Fax cover sheet from J.C. Broderick & Associates, Oct 2001

NYC 9/11 Public Portal Document

J. ELECTRICAL SYSTEMS LOCKOUT AND TEMPORARY POWER IMPLEMENTATION

• The use of wet methods increases the potential for electrical shock when working around electrical panels, conduit, light fixtures, alarm systems, junction boxes, computers, transformers, etc.

• De-energize as much equipment as possible. Use portable flood-light systems for lighting and regularly check the system and wiring for damage. Twelve volt lights systems are available that work very well.

• Consider using dry removal in areas immediately adjacent to energized electrical equipment if de-energizing is not feasible. Consultation with local NESHAP authorities is necessary prevent citation for failure to use wet methods. to

• Use non-conductive scrapers and vacuum attachments (wood, plastic, rubber).

• Supply workers with heavy insulated rubber boots and /or gloves when working around energized wiring or equipment (lighting, panel boxes, transformers).

•• Ensure all electrical equipment in use is properly grounded before the job starts. This means checking outlets, wiring, extension cords and power pickups. Check for the ground-pin on plugs. These checks should also be made while setting up and regularly during the job.

• Use care not to violate insulated coverings with scrapers, scaffolding wheels, etc. Rolling a heavy cart of scaffold over a flex cord can easily cause internal damage.

• Avoid stringing electrical wiring across floors. Elevate wiring if possible to keep it away from water on the floor and damage from foot traffic and rolling scaffolds. Duct tape is effective for this.

• Do not allow water to accumulate in puddles on work area floors. NESHAP regulations require damp conditions, not standing water!

• Ensure electrical outlets are tightly sealed and taped to avoid water spray.

• Always perform a pre-work walk-through to identify potential sources of electrical hazards to abatement workers, equipment that may be damaged by wet removal or

methods.

• Use stable wooden or fiberglass ladders not metal.

• Determine operating voltages of equipment and lines before working on or near energized parts. De-energize and lock-out when possible.

NYC-WTC 000104875