mivey
Senior Member
With something like this:After you get done with this then you can decide how to "ground" the space station
http://dsc.discovery.com/technology/my-take/space-elevator-pugno.html
With something like this:After you get done with this then you can decide how to "ground" the space station
The only difference between this and underground conduits that stay filled with water is the saltwater.
That is not correct. All of the common wire types have note (51) in the submersible pump use column. Note 51 says "when evaluated, the product is marked "PUMP CABLE" or "SUBMERSIBLE PUMP CABLE". Without such markings the product has not been tested or listed for submersible use. (reference is the 2008 White Book)In the UL White Book-WIRE AND CABLE MARKING TABLES 1, 2, AND 3
Every single conductor with the suffix w is also rated for submersible pump use.
Is immersion the same as submersible? If so why the use of the two words?The following, I agree are not as common, but then again this is a special occupancy. (I have no point to the following other than there is some interesting uses of the word wet and its application.)
PORTABLE POWER CABLE (QPMU) correlated with 555.13.(a)(2)
This category covers portable power cable constructed and Listed for use
in accordance with Article 400 of ANSI/NFPA 70, ??National Electrical
Code?? (NEC)...........
..........The term ??wet?? indicates that the cable is
acceptable for immersion in water.
I don't read the word "exposure" the same as the word "submersible".MARINA AND BOATYARD CABLE(PDYQ) correlated with555.13.(a)(2)
USE
This category covers cable intended for use as flexible branch circuit
and feeder wiring in marinas and boatyards in accordance with Article
555 of ANSI/NFPA 70, ??National Electrical Code.??
The cable is rated 600 V, 75?C and is suitable for exposure to sunlight,
fresh water, salt water, gasoline, diesel fuel and lubricating oil.
After you get done with this then you can decide how to "ground" the space station
That is not correct.
All of the common wire types have note (51) in the submersible pump use column. Note 51 says "when evaluated, the product is marked "PUMP CABLE" or "SUBMERSIBLE PUMP CABLE". Without such markings the product has not been tested or listed for submersible use. (reference is the 2008 White Book)