Philips Xtreme Surge Protector I User manual

Design-in Guide
Protect your outdoor
luminaires against damaging
spikes and transients
April 2019
Outdoor SPD
Xtreme Surge
Protector I

3
Contents
Introduction to this guide 4
Information or support 4
Attention point 4
Xtreme Surge Protector 5
Types of surge protection devices 5
Compatibility with other products 5
Surge protection as solution 7
Mechanical design 8
Casing 8
Installation 8
CAD drawings 8
SPD connections 8
Failure indicator 8
9
9
10
10
11
11
12
12
Electrical design
Protection levels
Wiring
Insulation Class I and Class II luminaires
Incorrect wiring
Fusing and mains power distribution system
Quality / Testing
Compliance testing during luminaire release and
manufacturing
Sustainability
System disposal
12
12

4
Introduction to this guide
Thank you for choosing the Philips Xtreme Surge
Protector I.This product will help protect your
Outdoor luminaires against destructive spikes and
transients, including high voltage and high current
surges caused by indirect lightning strikes. This
Design-in Guide provides instructions on how to
install the Xtreme Surge Protector in your luminaire.
Information or support
If you require any further information or support
please consult your local Philips office or visit:
Support
www.philips.com/support
Xitanium drivers
www.philips.com/xitanium
OEM general info
www.philips.com/technology
Attention point
•Do not use damaged or defective contacts or
housings.
• Do not use damaged products.
•Do not service the Xtreme Surge Protector when
the mains voltage is connected.
•The luminaire manufacturer is responsible for its
own luminaire design, this has to comply with all
relevant safety standards.
•The Xtreme Surge Protector I is intended for built-
in use and should not be exposed to the elements
such as snow, water and ice. It is the luminaire
manufacturer’s responsibility to prevent exposure.
Design-in support is available; please contact your
Philips sales representative.
Warning:
• Before installation or maintenance, switch off the
power
• Avoid touching live parts

5
Xtreme Surge Protector
The Philips Xtreme Surge Protector I is designed
exclusively for use in insulation Class I outdoor
luminaires.
Types of surge protection devices
The International Electrotechnical Commission (IEC)
standard IEC/EN61643-11:2011 recognizes three types
of surge protection devices.
Type 1
• Type 1 is recommended in specifically for service-
sector and industrial buildings.
• The device is protected by a lightning protection
system or a mesh cage. It protects electrical
installations against quasi-direct lightning strikes.
• Type 1 is characterized by a 10/350 µs current
wave.
Type 2
• Type 2 is a common protection system for all
low-voltage electrical installations. Installed in an
electrical switchboard, this device prevents the
spread of spikes and transients in electrical
installations and protects the loads.
• Type 2 is characterized by an 8/20 µs current
wave.
Type 3
• Type 3 is characterized by a combination of
voltage waves (1.2/50 µs) and current waves
(8/20 µs) and is intended mainly for local
protection of sensitive equipment.
The Philips Xtreme Surge Protector I is classified as a
Type 3 product.
Compatibility with other products
The Philips Xtreme Surge Protector can be used in
combination with various electronic control gears for
different lamp types (e.g. LED, HID and fluorescent
lamps). It adds additional surge protection to a gear
which has its own built-in surge protection.
In this design-in guide the focus will be only on LED
applications.
Philips Xtreme Surge Protector I

6
Challenge for Outdoor lighting
Outdoor luminaires are used in various types of
applications, such as street and road lighting, parking
areas and tunnels. In many of these installations
there is a risk of extreme surges (e.g. those caused by
lightning strikes).
A direct hit will most likely destroy the electrical
components in a luminaire. Even an indirect hit near
the lighting installation might cause severe damage.
Charge is built up between the cloud and earth, until
the potential difference between cloud and earth is
high enough to initiate a lightning strike. Following
the strike, the charge on the luminaire is returned
from the luminaire via line & neutral back to the
cloud (red line) since current always flows in a closed
loop back to its origin.
A voltage between the L and N terminals of the driver
(differential mode) as well as between the driver
terminals and the luminaire (common mode) is being
built up and an electrical breakdown between mains
wiring and the luminaire will occur.
The resulting surge voltage and surge current of this
electrical breakdown can reach critical levels which
can destroy the driver and/or LED module. The path
of the surge current can go through the LED module
and the driver (shown in the red line) or through the
driver only as shown in third figure on the left.
Alternatively, in a TT distribution system where an
insulation Class I luminaire is applied, a lightning
strike at some distance may cause high common
mode energy surge on the mains lines where the
local earth connection forms the return path. In that
situation, a high common mode voltage will stress
the driver and LED module.
Charge build-up
Large currents caused by indirect lightning hit
Surge currents damage to the luminaire
XX kV
XX kV
LED Outdoor Power
Supply

