Imagine this: You've invested millions in a modern high-rise or low rise such as villa. The elevators are sleek, the attractive panels respond flawlessly, and the manufacturer has officially handed over the system. Everything appears perfect - and you assume it's safe.
But here's the uncomfortable reality: there is a significant possibility that your elevator has never undergone the mandatory on-site tests required before being put into normal operation.
As independent auditors, we have observed a disturbing and recurring trend. Whether it's a local manufacturer or even some multinational companies, mandatory on-site load testing is often skipped before elevators are put into service.
In this article, we uncover why "looks safe" is not the same as "is safe", and why both manufacturers and building owners may unknowingly be exposed to serious safety and legal risks.
1. The Reality Gap: Appearance vs. Compliance
Most building owners assume that once a lift is "commissioned", it has been thoroughly tested and verified. This assumption is not only incorrect - it can be dangerous.
Commissioning typically verifies basic functionality:
- Does the lift move up and down?
- Do the doors open and close properly?
- Are controls responding Safety circuit?
- Elevator ride smooth? Etc...
However, true safety validation goes far beyond this.
A load test isn't just about weight - The purpose of a load test is not simply to check weight capacity; it's about ensuring that in a moment of crisis such as - a power failure, Overspeed condition / Free Fall, rope / Traction issue, or a brake malfunction - the mechanical safety systems will actually engage. If these tests aren't performed on-site, you are essentially using your passengers as the "test weights".
If these tests are not conducted on-site, under actual installation conditions, then the system's safety remains unverified.
In effect, the first real "test" happens when passengers start using the lift.
And that means - unintentionally - people become the test load.
2. The "No Excuses" Reality: Old Rules vs. Latest Standards
Some manufacturers argue that their equipment is fully tested at the factory, and therefore on-site testing is not required. This position is both technically incorrect and legally untenable.
Factory testing validates individual components under controlled conditions. However, site conditions are entirely different - involving actual installation, alignment, load distribution, environmental factors, and system integration. Safety can only be confirmed after installation, not before.
Whether a project follows latest international standards or established Indian standards, the requirement remains the same:
👉 On-site load testing is mandatory before the lift is put into normal service.
There is no version of elevator safety - old or new - that permits skipping these critical tests.
The following essential safety tests must be carried out at site:
- Car and Counterweight Safety Gear Test with rated speed and 125% of rated load
- Static Brake Test with rated speed and 125% of rated load
- Dynamic Single Brake Test with rated speed and 100% of rated load
- Full-speed Buffer Test
- Traction Test
- Overspeed Governor Tripping Test
These tests are not procedural formalities - they are life-safety validations. Skipping them means the most critical safety systems remain unproven under real operating conditions.
In simple terms:
If these tests are not performed on-site, the lift is not truly safe - only assumed to be.
3. The "Big Five" Tests You Cannot Ignore
Before any lift is put into normal operation, the following five critical on-site safety tests must be performed. These are not optional checks - they are fundamental validations of life-saving systems.
A. 125% Rated Load Brake Test
The braking system must be capable of holding the lift car stationary with 125% of its rated load.
For example, if a lift is rated for 680kg (approx 10pass), it must be tested at around 850kg.
This test verifies that the brake can safely hold the car during overload or emergency conditions. Without performing this test, there is no assurance that the brake will function when it is needed most.
B. Dynamic Brake Redundancy Test (100% Load)
Modern standards such as IS17900, EN81-20, and ASME A17.1 require that each individual brake element (brake liner/pad) must be capable of stopping the car independently.
This involves conducting a single-brake bypass test under rated load conditions.
In many cases, this test is skipped - creating a single point of failure, where the entire braking system depends on both elements functioning simultaneously.
C. Safety Gear & Overspeed Governor Test
This is the lift's primary emergency stopping system.
The safety gear must engage and grip the guide rails when triggered by the overspeed governor, typically tested under 125% rated load and rated speed conditions. The stopping distance must also be measured and verified within permissible limits as per standards.
A safety gear system that is not tested and calibrated on-site is unverified and unreliable, regardless of design claims.
D. Traction Verification Test
This test confirms whether the friction between the ropes and the traction sheave is sufficient to control and stop the lift.
Under 125% load conditions, the system must demonstrate that there is no rope slippage. If this test is skipped, there is a real risk that the motor may stop, but the car continues to move - a serious safety hazard.
E. Buffer Performance Test
Buffers - whether spring, oil, or polyurethane (PU) - act as the final line of defense in case of overtravel.
The buffer test ensures that, if the lift car or counterweight travels beyond its normal limits into the pit, the impact is safely absorbed rather than transmitted to passengers or structural components.
Without this test, the effectiveness of the last safety barrier remains unknown.
These five tests collectively ensure that the lift is not just operational, but safe under failure conditions. Skipping any one of them leaves a critical safety function untested and exposed.
4. A Message to the Stakeholders
To the Manufacturers: "Speed Is No Excuse for Negligence"
Rushing installations to meet handover deadlines at the cost of proper testing is not just poor practice - it is a violation of statutory requirements and a breach of contractual responsibility.
Skipping or bypassing mandatory on-site tests undermines the very safety systems that elevators are built upon. With the industry progressively aligning toward IS17900 and advanced global standards, the requirement for a comprehensive Technical Dossier will make such omissions increasingly transparent and indefensible.
The expectation is clear:
Engineering integrity must take precedence over installation speed.
A lift is not complete until its safety has been proven under real site conditions.
To the Purchasers (Developers & Homeowners): "Demand the Proof - Not Just the Product"
Before signing the handover certificate or releasing final payment, ensure that the lift has been properly tested and verified, not just commissioned.
Insist on the following:
- Load Test Reports for all mandatory safety tests
- Photographic / video evidence showing actual test weights inside the car during testing
- Verification of witnesses - ensure tests are observed by a competent person or an independent third-party auditor.
Do not rely on self-certification.
A company's internal checklist is not a substitute for validated on-site performance testing.
5. Why a Third-Party Audit Is Your Best Insurance
A competent third-party consultancy does not merely inspect elevators - it independently validates safety ,compliance, and real-world performance under actual operating conditions.
Engaging an independent auditor enables stakeholders to:
- Identify non-compliance before the lift is opened for public use
- Prevent accidents and operational failures by verifying safety systems
- Minimize long-term legal and financial exposure
- Ensure conformity with applicable codes, standards, and regulatory requirements
Safety is not an optional feature - it is a statutory requirement.
If critical tests, such as mandatory load testing, have not been carried out, the installation cannot be considered complete or compliant.
Based on extensive audit experience across high-rise and infrastructure projects, independent assessments have consistently revealed serious gaps - including missing safety tests, incorrect parameter settings, and unverified safety mechanisms. These deficiencies often remain hidden until a failure exposes them.
A fundamental question must be asked:
Is your elevator genuinely safe - or has it simply not failed yet?
There are several other mandatory safety tests beyond load testing, such as UCMP (Unintended Car Movement Protection) and ACOP (Ascending Car Overspeed Protection) etc. These critical safety functions will be explained and discussed in detail in the next blog.
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