Electrical Safety Testing Services Company in Dubai - UAE

Carelabs is authorized provider of Electrical Installation’s Study, Analysis, Inspection, and Certification services in UAE, and offer electrical safety testing services.

Electrical safety testing and certifying has been carried out by safety agencies for almost a century. Electrical and electronic products have changed dramatically over the years, requiring the safety standards to evolve to accommodate the changes in technology.

Not all consumers and manufacturers fully understand the reasons for and importance of proper electrical safety testing. Shock hazards vary in severity and range from a tingling sensation to a lethal jolt. Identifying, correcting, and eliminating shock hazards are the primary reasons for electrical safety testing.

The equipment used to certify and verify a product’s electrical safety also has changed over time. The technology has improved the work, accuracy, reliability, operator protection, and data capture of test results and critical product knowledge. Advancement to test equipment makes safety testing simpler and more efficient for the manufacturer.

Why Do We Need Electrical Safety Testing?

The obvious answer is consumer and operator protection from shock hazards. Shock hazards exist when a voltage and current are accessible to the operator with respect to earth ground.

According to OSHA’s Publication 3075, a shock hazard considered to exist at an accessible part in a circuit between the part and ground or other accessible parts if the potential is more than 42.4 V peak and the current through a 1,500-Ω load is more than 5 mA.

Studies recognized that the human body can feel an electrical shock with as little as 1.0 mA of current. Since the human body is not a fixed resistance, the voltage required to produce 1.0 mA of current can vary greatly based on the minimal impedance of the human body under various conditions. Some models use a human body resistance value of 1 kΩ to 100 kΩ.

Many types of consumer electronics are battery powered and carry out at safety extra-low voltages which are not considered a shock hazard to the consumer. However, the chargers for these batteries plug into the wall and have the voltage and current to hazard. As a result, they need testing for electrical safety compliance.

Consider your cell phone. Most of the time it presents no shock hazard to you. However, when you plug it into the charger and connect the charger to a wall outlet, you now have a possible shock hazard. If the insulation between the charger and your phone were to fail, the primary voltage applied to the charger could present on conductive surfaces to which you have access.

When Is Electrical Safety Testing Required?

Safety testing required at the point of manufacture, before the product is available to the user. Manufacturers of electrical and electronic products must make sure that no hazardous voltages or currents are accessible to the user. They need to test their products to decide if they meet minimum safety levels.

To analyze this issue, safety agencies, panels of consumer advocates and manufacturers have developed electrical safety standards. These standards make sure that properly designed and constructed products will be electrically safe. They identify types of equipment and the possible shock hazards from each, the minimum requirements for protecting the operator from high voltage and leakage currents, and test methods that decide if the product’s insulation system meets the minimum requirements. There also is the issue of design conformity and liability of the manufacturer.

The manufacturer’s liability rests on conformance. The manufacturer must make sure conformance by testing 100% of the products it produces. Proof of compliance, including records of tests carried out, required complying with safety agency standards.

The manufacturer must manage accurate records to make sure it builds products with the same materials and processes on the same basis. The manufacturer must report the safety agency of any changes to the material, design, or process used in producing its product. If the manufacturer makes a change, safety agencies may amend the safety certification. In some cases, the product may need to rectify.

How Do You Verify andCertifyThat Your Products Are Safe?

Test equipment manufacturers have created equipment specially designed to carry out the tests as defined in the safety agency standards. These tests include the following:

AC and DC Hipot or Dielectric Withstand Test

A typical hipot tester or dielectric withstand tester will apply an AC or DC high-voltage potential between the input live AC wires and AC ground or the ungrounded metal enclosure. The test passes if the measured current during this test does not exceed the specified maximal allowable current. Usually, electricity set for 5 mA or less, depending on the safety standard you are following.

Leakage Current Test

There are different t.