7
Surge protection as solution
A reliable way to increase the outdoor luminaire
protection against excessive surges is to use the
Philips Xtreme Surge Protector.
The Xtreme SPD will limit the differential and
common mode surge voltage build-up inside the
luminaire while at the same time offering a diversion
path with a lower breakdown voltage. The energy of
the voltage surge is returned as a surge current, via
the Xtreme SPD, to ground and eventually back to
the cloud. As such, it will protect both the driver and
LED module against damaging surge stress. See
figure on the left.
The Xtreme SPD has to be connected to the
protective earth connection of the luminaire.
Please refer to Electrical design for more
information.
10 kV
2.5 kV
LED Outdoor Power
Supply
Surge Protection
Device
Surge currents are diverted from the LED module and
driver via the Surge Protector, protecting the luminaire

8
Casing
The Philips Xtreme Surge Protector I is suitable for
use in all outdoor Insulation Class I luminaires.
Thermally protected Voltage Dependent Resistors
(VDR) and surge arresters are used internally for
surge protection. The design assures good thermal
stability of the Xtreme SPD over lifetime and a low
case temperature even if the device is used beyond
its end of life.
The Xtreme SPD has been tested for thermal stability
and is compliant with standards IEC/EN61643-11.
Installation
The Xtreme SPD is released as a built-in device and
is intended for mounting inside a luminaire. Remote
mounting of the Xtreme SPD such as in a pole or
switching cabinet is not recommended sinceit may
reduce its surge protection effectiveness and it may
be subject to ingress of water and dirt.
On the label you will find an arrow indicating the
mounting position of the product. It is important to
mount the device with the connection terminals
facing downward to prevent any damage resulting
from water entering the product.
CAD drawings
3D CAD drawings are available on
www.philips.com/technology or available
via your local sales representative.
SPD connections
The Xtreme Surge Protector is equipped with push-in
connectors and will accept both solid-core and
stranded wires. For more wiring details please check
the datasheet.
The SPD should be connected as illustrated on the
left in order to achieve optimal surge protection.
Failure indicator
The Xtreme SPD is equipped with an optical failure
indicator by means of a green indicator light. If mains
voltage is applied and the indicator light is off then
the Xtreme SPD needs to be replaced.
Mechanical design
TOP
Mounting direction
TOP
Correct Not correct
Recommended SPD connection
L
N
PE
L
N
EQUI
Surge
Protector
Driver
LED MODULE
Luminaire chassis + LED module heatsink

