The AEGCP on construction sites must cover: Work on circuits with voltages less than __ volts may be performed in an energized state if there is no exposure to electrical burns or explosion risks due to arcs. When may a crane or derrick be used to hoist workers on a personnel platform? It is April 26, and as Rita gathers her power tool flexible cords to begin the day, she notices the inspector's tape is white. When the rated load varies with the boom radius, the crane or derrick shall be fitted with a boom angle or radius indicator visible to the operator. The following inspections are required of all equipment: In addition, the following special inspections are required in particular circumstances: A competent person must visually inspect the equipment each shift the equipment is used. for derricks, gudgeon pins for cracks, wear, and distortion, and foundation supports for continued ability to sustain the imposed loads. For the engineer to carry out his duties effectively, he should be an integral part of the inspection company and not simply retained to sign off field reports. braking system, load-sustaining structural components, load hook, or in-use operating mechanism) or capacity must be inspected by a qualified person, prior to initial use. A person undertaking this unit must hold: When hoisting a personnel platform, which of the following need NOT be engaged when the occupied platform is in a stationary position? According to statistics, what is the most common electricity-related direct injury? a. be monitored during monthly inspections Reciprocating saws, must be equipped with a ___ ___ "off" switch and may have a lock-on provided that they can be turned off by a single motion of the same finger that turned them on. ... An examination must be carried out in conjunction with each unit proof load test and annually thereafter. The need for electrical safety awareness is demonstrated by the fact that out of every 100 young workers who die on the job, _____ are killed by electricity. Only Approved Crane Contractors (ACC) are to install, alter, dismantle and repair tower crane. Select the best answer, even if more than one answer seems possible. Which one of the fall arrest systems must limit a worker from free falling two feet? Start by looking for any major damage, including checking all the components. sloping, shoring, benching, and trench shield systems. 3.1 In the case of variable load-radius cranes, the tests are generally to be carried out Frequent inspection including visual and operational checks of many items on a hoist and crane must be performed weekly to monthly, by a designated individual. b. If you have crane equipment that has been repaired or adjusted to ensure safe operation it must be inspected by a _____ prior to initial use. When may a crane or derrick be used to hoist workers on a personnel platform? The workers most often exposed to lead on the job include all of the following EXCEPT: Four basic lifting principles that govern a crane's mobility and safety, The point in the object around which its weight is evenly distributed. chains and chain drive sprockets for excessive wear of sprockets and excessive chain stretch; travel steering, brakes, and locking devices, for proper operation. should not use foot powder or wear socks made of silk, wool, or nylon with conductive shoes. The inspection must assure the modifications or additions have been made in accord with the approval and must wool, silk, and nylon produce static electricity. An arc flash, and its resulting release of energy, can only occur if an arc between two differences of potential occurs. The minimum clearance between a crane and any power line rated at 50 kV or below must be 10 feet. Each shift, a competent Person must visually inspect the crane. This system is most effective when it is attached above the employee's head. Derrick (ASME B30.6) LOAD TEST PROTOCOL & APPROVAL Any structural changes necessitated by the change in rating must be carried out. If it shows an operational All the required maintenance, the appropriate inspections, and the testing of each crane and all its various parts, should be carried out 5. Cranes must be uniformly level within _____ percent of level grade and located on firm footing. To ensure that crane equipment is in a safe condition, the crane standard requires a variety of inspections. control mechanisms for maladjustments interfering with proper operation, control and drive mechanisms for apparent excessive wear of components and contamination by lubricants, water or other foreign matter. This section applies to every kind of crane and derrick and to any other type of equipment performing the functions of a crane or derrick except as noted in ... Any structural changes necessitated by the change in rating shall be carried out. A difference of potential (voltage reading) exists between any two phase conductors, or any phase conductor and a grounded part (grounded systems only). name and signature of the person who conducted the inspection and the date. Derrick crane means a slewing strut-boom crane with its boom pivoted at the base of a mast that is: capable of luffing under load; guyed (guy-derrick) or held by backstays (stiff-legged derrick). The heat produced by an arc flash is ___ times hotter than the surface of the sun. This horizontal system serves as a connection point for other components of PFAS total system and must be capable of locking in both directions. Does a competent person or a qualified person need to inspect repaired equipment prior to use? The top-rails of guardrails must be capable of withstanding _____ pounds of force applied at any point, from any direction? any, who contracts to carry out, or who carries out, any works; or (c) any other person having for the time being the command or charge of any works being carried out on, to or by means of a local vessel. 1917.45(c) ... the cab and any portion of the superstructure which employees must reach. c. be returned to the manufacturer for servicing Note: Under Standard 1434, any such modification/addition must be If so, the equipment must not be used until the deficiency is corrected. Course Layout If you’ve recently had a crane installed at your workplace, you may not yet be an expert on the reasons why it needs to go through inspection, how often it needs to happen, and who is qualified to perform the inspection. Which of the following inspections is NOT required of all equipment? In relation to a substantial alteration, modification or repair of a derrick crane, it includes the boom, The new regulations on crane inspections now requires that mobile and tower cranes require daily, monthly and annual inspections. Inspect the mast for loose or dislodged bolts. When does electricity become hazardous to humans? This unit applies to the activities of a person operating a derrick crane. be required for the current operation and . ... Each crane and derrick must be tested and examined as a unit annually. A pump jack scaffold must be fitted with two ___ gripping mechanisms to prevent slippage. 4. A/D director. b. competent person systems and components that require manipulation by employees to make them effective in providing protection. Have a three-wire cord plugged into a grounded receptacle. For a tower crane, including a self-erecting tower crane, and a derrick, the application must be accompanied by procedures for the pre-operational test: 1. b. be taken out of service until the deficiency is corrected Survey and Inspection AREA1 : Derrick/Mast and Traveling Equipment. If a qualified person determines a component is damaged or worn to the extent it would create a safety hazard if used on the crane, the component must not be erected on the crane. When the worksite cannot be accessed in any other way. Blade guards for both radial and circular table saws must automatically: In addition to the physical safeguards on all machinery, what else must an effective safeguarding system include? According to the Bureau of Labor Statistics (BLS), ___ out of every five workers injured at the workplace were not wearing eye protection at the time of their accident. The top edge of a guardrail must not deflect more than three inches when ___ pounds is applied in a downward direction. one. taken out of service until the deficiency is corrected. Equipment with a repair or adjustment to ensure safe operation (adjustment to a safety device or operator aid, critical part of a control system, power plant, braking system,