Bull Cedoc Bull Escala 2104 TS4, Руководство по установке

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CAUTION:
This product is equipped with a 3-wire power cable and plug for the user’s
safety. Use this power cable in conjunction with a correctly grounded
electrical outlet to avoid an electrical shock. (13)
Checking mainline electrical power outlets
If you are qualified technically, and have the necessary equipment, you should
perform the following safety check on each mainline electrical power outlet.
CAUTION:
Do not touch the power outlet or the power outlet face plate with anything
other than test probes before you complete this safety check. (14)
1. Find and switch off the branch circuit circuit breaker (CB).
Note: All measurements are to be made with the power outlet face plate in its
normal installed position.
2. Some power outlets are enclosed in metal housings. When making voltage
measurements on power outlets of this type, perform the following steps:
a. Check for less than 1 volt from the power outlet case to any grounded metal
structure in the building, such as a raised floor metal structure, water pipe,
building steel, or similar structure.
b. Check for less than 1 volt from the power outlet ground pin to a grounded
point in the building.
Note: If the power outlet case or face plate is painted, ensure that the
probe tip penetrates the paint and makes good electrical contact with
the metal.
c. Check the resistance from the ground pin of the power outlet to the power
outlet case. Check the resistance from the ground pin to the building ground.
The reading should be less than 1.0 ohm. This reading indicates the
presence of a continuous grounding conductor.
3. If any of the three checks made in step 2 is not correct, remove the power from
the branch circuit and make the necessary corrections to the wiring; then
recheck the power outlet.
Note: Do not use a digital multimeter to measure grounding resistance.
4. Check for infinite resistance between the ground pin of the power outlet and
each of the phase pins. This check is for a wiring short circuit to ground or a
wiring reversal.
CAUTION:
If the reading is not infinity, do not proceed. Make the necessary
corrections to the wiring before you continue. Do not switch on the
branch circuit CB until you satisfactorily complete the previous steps. (15)
5. Check for infinite resistance between phase pins. This check is for a wiring
short circuit.
6. Switch on the branch circuit CB. Measure for the appropriate voltages between
phases. If no voltage is present on the power-outlet case or grounded pin, the
power outlet is safe to touch.
7. With an appropriate meter, verify that the voltage at the power outlet is correct.
8. Verify that the grounding impedance is correct by using an
appropriately-approved ground impedance tester.
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2104 Model TS4 Installation Guide