What size supply?

[davesparks]

I thought it would fail an inspection because the system is being upscaled from source (16 to 32 or even 63a) and it could be accidentally overloaded by an untrained or ignorant user.

The system is not being 'upscaled' nor is it being exposed to any more potential for overload than if the adaptor was not used.

It will not fail an inspection as there is nothing dangerous, potentially dangerous nor even remotely questionable or unusual about it.
The entire theatre and events industry would be royally screwed if such adaptors were not permitted or safe!

A 16A supply will have overload protection at 16A, regardless of what you plug in to it.

It is adaptors which go the other way without using an appropriate fuse or circuit breaker which are dangerous. For example a commonly found adaptor which is dangerous is the 32A plug with two 16A sockets connected directly to it.

The simple rule is that you can have an adaptor with a socket of a larger rating than the plug, but you cannot have an adaptor with a socket of a smaller rating than the plug without additional fusing.


How on earth are you managing to comply with BS7909 if you don't even understand this basic principle? Or are you another one of those people who ignore BS7909 completely and earn the whole of our industry a bad reputation?

 

[scoop]

-------ing received and understood

 

[Gazthesparky]

The system is not being 'upscaled' nor is it being exposed to any more potential for overload than if the adaptor was not used.

It will not fail an inspection as there is nothing dangerous, potentially dangerous nor even remotely questionable or unusual about it.
The entire theatre and events industry would be royally screwed if such adaptors were not permitted or safe!

A 16A supply will have overload protection at 16A, regardless of what you plug in to it.

It is adaptors which go the other way without using an appropriate fuse or circuit breaker which are dangerous. For example a commonly found adaptor which is dangerous is the 32A plug with two 16A sockets connected directly to it.

The simple rule is that you can have an adaptor with a socket of a larger rating than the plug, but you cannot have an adaptor with a socket of a smaller rating than the plug without additional fusing.


How on earth are you managing to comply with BS7909 if you don't even understand this basic principle? Or are you another one of those people who ignore BS7909 completely and earn the whole of our industry a bad reputation?

The amount of people who don't even have a grasp of Bs7909 is scary


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