General guidance only — all construction work must be overseen by a supervising engineer This handbook is compiled from standards and laws with every source cited, andis being reviewed for certification by engineers Use it to know what to look at, what to ask and what evidence to request on site It is not an engineering determination and can't replace an engineer · Terms of use · Limitations of the handbook

Building systems

Sanitaryware, light fittings and electrical accessories

Page code P20 · 67 inspection criteria · 6 illustrations

This is the only stage in the whole project where the damage isn't caused by workmanship but by items that don't match what was agreed. Cheap and expensive sanitaryware models look very similar, switches and sockets are even harder to tell apart, and the person who chooses the items and the person who installs them are different peop…

This page contains
Do the items match the contract? — you can check only in one window
Electricity in the bathroom — the one place in the house where a mistake costs a life
There must be clear space in front of the distribution board — and there are figures for it
Mounting heights — no Thai standard, so you have to agree them yourselves
Testing sanitaryware at installation — five things in ten minutes
Light fittings and other electrical accessories
Every fixture must have its own valve
Pipes banging when a tap is closed — the standards have a fix for this

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