Power Strips and Extension Cords

     Power Strips and Extension Cords

    • Do not daisy-chain power strips or extension cords.
    • Do not plug extension cords or power strips into one another as this increases the resistance of the electrical circuit, which can cause more heat to be generated and possibly cause a fire. 
    • Each power strip or extension cord must be plugged directly into a permanently installed electrical receptacle (i.e., an electrical outlet).
    • Power strips, unless specified, are designed for low-powered devices, not for high-power appliances. High-power devices often have high startup/surge loads that can overload a circuit. Examples of devices that should not be plugged into power strips include refrigerators, coffee pots, space heaters, microwave ovens, toasters, as well as lab equipment used for warming, heating, cooling, or other high-power applications.
    • Extension cords are for temporary use only (as defined by International Fire Code = not to exceed 90 days).

    Other Considerations/Guidelines

    • If you feel that you need more outlets in an area then please first reassess where and why you have equipment situated in your space because you may be able to rearrange items to eliminate the overloaded outlets.  If an assessment does not solve your problem then contact your department chair, and we will work with Facilities to have outlets moved/installed. 
    • Most RNS outlets are on 20 Amp circuits; do not overload an outlet or a power strip (if unsure then talk with your stockroom managers about this).
    • Periodically inspect the cord/strip to ensure that it is in good condition, with no cuts, frays, or other signs of damage.  If the cord or plug has been “repaired” with electrical/other tape then it must be replaced.
    • Purchase and use only those cords/strips that are:
      • Tested and approved by a nationally recognized testing laboratory, such as Underwriters Laboratories (UL).Rated for the specific load it’s powering and have a gauge number to match the amperage and voltage requirements of the device(s).
      • For power strips: equipped with overcurrent protection (e.g., surge protector, GFCI, fuses, circuit breaker.
    • Use a three-wire, grounded power strip or extension cord.  If a two-prong extension cord is used then it must have a polarized plug (one prong is larger than the other).
    • Do not use outlet adapters (3-prong to 2-prong), as this bypasses required safety features.  Removing the grounding prong of plugs is not allowed.
    • Eliminate tripping/entanglement hazards.
      • Consider the placement of the cord so that they do not become a tripping/entanglement hazard.  If an equipment’s power cord must go across a walkway then cover it with a protective cover.Cords/strips may be “attached” to the undersides of tables, walls, etc., but cords shall not be permanently affixed to the structure, extended through walls, ceiling or floors, or under doors or floor coverings (carpets, etc.). 
      • Use the shortest cord possible for the task; longer cords are more prone to overheating and fire.