. SAFETY GENERAL PRECAUTIONS necessary action. Even going close to high-voltage cables can cause electric shock, which may cause serious burns or even death. Always maintain a safe distance (see the table on the right) between the machine and the electric cable. Check with the local power company about safe operating procedure before starting operations. Wear rubber-soled shoes and rubber gloves for fear of an electric shock and be careful that any unprotected body part will never touch the machine. Use a signalman to give warning if the machine approaches too close to the electric cables. When carrying out operations near high voltage cables, do not let anyone near the machine.
Should the machine have got too close to an electric wire or come to contact with it, the operator must not leave the machine, but stay in the operator's platform, in order to avoid a risk of electric shock, until the electricity is switched off. Likewise do not allow anyone to come close to the machine.
Voltage of Cables Safety Distance 100 V - 200 V Over 2 m (7 ft) 6,600 V Over 2 m (7 ft) 22,000 V Over 3 m (10 ft) 66,000 V Over 4 m (14 ft) 154,000 V Over 5 m (17 ft) 187,000 V Over 6 m (20 ft) 275,000 V Over 7 m (23 ft) 500,000 V Over 11 m (36 ft) ENSURE GOOD VISIBILITY Check for any persons or obstacles in the area around the machine and check the conditions of the jobsite to ensure that operations and travel can be carried out safely. Always do as follows. When working in dark places, turn on the working lamp and front lamps installed to the machine, and set up additional lighting in the work area if necessary.
Stop operations if the visibility is poor, such as in mist, snow, rain, or dust. 2 - 20 WORKING ON LOOSE GROUND your machine too close to the edge of cliffs, overhangs, and deep ditches. The Avoid traveling or operating your mach o the groun d ma y be we ak in suc h area s. If th e grou nd should collapse u nder the weig ht or vibra tion of the m achine, there i s a h azard t hat the machine may f all or tip over . Remember th at the so il afte r heavy ra in or blasting or after earthquake s is we ak in thes e are as. When working on embankments o r near excavated d itches, t here is a hazar d that the weigh t and vibratio n of the machine wi ll caus e the s oil t o collapse.
Before starting operations, take ste ps to ensure th at the ground is safe and to prevent the machine from rolling over o r falling . DO NOT GO CLOSE TO HIGH-VOLTAGE CABLES Do not tr avel o r oper ate the machine near e lectric cables. There is a hazard of electric shoc k, w hich may c ause s eriou s i njury or property damage. O n jobsites where the m achine may go close to electric c able s, alwa ys do as f ollows . Before starting wo company of the w rk nea ork to r electric cables be performed, a , inform nd ask the l them ocal power to take the