Electrical Safety Solution

Thermogtaphic Scan

Thermography is a method of inspecting electrical and mechanical equipment by obtaining heat distribution pictures. This inspection method is based on the fact that most components in a system show an increase in temperature when malfunctioning.

Standards
(A) Bangladesh National Building Code 2006 –Part-8, Chapter-2.
(B) Bangladesh Electricity Rules 1937 – Appropriate Sections.
(C) NETA MTS-2011 – Appropriate Sections
(D) ASTM E1934‐99a Standard Guide for Examining Electrical & Mechanical Equipment With Infrared Thermography
(E) Alliance Fire Safety Standard – Appropriate Sections

Cable Insulation Resistance Test (IR) Test: 
The Cable Insulation Resistance Test (IR) test (also commonly known as a Megger) is a spot insulation test which uses an applied DC voltage (typically either 250Vdc, 500Vdc or 1,000Vdc for low voltage equipment <600V and 2,500Vdc and 5,000Vdc for high voltage equipment) to measure insulation resistance in either kΩ, MΩ or GΩ.

The measured resistance is intended to indicate the condition of the insulation or dielectric between two conductive parts, where the higher the resistance, the better the condition of the insulation. Ideally, the insulation resistance would be infinite, but as no insulators are perfect, leakage currents through the dielectric will ensure that a finite (though high) resistance value is measured.

Firstly ensure that the equipment to be tested and the work area is safe, equipment is de-energized and disconnected, all the relevant work permits have been approved and all locks/tags in place. Next, discharge capacitances on the equipment (especially for HV equipment) with static discharge sticks or an IR tester with automatic discharging capabilities. The leads on the IR tester can then be connected to the conductive parts of the equipment.

Standards
(A) Bangladesh National Building Code 2006 – Appropriate Sections
(B) Bangladesh Electricity Rules 1937 – Appropriate Sections.
(E) Alliance Fire Safety Standard – Appropriate Sections
(D) NFPA 70 – Appropriate Sections

This instrument makes earth resistance measurements with fall-of-potential method, which is a method to obtain earth resistance value “Rx” by applying AC constant current “I” between the measurement object “E” (earth electrode) and “H(C)” (current electrode), and finding out the potential difference “V” between “E” (earth electrode) and “S(P)” (potential electrode).

Standards

(A) Bangladesh National Building Code 2006 – Appropriate Sections

(B) Bangladesh Electricity Rules 1937 – Appropriate Sections.

(E) Alliance Fire Safety Standard – Appropriate Sections

(D) NFPA 70 – Appropriate Sections

DETAILS ELECTRICAL SAFETY ASSESSMENT:

The following activities and sequences will be followed:

• Check electrical design and drawing to identify any major lapse and deviation in the entire as Built System.
• Assessment of the electrical load management scheme according to load capacity with cable size measurement.
• A thorough visual Assessment of the entire electrical system to identify circuit components, visual defects, visual circuit inconsistency and deviation from design, damaged component, sign of overheat, and sign of any other potential problems.
• Digital Thermal imaging of key locations.
• Cable Insulation Test of all Distribution Board.
• Total DB Schedule
• Earth resistance test.
• The photo taken of the Electrical Non Compliance (NC) issue.
• Personnel protection aspects.

An improvement in energy efficiency within your organization can potentially bring significant business benefits. With this in mind, Extensive has developed energy audit services to help you find the best information for improvement opportunities. Energy audit services are a key part of our dedicated energy efficiency services and the first step towards your comprehensive energy management strategy.

Our audit provides you with a clear understanding of energy consumption in your buildings and facilities. Quantitative findings can provide substantial practical guidelines for:

• Continuous improvement in production efficiency
• Identifying cost saving opportunities in energy efficiency

Starting with the development of an energy consumption inventory detailed auditing activities will be conducted to identify buildings and facilities with particular focus on rationalizing their energy profiles. Field measurements will be also taken to quantify critical operating parameters. Following the establishment of an energy consumption profile, the potential energy saving opportunities can be identified. Energy management strategy and particular energy reduction programs can be organized and planned with reference to energy audit results.

Our energy audit services can further provide a range of additional benefits. The findings of an energy audit can be a good reference for your management in supporting commercial decisions. You can acquire a sustainable reputation with your customers. As the law or policy for energy efficiency will be enacted sooner or later; earlier preparation can enhance your competitiveness

An energy assessment is the first step in fully understanding how energy is being used in your building. Only then, can you begin to reduce operating expenses and improve the performance of your building, ultimately increasing your profitability?

Why Energy Assessment?”

• Reduced Energy Expenses.
• Identify Problems.
• Increased Employee Comfort.
• Personalized Recommendations.
• Show Environmental Concern.
• Increased Property Value.
• Longer Equipment Lifespan

An annual maintenance contract is an agreement between a company and a provider that sets expectations for the ongoing maintenance of machinery or property that the company purchases from the provider.

Scope of Work:

Thermographic Scan
Earth Resistance Test of Electrical System
Earth Resistance Test of Lightning Protection System (LPS)
Cable Insulation Resistance Test
Electrical Load Mesurment/ Management Program
Inspection of Lightning Protection System (LPS)
Transformer Oil Test.
Electrical Safety Training Program
Existing Electrical Single Line Diagram (SLD)_As-built Draqing Update