18th Edition Amendment 1
BS7671 Amendment 1 – Section 722 Electric Vehicle Charging Installations.
Also download the Corrigendum to BS 7671 pdf.
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MCCB Max Zs Values
Maximum earth loop impedance values (Zs) for BS EN 60947-2 MCCB’s vary between manufactures. Find the correct chart with the Max Zs Values app.
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60947-2 Max Zs Charts
Print or download max Zs tables for BS EN 60947-2 protective devices with the max zs values app.
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Cable Calculator App Update – 2019
Another update to the cable sizing calculator, Cable Calc. Find out what’s new in this version.
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How to Calculate kVA
How to calculate to and from kVA, Amps, kW, Volts and Power Factor, with single phase and three phase calculation examples.
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Local Isolation for Kitchen Appliances
Recommended locations of local isolators and fused spurs for kitchen appliances, distances and locations to be readily accessible, find out here.
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Distance of a socket from a sink
Recommendations and guides on locating sockets, spurs and isolators near a kitchen sink. Electrical accessories should be located at a safe distance from sink or drainer unit.
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Max Zs Values App Update for 2019
We have published an update to the Max Zs Values app, find out what great new features this 2019 version brings.
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How to code observations for an EICR
A guide to selecting and coding EICR observations. EICR codes include C1, C2, C3, FI and N/V, find out what they mean and how to use them.
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Max Zs Values 18th Edition BS 7671
Learn how to calculate the maximum earth loop impedance values to the 18th edition of the wiring regulations. 100% and temperature adjusted Zs.
