Electrical Inspection
DARLSCO has approved qualified and authorized Electrical Inspectors Engineers to conduct Inspection based on standards BS EN 60204-1, IEC 61557-2, IEC 61557-3, IEC 61557-4, IEC 61557-5, IEC 61557-6, IEC 61557-7, IEC 60529, DEWA/ FEWA Regulations and relevant International standards/ regulations. The Inspection, Testing and Certification of electrical components including but not limited to
Voltage and Frequency
Insulation Resistance test
Continuity test
Loop Impedance test
ELCB/MCCB Tripping time test
ELCB/MCCB Tripping
Current test
Earth Resistance test
Phase Sequence test
Most Familiar equipment’s include Generators, Precision Cutting Machines, Hydraulic Press Machines, all kinds of Motor driven equipment’s.
We conduct Inspection & Certification of all kinds of electrical Panels including but not limited to MDB ( Main Distribution Board (MDB), Sub Main Distribution Board (SMDB), Distribution Board (DB), Earthing by using thermal imaging techniques. (Thermography) based on ASTM E 1934-99 a. Thermography Inspection is important to identify critical findings inside concealed wirings in multistoried Buildings and Factories. The timely identification of critical findings will help the client to reduce the risk of fire due to short circuits as well to arrest frequent loss of electricity.
INFRARED THERMOGRAPY
Infrared Thermography(IRT) will help to identify any surface temperature variance underneath the surface of a wall, or a floor, and other places that are usually out of vision/sight. IRT allows us to see gaps included but not limited to wall to ceiling; cracks in the walls that are hidden by the rendering or tiled wall finishes, water leaks, trapped moisture and faulty electrical connections and components.
Thermal Imaging is the fastest way to identify energy loss, inefficient HVAC systems, missing insulation, , radiant heating, water damage on roofs and a lot more. The Patterns of heat loss that are invisible to the naked eye can be identified with the use of a thermal imaging camera. IRT allows an immediate detection system of anomaly/exception within a property and measurement data is easily compiled into a report.
IRT is a non-invasive and highly effective method of monitoring as well as troubleshooting the actual conditions of buildings. The principle of operation is by measuring the infrared energy of any objects’ surface and creating an in-depth visual image displaying its temperature profile. Thermal imaging is an essential tool in energy audits and condition audits.
The Objective of Thermography survey comprises but not limited to,
Build a database of all assets.
Collect actual amperage draws, where applicable and deemed safe.
Collect ambient temperatures.
Collect OEM data (model / Serial #, ratings, etc.).
Capture digital image of each asset.
Use infrared thermography to scan and capture thermographic image of every targeted electrical system.
Perform visual damage and code compliance reviews to highlight potential gaps with NFPA 70, NEC and OSHA gaps.
Provide Field Severity Reporting – highlighting any “critical” or “serious”.
Immediate and end-of inspection notification of any critical and/or serious thermal anomalies.
"in-service inspection & testing of electrical equipment". The Inspection needs to be carried out on regular basis to check the condition for continued use. DARLSCO periodic Inspection will be acknowledged with Electrical Condition Report (ECR) to clients / customers.
APPLICATION OF IRT IN INDUSTRIES
Electrical Inspection
Mechanical Inspection
Building Envelope Inspection
Water Leakage Inspection
MOTOR CIRCUIT ANALISYS
DARLSCO conducts these test to simple resistance, complex resistance, phase angle, inductance and ground insulation condition and thereby assess the status of electrical motor windings. This test provides critical information regarding the implementation of or, adaptation required, to existing motor maintenance programs.
FLUID ANALSYS
Infrared Thermography study is conducted on critical liquids - transformer coolant, machine and engine lubricants, additives, diesel and other fuels. The results indicate the presence and potential effect of suspended contaminants and wear debris in the fluid, both of which act as early indicators of the overall condition of the mechanical component
BUILDING APPLICATIONS
Some of the most important factors influencing the temperature readings are:
Thermal conductivity Different materials have different thermal properties. Insulation tends to warm up slowly, while metals tend to warm up quickly. This is called thermal conductivity. Difference in thermal properties in two different materials can lead to large temperature differences in certain situations.
Emissivity To read correct temperatures, one important thing needs to be taken into account, and that is a factor known as emissivity. Emissivity is the efficiency with which an object emits infrared radiation. This is highly dependent on material properties.
Indoor and outdoor temperatures - To detect missing or ill performing insulation using thermal imaging cameras there needs to be a difference between the temperature indoors and the temperature outside. It is often possible to do work with smaller temperature differences, but usually a temperature difference of at least 10 °C between the two sides of the wall is advisable
Influences on the outside of a building - It probably goes without saying that direct sunlight can influence thermal readings, but sunlight can have long lasting effects as well
Heating and ventilation systems - External influences on surface temperatures can also be found indoors. Ambient temperature can influence the object surface temperature, but there’s another factor as well: climate control. Heating systems create temperature differences that can cause misleading thermal patterns.
Reflection Some materials, such as most metals, reflect thermal radiation much like a mirror reflects visible light. Reflections can lead to misinterpretation of the thermal image; the reflection of thermal radiation from the operator’s own body or from a light bulb might lead to a false temperature reading.
Considering all the above factors, DARLSCO will ensure to carry out proper IRT study.
INSPECTION SOALR PANELS
The use of thermal imaging cameras for solar panel evaluation offers several advantages. Anomalies can clearly be seen on a crisp thermal image and - unlike most other methods – thermal imaging cameras can be used to scan installed solar panels during normal operation. Finally, thermal imaging cameras also allow to scan large areas within a short time frame
INSPECTING WIND TURBINES
Thermal imaging cameras are used to inspect electrical and mechanical installations all over the world.
The thermal data gathered help to prevent dangerous accidents and costly downtime. All critical components of a wind turbine can be monitored using a thermal imaging from Systems.