Wieland Electric Ltd
Modular Wiring Wieland Modular Wiring Specifications BS61535
Typical Modular Wiring Specification:
Armoured & Unarmoured Systems
General:
The contractor shall install a modular wiring
system for distribution of lighting and power within the ceiling
void. System: Armoured
The modular wiring system generally comprises of
cable assemblies and steel enclosures. All internal wiring generally
will be 2.5mm˛ and 4.0mm˛ LSOH singles (6491B). The modular wiring
system generally is rated 230V/16A or 20A. The modular wiring system
offers a high degree of mechanical protection through the use of
steel enclosures and cable assemblies comprising metal flexible
conduit and die-cast connector housings.
System: Unarmoured
The modular wiring system shall comprise of LSOH
flexible cable assemblies, steel enclosures (MDBs) and polyamide
enclosures. The modular wiring system is rated at 230V/16A.
Connector System:
The connector system used throughout the entire
modular wiring system shall incorporate a connector system
manufactured and tested in accordance with BS 61535 - Installation
Couplers Intended for Permanent Connection. Connectors shall be 3,
4, 5 or 6 pole type and have fully shrouded female (live) pins.
System Components:
The principal components of the modular wiring
system shall be as follows:
Home Run Cables:
Home run cables generally comprise of LSOH SWA
2.5mm˛ multicore type up to 4.0mm˛ & 6.0mm˛ LSOH singles (number
dependant on number of circuits) in metal flexible conduit (up to
40mm diameter) complete with gland and lock-nut. If the modular
wiring system is to be integrated with a lighting control system the
home run cable will generally comprise of a Belden type 8719
fieldbus cable. Main Distribution Boxes (MDBs):
MDBs generally comprise of a solid steel
enclosure with a removable lid and provision for earthing. Output
ports shall be positioned around perimeter of the MDB. The MDB shall
incorporate a suitably sized DIN rail mounted terminal for
connection of the home run cable and internal wiring to the output
ports. Cable Assemblies: Armoured
Cable assemblies generally comprise up to 4.0mm˛
LSOH singles in a metal flexible conduit (16 mm diameter) and
pre-wired male and/or female connector and/or gland and lock-nut.
Cable Assemblies: Unarmoured
Cable assemblies generally comprise LSOH
multicore flexible cable and pre-wired male and/or female
connectors. T Connector: Armoured
The T connector generally comprise of die-cast
connector housings, male and female connectors (6 pole) and tails or
flexible drop lead for connection to luminaires/lighting control
module (LCM)/fan coil unit (FCU)/variable air volume unit (VAV).
T Connector: Unarmoured
T Connectors generally comprise of polyamide
connector housings, male and female “snap-fit” connectors (3, 4 5 or
6 pole) and tails or flexible drop lead for connection to luminaire/lighting
control module (LCM)/fan coil unit (FCU)/variable air volume unit (VAV).
Switch Connector: Armoured
Switch connectors generally comprise of die-cast
connector housings, male and female connectors and pre-wired
flexible switch drop or facility for plug-in switch lead.
Switch Connector: Unarmoured
Switch connectors generally comprise of polyamide
connector housings, male and female connectors (3, 4, 5 or 6 pole)
and pre-wired flexible switch drop or facility for plug-in switch
lead. Fused Connection Unit (FCU):
Fused connection units (for connection to
fan-coils or similar loads) shall comprise of a steel enclosure with
removable lid, a suitably rated switch and fuse (or combined) and
suitable provision for earthing.
RST Specification IP66/IP68
Temperature Range: - 40°C to + 100°C
Material: Contact parts: brass. Surface-plated housing parts:
thermoplastic material PA 66, halogen- free, V2 sealing material:
NBR. Regulations: DIN VDE 0606 T200, DIN
EN61984 (VDE 627), VDE 0110 IEC 60999: UL 2238: CSA: C22.2 No.
182.2-M1987 LR Type Approval System. Approvals:
Pending
VDE; UL; CSA; LR; GL; DNV. Degree of
Protection: IP 65, IP66, IP67 and IP 68 (3m; 2 hours).
Glow-wire Test 850°C, 30s: For
connectors, distribution units, cable assemblies and appliance
couplers. Coding: Mechanical coding
symbolised by colour code. Grey and black with the
same mechanical coding. Other codings are optional.
Note: Protection against shock generally guaranteed even when
disconnected. Protective conductor leading.
Connection to the live cable must be with a female connector
according to the regulations. It is therefore not possible to have a
ring circuit arrangement. Only pluggable in the
correct pole configuration: 1 pole cannot be connected.
Contacts protected against strain on the cable. All components can
be interlocked. DIN VDE 0606-200 requires the use
of a locking device. Dangerous mismating with installation connector
systems of other suppliers is not automatically excluded by
compliance with DIN VDE 0606 T200. Installation
connectors do not replace national connector/outlet systems for home
applications.
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