90 days.
Extension Cord Time Limits OSHA standards allow the use of an extension cord for a maximum of 90 days. If you need the cord longer than that, you’re required to create a more permanent solution and hardwire whatever you’re plugging in.
What does OSHA say about extension cords?
All extension cords used on projects must be three-pronged and carry one of the designations required by the Occupational Safety and Health Administration (OSHA) and the National Electric Code (NEC). Each extension cord, power tool and receptacle, as defined earlier, shall be tested for grounding continuity.
Is there a limit to extension cord length?
In general, extension cords should not exceed 100 feet in length. However, by plugging one extension cord into another, the maximum cord length can be easily exceeded. If the job requires more than a 100-foot distance, a temporary power distribution box is required.
Are extension cords OSHA approved?
Only extension cords (cord sets) that are approved, as an assembly, by a Nationally Recognized Testing Laboratory (NRTL) such as UL are permitted to be used at places of employment. This limitation is based on the requirement that all equipment be approved as set forth in 29 CFR 1910.303(a) and 29 CFR 1926.403(a).
How often should an extension cord be inspected?
every three months
Before use or return to service, testing should be conducted on each piece of equipment every three months. A continuity test is needed to make sure the extension cord or power tool has a grounded wire.
Does the length of an extension cord affect the power?
Extension cord lengths determine the cord’s power capacity. Every extra foot of cord increases the electrical resistance. This decreases the power the cord can deliver to connected devices. For best results, use the shortest extension cord possible.
How far can you run 12 gauge extension cord?
12-Gauge Cords: If your tool load is between 10 and 15 amps and the length of the cord is 50 to 100 feet, you need a 12-gauge cord to safely power any tool. This is a great extension cord for many purposes.
What is the most common OSHA electrical violation?
Lockout/Tagout
Lockout/Tagout had the most violations of any electrical category. At number 5 on the Most Frequently Cited Standards list, LOTO violations are proof positive that many facilities still do not prioritize employee safety training as much as they should.
When should you remove an extension cord from service?
Any defective cord or cord-and-plug-connected equipment must be removed from service and no person may use it until it is repaired and tested to ensure it is safe for use. Extension cords must be of the three-wire type (except as specifically allowed by the NEC).
When should I replace my extension cord?
Regularly check cords for any sign of exterior damage including cracks, nicks, cuts, or frays. If the protective coating is damaged in any way, it’s time to replace it. If you notice damage to an extension cord, don’t try to repair it throw it out.
How long do outdoor extension cords last?
Do NOT leave even your outdoor extension cord outside more than a day or two. Left outside over extended periods, cord materials can breakdown, potentially resulting in sparking, fire, and shock. Always follow outdoor electrical precautions.
Does OSHA allow daisy chaining extension cords?
If a power strip or cord-connected RPT is connected or daisy chained to another power strip or cord-connected RPT it violates the UL listing and is not in compliance with OSHA standard 29 CFR 1910.303(b) (2).
What should a worker check for before using an extension cord?
Portable cord and plug connected equipment and flexible cord sets (extension cords) shall be visually inspected before use on any shift for external defects (such as loose parts, deformed and missing pins, or damage to outer jacket or insulation) and for evidence of possible internal damage (such as pinched or crushed
What happens if extension cord is too long?
An improperly sized extension cord can cause a tool or appliance motor to burn out if allowed to run for too long. It can also cause a dangerous situation if it overheats.
What happens if you use too long of an extension cord?
Overheating can occur at the plug, at the socket, or even over the entire length of the cord, causing the cord to melt. Using damaged extension cords can also lead to fires. In addition to increased risk of building fires, overheated and/or damaged cords can burn or injure employees.
Are long extension cords safe?
Don’t let your extension cords become potential fire hazards. Extension cords are a common and convenient way to bring power to electrical devices. But used without proper caution, they can become fire hazards and pose risks to your personal safety.
How far can you run 16 gauge extension cord?
16-Gauge Cords: Any 16-gauge cord between 0 and 100 feet long will adequately handle loads up to 10 amps. 14-Gauge Cords: Any 14-gauge cord between 0 and 50 feet long will adequately handle loads between 10 and 15 amps.
Which is better 10 gauge or 12 gauge extension cord?
Round down = 10 Gauge. Most devices will do fine with 12 gauge extension cords. Power hungry devices such as lawnmowers, heavy machines, require a lower gauge such as 10AWG. Keep in mind, the lower the gauge means the thicker the cord.
Can a 12 gauge extension cord handle 20 amps?
12-Gauge. A 12-gauge aluminum extension cord has a rating of 20 amps at 167°F and 25 at 194°F. On the other hand, a copper wire of the same AWG has a rating of 25 at 140°F, 25 at 167°F, and 30 at 194°F.
What happens when you cut a power cord?
While cutting a live wire will likely trip the circuit breaker, there are other significant hazards. The sudden short caused by cutting live wires can cause sparks which could result in a fire or it can damage other electrical components which themselves could cause fires at unpredictable times.
How can I make my electric cord shorter?
Cut off the excess cord, including the existing plug, with the utility knife and discard it. Split apart the wires of the remaining cord by carefully slicing down the middle, between the two wires, for about 1 1/2 inches. Strip ? inch of insulation from each wire with the wire stripper to expose the conductors.
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