Elevators are an essential part of modern life, transporting millions of people and countless tons of goods around the world each day. While elevators are generally very safe, it is important to be aware of the safety features that are in place to protect passengers in the event of an emergency.
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In addition to the safety features that are in place to help your elevator run smoothly, regular elevator maintenance performed by a professional mechanic is essential for ensuring the safety of your passengers and property. A qualified elevator technician should routinely inspect your elevator safety features and perform periodic maintenance tasks to identify and address any potential problems before they cause injury or damage.
Its paramount for each elevator company to ensure that their equipment is as safe as possible. Weve compiled a list of the top elevator safety features in commercial elevators, including the standard emergency features in case of power outages, the safety overflow valve, the door machine linkage feature, and the chain protection measures.
Commercial elevators come with a set of emergency features that automatically kick in whenever power outages occur. Generally, modern elevators are equipped with small power backups and will immediately travel to the nearest floor in case of a power outage. The cabs also have an alarm bell, intercom, lights, and fans that will continue working until power is restored.
Hydraulic commercial elevators have pump stations equipped with manual unloading valves. In a power outage, the unloading valve can be opened to return the main table to the ground from its middle position.
Another safety feature in hydraulic commercial elevators is the safety overflow valve located in the hydraulic pump station. The valves role is to prevent damage to the elevators primary components and main structure caused by overloading.
The overflow valve opens whenever the overflow pressure is synced with the maximal load pressure and overload, stopping the elevator until the excess cargo is unloaded. After that, the safety overflow valve will close back, allowing the elevator to move.
The door machine linkage elevator safety feature prevents people from accidentally entering the elevator hoistway. It works by locking the elevators door until it arrives on the designated floor.
Its simple in its design, practical and affordable for elevator companies to implement in their commercial elevator, making it a standard in safety features.
Providing double safety for passengers, the lifting chain is composed of a double chain, meaning that it has wrapped around the wire rope an extra chain to protect it in case it accidentally breaks.
Riders are double-insured with this commercial elevator safety feature. The wire rope is durable and has been calculated to withstand the loads in case the lifting chain snaps. It also needs to be maintained periodically with a coating lubricant to seal the cable from moisture in the hoistway, reducing its wear and corrosion.
The equipment has built-in safety features, but that doesnt mean that you, as an owner, should skip the periodical elevator maintenance for your commercial elevators. They may come with certain standard safety features, but a competent elevator service company must maintain them. A qualified elevator technician must ensure that every step of the maintenance process is taken care of.
Maintenance also ensures that you wont need any extra elevator repair services in the future. If done correctly and in a timely manner, it prolongs your elevators lifespan and guarantees the equipment runs as safely as possible. Find the certified elevator services you need for your commercial elevators here.
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Liberty Elevator is commited to elevator safety, from installation through the end of the elevator life cycle. As one of the top elevator companies in New Jersey, New York, Pennsylvania & Florida, Liberty Elevator understands that customer safety is our #1 priority. Whether providing an elevator maintenance program, installing nonproprietary equipment, or providing a flexible agreement, Liberty Elevator provides knowledgeable recommendations for all models and vintages of elevator equipment.
For more information about elevator safety features and tips to protect your guests, contact Liberty Elevator today.
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Reference Article: Why is periodic elevator maintenance important?
Reference Article: Why hire IUEC elevator mechanics for installations, modernizations, and maintenance?
If youre not an elevator aficionado but want to hold your own in a conversation with your technician, youve come to the right place. Not only do we provide a glossary filled with simple explanations of common elevator terms in Classroom On Demand, our new Elevators 101 blog series provides more in-depth information for eager elevator experts-to-be.
Our goal is to help you understand more about vertical transportation without having to decipher unfamiliar lingo in a hefty textbook. By the end of this blog, you can be sure youre up to date with the latest in rope configurations.
Without further ado, let the class begin!
Were so glad you asked! First, its important to note that this article only discusses traction elevators that use these typical rope configurations, sometimes referred to as roping arrangements. Given that traction elevators operate on a counterweight and pulley system, unlike the hydraulic elevator, wire ropes (AKA cables) or flat belts are vital to their function. And these ropes must be made of the best quality steel to ensure optimal performance.
Secondly, the ropes are held in place by a piece of equipment called the sheave which rotates the ropes to successfully move the elevator cab up and down. The word traction is defined as the adhesive friction of a body on a surface on which it moves. Without the ropes passing over the sheave and the counterweight helping to balance it all, there is simply no traction. This is where rope configurations come into the picture.
Rope configurations are ways ropes are wrapped around the sheave to improve elevator functionality. The reasoning behind a variance in configurations comes down to the fact that elevator design is not always straightforward with one sheave and one counterweight. Often, elevators will need secondary sheaves or deflector sheaves to offer the cab some space further away from the counterweight or add more traction to the system.
Omar Newsome is a Senior Technical Instructor at TK Elevator. He provided some great insight into how roping configurations can change an elevator system: Think of roping configurations much like a pulley system, because fundamentally thats what they are. We have several different options in pulley systems or roping configurations to choose from to best fit the customers need and building configuration. One example, 2 to 1 roping allows us to lift an impressive amount of weight with an elevator motor that fits in the overhead, saving valuable square-footage.
Keeping Omars example in mind, lets take a look at the differing arrangements and why your elevator could need to be set up this way.
For more elevator cableinformation, please contact us. We will provide professional answers.