| Guide
to Low Voltage Panel Separation |
 |
Introduction
When installing our custom industrial
control systems, EN60439-1 makes reference to the
'Internal separation of ASSEMBLIES by barriers, or partitions', under
Clause 7.7
This clause concerns methods of
separating busbars, and 'functional units', from one another. This may
be achieved either by fitting barriers between the units or by mounting
them in separate compartments.
Click a form of separation for the guide
classifications:
| Form
1 |
No
separation. |
| Form
2a |
Separation
of the busbars from the functional units, with terminals
for external conductors not separated from the busbars. |
| Form
2b |
Separation
of the busbars from the functional units, with terminals
for external conductors separated from the busbars. |
| Form
3a |
Separation
of busbars from the functional units, and separation of
all functional units from one another. Separation of the
terminals, for external conductors, from the functional
units, but not from each other. Terminals for external
conductors not separated from busbars |
| Form
3b |
Separation
of busbars from the functional units, and separation of
all functional units from one another. Separation of the
terminals, for external conductors, from the functional
units, but not from each other. Terminals for external
conductors separated from busbars. |
| Form
4 |
Separation
of busbars from the functional units, and separation of
all functional units from one another, including the
terminals for external conductors which are an integral
part of the functional unit. |
| Type
1 |
Terminals
for external conductors located in the same compartment as
the associated functional unit. Busbar separation is
achieved by insulated coverings, eg. Sleeving, wrapping or
coatings. Cables may be glanded elsewhere. |
| Type
2 |
Terminals
for external conductors located in the same compartment as
the associated functional unit. Busbar separation is
achieved by metallic, or non-metallic, rigid barriers, or
partitions. Cables may be glanded elsewhere. |
| Type
3 |
Terminals
for external conductors located in the same compartment as
the associated functional unit. Busbar separation is
achieved by insulated coverings, eg. Sleeving, wrapping,
or coatings. The termination for each functional unit has
its own integral glanding facility. |
| Type
4 |
Terminals
for external conductors located in the same compartment as
the associated functional unit, but in individual,
separate, enclosed protected spaces, or compartments.
Busbar separation is achieved by insulated coverings, eg.
Sleeving, wrapping or coatings. Cables may be glanded
elsewhere. |
| Type
5 |
Terminals
for external conductors located in the same compartment as
the associated functional unit, but in individual,
separate, enclosed protected spaces, or compartments.
Busbar separation is achieved by metallic, or
non-metallic, rigid barriers, or partitions. Terminals may
be separated by insulated coverings, and glanded in common
cabling chambers. |
| Type
6 |
Terminals
for external conductors located in the same compartment as
the associated functional unit, but in individual,
separate, enclosed protected spaces, or compartments. All
separation is by metallic or non-metallic, rigid barriers,
or partitions. Cables are glanded in common cabling
chamber. |
| Type
7 |
Terminals
for external conductors located in the same compartment as
the associated functional unit, but in individual
separate, enclosed protected spaces, or compartments. All
separation is by metallic, or non-metallic, rigid
barriers, or partitions. The termination for each
functional unit has its own integral glanding facility. |
|
Note: These forms of separation
are not relevant to arc fault containment which is not the subject of
this specification, and would be subject to agreement between the
manufacturer, and the client.
|
If you would like more information on
Sandford Electrical custom industrial control systems products
and services please call 01628 668 808 or contact
us. |
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