Osram HQI-E 150 W/NDL CL Technical Information download pdf (Page 42)

42

If an ENE

C

mark is issued for a product b

y

a certifica

-

tion body, then the European certi

f

ying bodies partici

-

patin

g

in the ENE

C

a

g

reement treat this product as

i

f

the

y

had tested and certi

f

ied it themselves. Further

testin

g

and certi

f

ication by one o

f

these bodies is no

l

on

g

er necessary

.

The ENE

C

mark can be obtained for luminaires fo

r

w

hi

c

h

a

E

uro

p

ean stan

d

ar

d

ex

i

sts.

L

um

i

na

i

re accesso-

r

i

es suc

h

as

b

a

ll

asts,

ig

n

i

t

i

on un

i

ts,

l

amp soc

k

ets an

d

capacitors can also be issued an ENE

C

mark if the

y

satis

f

y the correspondin

g

EN standard

.

7.7

Radio

i

nt

e

r

fe

r

e

n

ce

S

elected luminaires must compl

y

with the international

re

q

uirements such as

C

I

S

PR 15 and

C

I

S

PR-22 A or B

,

and in practice, radio inter

f

erence is low enou

g

h so

that no ne

g

ative e

ff

ects are expected on the environ

-

me

n

t.

Even thou

g

h i

g

nition pulses

f

rom an i

g

nition unit with-

ou

t

cu

t-

ou

t

ca

n

cause

r

ad

i

o

int

e

r

fe

r

e

n

ce

i

f

with

a

de-

f

ective lam

p

,

there are no regulations for this case

g

. Th

e

interferences can be extensive.

O

ne solution is swift

replacement o

f

the de

f

ective lamp or use o

f

i

g

nition

u

nit

s

with

a

cu

t-

ou

t

fea

t

u

r

e

. Th

ese

de

t

ec

t th

e

defec

t

or

the absence o

f

the lamp and switch o

ff

the ignition unit

a

f

ter a limited time period o

f

f

utile i

g

nition attempts.

The unit has to be disconnected

f

rom the

g

rid powe

r

supp

ly

to reset t

h

e t

i

mer

.

7.8 RoH

S

conformit

y

A

ll products brou

g

ht onto the market in Member

S

tates

of the European Union b

y

OS

RAM since 1 Jul

y

2006

compl

y

with the requirements of the EC directive

2002

/

95

/

E

C

“on the restriction of the use of certain

ha

z

a

r

dous

subs

t

a

n

ces

in

e

l

ec

tri

ca

l

a

n

d

e

l

ec

tr

o

ni

c

equipment”

(

RoH

S).

A

s a

f

undamental rule, our products contain no cadmi

-

u

m,

h

exava

l

ent c

h

rom

i

um, po

lyb

rom

i

nate

d

bi

p

h

en

yl

s

(

PBB

)

, pol

y

brominated diphen

y

lether

(

PBDE

)

or lead,

and

f

ul

f

ill the re

q

uirements o

f

the directive

f

or the use

o

f

mercur

y.

7.9

O

ptical desi

g

n of reflector

s

7.9.1

C

ondensate in the lam

p

Whil

e t

h

e mercur

y

i

n meta

l

h

a

lid

e

l

amps evaporates

completel

y

when operated at

f

ull power, the metal ha-

lides are in saturated state. There is there

f

ore alwa

y

s a

sur

p

lus o

f

condensed metal halides at the “cold s

p

ot”

i

n t

he

a

r

c

t

ube

.

Th

e

b

a

l

ance

b

etween con

d

ense

d

an

d

eva

p

orate

d

p

art

o

f

metal halides de

p

ends on the tem

p

erature o

f

the

arc tube wall. The coldest spot o

f

the tube where the

m

eta

l

h

a

lid

es

h

ave con

d

ense

d

i

s usua

lly

at t

h

e

b

ottom

of

th

e

t

ube

.

7.

9

.

2

P

ro

j

ect

i

on o

f

t

h

e con

d

ensate

The li

g

ht radiated

f

rom the plasma projects the con

-

densate o

f

the lam

p

so that the re

f

lector needs to mix

t

h

e em

i

tte

d

ligh

t to ensure

h

omo

g

enous ra

di

at

i

on.

I

n

p

articular when the burner is horizontal, the radiation

components

f

rom the upper hal

f

o

f

the burner and the

lower hal

f

o

f

the burner have to overla

p

and be mixed

durin

g

projection. I

f

the re

f

lector cannot ensure this,

the condensate o

f

the lam

p

is

p

ro

j

ected and a

pp

ears

on a w

hi

te wa

ll

as a

y

e

ll

ow mar

k

.

Figure 38: Example for condensate precipitation

in the lamp

Burning

position

45° angle

Horizontal

burning

position

Condensate

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 55 56

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