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Manufacturing and assembly of switchgear: how to choose an assembler and verify documentation
EN IEC 61439-1 distinguishes between the assembly designer (clause 3.10.1), who verifies the design, and the assembly manufacturer (clause 3.10.2), who is responsible for the specific unit and its type testing.
LED Strips: 12V vs 24V, IP Ratings, and Selecting Drivers and Profiles
Why 24 V is superior to 12 V for long runs, how to size a power supply with a 25–30% safety margin, which IP rating is required for bathrooms and outdoor use, and when LED strips require an aluminium profile. An analysis including calculati
Understanding Switch-disconnectors: Types and Wiring Diagrams
What is a cam switch, how does it differ from a packet switch, how to select a device based on current, number of poles and positions, and typical application diagrams: mains-to-reserve, reversing, and ammeter/voltmeter selector switches.
Cables and wires in the EU: designations, standards and selection
In Poland, installers use both national designations (such as YDY, YKY, LgY, or OMY) and harmonised codes (such as H05VV-F, H07V-K, or H07RN-F). Wires up to 450/750 V are described by EN 50525, while 0.6/1 kV cables follow PN-HD 603.
Distribution board configurator
Work out circuits, protection and board size, then send the bill of materials with part numbers in one click.
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