(12.03.18) OW_P16_P20_BA_831060202_03_EN
orbitalum tools
GmbH, D-78224 Singen, www.orbitalum.com, Tel. +49 (0) 77 31 792-0
19
P16, P16 AVC, P20
| Operating instructions
General safety rules
6. GENERAL SAFETY RULES
These rules apply to AC and DC welding generators, AC transformers, AC/DC welding machines and DC transformer
welding rectifiers.
In arc welding operations, where electrically charged parts are exposed, the following rules should be observed to
assure maximum safety and protection to operator and surroundings.
Failure to observe these safety precautions may expose, not only the operator himself, but also fellow workers, to
serious injuries. Once these rule are studied and well kept in mind, proceed, in any case with maximum care.
Welding cables
WARNING
DO NOT overload cables.
WARNING
DO NOT use welding cables at excessive current rates compared to their capacity.
It will cause overheating and rapid deterioration of their insulation. It is certainly uneconomical.
WARNING
DO NOT use worn-out or poorly connected cables.
WARNING
INSPECT cables frequently. Repair immediately all breaks in insulation with rubber and friction tapes.
Tighten and adequately insulate all cable connections. It is dangerous when exposed sections of
cable come in contact with grounded metallic objects causing an arc. Unprotected eyes may be
injured and fire may result if combustible materials such as oil or grease are in the vicinity.
Polarity switch
WARNING
Do NOT operate the polarity switch under load.
The polarity switch, when supplied, is provided for changing the electrode lead mutually from positive to negative.
Operate this switch only while the machine is not in use and the welding circuit is open. Potential dangers of opening
the circuit while charged with current are the following:
• An arc could form between contact surfaces of the switch.
• The person using the switch may receive a severe burn from this arc.
Ground power circuit
WARNING
DO NOT use welding machine without grounding frame of case.
WARNING
GROUND every power circuit to prevent accidental shock by stray current.
DO NOT ground to pipelines carrying gas or inflammable liquids and lines carrying electrical conductors.
ATTENTION
BE SURE that conductors can safely carry the ground current.
