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Vol. 2.6 © 2020 Hanbell Precise Machinery Co., Ltd. All rights reserved
4. Use high voltage insulation tapes to wrap both side of heat shrinkable tube to prevent
it from moisture (As figure 35 below)
。
Figure 5.11Heat-Shrink Tube Diagrammatic Sketch for Covering
5.3.7Protective measures of electric shock
To prevent electric shock accident, compressor operating under electrified condition or
electrified while shutting down, please follow the protective measure:
1.
Around electrified part should place mark of awareness like “HIGH-VOLTAGE,
DANGER”.
2.
Using railing and partition to prevent unconscious personnel get close to electrified
area. Barriers do not required to be locked, but need to be set and cannot be
moved unconsciously.
3.
Establishing protective fence surrounding the compressors and the units with 1.5m
safe distance to prevent direct contact of electrified device.
Suggestion:
1.
Regular setting of leakage protection should higher than 50mA, in humid region,
25mA will be more proper.
2.
Terminal connecting voltage should not larger than 50V, in humid region: 25V.
3.
Grounding resistance should not larger than 500Ohm.
4.
Air cut board (ACB) normally placed with leakage breaker; please refer to relative
operating setting.
5.
Once leakage breaker launched, please check if the insulation of every device and
wiring setting are correct, Please launch the system after check. Please contact
device supplier of there is any problems.
Note:
1.
Between motor casing and ground, resistance = 0
Ω
, potential difference = 0V.
2.
Between device casing and ground, resistance = 0
Ω
, potential difference = 0V.
3.
Between drive and device casing, resistance = 0
Ω
, potential difference = 0V.
Insulation Tape Sealing
Place