9
Electrical design
Protection levels
The illustrations on the left show the clamped
1.2/50 µs surge voltage differential mode and
common mode waveforms and its protection levels
Upas function of clamped 8/20 µs surge current Ic.
The corresponding voltage protection levels Upas
function of clamped surge current Ic can be found in
the datasheet.
The initial common mode clamping voltage U1has an
extreme short duration (approx. 100 ns) and will be
completely absorbed by the driver; it will not result
in significant surge stress to the connected LED
module and can be ignored.
Warning:
• Before installation or maintenance, switch off the
power
• Avoid touching live parts
Protection level Up
Protection level Up
u2
t2
u1
u2
t1
t2
Differential mode L-N
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10
Wiring
Achieving the specified protection levels on page 10
is possible if:
• incoming mains wires are routed first to the
Xtreme SPD and from there on to the driver input.
• mains wires between the Xtreme SPD and driver
are kept as short as possible.
• ground wire between the Xtreme SPD and the
luminaire housing / LED module heatsink is kept
as short as possible.
It is therefore not recommended to remotely mount
the Xtreme SPD such as in a pole or remote
distribution box. In cases remote mounting is the
only option, it is necessary to perform additional
measurements in the luminaire to define the
maximum achievable protection levels.
When connecting the Xtreme SPD, it is strongly
advised to adhere to the following EMC guidelines:
• keep all wires short
• keep wiring loop areas small
• ensure that mains wires are kept separate from
low-voltage signal circuit wires.
Respecting these rules, will minimize the distance
and wire length between the Xtreme SPD and the
mains voltage entry point.
Insulation Class I and Class II luminaires
The main differences between an insulation Class I
and insulation Class II luminaire are about its failsafe
construction with respect to electrical safety.
In a Class I luminaire, electrical safety is achieved by
a combination of basic insulation between live parts
and accessible parts and establishing a protective
earth connection (PE) to accessible parts (luminaire
housing). Luminaire insulation strength is based on
basic system insulation requirements.
A Class II luminaire does not have a protective earth.
In this case, electrical safety is achieved by providing
double or reinforced insulation which are subject to
elevated insulation strength requirements.
Per IEC60598-1: 2014 paragraph 4.10.4 the double or
reinforced insulation in a (Class II) luminaire between
live and accessible parts is allowed to be bridged
only by a resistor and/or capacitor. By design, the
Xtreme Surge Protector I does not meet this
requirement.
Therefore, the Xtreme Surge Protector I is not
suitable for design-in in an Insulation Class II
luminaire.
Wiring in an insulation Class I luminaire
For optimal protection against surges the SPD should
be connected in the luminaire as shown below.
Correct wiring in an insulation. Class I luminaire
Xtreme
Surge
Protector
1OLC
LED driver
EQUI
Basic insulated module

11
Incorrect wiring
If the Xtreme SPD is not wired correctly then it will
not be able to protect up to the specified protection
levels and damage to the luminaire may result.
Examples of incorrect wiring include:
• Installing unprotected wires (wires which are not
routed through the Xtreme Surge Protector) in
parallel with the protected output wires of the
driver
• Crossing of mains and output wires, mains and
output wires bundled together.
• Crossing of unprotected and protected wires
• Not connecting the input and output wires as a
star point to the SPD
• Unnecessary long wiring between the SPD and
the driver.
• Unnecessary long ground wiring between the
SPD and protective earth or luminaire chassis.
Fusing and mains power distribution system
Standard outdoor applications require fusing to
protect the installation. Fusing above 20 A is not
allowed when applying the Xtreme SPD. Lower fusing
values are allowed but may require shorter fusing
servicing intervals since lower fusing values can
handle less surge events before tripping.
The SPD has an extremely low power consumption
and does not impact the inrush current so luminaire
fusing is not affected by the Xtreme SPD.
In a TN mains power distribution system the neutral
conductor (N) is connected to the earthed star point
of a distribution transformer and is either connected
to the star point via a separate conductor (TN-S) or it
is (partly) combined with the protective earth
conductor (TN-C, TN- C-S). The Protective Earth (PE)
wire is also connected to the same star point and
part of the distribution wiring to the end user.
In a TT mains power distribution system, the PE
conductor is not part of the distribution wiring to the
end user. Protective earth is locally sourced at the
end user by means of an earth pin.
In an IT mains power distribution system, the star
point of the distribution transformer is isolated from
earth. The N and PE conductors are not wired to the
end user. The end user has to source a local earth
conductor if needed.
Insulation
class
Application field
TN TNC TNS TNCS TT IT
Class I ✓✓✓✓✓✓
L
N
V in V out
Outdoor power supply
SPD
SPD
L
L
N
N
V in V out
Outdoor power supply
L
N
V in V out
Outdoor power supply
SPD
L
N
V in V out
Outdoor power supply
SPD
The Xtreme Surge Protector I is released for these distribution systems
Example of Incorrect wiring
Example of Incorrect wiring
Example of Incorrect wiring
Example of Incorrect wiring