Unacceptable for Display
Acceptable
for Display Only (but not operated)
- Projects with unshielded belts, pulleys, chains, and moving parts with tension or pinch points
- Class III and IV lasers
- Devices which emit loud noises
- Devices which require more than 110v
Acceptable for Display & Operation
With Restrictions
- Class II lasers
- Must be student operated
- Posted sign must read “Laser radiation: Do Not Stare into Beam”
- Must have protective housing that prevents access to beam
- Must be disconnected when not operating
- Large vacuum tubes or dangerous ray-generating devices must be shielded
- properly Mechanical devices with moving parts must have adequate safeguards.
- Any apparatus producing temperatures that will cause physical burns must be adequately insulated.
- High-voltage equipment must be shielded with a grounded metal box or cage to prevent accidental contact.
- High-voltage wiring, switches, and metal parts must have adequate insulation and overload safety factors, and must be inaccessible to others.
- Electric circuits for 110-volt AC must have a grounded 9-ft. (minimum) cord. The cord must have sufficient load-carrying capacity and be approved by underwriters Laboratories.
- Electrical connections in 110-volt circuits must be soldered or made with approved connectors. Connecting wires must be insulated.
- Bare wire and exposed knife switches may be used only in circuits of 12 volts or less; otherwise, standard enclosed switches are required.
Size:
Project Space Limitations are 76 cm (30 in) deep; 122 cm (48 in) wide;
274 cm (108 in) high including table; tables are 76 cm high. Heavy displays
should be floor mounted when possible
