Safe and Vault Services Flashcards

What is the UL Burglary Rating classification 'TL-15' for a safe?

Answer: The safe resists tool attack on the door for a net working time of 15 minutes using common mechanical and electrical tools

UL TL-15 (Tool-Resistant, 15 minutes) means the safe door resists penetration by common hand and power tools for a net working time of at least 15 minutes during UL testing.

What is a 'combination lock' manipulation in safe servicing?

Answer: Opening a combination lock by feeling or listening for the dial's internal mechanism to determine the combination without drilling

Manipulation is the technique of opening a combination lock by sensing mechanical feedback (feel, sound, or light) from the lock's components to determine each number of the combination.

Which type of safe lock uses electronic input (keypad) and a motorized bolt to control locking bolts?

Answer: Electronic safe lock (e.g., LaGard, Sargent & Greenleaf 6120)

Electronic safe locks use a keypad to accept a PIN, then drive a motorized cam or bolt to retract the lock's bolt work, allowing the door to open.

What is the purpose of a 'relocker' in a safe?

Answer: A secondary locking device that engages when the lock is attacked, making the safe harder to open even if the primary lock is defeated

A relocker is a secondary security device (glass or spring-loaded) that triggers and locks the bolt work if the safe is attacked, preventing opening even if the primary lock is destroyed.

What UL Group rating designates the highest security level for a dial combination lock used on safes?

Answer: Group 1R (manipulation-resistant)

UL Group 1R is the highest manipulation-resistance rating, requiring that the lock withstand at least 20 man-hours of expert manipulation attempts.

What is a 'borescope' used for in safe opening?

Answer: A flexible optical instrument inserted through a drilled hole to view the lock mechanism's wheel positions to determine the combination

A borescope is inserted through a small drilled hole to visually inspect the safe lock's internal components and determine wheel positions, enabling the safe to be opened without full disassembly.