RCDD 12th Edition Chapter 9 Exam
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Standard for installation of lighting protection systems = - ✔✔NFPA 780
Primary responsibility of the ITS designer is safeguarding = - ✔✔Personal, property,
and equipment from foreign electrical voltages and currents
The results of such disturbances could be = - ✔✔- Death or injury due to electrical
shock
- Destruction of electronic equip. and property due to electrical fire
- Component malfunction or degradation
- Work or process disruption
ITS designer must consider = - ✔✔- Lighting
- Ground potential rise
- Contact with electrical power circuits
- Electromagnetic interface (EMI)
- Radio frequency interface (RFI)
- Electromagnetic compatibility (EMC)
COPYRIGHT © 2025 BY EMILLY CHARLOTTE, ALL RIGHTS RESERVED 1
, ITS designers are not responsible for = - ✔✔Engineering the portions of the electrical
system related to alternating current(AC) electrical ground faults, air terminal
lighting protection systems, or transient voltage surge protection
Best time to design a grounding protection scheme = - ✔✔Initial planning and
construction
Bonding = - ✔✔Two metallic items
ITS designer is typically responsible for = - ✔✔Telecomm bonding and grounding
and the telecommunications circuit protectors
The ITS designer must recognize that three separate and distinct grounding systems
should be in place at every site = - ✔✔- AC grounding electrode system
- Equipment grounding system
- Telecomm bonding infrastructure
ITS designer has no authority over = - ✔✔The AC grounding electrode system
The purpose of the AC grounding electrode system(earthing system) is to = - ✔✔-
Establish a zero volt reference for AC electrical power systems, whether utility
provided or customer derived
- Provide a path for the dissipation of currents due to lighting or accidental contact
with higher voltage systems
- Provide a path for the dissipation of electrostatic discharge currents
The AC grounding system does not provide adequate electrical protection for = -
✔✔People and equipment in the event of an electrical fault
The AC grounding electrode system consist of two main components = - ✔✔-
Grounding electrode conductor [GEC]
- Grounding electrode
COPYRIGHT © 2025 BY EMILLY CHARLOTTE, ALL RIGHTS RESERVED 2
2025 Questions and Answers 100%
Pass
Standard for installation of lighting protection systems = - ✔✔NFPA 780
Primary responsibility of the ITS designer is safeguarding = - ✔✔Personal, property,
and equipment from foreign electrical voltages and currents
The results of such disturbances could be = - ✔✔- Death or injury due to electrical
shock
- Destruction of electronic equip. and property due to electrical fire
- Component malfunction or degradation
- Work or process disruption
ITS designer must consider = - ✔✔- Lighting
- Ground potential rise
- Contact with electrical power circuits
- Electromagnetic interface (EMI)
- Radio frequency interface (RFI)
- Electromagnetic compatibility (EMC)
COPYRIGHT © 2025 BY EMILLY CHARLOTTE, ALL RIGHTS RESERVED 1
, ITS designers are not responsible for = - ✔✔Engineering the portions of the electrical
system related to alternating current(AC) electrical ground faults, air terminal
lighting protection systems, or transient voltage surge protection
Best time to design a grounding protection scheme = - ✔✔Initial planning and
construction
Bonding = - ✔✔Two metallic items
ITS designer is typically responsible for = - ✔✔Telecomm bonding and grounding
and the telecommunications circuit protectors
The ITS designer must recognize that three separate and distinct grounding systems
should be in place at every site = - ✔✔- AC grounding electrode system
- Equipment grounding system
- Telecomm bonding infrastructure
ITS designer has no authority over = - ✔✔The AC grounding electrode system
The purpose of the AC grounding electrode system(earthing system) is to = - ✔✔-
Establish a zero volt reference for AC electrical power systems, whether utility
provided or customer derived
- Provide a path for the dissipation of currents due to lighting or accidental contact
with higher voltage systems
- Provide a path for the dissipation of electrostatic discharge currents
The AC grounding system does not provide adequate electrical protection for = -
✔✔People and equipment in the event of an electrical fault
The AC grounding electrode system consist of two main components = - ✔✔-
Grounding electrode conductor [GEC]
- Grounding electrode
COPYRIGHT © 2025 BY EMILLY CHARLOTTE, ALL RIGHTS RESERVED 2
