3 Colo. Code Regs. § 718-1-5
Note: Timeframes relate to the ropeway installation date or modification date whichever controls, unless otherwise noted. For electrical drive or control system modifications performed on surface lifts installed prior to April 15, 2019, the requirements of ANSI B77.1-2011 shall be met (Refer to Annex R.5).
IN ADDITION TO ANSI 5.1.1.3 Location
Jan, 1, 1977 to Present:
Power lines shall be located a minimum distance equal to the height of poles or support structures from any passenger tramway so that poles and electrical lines cannot touch any portion of the tramway, loading or unloading points or platforms and tow path, if applicable, upon collapse of poles or lines, unless suitable and approved precautions are taken to safeguard human lives.
Note: Timeframes stated for this Rule define the air space requirements for each ropeway at the time when the encroachment was known to the area and DO NOT pertain to the installation date of the ropeway.
May 15, 2000 to Present:
No passenger tramway installation shall be permitted to operate when a structure encroaches into the air space of the passenger tramway, defined as the area bounded by vertical planes commencing at a point thirty-five (35) feet from the intersection of the vertical planes of the ropes or cables and ground surface.
For purposes of this Rule, buildings controlled by the licensee used primarily for maintenance and operation of the lift and other tramways shall not be considered structures; however, buildings must comply with the following.
Jan. 1, 1994 to May 15, 2000:
No passenger tramway installation shall be permitted to operate when a structure encroaches into the air space of the passenger tramway, defined as the area bounded by planes having an outward slope of one horizontal and two vertical and commencing at a point twenty (20) feet horizontally outside of the intersection of the vertical planes of ropes or cables and ground surface.
Dec. 30, 1977 to Jan. 1, 1994:
No passenger tramway installation shall be permitted whenever the Passenger Tramway Operator does not have permanent and irrevocable control of the following air space (except when the passenger tramway is located on Forest Service land): the area bounded by planes having an outward slope of one horizontal and two vertical and commencing at a point twenty (20) feet horizontally outside of the intersection of the vertical planes of ropes or cables and ground surface.
Prior to Dec. 30, 1977:
Not required
Note: Timeframes stated for this Rule define the air space requirements for each ropeway at the time when the encroachment was known to the area and DO NOT pertain to the installation date of the ropeway.
May 15, 2000 to Present:
Any cable or rope installed on or near a ropeway that may represent a hazard to the ropeway shall be monitored to automatically stop the ropeway if the cable or rope fails. Failure would be defined as per Section 23.1 (g).
EXCEPTION: Track or haul ropes are excluded from this Rule.
Prior to May 15, 2000:
Not required
REPLACES ANSI FOR SPECIFIC TIMEFRAMES
Prior to Dec. 31, 1977:
A minimum clearance of 36 inches shall be maintained between the base of the tower and the vertical plane of the upward traveling cable. With respect to the downward traveling cable, a minimum clearance of 24 inches shall be provided between towing outfit in its normal position and the tower. This paragraph is not to be construed as preventing the authority having jurisdiction from requiring larger minimum clearances, at its discretion. A definite need for additional clearances arises when it is proposed to transport more than two skiers per towing outfit.
REPLACES ANSI FOR SPECIFIC TIMEFRAMES
Prior to Nov. 1, 1991:
The design of the tower structure and foundation shall be in accordance with the requirements of 5.1.1.6. Where guyed towers are used and guys intersect the ground within or near ski runs, the guys shall be marked for visibility.
Means shall be provided for ready access from the ground to all tower tops. Permanent ladders are required for heights above those accessible by portable ladders.
Portable ladders, if used, shall be in at least sufficient quantity to be available at each point where attendants are positioned. Portable ladders extending more than 20 feet (6.10 meters) shall not be used.
Towers shall be identified with successive numbers clearly visible to passengers.
Where towers are designed to permit variations in rope height, sheave unit supports shall be guided and attached so as to prevent misalignment by rotation
REPLACES ANSI FOR SPECIFIC TIMEFRAMES
April 15, 2019 to July 15, 2023:
All electrical systems shall comply with American National Standard, ANSI/NFPA 70-2017, National Electrical Code and the Institute of Electrical and Electronics Engineers, IEEE C2-2017, National Electrical Safety Code.
May 15, 2006 to April 15, 2019:
All electrical systems shall comply with American National Standard, ANSI/NFPA 70-2011, National Electrical Code and the Institute of Electrical and Electronics Engineers, IEEE C2-2007, National Electrical Safety Code.
