Delta M250HV, Инструкции по установке и вводу в эксплуатацию

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26 Installation manual M250HV_112 (RPI254M112000) Product Version 0 EU V1.0 EN 2022-04-11
Select and calculate the AC cable
Technical properties of the AC terminal block
Connection type
M12 bolts; matching nuts,
spring washers and washers
are ready-fitted.
Rated current I
N
96 A
Rated voltage U
N
1000 V
AC cable specifications
Min./max. cable diameter
4-core cables 33.0 to 77.0 mm
Min./max. Conductor cross-section for copper cable
●
Multi-wire cable 95 to 300 mm 2
●
Flexible cable 95 to 300 mm 2
Min./max. Wire cross-section for aluminum cable
●
round, single-wire (rs) 120 to 300 mm 2
●
round, multi-wire (rm) 120 to 300 mm 2
●
sector-shaped (ss) 120 to 300 mm 2
Notes on calculating the cable cross-section
►
Consider the following factors when calculating the
cable cross-section:
– Cable material
– Temperature conditions
– Cable length
– Installation type
– Voltage drop
– Loss of power in the cable
►
Always follow the IEC 60364-5-52 requirements and
your country-specific installation instructions.
►
France: Follow the installation instructions of UTE 15-
712-1. This standard contains the requirements for
minimum cable diameters and for avoiding overheat-
ing due to high currents.
►
Germany: Follow the installation instructions of
VDE 0100-712. This standard contains the require-
ments for minimum cable diameters and for avoiding
overheating due to high currents.
Specification for wire-end ferrules for the AC cable
Wire-end ferrules must be used to connect the conductors
of the AC cable to the AC terminal block.
Always follow the cable lug manufacturer's
installation instructions.
Conductor material
Wire-end ferrule material
Copper
Copper
Tin-plated copper
Aluminum
Tin-plated aluminum
Aluminum-on-copper bimetallic
Instructions on handling aluminum conductors during
installation work
The special properties of aluminum must be taken into
consideration when using aluminum conductors:
● Aluminum "flows," i.e. it gives way under pressure.
●
During stripping, a thin non-conductive oxide layer
forms within a few minutes, which increases the con-
tact resistance between the conductor and clamping
point.
● The specific conductivity and hence the current carry
-
ing capacity is approximately one third less than that
of copper.
NOTICE
To ensure a safe and reliable contact with
aluminum conductors,
always perform the
following work steps:
►
Keep the installation location as free
as possible from moisture or corrosive
atmospheres.
►
Connect the aluminum cables quickly.
►
Clean the stripped end of the aluminum
conductor mechanically (for example,
using a knife blade to scrape off the
oxide layer), then immediately dip the
aluminum conductor into acid-fee and
alkaline-free (= neutral) Vaseline and
straight away insert it into the Al-Cu
compression joint.
Connecting the grid