Page 4 - Help & Advice

Mould is a widespread problem affecting old and new buildings alike, particularly when new windows or doorframes are fitted retrospectively. Thermal imaging can be used in conjunction with humidity and air temperature measurement to detect mould-friendly conditions before a serious problem develops, thereby protecting the health of occupants and workers as well as lowering costs of remedial work.

Solar panel installations are becoming increasingly popular from both a private, commercial and governmental perspective amid a fall in installation costs and a long-term price rise in non-renewable energy sources such as coal, oil and gas. However, solar panels require regular maintenance, which is where thermal imaging can provide an efficient solution to many of the challenges posed.

The introduction of the 18th Edition Wiring Regulations saw a change in the requirements surrounding overvoltage protection a.k.a. surge protection that will result in a much higher prevalence across a range of different properties. Here, we aim to have a look at the consequences of electricity surges, related regulatory requirements, the different types of surge protection device (SPD) available, and where and when to install them.

The Energy-related Product Directive (ErP) is a wide ranging piece of EU legislation that aims to reduce emissions in Europe through improving the labelling and efficiency of a wide range of appliances from lighting to refrigerators. It has now been in force for a number of years having first been passed in 2009 but various provisions have come into force at later dates. These include Regulation 813/2013 that sets out requirements for the eco design of space heaters and combination heaters.

Studies suggest that low cost fixes - particularly to do with more efficient use of energy - can save up to 20% of operating costs in electrical installations and production facilities. Regular monitoring and analysis of bills and overall consumption can help highlight when there is a problem but unfortunately do not isolate the source of wastage. Power and energy loggers provide one of the most convenient and accurate way of measuring electricity use, thus locating malfunctioning processes within an installation which can then be remedied.

One of the quickest ways to assess the performance of building insulation and identify problem areas in walls is an outdoor thermographic inspection using a thermal imaging camera. However, there are several precautions that need to be taken in order avoid inaccurate results and ensure that the observer gains as much information as possible out of the inspection.

One of the first things that everyone will notice about our thermal imaging cameras and infrared thermometers is that the emissivity capabilities are defined for every single product. Emissivity is either fixed - typically at 0.95 - or adjustable at varying increments between 0.1 and 1 in most thermal imaging cameras. This article aims to explain what emissivity is, how it is determined, and the practical challenges it presents for thermographers and technicians.

For many years, Residual Current Devices or RCDs have been commonplace in the vast majority of electrical installations.

RCDs provide additional protection against electric shock by constantly monitoring the current flowing through Line and Neutral conductors within a circuit, or an individual item of electrical equipment. Under usual circumstances, the current flowing within the two conductors is equal.

One of the most useful applications of thermal imaging for heating engineers solves one of the most frustrating problems associated with flue gas analysis. Concealed boiler flues can often be difficult to trace across interior walls in properties and it is sometimes difficult to see whether flues have been well maintained or even correctly installed. Thermal imaging provides a helpful aid when inspecting these flue runs, thus saving time and money.

The 18th Edition Wiring Regulations (BS7671:2018) come into force on 1st January 2019 having been published in July earlier this year. There have been several changes to the regulations that affect various aspects of electrical installations. However, this does not necessarily mean that wholesale change is required in terms of test equipment for electrical contractors so it is important to carefully consider before making any purchases.