Insulation

Disadvantages: • Breakdown occur at high temperature XLPE (Cross-Linked Polyethylene): used in insulation of medium voltages and high voltages cables as it can withstand high temperature, working temperature is from 90 to 110, and it can withstand up to 250 degree Advantages: • Low losses • Work properly at high temperature • not melt and thermal expansion occur Disadvantages: • some XLPE are sensitivity to water treeing EPR (Ethylene Propylene Rubber): type of class of polymers work at temperature

recommended standards. Frequently New Zealand homes are cold, damp and mouldy, and a lot of kiwis sleep in unheated bedrooms putting their health at risk. The latest house condition survey said around half of houses fall short of having suitable insulation, that's 47%. There are houses with no installation which means there is high risk of kids with respiratory illnesses like pneumonia, bronchitis and rheumatic fever and 1600 people die a year which

are thickness and construction check, mechanical properties of insulation test before and after ageing, mechanical properties of PVC oversheath test before and after ageing, ageing test to check the compatibility of materials, loss of mass test, pressure test at high temperature, test on sheath at low temperature, heat shock test, hot set test for XLPE insulations, water absorption test on insulation, shrinkage test for XLPE insulation and flame spread test on single cable. The other cable testing

conducted to investigate the optimum insulation thickness of two different insulation material glasswool and rockwool . The optimum insulation thicknesses from glasswool and rockwool were found respectively 0.003 and 0.057m higher in environmental analysis than life cycle cost analysis Consideration of moisture content for optimum thickness: Building envelopes exposed to the hot, extreme humid surroundings with intense

10m×10m external wall in Cardiff CF14 3UA. Based on CIBSE guide A (1999) to assess the two typical external walls. Dense concrete walls, 19mm render, 200mm dense concrete block, 25mm polyurethane insulation, 12.5mm plasterboard. And Precast concrete panel walls, 80mm dense concreate, 25mm EPS insulation, 100mm dense concreate, 50mm airspace and 12.5mm plasterboard. These two kind of materials has quite similar thermal performance, the dense concrete has 0.90 u-value, while the precast concrete panel

Precast/prestressed concrete sandwich wall panels are composed of two concrete wythes or layers separated by a layer of rigid foam plastic insulation. Sandwich panels are created in North America for quite 50 years. Early sandwich panels were of the non-composite kind and consisted of a thick, structural wythe (or hollow-core slabs, double tees, or single tees), a layer of rigid insulation, and a non-structural wythe. Composite sandwich panels were factorymade later. Materials employed in the manufacture of sandwich

MMP 112 SUSTAINABLE CONSTRUCTION TRIMESTER 1 2015 ASSIGNMENT 1 SUSTAINABILITY ASSESSMENT Table of Contents 1. Executive Summary 2. Introduction 3. Task 1- Energy efficient and sustainable technologies 4. Task 2- Description of house 5. Task 3- How to improve your homes environmental performance TASK 1 – ENERGY EFFICIENT AND SUSTAINABLE TECHNOLOGIES 1. EVAPORATIVE COOLING One effective form of air conditioning, which is fitting for less humid states of Australia and is based

If you've got your heater running non-stop this winter, but your home is still cold, the warm air might be escaping. You might not realize this, but there are actually several ways that warm air can escape from your home. Here are just three of the ways that your home could be losing its warmth. Improperly Placed Thermostat You might not realize this, but your thermostat plays a big role in how warm your home stays during the winter. This is particularly true if it's installed in the wrong place

want wooden frame. On the other hand, aluminum frames are more durable than wood but the problem with these frames is that they offer less insulation as compared to other materials. So if you choose aluminum frames, you might need to add thermal breaks to increase insulation. It’s better if you consult with your contractor first. Vinyl frames offers great insulation among all when you compare replacement windows and it is the best solution but they incur more cost upfront. But you need to keep in the

and garages. If you have no floor insulation, you are losing one thing for sure - the heat through your floor! If you have epoxy flooring in your garage then floor insulation is easy to get and you can do it yourself. In order to do it right, you need to understand why insulation is so important. First of all, by losing heat you lose money. That is because you will definitely