I have an at my local scout group. They have employed a company to sand & varnish their hall floor. the company is using a couple of Lagler Hummel machines 230v 50Hz each requiring a 16A supply. (as a screenshot).
A 16A fused socket has been connected to the hut ring main (by replacing a faceplate) to bypass the need for a 13A plug. This was tried but obviously, the startup current blew the 13A fuse.
With both of the machines, they start but the bag refuses to inflate (only one machine tried at a time). The company suggested this was a supply issue..
A separate 16A socket supply was then configured from the consumer unit, from a different phase, using what would have been the cooker circuit but the issue persisted.
The scout group then borrowed a 5KVA generator and again the problem exists. Post the generator test you would assume that the issue was with the machine.. but there are 2 of them identical.
Anyone any thoughts or seen this behaviour before and can provide any pointers?
The company is adamant is not their machines - they were fine on their last job a couple of days ago!
My god, that is almost identical a story to one I witnessed on Tuesday, this one a concrete planer.
(Not my job, I was observing whilst wrangling some singles spaghetti on a scaffold.)
The planer was run via a 5KVA transformer, originally, of a 13A plug.
Blew the fuse in the plug, I changed the fuse for them and clamped it maxing out at 21A, blew a second fuse in short order.
I suggested the machine was Donald but the hire shop said its fine and there was an issue with the power on site*, so the sent over a 5KVA genny.
Genny rigged up, machine just stalled out the moment it touched the floor, they soldiered on and blew the genny after 15 minutes.
The similarities to the OP are astounding.
*this was in a commercial lock up with a 50A TP supply, brand new. Nothing in the board (as I'd ripped everything out) appart from one double socket directly below the board on a C20 RCBO.
