#1.5mm cable
#10.5kW shower
#10mm cable
#13 amp spur
#18th edition consumer unit
#18th edition wiring regulations
#1mm cable
#2-wire PIR
#2.5mm cable
#2.5mm voltage drop
#2004 wiring colour change
#22kW charger
#230V
#24-hour timer
#3 amp fuse
#3-wire PIR
#32A circuit
#3kW heater element
#4-way switch
#400V
#45 amp MCB
#45 amp switch
#50 amp MCB
#50mm rule
#6A MCB
#6mm cable
#7-day timer
#7kW charger
#8.5kW shower
#8V 24V transformer
#9.5kW shower
#A-level electronics
#AC coupling
#AC voltage
#AFCI
#AFDD
#BS 7671
#BS 7671 amendment 2
#BS 7671 bathroom
#BS 7671 landlord
#BS 7671 voltage drop
#Building Control
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#C1 C2 C3 codes
#C1 code
#C2 code
#C3 code
#COM L1 L2 switch
#DC voltage
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#DNO notification
#EICR
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#EICR explained
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#EV charger installation
#EV charger three phase
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#ElectraSim
#FCU
#FCU wiring
#FI code
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#IEC 60446
#IEC 60529
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#IP rating
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#IP65 socket
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#LED dimmer
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#MET
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#PEN fault protection
#PIR floodlight wiring
#PIR light switch
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#PME
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#RCBO
#RCBO consumer unit
#RCBO shower
#RCBO tripping
#RCD
#RCD bathroom
#RCD consumer unit
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#SELV bathroom
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#UK wire colours
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#adding a socket
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#appliance fault
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#bathroom electrics UK
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#bell buzzer
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#consumer unit
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#how consumer unit works
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#how to add a spur
#how to use a multimeter
#how to wire FCU
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#how to wire a lighting circuit
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#how-to
#immersion heater timer
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#overcurrent
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#overload
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#passive infrared sensor
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#residual current
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#rewirable fuse upgrade
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#ring circuit
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#ring doorbell wiring
#ring final circuit
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#security light wiring
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#short circuit
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#solar PV
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#split load consumer unit
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#spur
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#staircase lighting
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#sub consumer unit
#supplementary bonding
#surface wiring
#surge arrester
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#switch drop
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#tenancy electrical safety
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#three core and earth colours
#three phase
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#three phase wiring
#three-way light switch
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#tiled floor heating
#timer switch
#timer switch wiring
#trace electrical fault
#trailing edge dimmer
#transient overvoltage
#tutorial
#twin and earth
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#two-way lighting circuit
#two-way switch
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#underfloor heating wiring
#unfused spur
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#wiring regulations
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#wiring safety
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#wiring timer switch
#workplace safety
#zone 0 zone 1 zone 2
Intermediate Guide
Surge Protection Devices (SPDs) Explained: What They Are and What BS 7671 Amendment 2 Requires
Voltage surges from lightning and switching events destroy electronics silently and instantly. This guide explains how Surge Protection Devices work, the four SPD classes, where BS 7671 Amendment 2 now requires them, and how to choose the right SPD for a domestic or commercial installation.
⏱ 18 min read
Read → Intermediate Guide
AFDDs Explained: Arc Fault Detection Devices and the BS 7671 Amendment 2 Requirements
Arc Fault Detection Devices (AFDDs) are now referenced in BS 7671 Amendment 2 for new domestic installations. This guide explains what AFDDs are, how they detect dangerous arcing faults that MCBs and RCDs miss, where they are required, and whether you need one.
⏱ 14 min read
Read → Intermediate Guide
RCD Protection Zones Explained: How to Design a Modern Consumer Unit
Split-load, fully RCBO, whole-board RCD — which layout gives the best protection without constant nuisance trips? This guide explains how RCD protection zones work, how to plan circuit allocation, and what BS 7671 actually requires for new and upgraded consumer units.
⏱ 15 min read
Read →