Safety 1st Advancer Manual do Operador descarregar pdf (Página 61)

Environmental Remediation Drilling

Safety Guidelines

Page 61 of 132

4.6 – Electrical Safety

4.6.1 - Supplying Power to the Job Site

Drilling projects sometimes require around the clock operations and, therefore, require temporary electrical

lighting. In general, all wiring and fixtures used to provide electricity for drilling operations should be

installed by qualified personnel in accordance with the National Electrical Code (NFPA70 1999) with

consideration of the American Petroleum Institute's recommended practices for electrical installations for

production facilities (API RP 500B). Lights should be installed and positioned so that the work area and

operating positions are well lighted without shadows or blind spots. The following are specific

recommendations for land based drilling operations:

• Before working on an electrical power or lighting system, lockout the main panel box with your own

lock and keep the key on your person at all times.

• Install all wiring using high quality connections, fixtures, and wire. Be sure that the wiring is insulated

and protected with consideration for the drilling environment.

• Do not use makeshift wiring and equipment.

• Place all lights positioned directly above working areas in cages or similar enclosures to prevent loose or

detached lamps or vapor tight enclosures from falling on workers.

• Install lights so as to eliminate glare or blind spots on tools, ladders, walkways, platforms, and the

complete working area.

• Locate and guard electrical cables to prevent damage by drilling operations or by the movement of

personnel, tools, or supplies.

• Use only three prong, U blade, grounded type plug receptacles and have adequate current carrying

capacity for the electrical tools that may be used.

• Use only electrical tools that have three prong, U blade, ground wire plugs, and cords.

• Do not use electrical tools with lock on devices.

• Provide adequate grounding for all electrical welders, generators, control panels, and similar devices.

• Provide secure protective enclosures on control panels, fuse boxes, transformers, and similar equipment.

• Avoid attaching electrical lighting cables to the mast or other components of the drill rig. If this must be

done, use only approved fasteners. Do not string wire through the mast.

• Do not use poles used to hold wiring and lights for any other purpose.

• Turn power off before changing fuses or light bulbs.

• Require all workers in a drilling area illuminated with electrical lighting to wear safety head gear that

protects the worker's head, not only against falling or flying objects, but also against limited electrical

shock and burns according to ANSI Z89.1 and Z89.2.

• Allow only trained, designated personnel to operate electrical equipment.

• Do not permit unqualified field personnel to work on or near electric lines or devices.

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Safety 1st Advancer Manual do Operador Página 61