May 15, 2000 to May 15, 2006:
All electrical systems shall comply with 5.2.1.1 Applicable codes of the B77.1-1999 ANSI Standard.
Jan. 1, 1994 to May 15, 2000:
All electrical systems shall comply with 5.2.1.1 Applicable codes of the B77.1-1992 ANSI Standard.
Nov. 1, 1991 to Jan 1, 1994:
All electrical systems shall comply with 5.2.1.1 Applicable codes of the B77.1-1990 ANSI Standard.
Jan. 1, 1984 to Nov 1, 1991:
All electrical systems shall comply with 5.2.1.1 Applicable codes of the B77.1-1982 ANSI Standard.
Jan 1, 1977 to Jan. 1, 1984:
All electrical work shall comply with 5.2.1.1 Applicable codes of the B77.1-1976 ANSI Standard.
Jan 1, 1974 to Jan. 1, 1977:
All electrical work shall comply with 5.2.1.1 Applicable codes of the B77.1-1973 ANSI Standard.
Jan 1, 1972 to Jan 1, 1974:
All electrical work shall comply with 5.2.1.1 Applicable codes of the B77.1-1970 ANSI Standard.
Prior to Jan 1, 1972:
All electrical work shall comply with 5.2.1.1 Applicable codes of the B77.1-1960 ANSI Standard.
April 15, 2019 to July 15, 2023:
All electrical power transmission wiring located near or proposed to cross over aerial lifts shall comply with 5.2.1.2 Location of the B77.1-2017 ANSI Standard.
May 15, 2006 to April 15, 2019:
All electrical power transmission wiring located near or proposed to cross over conveyors shall comply with the applicable requirements of IEEE C2-2007.
May 15, 2000 to May 15, 2006:
All electrical power transmission wiring located near or proposed to cross over aerial lifts shall comply with 5.2.1.2 Location of the B77.1-1999 ANSI Standard.
Jan. 1, 1994 to May 15, 2000:
All electrical power transmission wiring located near or proposed to cross over aerial lifts shall comply with 5.2.1.2 Location of the B77.1-1992 ANSI Standard.
Nov. 1, 1991 to Jan 1, 1994:
All electrical power transmission wiring located near or proposed to cross over aerial lifts shall comply with 5.2.1.2 Location of the B77.1-1990 ANSI Standard.
Jan. 1, 1984 to Nov 1, 1991:
All electrical power transmission wiring located near or proposed to cross over aerial lifts shall comply with 5.2.1.2 Location of the B77.1-1982 ANSI Standard.
Prior to Jan. 1, 1984:
All exposed electrical power transmission wiring shall be so located that in case of collapse or breakage of the power line it will not come into contact with carriers, ropes, or passengers.
REPLACES ANSI FOR SPECIFIC TIMEFRAMES
Prior to May 15, 2006:
Signal, communication, and control circuits may be supported between towers that support the aerial lift. Voltage on overhead or exposed circuits shall be limited to 50 volts with the exception of the intermittent ring-down circuits for telephone systems.
REPLACES ANSI FOR SPECIFIC TIMEFRAMES
Prior to May 15, 2006:
Not required.
REPLACES ANSI FOR SPECIFIC TIMEFRAMES
Prior to April 15, 2019:
Refer to R.5.2.2.
Prior to April 15, 2019:
Refer to R.5.2.2.1
REPLACES ANSI FOR SPECIFIC TIMEFRAMES
Prior to April 15, 2019:
Refer to R.5.2.3
Prior to May 15, 2006:
Not required.
Prior to April 15, 2019:
Refer to R.5.2.3.1
Prior to April 15, 2019:
Refer to R.5.2.3.2.
Prior to April 15, 2019:
Refer to R.5.2.3.3.
Prior to April 15, 2019:
Refer to R.5.2.3.4.
Prior to April 15, 2019:
Refer to R.5.2.5
REPLACES ANSI FOR SPECIFIC TIMEFRAMES
Prior to April 15, 2019:
Refer to R.5.2.3, R.5.2.4, or R.5.2.5 as applicable.
REPLACES ANSI FOR SPECIFIC TIMEFRAMES
Prior to May 15, 2006
The sign "Personnel Working on Lift - Do Not Start" or a similar warning sign shall be hung on the main disconnect switch or at control points for starting the power unit(s) when persons are working on the aerial lift.
Provision shall be incorporated in the ropeway design to render the system inoperable when necessary for the Lock-out Tag-out protection of personnel working on the aerial lift.
IN ADDITION TO ANSI 5.3.1.2 SIGNS
IN ADDITION TO ANSI 5.3.1
3 CCR 718-1-5