Standard Guide for Materials Handling Equipment for Hot Cells C1554-11

Presenter: Steven Shaw P.E.

Merrick & Company

SCOPE AND APPLICABILITY

• Material Handling Equipment used in hot cells/shielded facilities.

• DOES NOT apply to equipment used in commercial power reactors.

• IS NOT a substitute for applied engineering skills, proven practices and experience.

Scope and Applicability (cont.)

• CRANES • HOISTS • MECHANICAL MASTER

SLAVE MANIPULATORS • ELECTRO-MECHANICAL

MASTER SLAVE MANIPULATORS

• CARTS • BOGIES • SPECIAL EQUIPMENT

• Design • Fabrication • Installation • Maintenance • Repair • Replacement • Decontamination and • Decommissioning

REFERENCES AND DEFINITIONS

SIGNIFICANCE AND USE

• Guide intended as a supplement to other standards, codes and criteria.

• Guide intended to be generic.

• Identifies considerations and recommendations for material handling equipment used in high radiation, remote work environments (surface finish, tolerances, decontamination provisions).

QUALITY ASSURANCE

Recommends Quality Assurance Programs compliant with: • ASME NQA-1 • ISO 9001 • Any legal authorities

having jurisdiction.

GENERAL REQUIREMENTS

• Minimize equipment in the cell. • Design for collision avoidance and damage. • Equipment Installation sequences should be

considered in the design to prevent handling over and around other installed equipment.

MATERIALS OF CONSTRUCTION

• GENERAL CONSIDERATIONS • REFERENCE TO MATERIALS GUIDE IN ASTM

C1533 FOR MATERIALS WITH LIMITED RADIATION TOLERANCE.

EQUIPMENT: MANIPULATORS

Reliance on manipulators to bring about safe operating conditions is not recommended.

The standard addresses design considerations and recommendations for • Mechanical

Master Slave • Powered • Fixed Powered • Carriage

Mounted

EQUIPMENT: CRANES & HOISTS CONSIDERATIONS: • REVIEW ASME NOG-1 TO

DETERMINE DESIREABLE REQUIREMENTS.

• REMOTE CABLE CUTTERS FOR RECOVERY

• SEISMIC DESIGN REQUIREMENTS

• CELL AND CRANE DESIGN TO ALLOW VERTICAL LIFTS ONLY.

• MAINTENANCE PROVISIONS

CRANES AND HOISTS: DRIVES

MAINTAIN FRONT WHEEL DRIVE CONFIGURATION REGARDLESS OF CRANE TRAVEL DIRECTION RECOVERY PROVISIONS • REDUNDANTCY • ALTERNATIVE POWER SOURCES (PNEUMATIC,

HYDRAULIC ETC) TO RECOVER FROM SEVERED ELECTRICAL SERVICE

• TETHERED • ADDITIONAL CRANE SUITABLE FOR RECOVERY

CRANES & HOISTS: HYDRAULICS

• SHOULD BE MINIMIZED. • TYPICALLY REQUIRE ROUTINE OPERATION TO

MAINTAIN SEALS. • WELDED SYSTEMS • NON-FLAMMABLE/NON-HAZARDOUS FLUID • RADIATION RESISTANCE OF SEALS AND HOSES

SHOULD BE CONSIDERED. • CRITICALITY CONCERNS FOR HYDROGENOUS

FLUIDS.

CRANES & HOISTS: AXLES & WHEELS

• SHOULD ALLOW FOR SHAFT REPLACEMENT

• WHEEL/AXLE DISASSEMBLY SHOULD NOT REQUIRE THE USE OF A HYDRAULIC PRESS.

• HARDENED WHEEL TREADS • DIMENSIONAL TOLERANCES OF DRIVE

WHEELS CONTROLLED TO PREVENT CRABBING/BINDING.

CRANES & HOISTS: TRUCKS

• WHEELS SHOULD BE READILY ACCESSIBLE FOR MAINTENANCE, AND INCLUDE PROVSION FOR INDEPENDENT ALIGNMENT.

• JACK DOWN IDLER WHEELS, OR MULTIPLE WHEEL END TRUCKS TO ALLOW RECOVERY IN THE EVENT OF BEARING OR WHEEL FAILURE.

CRANES & HOISTS: TESTING PROOF TESTING • WHEN • HOW MUCH • METHODS • POST TEST INSPECTIONS OTHER CRANE TESTING • HOIST BRAKES • HOIST LIMIT DEVICES • TRAVEL LIMITS • OVERLOAD PROTECTION DEVICE

ELECTRICAL • WATERPROOF ENCLOSURES • BRUSHLESS MOTORS SHOULD BE

CONSIDERED (MAINTENANCE REDUCTION)

• CRANE WIRING SHOULD BE

TOTALLY ENCLOSED IN CONDUIT • WIRE INSULATION FUNCTIONAL TO

1 X 106 grays (1 x 108 rad).

• WIRING INSULATION SHOULD NOT RELEASE TOXIC OR CORROSIVE FUMES BELOW 230 °C.

• POWER SUPPLY AND CONTROLS (BUS BARS/FESTOONED CABLES, ETC) • WIRELESS CONTROL USING LEAKY COAX

CABLES. PROOF TESTING PRIOR TO ACCEPTANCE IS RECOMMENDED.

• RECOMMENDED VIEWING REQUIREMENTS

• RECOMMENDED LIGHTING REQUIREMENTS

• RECOMMENDED CAMERAS AND CAMERA FEATURES

• ELECTRICAL RECOMMENDATIONS WILL REQUIRE SOME CONVERSION FROM USA STANDARDS.

INSTALLATION STORAGE CONDITIONS CONTROLLED INSTALLATION CONDITIONS TO PREVENT DAMAGE FUNCTIONAL TESTING • MANUFACTURER’S

TEST • SITE TEST

CARTS & BOGIES

QUESTIONS?

Presenter: Steven Shaw, P.E.