Recent content by AYahya

thanks Rick, the housing is 2 years old and has been in water many times. drilling small holes at the end of the cracks is not really an option for me. but i can take the fittings out and apply the adhesive if this might release the stress and help solve the problem. what do you think ?

Thanks a lot But I guess the epoxy is not water thin so it won't penetrate the crack area. I think I'll try the super glue first. What about the stress crack ? Are they going to stop?

any suggestions ?

Hi i am reposting this question in the polymer section with some updates. i have a clear polycarbonate camera housing ( the one you put a professional camera in it and take it deep underwater. its rated to 60m depth ). i found 3 tiny surface cracks each of 2-3 mm long around one of the control...

Thanks, i don't know much about bonding material or chemicals, so i still have some questions to ask. is using cyanoacrylate ( super glue ) better than using Methylene Chloride ? is it going to penetrate the crack and weld it permanently without turning it to white color or cause more stress to...

Hi i have a bit of unusual question. i have a clear polycarbonate camera housing ( the one you put a professional camera in it and take it deep underwater ). i found 3 tiny surface cracks each of 2-3 mm long around one of the control glands penetrating the housing wall. i know its surface...

what are the machinery required for a MS flat bars production line ?

Hi i am planning to build a steel flat bar production line of capacity 20 Tons/day. the plant uses scrap steel as raw material to produce flat bars of different sizes. what are the suitable machinery and process stages for such line ?

Hi does any one have this book ? i am thinking of buying it but i need to know your review first. Electric Motor Repair by Robert Rosenberg & August Hand http://www.amazon.com/Electric-Motor-Repair-Robert-Rosenberg/dp/0030595843

Does the IEC states that lighting in metal rooms or enclosures should be 24 V not 220 VAC for safety reasons?

fr=0.4 to 0.5 Hz depends on load rotor current = 600 A rotor voltage = 1820 V

thanks if the scope is not available, what can be done ? and if i used the clamp anyway, what would be the error in measuring?

how can I measure rotor current in running slip ring AC motor ? I know that usual clampmeters can not measure low frequency current ?

what is the recommended tests that should be performed on MV slipring motors?

What is the recommended ground resistance for a lightning protection system? i have a system consisting of 3 lightning rods connected to network of 4 earth rods and the earth resistance measured is 1.2 ohm. where is that from the standard?