As a standard practice installer or contractor shall arrange for the witnessing of the following tests on the fully equipped switchboards (main, submain distribution boards and Motor Control Centers MCC) including primary bus bars and connections at the factory, in accordance with IEC 439-1: High voltage power frequency tests on main and auxiliary circuits Dielectric/insulation… Read More »
Below is a typical steam boiler diagram for dummy’s to understand with name of each component or boiler part. First of all you should understand that there are many types and nomenclature of boilers. For example steam boiler, combi boiler, vaillant boiler, hot water boiler, gas boiler, electric boiler, weil mclain boiler, condensing boiler, oil boiler, burnham boilers, central boiler, lochinvar boiler, water tube boiler, system boiler, central heating… Read More »
Converting a hex to decimal is not difficult if you thoroughly understand what is mentioned on this page. The process of converting any hexadecimal number to its decimal or binary equivalent is a tricky one. If you are able to establish some rules you are lucky. But this is only possible if you see the… Read More »
What is decimal number system? The decimal number system has base 10. It uses the digits 0 to 9. What is number system? It is a system for representing numeric values or quantities using different symbols i.e. digits. What does base or radix mean? The number of digits (symbols) a number system use is called base or… Read More »
Cable sizing is done based on three parameters: Load current, Short circuit current carrying capacity, Voltage drop. Below are given simple steps for performing cable sizing calculations. Step 1 – Calculate Load Current: Calculate the load current from the load data available. Formula is: I=Load (in kW)/(sqrt(3)V(in kV)p.f) (A) The current obtained has to derated… Read More »
