My specs call for redundant UPS backup for MV equipment auxiliaries. The Contractor has provided a redundant UPS for MV equipment auxiliaries but has also connected emergency lighting to the UPS. The Client's engineers say this should be a "dedicated" UPS and have no other systems, such as...
My specifications require all bolts to be sheradised. This includes tempered anchor (holding-down) bolts that will be completely encased in concrete. I understand that the sheradising process requires heat in the range of 370-500 degress Celcius and am concerned about the heat affecting the...
I have 700mm dia pipe columns that will be filled with concrete after erection. Max length is 18 meters. How much pressure will I need to pump the concrete?
