How to keep a live show safe

Today there are festivals in more parts of the world than ever before–and ticket prices are higher than ever before. Why are music festivals so expensive? The reason is that big stars maximise their take from tours.

Besides getting the start to the festival, there is lots of technology on those festivals and many safety issues to consider. Here are some videos on those issues.


Stage Safety – How to keep a live show safe – Safety hazards at Concerts & Clubs

Rigging Your Stage & Stage Safety

Arena Rigging

Stage Rigging


REVIEW 10 Pack Stage Light Safety Cables 66 Pound 11.8″ Stainless Steel DJ Lighting Cables

How to rig a light.

Safety Cable For Lighting, DJ Tip Log

Cord Management tips for DJs using truss!



  1. Tomi Engdahl says:

    What Does WLL Mean and Why is it Important?

    Safe Working Load, SWL, (or Normal Working Load, NWL) is an outdated term that was used to indicate the amount of weight that a lifting device could safely carry without fear of breaking. It is a calculation of the Minimum Breaking Strength, or MBS.

    The more up-to-date phrase for the term SWL is Working Load Limit, or WLL.

    The specific definition for the Working Load Limit (WLL) is: The maximum mass or force which a product is authorized to support in general service when the pull is applied in-line, unless noted otherwise, with respect to the centerline of the product.

    It is critically important to heed this number, which is set forth by the manufacturer, when lifting with any device, including a line, rope or crane. The number is calculated by dividing the Minimum Breaking Strength (MBS) by a safety factor that is assigned to that type and use of equipment, generally ranging from four to six unless a failure of the equipment could pose a risk to life. In the event that the failure of the equipment could pose a risk to life, the safety factor is ten.

    For example, if a hook has a Minimum Breaking Strength (MBS) of 1,000 pounds and a safety factor of five, then the Working Load Limit (WLL) would be 200 pounds.

    The Americans and Europeans then developed a more appropriate term and definition for the maximum load capacity of a particular lifting device, agreeing to use the term Working Load Limit (WLL) for equipment such as hooks, slings and shackles.

    In the cases of cranes, hoists and winches, the term Safe Working Load (SWL) was replaced by Manufacturer’s Rated Capacity (MRC), which is the maximum gross load which may be applied to the crane or hoist or lifting attachment while in a particular working configuration and under a particular condition of used.

  2. Tomi Engdahl says:

    Safe Working Load (SWL) sometimes stated as the Normal Working Load (NWL) is the maximum safe force that a piece of lifting equipment, lifting device or accessory can exert to lift, suspend, or lower, a given mass without fear of breaking. Usually marked on the equipment by the manufacturer. It is a calculation of the Minimum Breaking Strength (MBS) also known as Minimum Breaking Load (MBL) divided by a safety factor, usually ranging from 4 to 6 on lifting equipment. The factor can be as high as 10:1 or 10 to 1, if the equipment poses a risk to a person’s life.

  3. Tomi Engdahl says:

    What Is The Difference Between SWL vs WLL?

    WLL – Working Load Limit: This is the number marked on a piece of equipment indicating the maximum load that is safe to apply to it. It is a number established by the manufacturer of the item based on its known Minimum Breaking Strength (MBS) to which they will then factor in a margin of safety to get the final number. WLL’s are predominately found on lifting and rigging equipment and not on rope access equipment.

    SWL – Safe Working Load: This is a number you will rarely find marked on any equipment. It is a number derived from a formula worked out by a competent person based on the Minimum Breaking Strength of the item. The standard formula is currently 10% of the MBS for items of fabric (tape slings, ropes, etc.) and 20% of the MBS for items of metal. Almost all equipment used by the rope access technician is marked only with the MBS.

    It is very important to ensure that you are aware of the markings and numbers on all the equipment you are using and their meanings. Confusing an MBS and a WLL and then using the wrong piece of equipment can have serious consequences


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