Hand lamp being used as an extension cord at welding table in a heavy equipment repair shed open to the weather. (Photo: Jan Thomas)

I don’t like this type of portable lamp for several safety reasons.  First, I’ve done one too many accident investigations that involved an incandescent bulb “trouble light.”  The classic accident involves the mechanic that takes this lamp under the hood or under the equipment/vehicle and begins to work on the fuel system.  Dripping fuel + hot electrical bulb = explosion & pain.

Aside from applicable OSHA standards we have support from Underwriters Laboratory which specifically states that “these products are not intended for outdoor use unless marked “Suitable for Wet Locations,” or for use in hazardous (classified) locations…” (UL 298, the Standard for Safety of Portable Electric Hand Lamps).The other reason for worrying about employee use is that the handle on many lamps provides a plug – supposedly for attachment of a small appliance like a shop radio or small bench tool – but which is misused in industrial and construction sites as an “extender” for extension cords (see above).  The hand lamp is now susceptible to being dragged around on the floor or hitting metal. 

And, as a special side note… I usually find misuse of this type of equipment paired with a lack of GFCI protection, thus doubling the risk.

The solution – purchase heavy duty portable lighting with proper bulb protection and NO outlet on the handle.  Use GFCI!