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| PDSH 984
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! Y/ S' S4 b/ k0 ]* p | Temperature measurement on the battery
) n) Z. S) z! q | A.4.2a) – A.5.2a)4 q b, l6 c" s) o2 y, z q3 t* _9 a
| 60598-2-22(ed.3);am1;am2
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Standard(s):0 I. _4 s0 `! i; {3 F5 {% e7 Q
IEC 60598-2-22/1997 A1/2002 A2/20081 I9 H. S, H! X: n/ f2 C1 f( n
Subclause(s): A.4.2a) – A.5.2a)
4 Y; ?0 D5 U9 \ v& q, j* iNo. Year PDSH 0984 2010
% Z e3 H: r" u1 H4 R" _Category: LITE Developed by: ETF5 OSM/LUM
! {5 r; Q; S8 T ~Subject:3 J6 N2 t/ z/ x. l, v; l( k1 {
Temperature measurement on the battery0 p% M; K0 R3 V/ _! g
Key words:
& e' `! ]' x& D# u# i- Thermocouple
/ f" O W2 B% S% I; }0 O$ E* E- ]$ _) P- Battery body$ J- c# A+ J5 L C+ X: F& O
- Hottest part# x& Z# V0 ?, Z) N3 m, E( S
To be approved at the 49th CTL Plenary Meeting, in 20120 p. `' _; x; s$ A! \) l. m
Question:3 u: {( T1 e+ K. ?
Consider a self-contained emergency luminaire with the battery near to the transformer (distance of about
( A3 a# i( U r( h, n9 r2 mm). Please advise how could the measurement requirement of the above subclauses, in which a
0 z- F& k2 l1 e7 f3 V; lthermocouple is to be placed within 5 mm but not touching the cells of the battery compartment of the
. ?) R; \" C4 l* V' T/ S7 Dluminaire be fulfilled?
" ~& @: V6 k+ e3 S/ Z- m" n, xDecision:: ^8 F% e4 G4 F" `9 _) c/ H
To put the thermocouple midpoint between the transformer and the battery.
: l6 f- F9 H5 ^( R) W7 UQuestion:) z" n) i; ~& k1 w0 l" o) A
According to the above mentioned decision, in case of temperature measurement on the battery when this8 b J4 o& f: U4 v$ X% W4 I' G
is only 2 mm away from the transformer, the thermocouple has to be put at the midpoint between the two& y) Q7 k" g1 s; G8 Z$ R* e& m Z/ ^3 r, |
parts. How should the thermocouple be placed if an insulating material of thickness less than 5 mm fills
% M' O# _, O" C/ i) \% Vthe space between the battery and the transformer?9 g* F$ I! I4 d* m' \: F y% e
Decision:
1 ?) {2 i9 G/ i }7 o, l- WIn direct contact with the hottest part of the battery body.3 q( l0 U- I# Z' t# m+ P4 V
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