Garden Heaters question.

[Richie_C]

Hi all I was at a job and an electrician was fitting 2 patio heaters.
They were fed by a 4mm armoured and were 2Kw each which was fine.
He was doing a nice neat job but I did notice that he cut the plugs off the heaters and terminated the flex straight into the adaptable box via a stuffing gland.
I asked about them now not being fused at 13A but he said they are going on a 20A mcb and each heater is only drawing a maximum of just over 8.5A which is ok?
Is it? or should there be either a socket for them to plug into or a fused connection unit?
I didn't question further as he was an older chap and seemed to have been doing his job longer than I've been around.
Your views/opinions on this would be appreciated thanks.

 

[Hellmooth]

Was it Tel?

 

[Toneyz]

These are a resistive loads so no overcurrent but still need to check for shock protection (or whatever the correct phase is everytime regs change) disconnection time 0.4 sec you say it is a radial circuit 20A mcb what was the Zs as outdoors I would of put on RCBO.Where was these A.boxes put ?

 

[Richie_C]

These are a resistive loads so no overcurrent but still need to check for shock protection (or whatever the correct phase is everytime regs change) disconnection time 0.4 sec you say it is a radial circuit 20A mcb what was the Zs as outdoors I would of put on RCBO.Where was these A.boxes put ?

Thanks for the reply,
I didn't gather too much information as I was a little busy myself but I know the breaker was a 20A mcb on a split load rcd board.
The adaptable boxes were mounted on the wall about half way up then the heaters to the side and about a couple of foot above.
I will try and find out what the zs was.
Thanks

 

[Toneyz]

I see your point you was making regarding cutting off of the plugtop could of put into IP S.F.spur (local isolation/protection of flex etc) but as I posted resistive load so should have no overload as long as Zs within max permitted for mcb shock (sorry fault) protection met also additional protection by RCD as you have just stated.

 

[Richie_C]

Ok thanks for clearing that up Anthony.
This is what I love about the forum. Fast responses with very informative information! (most of the time )

 

[westward10]

Only thing I would say is a stuffing gland may provide some ingress protection but it does not provide suitable cord restraint, they are not designed for this although it is common practice.