standard for the Installation of Lightning Protection Systems states:
4.14 Common Grounding.
4.14.1 General. All grounding media in or on a structure shall be interconnected to provide a common
ground potential.
4.14.1.1 This interconnection shall include lightning protection, electric service, telephone, and
antenna system grounds, as well as underground metallic piping systems.
RE: SHOULD THE LA EARTH PIT SHOULD BE INTER CONNECTED WITH SYSTEM EARTH PIT??
RE: SHOULD THE LA EARTH PIT SHOULD BE INTER CONNECTED WITH SYSTEM EARTH PIT??
NEC art.250.36 High-Impedance Grounded Neutral Systems. Low voltage 480 to 1000 V.
(C) System Grounding Connection. The system shall not be connected to ground except through the grounding impedance.
IEEE 142 ch.1.4 Methods of system neutral grounding presents also a lot of connection methods
In my opinion, one has to choose the right one.