We used to be allowed to use ships ladders in previous version of NFPA. Now there is no mention of ship ladders, just alternating tread devices and industrial stairs, which are just steep and narrow stairs, maximum angle about 46 degrees. I didn't know if anyone had found anything I may have missed. Any help or comments would be greatly appreciated.
Thanks in advance to all that can help.
Thanks in advance to all that can help.
Arthur Wood
CADD Manager
EH Danson Associates
St. Johnbury, Vermont
CADD Manager
EH Danson Associates
St. Johnbury, Vermont