Recent content by simonsk

Not where I am from, I thought PAT stood for Portable Appliance Test.

Apologies for the vague question! I would like a PAT testing machine that performs the same tests (easily) on a three phase piece of equipment.

Can anybody recommend a machine that will electrically test both three phase and single phase appliances easily? The three phase appliances are not hard-wired (5-pin 3P+N+E type plugs). Thanks in advance Simon

This is a useful source of reference: http://www.rotork.com/public/backend/uploads/fd.php?file=documentversion/item/primary/204/file1/G007E.pdf

Can anybody help with the following problem: We are working on a project that consists of an acrylic bonded panel (similar to a double glazed window) that has circular discs randomly placed within the 'sandwich' and bonded to both sides of the sandwich. We are struggling to get a visually...

Feedback: I would like to thank everybody that has suggested solutions to my problem. Wet and dry paper left the surface too opaque and the flow was less than perfect. Varnish also left the surface opaque and the flow was still poor. I then flame polished a new sheet and it solved the...

Thanks btrueblood. I will look into the super-absorbent polymers. There are 5, 1 metre wide panels that are joined using silicone sealant. You will have to excuse my ignorance over this! Do you think the silicone has contaminated the surface via the water flow? We have tried wet & dry on a...

Thanks Demon3. Unfortunately we cannot change the material as the feature is already installed. We have been called in to try to sort it out. I have toyed with the idea of fixing a sheet of alternative material to the front of the existing PMMA. We have had similar features working with other...

Thank you for your suggestions. I have purchased some more development sheets to try some of these ideas on. I have just applied a varnish to one sheet and will hopefully trial it tomorrow. The perspex needs to remain clear as there is an etched pattern on the reverse that needs to be...

Hello all. I am currently looking into a problem for a client. They have a vertical perspex sheet the they are running water over the surface to form a waterwall feature. The water is separating into rivulets but the desired effect is to have uniform flow across the whole surface. We have...

Thanks EdStainless. I spoke to a friend of mine who works for a copmany that manufacture cleaning products and he advised me of the strongest alkaline product available in the uk (domestic). I got some on this morning and cleaned half of the panel (left it on for 30 mins and swilled off with...

I am not sure if I am in the correct forum here but hope that someone can help. I am currently involved with a project that includes water flowing over a stainless steel (SS316) sheet (approx 1.5m tall x 0.9m wide). Simple(!), but I have a mojor problem with getting the water to flow over the...

I am working on some water features that consist of acrylic containers full of water. There are some LED lamps that sit underneath the feature. The lamps are 230VAC and powered from an isolating transformer. The isolating transformer is situated in the ceiling void above the water feature. The...

Anyone got anything else to add on this, suggestions etc? I am planning a site visit soon. The customer is quite happy to leave it running 'as is'. With the reduced carrier frequency on the two Mistusbishi drives, everything is running fine (apart from the audible noise, but they don't mind...

Thanks for the comments. The carrier frequency has not been changed by another operator. I am very particular about bonding and all supply/motor cables are screened (with screens connected at the panel's main earth point). All the drives and filters have dedicated earths running to the main...