4 ms·
There's also a weight issue. The longer the shaft, the longer and heavier the cable must be, and the more tension and stretch. In some buildings, there may also
by ajarmst 9y ago
There's also a weight issue. The longer the shaft, the longer and heavier the cable must be, and the more tension and stretch. In some buildings, there may also be structural issues militating against an open shaft running the entire heightof the buldng.