TO: NECA 400-200X ANSI Canvass Participants FROM: Billie Zidek ...

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NECA 400-200X – Reballot Draft
Check all accessible exterior switchboard hardware for tightness.
Visually inspect enclosures for physical damage. Repair physical damage, if
practical and as approved by the manufacturer. Consult owner and switchboard
manufacturer for recommendations for suitable protective barriers to prevent
future damage.
Inspect areas and spaces around switchboards for evidence of water or
moisture. Eliminate sources of water or moisture, or provide suitable protection
for switchboards from sources of water.
6.2 Safety Procedures
Before cleaning, inspecting, testing, or maintaining, de-energize and electrically
isolate equipment in accordance with established procedures. Consider all
circuits live until they are confirmed to be de-energized by testing and are locked
out of operation. Do not work on energized equipment. Guard energized
conductors and equipment in close proximity to work. Failure to observe these
precautions may result in severe personal injury or death.
Personnel working on or near energized switchboards should follow the safe
work practices described in NFPA 70E, including the use of personal protective
equipment (PPE) appropriate for the task being performed.
Apply lockout/tagout procedures in accordance with documented and established
policies and practices. Render electrical circuit conductors and circuit parts
electrically safe by removing all sources of energy by opening all upstream
source disconnecting means, locking and tagging out all source disconnecting
means, verifying the absence of voltage using an approved voltage testing
device, and guarding any exposed energized components.
Remove the front cover of the switchboard and attach grounding leads to the line
terminals of the main circuit breaker or main lugs, to the neutral terminal bus bar,
if so equipped, and to the grounding terminal.
6.3 Cleaning and Inspections
Consult manufacturer recommendations for cleaning and inspecting
switchboards and components. De-energize switchboards in accordance with
Section 6.2 prior to performing any cleaning or inspections.
Visually inspect switchboards for evidence of discoloration, abnormal dust
accumulation, metal shards, or any other indication of overheating, wear, or other
abnormal conditions prior to cleaning.
Visually inspect the switchboard for signs of overheating. Discoloration and
flaking of insulation or metal parts are indications of possible overheating.
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